17-Network Management and Monitoring Command Reference

HomeSupportResource CenterReference GuidesCommand ReferencesH3C MSR810[830][2600][3600] Routers Command Reference(V7)-R0821-6W50217-Network Management and Monitoring Command Reference
12-Process monitoring and maintenance commands
Title Size Download
12-Process monitoring and maintenance commands 233.97 KB

Process monitoring and maintenance commands

Supported storage media depend on the device model. The examples in this chapter use the flash memory.

The display memory, display process, display process cpu, monitor process and monitor thread commands display information about both user processes and kernel threads. In these commands, "process" refers to both user processes and kernel threads.

display exception context

Use display exception context to display context information of process exceptions.

Syntax

In standalone mode:

display exception context [ count value ]

In IRF mode:

display exception context [ count value ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

count value: Specifies the number of context information entries, in the range of 1 to 20. The default value is 1.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays context information of process exceptions on the IRF master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

The system generates a context information entry for each process exception. A context information entry includes the process ID, the crash time, the core dump file directory, stack information, and register information.

Examples

# Display the exception context information on the x86-based 32-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 120 (routed)

Crash signal: SIGBUS

Crash time: Tue Apr  9 17:14:30 2013

Core file path:

flash:/core/node0_routed_120_7_20130409-171430_1365527670.core

#0  0xb7caba4a

#1  0x0804cb79

#2  0xb7cd77c4

#3  0x08049f45

Backtrace stopped.

                          Registers' content

  eax:0xfffffffc   ebx:0x00000003   ecx:0xbfe244ec   edx:0x0000000a

  esp:0xbfe244b8   ebp:0xbfe244c8   esi:0xffffffff   edi:0xbfe24674

  eip:0xb7caba4a eflag:0x00000292    cs:0x00000073    ss:0x0000007b

   ds:0x0000007b    es:0x0000007b    fs:0x00000000    gs:0x00000033

# Display the exception context information on the x86-based 64-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 121 (routed)

Crash signal: SIGBUS

Crash time: Sun Mar 31 11:12:21 2013

Core file path:

flash:/core/node0_routed_121_7_20130331-111221_1364728341.core

#0  0x00007fae7dbad20c

#1  0x00000000004059fa

#2  0x00007fae7dbd96c0

#3  0x0000000000402b29

Backtrace stopped.

                          Registers' content

       rax:0xfffffffffffffffc       rbx:0x00007fff88a5dd10

       rcx:0xffffffffffffffff       rdx:0x000000000000000a

       rsi:0x00007fff88a5dd10       rdi:0x0000000000000003

       rbp:0x00007fff88a5dcf0       rsp:0x00007fff88a5dcf0

        r8:0x00007fae7ea587e0        r9:0x0000000000000079

       r10:0xffffffffffffffff       r11:0x0000000000000246

       r12:0x0000000000405b18       r13:0x00007fff88a5ff7a

       r14:0x00007fff88a5de30       r15:0x0000000000000000

       rip:0x00007fae7dbad20c      flag:0x0000000000000246

        cs:0x0000000000000033        ss:0x000000000000002b

        ds:0x0000000000000000        es:0x0000000000000000

        fs:0x0000000000000000        gs:0x0000000000000000

   fs_base:0x00007fae80a5d6a0   gs_base:0x0000000000000000

   orig_ax:0x00000000000000e8

# Display the exception context information on the PowerPC-based 32-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 133 (routed)

Crash signal: SIGBUS

Crash time: Wed Apr 10 15:47:49 2013

Core file path:

flash:/core/node0_routed_133_7_20130410-154749_1365608869.core

#0  0x184720bc

#1  0x10006b4c

Backtrace stopped.

                          Registers' content

grp00: 0x000000ee 0x7ffd6ad0 0x1800f440 0x00000004

grp04: 0x7ffd6af8 0x0000000a 0xffffffff 0x184720bc

grp08: 0x0002d200 0x00000003 0x00000001 0x1847209c

grp12: 0x10006b4c 0x10020534 0xd6744100 0x00000000

grp16: 0x00000000 0xa0203ff0 0xa028b12c 0xa028b13c

grp20: 0xa028b148 0xa028b168 0xa028b178 0xa028b190

grp24: 0xa028b1a8 0xa028b1b8 0x00000000 0x7ffd6c08

grp28: 0x10006cac 0x7ffd6f92 0x184c1b84 0x7ffd6ae0

 

  nip:0x184720bc    lr:0x10006b4c    cr:0x38000022   ctr:0x1847209c

  msr:0x0002db00   xer:0x00000000   ret:0xfffffffc dsisr:0x08000000

  gr3:0x00000003    mq:0x00000000  trap:0x00000c00   dar:0x1833114c

# Display the exception context information on the PowerPC-based 64-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 172 (routed)

Crash signal: SIGBUS

Crash time: Sat Sep 15 16:53:16 2007

Core file path:

flash:/core/node1_routed_172_7_20070915-165316_1189875196.core

#0  0x00000fff803c66b4

#1  0x0000000010009b94

#2  0x00000fff80401814

Backtrace stopped.

                          Registers' content

     grp00: 0x00000000000000ee 0x00000fffffd04840

     grp02: 0x00000fff80425c28 0x0000000000000004

     grp04: 0x00000fffffd048c0 0x000000000000000a

     grp06: 0xffffffffffffffff 0x00000fff803c66b4

     grp08: 0x000000008002d000 0x0000000000000000

     grp10: 0x0000000000000000 0x0000000000000000

     grp12: 0x0000000000000000 0x00000fff80a096b0

     grp14: 0x000000007b964c00 0x000000007b7d0000

     grp16: 0x0000000000000001 0x000000000000000b

     grp18: 0x0000000000000031 0x0000000000a205b8

     grp20: 0x0000000000a20677 0x0000000000000000

     grp22: 0x000000007bb91014 0x0000000000000000

     grp24: 0xc0000000005ae1c8 0x0000000000000000

     grp26: 0xc0000001f00bff20 0xc0000001f00b0000

     grp28: 0x00000fffffd04a30 0x000000001001aed8

     grp30: 0x00000fffffd04fae 0x00000fffffd04840

 

       nip:0x00000fff803c66b4        lr:0x0000000010009b94

        cr:0x0000000058000482       ctr:0x00000fff803c66ac

       msr:0x000000008002d000       xer:0x0000000000000000

       ret:0xfffffffffffffffc     dsisr:0x0000000000000000

       gr3:0x0000000000000003     softe:0x0000000000000001

      trap:0x0000000000000c00       dar:0x00000fff8059d14c

# Display the exception context information on the MIPS-based 32-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 182 (routed)

Crash signal: SIGBUS

Crash time: Sun Jan  2 08:11:38 2013

Core file path:

flash:/core/node4_routed_182_10_20130102-081138_1293955898.core

#0  0x2af2faf4

#1  0x00406d8c

Backtrace stopped.

                          Registers' content

 zero:0x00000000   at:0x1000dc00   v0:0x00000004   v1:0x00000003

   a0:0x00000003   a1:0x7fd267e8   a2:0x0000000a   a3:0x00000001

   t0:0x00000000   t1:0xcf08fa14   t2:0x80230510   t3:0xfffffff8

   t4:0x69766520   t5:0x00000000   t6:0x63cc6000   t7:0x44617461

   s0:0x7fd26f81   s1:0x00401948   s2:0x7fd268f8   s3:0x803e1db0

   s4:0x803e1da0   s5:0x803e1d88   s6:0x803e1d70   s7:0x803e1d60

   t8:0x00000008   t9:0x2af2fae0   k0:0x00000000   k1:0x00000000

   gp:0x2af9a3a0   sp:0x7fd267c0   s8:0x7fd267c0   ra:0x00406d8c

   sr:0x0000dc13   lo:0xef9db265   hi:0x0000003f  bad:0x2add2010

cause:0x00800020   pc:0x2af2faf4

# Display the exception context information on the MIPS-based 64-bit terminal.

<Sysname> display exception context

Index 1 of 1

------------------------------

Crashed PID: 270 (routed)

Crash signal: SIGBUS

Crash time: Wed Mar 27 12:39:12 2013

Core file path:

flash:/core/node16_routed_270_10_20130327-123912_1364387952.core

#0  0x0000005555a3bcb4

#1  0x0000000120006c1c

Backtrace stopped.

                          Registers' content

      zero:0x0000000000000000        at:0x0000000000000014

        v0:0x0000000000000004        v1:0x0000000000000003

        a0:0x0000000000000003        a1:0x000000ffff899d90

        a2:0x000000000000000a        a3:0x0000000000000001

        a4:0x0000005555a9b4e0        a5:0x0000000000000000

        a6:0xffffffff8021349c        a7:0x20696e206368616e

        t0:0x0000000000000000        t1:0xffffffff80105068

        t2:0xffffffff80213890        t3:0x0000000000000008

        s0:0x0000005555a99c40        s1:0x000000ffff89af5f

        s2:0x0000000120007320        s3:0x0000005555a5f470

        s4:0x000000ffff899f80        s5:0xffffffff803cc6c0

        s6:0xffffffff803cc6a8        s7:0xffffffff803cc690

        t8:0x0000000000000002        t9:0x0000005555a3bc98

        k0:0x0000000000000000        k1:0x0000000000000000

        gp:0x0000000120020460        sp:0x000000ffff899d70

        s8:0x000000ffff899d80        ra:0x0000000120006c1c

        sr:0x000000000400fff3        lo:0xdf3b645a1cac08c9

        hi:0x000000000000007f       bad:0x000000555589ba84

     cause:0x0000000000800020        pc:0x0000005555a3bcb4

Table 1 Command output

Filed

Description

Crashed PID

ID of the crashed process.

Crash signal

Signals that led to the crash:

·     SIGABRT—Abort.

·     SIGBUS—Bus error.

·     SIGFPE—Erroneous arithmetic operation.

·     SIGILL—Illegal hardware instructions.

·     SIGQUIT—Quit signal sent by the controlling terminal.

·     SIGSEGV—Invalid memory access.

·     SIGSYS—Invalid system call.

·     SIGTRAP—Trap message.

·     SIGXCPU—CPU usage limit exceeded.

·     SIGXFSZ—File size limit exceeded.

·     SIGUNKNOW—Unknown reason.

Crash time

Time when the crash occurred.

Core file path

Directory where the core dump file is saved.

Backtrace stopped

All stack information has been displayed.

Related commands

reset exception context

display exception filepath

Use display exception filepath to display the core dump file directory.

Syntax

In standalone mode:

display exception filepath

In IRF mode:

display exception filepath [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays the core dump file directory on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# (In standalone mode.) Display the core dump file directory on the MPU.

<Sysname> display exception filepath

The exception filepath is flash:.

# (In IRF mode.) Display the core dump file directory on the specified slot.

<Sysname> display exception filepath slot 1

The exception filepath on slot 1 is flash:.

display kernel deadloop

Use display kernel deadloop to display kernel thread deadloop information.

Syntax

In standalone mode:

display kernel deadloop show-number [ offset ] [ verbose ]

In IRF mode:

display kernel deadloop show-number [ offset ] [ verbose ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

show-number: Specifies the number of deadloops to display, in the range of 1 to 10.

offset: Specifies the offset between the starting deadloop and the most recent deadloop, in the range of 0 to 9. The default value is 0.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays kernel thread deadloop information on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# (In standalone mode.) Display brief information about the most recent kernel thread deadloop.

<Sysname> display kernel deadloop 1

----------------- Deadloop record 1 -----------------

Description          : BUG: soft lockup - CPU#0 stuck for 61! [comsh: 16306]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 0

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

# (In standalone mode.) Display detailed information about the most recent kernel thread deadloop.

<Sysname> display kernel deadloop 1 verbose

----------------- Deadloop record 1 -----------------

Description          : BUG: soft lockup - CPU#0 stuck for 61! [comsh: 16306]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 0

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

 

Last 5 thread switches : migration/0 (11:16:00.823018)-->

                         swapper (11:16:00.833018)-->

                         kthreadd (11:16:00.833518)-->

                         swapper (11:16:00.833550)-->

                         disk (11:16:00.833560)

 

Register content:

Reg:       r0, Val = 0x00000000 ; Reg:       r1, Val = 0xe2be5ea0 ;

Reg:       r2, Val = 0x00000000 ; Reg:       r3, Val = 0x77777777 ;

Reg:       r4, Val = 0x00000000 ; Reg:       r5, Val = 0x00001492 ;

Reg:       r6, Val = 0x00000000 ; Reg:       r7, Val = 0x0000ffff ;

Reg:       r8, Val = 0x77777777 ; Reg:       r9, Val = 0x00000000 ;

Reg:      r10, Val = 0x00000001 ; Reg:      r11, Val = 0x0000002c ;

Reg:      r12, Val = 0x057d9484 ; Reg:      r13, Val = 0x00000000 ;

Reg:      r14, Val = 0x00000000 ; Reg:      r15, Val = 0x02000000 ;

Reg:      r16, Val = 0xe2be5f00 ; Reg:      r17, Val = 0x00000000 ;

Reg:      r18, Val = 0x00000000 ; Reg:      r19, Val = 0x00000000 ;

Reg:      r20, Val = 0x024c10f8 ; Reg:      r21, Val = 0x057d9244 ;

Reg:      r22, Val = 0x00002000 ; Reg:      r23, Val = 0x0000002c ;

Reg:      r24, Val = 0x00000002 ; Reg:      r25, Val = 0x24000024 ;

Reg:      r26, Val = 0x00000000 ; Reg:      r27, Val = 0x057d9484 ;

Reg:      r28, Val = 0x0000002c ; Reg:      r29, Val = 0x00000000 ;

Reg:      r30, Val = 0x0000002c ; Reg:      r31, Val = 0x00000000 ;

Reg:       cr, Val = 0x84000028 ; Reg:      nip, Val = 0x057d9550 ;

Reg:      xer, Val = 0x00000000 ; Reg:       lr, Val = 0x0186eff0 ;

Reg:      ctr, Val = 0x682f7344 ; Reg:      msr, Val = 0x00784b5c ;

Reg:     trap, Val = 0x0000b030 ; Reg:      dar, Val = 0x77777777 ;

Reg:    dsisr, Val = 0x40000000 ; Reg:   result, Val = 0x00020300 ;

 

Dump stack (total 1024 bytes, 16 bytes/line):

0xe2be5ea0: 02 be 5e c0 24 00 00 24 00 00 00 00 05 7d 94 84

0xe2be5eb0: 00 00 00 04 00 00 00 00 00 00 00 28 05 8d 34 c4

0xe2be5ec0: 02 be 60 a0 01 86 ef f0 00 00 00 00 00 00 00 00

0xe2be5ed0: 02 04 05 b4 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ef0: 95 47 73 35 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f00: a0 e1 64 21 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f10: 00 00 00 00 00 00 00 00 00 00 00 00 01 e9 00 00

0xe2be5f20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f30: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be5f40: 02 be 61 e0 00 00 00 02 00 00 00 00 02 44 b3 a4

0xe2be5f50: 02 be 5f 90 00 00 00 08 02 be 5f e0 00 00 00 08

0xe2be5f60: 02 be 5f 80 00 ac 1b 14 00 00 00 00 00 00 00 00

0xe2be5f70: 05 b4 5f 90 02 be 5f e0 00 00 00 30 02 be 5f e0

0xe2be5f80: 02 be 5f c0 00 ac 1b f4 00 00 00 00 02 45 00 00

0xe2be5f90: 00 03 00 00 00 00 00 00 02 be 5f e0 00 00 00 30

0xe2be5fa0: 02 be 5f c0 00 ac 1b 14 61 f1 2e ae 02 45 00 00

0xe2be5fb0: 02 44 b3 74 02 be 5f d0 00 00 00 30 02 be 5f e0

0xe2be5fc0: 02 be 60 60 01 74 ff f8 00 00 00 00 00 00 08 00

0xe2be5fd0: 02 be 5f f0 00 e8 93 7e 02 be 5f f8 02 be 5f fc

0xe2be5fe0: 00 00 00 00 00 00 00 00 00 00 00 00 02 be 60 18

0xe2be5ff0: 02 be 60 10 00 e9 65 98 00 00 00 58 00 00 2a 4f

0xe2be6000: 02 be 60 10 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6010: 02 be 60 40 00 e8 c6 a0 00 00 11 17 00 00 00 00

0xe2be6020: 02 be 60 40 00 00 00 00 00 00 00 00 02 be 60 98

0xe2be6030: 02 27 00 00 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6040: 02 be 60 60 00 00 00 01 00 00 b0 30 02 be 60 98

0xe2be6050: 00 00 00 04 02 21 00 00 00 00 00 00 01 e9 00 00

0xe2be6060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be6070: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be6080: 02 be 61 e0 00 00 00 02 00 00 00 00 02 be 61 70

0xe2be6090: 00 00 00 00 02 21 00 00 05 8d 34 c4 05 7d 92 44

 

Call trace:

Function Address = 0x8012a4b4

Function Address = 0x8017989c

Function Address = 0x80179b30

Function Address = 0x80127438

Function Address = 0x8012d734

Function Address = 0x80100a00

Function Address = 0xe0071004

Function Address = 0x8016ce0c

Function Address = 0x801223a0

  

Instruction dump:

41a2fe9c 812300ec 800200ec 7f890000 409efe8c 80010014 540b07b9 40a2fe80

4bfffe6c 80780290 7f64db78 4804ea35 <807f002c> 38800000 38a00080 3863000c

# (In IRF mode.) Display brief information about the most recent kernel thread deadloop.

<Sysname> display kernel deadloop 1

----------------- Deadloop record 1 -----------------

Description          : BUG: soft lockup - CPU#0 stuck for 61! [comsh: 16306]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 1

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

# (In IRF mode.) Display detailed information about the most recent kernel thread deadloop.

<Sysname> display kernel deadloop 1 verbose

----------------- Deadloop record 1 -----------------

Description          : BUG: soft lockup - CPU#0 stuck for 61! [comsh: 16306]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 1

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

 

Last 5 thread switches : migration/0 (11:16:00.823018)-->

                         swapper (11:16:00.833018)-->

                         kthreadd (11:16:00.833518)-->

                         swapper (11:16:00.833550)-->

                         disk (11:16:00.833560)

 

Register content:

Reg:       r0, Val = 0x00000000 ; Reg:       r1, Val = 0xe2be5ea0 ;

Reg:       r2, Val = 0x00000000 ; Reg:       r3, Val = 0x77777777 ;

Reg:       r4, Val = 0x00000000 ; Reg:       r5, Val = 0x00001492 ;

Reg:       r6, Val = 0x00000000 ; Reg:       r7, Val = 0x0000ffff ;

Reg:       r8, Val = 0x77777777 ; Reg:       r9, Val = 0x00000000 ;

Reg:      r10, Val = 0x00000001 ; Reg:      r11, Val = 0x0000002c ;

Reg:      r12, Val = 0x057d9484 ; Reg:      r13, Val = 0x00000000 ;

Reg:      r14, Val = 0x00000000 ; Reg:      r15, Val = 0x02000000 ;

Reg:      r16, Val = 0xe2be5f00 ; Reg:      r17, Val = 0x00000000 ;

Reg:      r18, Val = 0x00000000 ; Reg:      r19, Val = 0x00000000 ;

Reg:      r20, Val = 0x024c10f8 ; Reg:      r21, Val = 0x057d9244 ;

Reg:      r22, Val = 0x00002000 ; Reg:      r23, Val = 0x0000002c ;

Reg:      r24, Val = 0x00000002 ; Reg:      r25, Val = 0x24000024 ;

Reg:      r26, Val = 0x00000000 ; Reg:      r27, Val = 0x057d9484 ;

Reg:      r28, Val = 0x0000002c ; Reg:      r29, Val = 0x00000000 ;

Reg:      r30, Val = 0x0000002c ; Reg:      r31, Val = 0x00000000 ;

Reg:       cr, Val = 0x84000028 ; Reg:      nip, Val = 0x057d9550 ;

Reg:      xer, Val = 0x00000000 ; Reg:       lr, Val = 0x0186eff0 ;

Reg:      ctr, Val = 0x682f7344 ; Reg:      msr, Val = 0x00784b5c ;

Reg:     trap, Val = 0x0000b030 ; Reg:      dar, Val = 0x77777777 ;

Reg:    dsisr, Val = 0x40000000 ; Reg:   result, Val = 0x00020300 ;

 

Dump stack (total 1024 bytes, 16 bytes/line):

0xe2be5ea0: 02 be 5e c0 24 00 00 24 00 00 00 00 05 7d 94 84

0xe2be5eb0: 00 00 00 04 00 00 00 00 00 00 00 28 05 8d 34 c4

0xe2be5ec0: 02 be 60 a0 01 86 ef f0 00 00 00 00 00 00 00 00

0xe2be5ed0: 02 04 05 b4 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ef0: 95 47 73 35 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f00: a0 e1 64 21 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f10: 00 00 00 00 00 00 00 00 00 00 00 00 01 e9 00 00

0xe2be5f20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f30: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be5f40: 02 be 61 e0 00 00 00 02 00 00 00 00 02 44 b3 a4

0xe2be5f50: 02 be 5f 90 00 00 00 08 02 be 5f e0 00 00 00 08

0xe2be5f60: 02 be 5f 80 00 ac 1b 14 00 00 00 00 00 00 00 00

0xe2be5f70: 05 b4 5f 90 02 be 5f e0 00 00 00 30 02 be 5f e0

0xe2be5f80: 02 be 5f c0 00 ac 1b f4 00 00 00 00 02 45 00 00

0xe2be5f90: 00 03 00 00 00 00 00 00 02 be 5f e0 00 00 00 30

0xe2be5fa0: 02 be 5f c0 00 ac 1b 14 61 f1 2e ae 02 45 00 00

0xe2be5fb0: 02 44 b3 74 02 be 5f d0 00 00 00 30 02 be 5f e0

0xe2be5fc0: 02 be 60 60 01 74 ff f8 00 00 00 00 00 00 08 00

0xe2be5fd0: 02 be 5f f0 00 e8 93 7e 02 be 5f f8 02 be 5f fc

0xe2be5fe0: 00 00 00 00 00 00 00 00 00 00 00 00 02 be 60 18

0xe2be5ff0: 02 be 60 10 00 e9 65 98 00 00 00 58 00 00 2a 4f

0xe2be6000: 02 be 60 10 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6010: 02 be 60 40 00 e8 c6 a0 00 00 11 17 00 00 00 00

0xe2be6020: 02 be 60 40 00 00 00 00 00 00 00 00 02 be 60 98

0xe2be6030: 02 27 00 00 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6040: 02 be 60 60 00 00 00 01 00 00 b0 30 02 be 60 98

0xe2be6050: 00 00 00 04 02 21 00 00 00 00 00 00 01 e9 00 00

0xe2be6060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be6070: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be6080: 02 be 61 e0 00 00 00 02 00 00 00 00 02 be 61 70

0xe2be6090: 00 00 00 00 02 21 00 00 05 8d 34 c4 05 7d 92 44

 

Call trace:

Function Address = 0x8012a4b4

Function Address = 0x8017989c

Function Address = 0x80179b30

Function Address = 0x80127438

Function Address = 0x8012d734

Function Address = 0x80100a00

Function Address = 0xe0071004

Function Address = 0x8016ce0c

Function Address = 0x801223a0

  

Instruction dump:

41a2fe9c 812300ec 800200ec 7f890000 409efe8c 80010014 540b07b9 40a2fe80

4bfffe6c 80780290 7f64db78 4804ea35 <807f002c> 38800000 38a00080 3863000c

Table 2 Command output

Field

Description

Description

Description for the kernel thread deadloop, including the CPU number, thread running time, thread name, and thread number.

Recorded at

Time when the kernel thread deadloop was recorded, with microsecond precision.

Occurred at

Time when the kernel thread deadloop occurred, with microsecond precision.

Instruction address

Instruction address for the kernel thread deadloop.

Thread

Name and number of the kernel thread deadloop.

Context

Context for the kernel thread deadloop.

Cpu

Number of the CPU where the kernel thread ran.

VCPU ID

Number of the CPU core where the kernel thread ran.

Kernel module info

Information about kernel modules that had been loaded when the kernel thread deadloop was detected, including:

·     Module name—Kernel module name.

·     Module address—Memory address of the module.

Last 5 thread switches

Last five kernel thread switches on the CPU before the kernel thread deadloop was detected, including kernel thread name and kernel thread switching time with microsecond precision.

Register content

Register information:

·     Reg—Name of a register.

·     Val—Value saved in a register.

Dump stack

Stack information.

Call trace

Function call stack information, which shows the instruction address of a called function at each level.

Instruction dump

Instruction code when the kernel thread deadloop was detected. ffffffff indicates an illegitimate instruction code.

No information to display

No kernel thread deadloop information.

Related commands

reset kernel deadloop

display kernel deadloop configuration

Use display kernel deadloop configuration to display kernel thread deadloop detection configuration.

Syntax

In standalone mode:

display kernel deadloop configuration

In IRF mode:

display kernel deadloop configuration [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays the kernel thread deadloop detection configuration for the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Display kernel thread deadloop detection configuration.

<Sysname> display kernel deadloop configuration

Thread dead loop detection: Enabled

Dead loop timer (in seconds): 20

Cores with dead loop detection enabled: 0-1

Dead loop action threshold: 2 consecutive dead loops

Threads excluded from monitoring: 1

  TID:     15   Name: co0   

Table 3 Command output

Field

Description

Dead loop timer (in seconds): n

Time interval (in seconds) to identify a kernel thread deadloop. A kernel thread deadloop occurs if a kernel thread runs more than n seconds.

Threads excluded from monitoring

Kernel threads excluded from kernel thread deadloop detection. This field appears only if the monitor kernel deadloop exclude-thread command is configured.

Name

Kernel thread name.

TID

Kernel thread number.

No thread is excluded from monitoring

All kernel threads are monitored by kernel thread deadloop detection.

display kernel exception

Use display kernel exception to display kernel thread exception information.

Syntax

In standalone mode:

display kernel exception show-number [ offset ] [ verbose ]

In IRF mode:

display kernel exception show-number [ offset ] [ verbose ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

show-number: Specifies the number of kernel exceptions to display, in the range of 1 to 10.

offset: Specifies the offset between the starting exception and the most recent exception, in the range of 0 to 9. The default value is 0.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays kernel thread exception information of the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

If an exception occurs to a running kernel thread, the system automatically records the exception information.

Examples

# (In standalone mode.) Display brief information about the most recent kernel thread exception.

<Sysname> display kernel exception 1

----------------- Exception record 1 -----------------

Description          : Oops[#0]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 0

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

                       module name (disk) module address (0xe00bd000)

# (In standalone mode.) Display detailed information about the most recent kernel thread exception.

<Sysname> display kernel exception 1 verbose

----------------- Exception record 1 -----------------

Description          : Oops[#0]

Recorded at          : 2013-05-01  11:16:00.823018

Occurred at          : 2013-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 0

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

                       module name (12500) module address (0xe00bd000)

 

Last 5 thread switches : migration/0 (11:16:00.823018)-->

                         swapper (11:16:00.833018)-->

                         kthreadd (11:16:00.833518)-->

                         swapper (11:16:00.833550)-->

                         disk (11:16:00.833560)

 

Register content:

Reg:       r0, Val = 0x00000000 ; Reg:       r1, Val = 0xe2be5ea0 ;

Reg:       r2, Val = 0x00000000 ; Reg:       r3, Val = 0x77777777 ;

Reg:       r4, Val = 0x00000000 ; Reg:       r5, Val = 0x00001492 ;

Reg:       r6, Val = 0x00000000 ; Reg:       r7, Val = 0x0000ffff ;

Reg:       r8, Val = 0x77777777 ; Reg:       r9, Val = 0x00000000 ;

Reg:      r10, Val = 0x00000001 ; Reg:      r11, Val = 0x0000002c ;

Reg:      r12, Val = 0x057d9484 ; Reg:      r13, Val = 0x00000000 ;

Reg:      r14, Val = 0x00000000 ; Reg:      r15, Val = 0x02000000 ;

Reg:      r16, Val = 0xe2be5f00 ; Reg:      r17, Val = 0x00000000 ;

Reg:      r18, Val = 0x00000000 ; Reg:      r19, Val = 0x00000000 ;

Reg:      r20, Val = 0x024c10f8 ; Reg:      r21, Val = 0x057d9244 ;

Reg:      r22, Val = 0x00002000 ; Reg:      r23, Val = 0x0000002c ;

Reg:      r24, Val = 0x00000002 ; Reg:      r25, Val = 0x24000024 ;

Reg:      r26, Val = 0x00000000 ; Reg:      r27, Val = 0x057d9484 ;

Reg:      r28, Val = 0x0000002c ; Reg:      r29, Val = 0x00000000 ;

Reg:      r30, Val = 0x0000002c ; Reg:      r31, Val = 0x00000000 ;

Reg:       cr, Val = 0x84000028 ; Reg:      nip, Val = 0x057d9550 ;

Reg:      xer, Val = 0x00000000 ; Reg:       lr, Val = 0x0186eff0 ;

Reg:      ctr, Val = 0x682f7344 ; Reg:      msr, Val = 0x00784b5c ;

Reg:     trap, Val = 0x0000b030 ; Reg:      dar, Val = 0x77777777 ;

Reg:    dsisr, Val = 0x40000000 ; Reg:   result, Val = 0x00020300 ;

 

Dump stack (total 1024 bytes, 16 bytes/line):

0xe2be5ea0: 02 be 5e c0 24 00 00 24 00 00 00 00 05 7d 94 84

0xe2be5eb0: 00 00 00 04 00 00 00 00 00 00 00 28 05 8d 34 c4

0xe2be5ec0: 02 be 60 a0 01 86 ef f0 00 00 00 00 00 00 00 00

0xe2be5ed0: 02 04 05 b4 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ef0: 95 47 73 35 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f00: a0 e1 64 21 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f10: 00 00 00 00 00 00 00 00 00 00 00 00 01 e9 00 00

0xe2be5f20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f30: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be5f40: 02 be 61 e0 00 00 00 02 00 00 00 00 02 44 b3 a4

0xe2be5f50: 02 be 5f 90 00 00 00 08 02 be 5f e0 00 00 00 08

0xe2be5f60: 02 be 5f 80 00 ac 1b 14 00 00 00 00 00 00 00 00

0xe2be5f70: 05 b4 5f 90 02 be 5f e0 00 00 00 30 02 be 5f e0

0xe2be5f80: 02 be 5f c0 00 ac 1b f4 00 00 00 00 02 45 00 00

0xe2be5f90: 00 03 00 00 00 00 00 00 02 be 5f e0 00 00 00 30

0xe2be5fa0: 02 be 5f c0 00 ac 1b 14 61 f1 2e ae 02 45 00 00

0xe2be5fb0: 02 44 b3 74 02 be 5f d0 00 00 00 30 02 be 5f e0

0xe2be5fc0: 02 be 60 60 01 74 ff f8 00 00 00 00 00 00 08 00

0xe2be5fd0: 02 be 5f f0 00 e8 93 7e 02 be 5f f8 02 be 5f fc

0xe2be5fe0: 00 00 00 00 00 00 00 00 00 00 00 00 02 be 60 18

0xe2be5ff0: 02 be 60 10 00 e9 65 98 00 00 00 58 00 00 2a 4f

0xe2be6000: 02 be 60 10 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6010: 02 be 60 40 00 e8 c6 a0 00 00 11 17 00 00 00 00

0xe2be6020: 02 be 60 40 00 00 00 00 00 00 00 00 02 be 60 98

0xe2be6030: 02 27 00 00 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6040: 02 be 60 60 00 00 00 01 00 00 b0 30 02 be 60 98

0xe2be6050: 00 00 00 04 02 21 00 00 00 00 00 00 01 e9 00 00

0xe2be6060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be6070: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be6080: 02 be 61 e0 00 00 00 02 00 00 00 00 02 be 61 70

0xe2be6090: 00 00 00 00 02 21 00 00 05 8d 34 c4 05 7d 92 44

 

Call trace:

Function Address = 0x8012a4b4

Function Address = 0x8017989c

Function Address = 0x80179b30

Function Address = 0x80127438

Function Address = 0x8012d734

Function Address = 0x80100a00

Function Address = 0xe0071004

Function Address = 0x8016ce0c

Function Address = 0x801223a0

  

Instruction dump:

41a2fe9c 812300ec 800200ec 7f890000 409efe8c 80010014 540b07b9 40a2fe80

4bfffe6c 80780290 7f64db78 4804ea35 <807f002c> 38800000 38a00080 3863000c

# (In IRF mode.) Display brief information about the most recent kernel thread exception.

<Sysname> display kernel exception 1

----------------- Exception record 1 -----------------

Description          : Oops[#0]

Recorded at          : 2017-05-01  11:16:00.823018

Occurred at          : 2017-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 1

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

                       module name (disk) module address (0xe00bd000)

# (In IRF mode.) Display detailed information about the most recent kernel thread exception.

<Sysname> display kernel exception 1 verbose

----------------- Exception record 1 -----------------

Description          : Oops[#0]

Recorded at          : 2017-05-01  11:16:00.823018

Occurred at          : 2017-05-01  11:16:00.823018

Instruction address  : 0x4004158c

Thread               : comsh (TID: 16306)

Context              : thread context

Slot                 : 1

Cpu                  : 0

VCPU ID              : 0

Kernel module info   : module name (mrpnc) module address (0xe332a000)

                       module name (12500) module address (0xe00bd000)

 

Last 5 thread switches : migration/0 (11:16:00.823018)-->

                         swapper (11:16:00.833018)-->

                         kthreadd (11:16:00.833518)-->

                         swapper (11:16:00.833550)-->

                         disk (11:16:00.833560)

 

Register content:

Reg:       r0, Val = 0x00000000 ; Reg:       r1, Val = 0xe2be5ea0 ;

Reg:       r2, Val = 0x00000000 ; Reg:       r3, Val = 0x77777777 ;

Reg:       r4, Val = 0x00000000 ; Reg:       r5, Val = 0x00001492 ;

Reg:       r6, Val = 0x00000000 ; Reg:       r7, Val = 0x0000ffff ;

Reg:       r8, Val = 0x77777777 ; Reg:       r9, Val = 0x00000000 ;

Reg:      r10, Val = 0x00000001 ; Reg:      r11, Val = 0x0000002c ;

Reg:      r12, Val = 0x057d9484 ; Reg:      r13, Val = 0x00000000 ;

Reg:      r14, Val = 0x00000000 ; Reg:      r15, Val = 0x02000000 ;

Reg:      r16, Val = 0xe2be5f00 ; Reg:      r17, Val = 0x00000000 ;

Reg:      r18, Val = 0x00000000 ; Reg:      r19, Val = 0x00000000 ;

Reg:      r20, Val = 0x024c10f8 ; Reg:      r21, Val = 0x057d9244 ;

Reg:      r22, Val = 0x00002000 ; Reg:      r23, Val = 0x0000002c ;

Reg:      r24, Val = 0x00000002 ; Reg:      r25, Val = 0x24000024 ;

Reg:      r26, Val = 0x00000000 ; Reg:      r27, Val = 0x057d9484 ;

Reg:      r28, Val = 0x0000002c ; Reg:      r29, Val = 0x00000000 ;

Reg:      r30, Val = 0x0000002c ; Reg:      r31, Val = 0x00000000 ;

Reg:       cr, Val = 0x84000028 ; Reg:      nip, Val = 0x057d9550 ;

Reg:      xer, Val = 0x00000000 ; Reg:       lr, Val = 0x0186eff0 ;

Reg:      ctr, Val = 0x682f7344 ; Reg:      msr, Val = 0x00784b5c ;

Reg:     trap, Val = 0x0000b030 ; Reg:      dar, Val = 0x77777777 ;

Reg:    dsisr, Val = 0x40000000 ; Reg:   result, Val = 0x00020300 ;

 

Dump stack (total 1024 bytes, 16 bytes/line):

0xe2be5ea0: 02 be 5e c0 24 00 00 24 00 00 00 00 05 7d 94 84

0xe2be5eb0: 00 00 00 04 00 00 00 00 00 00 00 28 05 8d 34 c4

0xe2be5ec0: 02 be 60 a0 01 86 ef f0 00 00 00 00 00 00 00 00

0xe2be5ed0: 02 04 05 b4 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5ef0: 95 47 73 35 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f00: a0 e1 64 21 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f10: 00 00 00 00 00 00 00 00 00 00 00 00 01 e9 00 00

0xe2be5f20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be5f30: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be5f40: 02 be 61 e0 00 00 00 02 00 00 00 00 02 44 b3 a4

0xe2be5f50: 02 be 5f 90 00 00 00 08 02 be 5f e0 00 00 00 08

0xe2be5f60: 02 be 5f 80 00 ac 1b 14 00 00 00 00 00 00 00 00

0xe2be5f70: 05 b4 5f 90 02 be 5f e0 00 00 00 30 02 be 5f e0

0xe2be5f80: 02 be 5f c0 00 ac 1b f4 00 00 00 00 02 45 00 00

0xe2be5f90: 00 03 00 00 00 00 00 00 02 be 5f e0 00 00 00 30

0xe2be5fa0: 02 be 5f c0 00 ac 1b 14 61 f1 2e ae 02 45 00 00

0xe2be5fb0: 02 44 b3 74 02 be 5f d0 00 00 00 30 02 be 5f e0

0xe2be5fc0: 02 be 60 60 01 74 ff f8 00 00 00 00 00 00 08 00

0xe2be5fd0: 02 be 5f f0 00 e8 93 7e 02 be 5f f8 02 be 5f fc

0xe2be5fe0: 00 00 00 00 00 00 00 00 00 00 00 00 02 be 60 18

0xe2be5ff0: 02 be 60 10 00 e9 65 98 00 00 00 58 00 00 2a 4f

0xe2be6000: 02 be 60 10 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6010: 02 be 60 40 00 e8 c6 a0 00 00 11 17 00 00 00 00

0xe2be6020: 02 be 60 40 00 00 00 00 00 00 00 00 02 be 60 98

0xe2be6030: 02 27 00 00 00 00 00 00 00 00 00 00 02 be 60 68

0xe2be6040: 02 be 60 60 00 00 00 01 00 00 b0 30 02 be 60 98

0xe2be6050: 00 00 00 04 02 21 00 00 00 00 00 00 01 e9 00 00

0xe2be6060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0xe2be6070: 00 00 00 00 00 00 00 00 02 be 66 c0 02 be 66 d0

0xe2be6080: 02 be 61 e0 00 00 00 02 00 00 00 00 02 be 61 70

0xe2be6090: 00 00 00 00 02 21 00 00 05 8d 34 c4 05 7d 92 44

 

Call trace:

Function Address = 0x8012a4b4

Function Address = 0x8017989c

Function Address = 0x80179b30

Function Address = 0x80127438

Function Address = 0x8012d734

Function Address = 0x80100a00

Function Address = 0xe0071004

Function Address = 0x8016ce0c

Function Address = 0x801223a0

  

Instruction dump:

41a2fe9c 812300ec 800200ec 7f890000 409efe8c 80010014 540b07b9 40a2fe80

4bfffe6c 80780290 7f64db78 4804ea35 <807f002c> 38800000 38a00080 3863000c

For more information about the command output, see Table 2.

Related commands

reset kernel exception

display kernel starvation configuration

Use display kernel starvation configuration to display kernel thread starvation detection configuration.

Syntax

In standalone mode:

display kernel starvation configuration

In IRF mode:

display kernel starvation configuration [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays kernel thread starvation detection configuration on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Display kernel thread starvation detection configuration.

<Sysname> display kernel starvation configuration

Thread starvation detection: Disabled

Starvation timer (in seconds): 10

Threads excluded from monitoring: 1

  TID:    123   Name: co0

Table 4 Command output

Field

Description

Starvation timer (in seconds): n

Time interval (in seconds) to identify a kernel thread starvation. A kernel thread starvation occurs if a kernel thread does not run within n seconds.

Threads excluded from monitoring

Kernel threads excluded from kernel thread starvation detection.

Name

Kernel thread name.

TID

Kernel thread number.

Related commands

monitor kernel starvation enable

monitor kernel starvation exclude-thread

monitor kernel starvation time

display process

Use display process to display process state information.

Syntax

In standalone mode:

display process [ all | job job-id | name process-name ]

In IRF mode:

display process [ all | job job-id | name process-name ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

all: Specifies all processes. With the all keyword or without any parameters, the command displays state information for all processes.

job job-id: Specifies a process by its job ID, in the range of 1 to 2147483647. Each process has a fixed job ID.

name process-name: Specifies a process by its name, a case-insensitive string of 1 to 15 characters that must not contain question marks or spaces.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays process state information on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Display state information for the process scmd.

<Sysname> display process name scmd

                             Job ID: 1

                                PID: 1

                         Parent JID: 0

                         Parent PID: 0

                    Executable path: /sbin/scmd

                           Instance: 0

                            Respawn: OFF

                      Respawn count: 1

             Max. spawns per minute: 0

                       Last started: Wed Jun  1 14:45:46 2013

                      Process state: sleeping

                          Max. core: 0

                               ARGS: -

    TID  LAST_CPU    Stack      PRI    State   HH:MM:SS:MSEC  Name

      1      0          0K      120      S     0:0:5:220      scmd

Table 5 Command output

Field

Description

Job ID

Job ID of the process. The job ID never changes.

PID

Number of the process. The number identifies the process, and it might change as the process restarts.

Parent JID

Job ID of the parent process.

Parent PID

Number of the parent process.

Executable path

Executable path of the process. For a kernel thread, this field displays a hyphen (-).

Instance

Instance number of the process. Whether a process can run multiple instances depends on the software implementation.

Respawn

Indicates whether the process restarts when an error occurs:

·     ON—The process automatically restarts.

·     OFF—The process does not automatically restarts.

Respawn count

Times that the process has restarted. The starting value is 1.

Max. spawns per minute

Maximum number of times that the process can restart within one minute. If the threshold is reached, the system automatically shuts down the process.

Last started

Time when the most recent restart occurred.

Process state

State of the process:

·     running—Running or waiting in the queue.

·     sleeping—Interruptible sleep.

·     traced or stopped—Stopped.

·     uninterruptible sleep—Uninterruptible sleep.

·     zombie—The process has quit, but some resources are not released.

Max. core

Maximum number of core dump files that the process can create. 0 indicates that the process never creates a core dump file. A process creates a core dump file after it abnormally restarts. If the number of core dump files reaches the maximum value, no more core dump files are created. Core dump files are helpful for troubleshooting.

ARGS

Parameters carried by the process during startup. If the process carries no parameters, this field displays a hyphen (-).

TID

Thread ID.

LAST_CPU

Number of the CPU on which the process is last scheduled.

Stack

Stack size.

PRI

Thread priority.

State

Thread state:

·     R—Running.

·     S—Sleeping.

·     T—Traced or stopped.

·     D—Uninterruptible sleep.

·     Z—Zombie.

HH:MM:SS:MSEC

Running time since the most recent start.

Name

Process name.

# Display state information for all processes.

<Sysname> display process all

    JID    PID %CPU %MEM STAT PRI TTY HH:MM:SS COMMAND

      1      1  0.0  0.0   S  120  -  00:00:04 scmd

      2      2  0.0  0.0   S  115  -  00:00:00 [kthreadd]

      3      3  0.0  0.0   S   99  -  00:00:00 [migration/0]

      4      4  0.0  0.0   S  115  -  00:00:05 [ksoftirqd/0]

      5      5  0.0  0.0   S   99  -  00:00:00 [watchdog/0]

      6      6  0.0  0.0   S  115  -  00:00:00 [events/0]

      7      7  0.0  0.0   S  115  -  00:00:00 [khelper]

      8      8  0.0  0.0   S  115  -  00:00:00 [kblockd/0]

      9      9  0.0  0.0   S  115  -  00:00:00 [ata/0]

     10     10  0.0  0.0   S  115  -  00:00:00 [ata_aux]

     11     11  0.0  0.0   S  115  -  00:00:00 [kseriod]

     12     12  0.0  0.0   S  120  -  00:00:00 [vzmond]

     13     13  0.0  0.0   S  120  -  00:00:00 [pdflush]

     14     14  0.0  0.0   S  120  -  00:00:00 [pdflush]

     15     15  0.0  0.0   S  115  -  00:00:00 [kswapd0]

     16     16  0.0  0.0   S  115  -  00:00:00 [aio/0]

     17     17  0.0  0.0   S  115  -  00:00:00 [scsi_eh_0]

     18     18  0.0  0.0   S  115  -  00:00:00 [scsi_eh_1]

     19     19  0.0  0.0   S  115  -  00:00:00 [scsi_eh_2]

     35     35  0.0  0.0   D  100  -  00:00:00 [lipc_topology]

---- More ----              

Table 6 Command output

Field

Description

JID

Job ID of a process. It never changes.

PID

Number of a process.

%CPU

CPU usage in percentage (%).

%MEM

Memory usage in percentage (%).

STAT

State of a process:

·     R—Running.

·     S—Sleeping.

·     T—Traced or stopped.

·     D—Uninterruptible sleep.

·     Z—Zombie.

PRI

Priority of a process for scheduling.

TTY

TTY used by a process.

HH:MM:SS

Running time since the most recent start. If the running time reaches or exceeds 100 hours, this field displays only the number of hours.

COMMAND

Name and parameters of a process. If square brackets ([ ]) exist in a process name, the process is a kernel thread.

display process cpu

Use display process cpu to display CPU usage of all processes.

Syntax

In standalone mode:

display process cpu

In IRF mode:

display process cpu [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays CPU usage of all processes on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Display CPU usage for all processes.

<Sysname> display process cpu

CPU utilization in 5 secs: 16.8%; 1 min: 4.7%; 5 mins: 4.7%

    JID      5Sec      1Min      5Min    Name

      1      0.0%      0.0%      0.0%    scmd

      2      0.0%      0.0%      0.0%    [kthreadd]

      3      0.1%      0.0%      0.0%    [ksoftirqd/0]

...

Table 7 Command output

Field

Description

CPU utilization in 5 secs: 16.8%; 1 min: 4.7%; 5 mins: 4.7%

System CPU usage within the last 5 seconds, 1 minute, and 5 minutes.

JID

Job ID of a process. It never changes.

5Sec

CPU usage of the process within the last 5 seconds.

1Min

CPU usage of the process within the last minute.

5Min

CPU usage of the process within the last 5 minutes.

Name

Name of the process. If square brackets ([ ]) exist in a process name, the process is a kernel thread.

display process log

Use display process log to display log information for all user processes.

Syntax

In standalone mode:

display process log

In IRF mode:

display process log [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays log information for all user processes on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Display log information for all user processes.

<Sysname> display process log

Process       JobID  PID    Abort Core Exit Kill StartTime      EndTime        

knotify       92     92     N     N    0    36   12-17 07:10:27 12-17 07:10:27 

knotify       93     93     N     N    0    --   12-17 07:10:27 12-17 07:10:27 

automount     94     94     N     N    0    --   12-17 07:10:27 12-17 07:10:28 

knotify       111    111    N     N    0    --   12-17 07:10:28 12-17 07:10:28 

comsh         121    121    N     N    0    --   12-17 07:10:30 12-17 07:10:30 

knotify       152    152    N     N    0    --   12-17 07:10:31 12-17 07:10:31 

autocfgd      155    155    N     N    0    --   12-17 07:10:31 12-17 07:10:31 

pkg_update    122    122    N     N    0    --   12-17 07:10:30 12-17 07:10:31

Table 8 Command output

Field

Description

Process

Name of a user process.

JobID

Job ID of a user process.

PID

ID of a user process.

Abort

Indicates whether the process exited abnormally:

·     Y—Yes.

·     N—No.

Core

Indicates whether the process can generate core dump files:

·     Y—Yes.

·     N—No.

Exit

Process exit code. This field displays two hyphens (--) if the process was killed by a signal.

Kill

Code of the signal that killed the process. This field displays two hyphens (--) if the process exited instead of being killed.

StartTime

Time when the user process started.

EndTime

Time when the user process ended.

display process memory

Use display process memory to display memory usage of all user processes.

Syntax

In standalone mode:

display process memory

In IRF mode:

display process memory [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays memory usage of all user processes on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

When a user process starts, it requests the following types of memory from the system:

·     Text memory—Stores code for the user process.

·     Data memory—Stores data for the user process.

·     Stack memory—Stores temporary data.

·     Dynamic memory—Heap memory dynamically assigned and released by the system according to the needs of the user process. To view dynamic memory information, execute the display process memory heap command.

Examples

# Display memory usage for all user processes.

<Sysname> display process memory

   JID       Text      Data      Stack    Dynamic    Name

     1        384      1800         16         36    scmd

     2          0         0          0          0    [kthreadd]

     3          0         0          0          0    [ksoftirqd/0]

     4          0         0          0          0    [watchdog/0]

     5          0         0          0          0    [events/0]

     6          0         0          0          0    [khelper]

    29          0         0          0          0    [kblockd/0]

    49          0         0          0          0    [vzmond]

    52          0         0          0          0    [pdflush]

---- More ----

Table 9 Command output

Field

Description

JID

Job ID of a process. It never changes.

Text

Text memory used by the user process, in KB. The value for a kernel thread is 0.

Data

Data memory used by the user process, in KB. The value for a kernel thread is 0.

Stack

Stack memory used by the user process, in KB. The value for a kernel thread is 0.

Dynamic

Dynamic memory used by the user process, in KB. The value for a kernel thread is 0.

Name

Name of the user process. If square brackets ([ ]) exist in a process name, the process is a kernel thread.

Related commands

display process memory heap

display process memory heap address

display process memory heap size

display process memory heap

Use display process memory heap to display the heap memory usage of a user process.

Syntax

In standalone mode:

display process memory heap job job-id [ verbose ]

In IRF mode:

display process memory heap job job-id [ verbose ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

job job-id: Specifies a user process by its job ID, in the range of 1 to 2147483647.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays the heap memory usage of the user process on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Heap memory comprises fixed-sized blocks such as 16-byte or 64-byte blocks. It stores data and variables used by the user process. When a user process starts, the system dynamically allocates heap memory to the process.

Each memory block has an address represented in hexadecimal format, which can be used to access the memory block. You can view memory block addresses by using the display process memory heap size command, and view memory block contents by using the display process memory heap address command.

Examples

# Display brief information about heap memory usage for the process identified by job ID 1.

<Sysname> display process memory heap job 1

Total virtual memory heap space(in bytes) :  2228224

Total physical memory heap space(in bytes) :  262144

Total allocated memory(in bytes)          :  161576

# Display detailed information about heap memory usage for the process identified by job ID 1.

<Sysname> display process memory heap job 1 verbose

Heap usage:

Size       Free      Used     Total     Free Ratio

16         8         52       60        13%

64         3         1262     1265      0.2%

128        2         207      209       1%

512        3         55       58        5.1%

4096       3         297      300       1%

8192       1         19       20        5%

81920      0         1        1         0%

Summary:

Total virtual memory heap space (in bytes)  :  2293760

Total physical memory heap space (in bytes) :  58368

Total allocated memory (in bytes)           :  42368

Table 10 Command output

Field

Description

Size

Size of each memory block, in bytes.

Free

Number of free memory blocks.

Used

Number of used memory blocks.

Total

Total number of memory blocks.

Free Ratio

Ratio of free memory to total memory. It helps identify fragment information.

Related commands

display process memory

display process memory heap address

display process memory heap size

display process memory heap address

Use display process memory heap address to display heap memory content starting from a specified memory block for a process.

Syntax

In standalone mode:

display process memory heap job job-id address starting-address length memory-length

In IRF mode:

display process memory heap job job-id address starting-address length memory-length [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

job job-id: Specifies a user process by its job ID, in the range of 1 to 2147483647.

address starting-address: Specifies the starting memory block by its address.

length memory-length: Specifies the memory block length in the range of 1 to 1024 bytes.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays heap memory content information on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

When a user process runs abnormally, the command helps locate the problem.

Examples

# Display 128-byte memory block content starting from the memory block 0xb7e30580 for the process job 1.

<Sysname> display process memory heap job 1 address b7e30580 length 128

B7E30580:  14 00 EF FF 00 00 00 00 E4 39 E2 B7 7C 05 E3 B7  .........9..|...   

B7E30590:  14 00 EF FF 2F 73 62 69 6E 2F 73 6C 62 67 64 00  ..../sbin/slbgd.   

B7E305A0:  14 00 EF FF 00 00 00 00 44 3B E2 B7 8C 05 E3 B7  ........D;......   

B7E305B0:  14 00 EF FF 2F 73 62 69 6E 2F 6F 73 70 66 64 00  ..../sbin/ospfd.   

B7E305C0:  14 00 EF FF 00 00 00 00 A4 3C E2 B7 AC 05 E3 B7  .........<......   

B7E305D0:  14 00 EF FF 2F 73 62 69 6E 2F 6D 73 74 70 64 00  ..../sbin/mstpd.   

B7E305E0:  14 00 EF FF 00 00 00 00 04 3E E2 B7 CC 05 E3 B7  .........>......   

B7E305F0:  14 00 EF FF 2F 73 62 69 6E 2F 6E 74 70 64 00 00  ..../sbin/ntpd..

Related commands

display process memory heap

display process memory heap size

display process memory heap size

Use display process memory heap size to display the addresses of heap memory blocks with a specified size used by a process.

Syntax

In standalone mode:

display process memory heap job job-id size memory-size [ offset offset-size ]

In IRF mode:

display process memory heap job job-id size memory-size [ offset offset-size ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

job job-id: Specifies a process by its job ID, in the range of 1 to 2147483647.

size memory-size: Specifies the memory block size in the range of 1 to 4294967295.

offset offset-size: Specifies an offset in the range of 0 to 4294967295. The default value is 128. For example, suppose the system allocates 100 16-byte memory blocks to process job 1, and the process has used 66 blocks. Then if you execute the display process memory heap job 1 size 16 offset 50 command, the output shows the addresses of the 51st through 66th 16-byte blocks used by the process.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays heap memory block address information on the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

The command displays memory block addresses in hexadecimal format. To view memory block content, execute the display process memory heap address command.

Examples

# Display the addresses of 16-byte memory blocks used by process job 1.

<Sysname> display process memory heap job 1 size 16

0xb7e300c0  0xb7e300d0  0xb7e300e0  0xb7e300f0

0xb7e30100  0xb7e30110  0xb7e30120  0xb7e30130

0xb7e30140  0xb7e30150  0xb7e30160  0xb7e30170

0xb7e30180  0xb7e30190  0xb7e301a0  0xb7e301b0

0xb7e301c0  0xb7e301d0  0xb7e301e0  0xb7e301f0

0xb7e30200  0xb7e30210  0xb7e30220  0xb7e30230

# Display the addresses of 16-byte memory blocks starting from the fifth block used by process job 1.

<Sysname> display process memory heap job 1 size 16 offset 4

0xb7e30100  0xb7e30110  0xb7e30120  0xb7e30130

0xb7e30140  0xb7e30150  0xb7e30160  0xb7e30170

0xb7e30180  0xb7e30190  0xb7e301a0  0xb7e301b0

0xb7e301c0  0xb7e301d0  0xb7e301e0  0xb7e301f0

0xb7e30200  0xb7e30210  0xb7e30220  0xb7e30230

Related commands

display process memory heap

display process memory heap address

exception filepath

Use exception filepath to specify the directory for saving core dump files.

Use undo exception filepath to remove the specified directory.

Syntax

exception filepath directory

undo exception filepath directory

Default

The directory for saving core dump files is the root directory of the default file system. For more information about the default file system, see file system management in Fundamentals Configuration Guide.

Views

User view

Predefined user roles

network-admin

Parameters

directory: Specifies the directory for saving core dump files. The directory must be the root directory of a file system.

Usage guidelines

(In standalone mode.) The system will save core dump files to the core folder in the specified directory on the device. If the core folder does not exist in the specified directory, the system creates the core folder before saving core dump files.

(In IRF mode.) The system will save core dump files to the core folder in the specified directory on the master. If the core folder does not exist in the specified directory, the system creates the core folder before saving core dump files.

You can use the command to change the directory if there are different types of storage media on the device.

If no directory is specified or the specified directory is not accessible, the system cannot save core dump files.

Examples

# Set the directory for saving core dump files.

<Sysname> exception filepath flash:/

Related commands

display exception filepath

process core

monitor kernel deadloop action threshold

Use monitor kernel deadloop action threshold to set kernel thread deadloop protection thresholds.

Use undo monitor kernel deadloop action threshold to restore default settings.

Syntax

In standalone mode:

monitor kernel deadloop action threshold threshold

undo monitor kernel deadloop action threshold

In IRF mode:

monitor kernel deadloop action threshold threshold [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel deadloop action threshold [ slot slot-number [ cpu cpu-number ] ]

Default

The kernel thread deadloop protection threshold is 1. The device takes protection actions immediately after detecting a kernel thread deadloop.

Views

System view

Predefined user roles

network-admin

Parameters

threshold: Specifies the number of kernel thread deadloops for triggering protection actions, in the range of 1 to 20.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

When the number of detected kernel thread deadloops reaches the kernel thread deadloop protection threshold, the device takes protection actions to remove the deadloops.

Examples

# Set the kernel thread deadloop protection threshold to 5.

<Sysname> system-view

[Sysname] monitor kernel deadloop action threshold 5

Related commands

display kernel deadloop configuration

monitor kernel deadloop enable

monitor kernel deadloop enable

Use monitor kernel deadloop enable to enable kernel thread deadloop detection.

Use undo monitor kernel deadloop enable to disable kernel thread deadloop detection.

Syntax

In standalone mode:

monitor kernel deadloop enable [ cpu cpu-number [ core core-number&<1-64> ] ]

undo monitor kernel deadloop enable

In IRF mode:

monitor kernel deadloop enable [ slot slot-number [ cpu cpu-number [ core core-number&<1-64> ] ] ]

undo monitor kernel deadloop enable [ slot slot-number [ cpu cpu-number ] ]

Default

Kernel thread deadloop detection is enabled.

Views

System view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

core core-number&<1-64>: Specifies a maximum of 64 cores by their numbers. If you do not specify this option, all cores on the CPU are specified.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

Kernel threads share resources in kernel space. If a kernel thread monopolizes the CPU for a long time, other threads cannot run, resulting in a deadloop.

This command enables the device to detect deadloops. If a thread occupies the CPU regularly, the device determines that a deadloop has occurred, logs the event, and reboots to resolve the issue.

Examples

# Enable kernel thread deadloop detection.

<Sysname> system-view

[Sysname] monitor kernel deadloop enable

Related commands

display kernel deadloop

display kernel deadloop configuration

monitor kernel deadloop exclude-thread

monitor kernel deadloop time

monitor kernel deadloop exclude-thread

Use monitor kernel deadloop exclude-thread to exclude a kernel thread from kernel thread deadloop detection.

Use undo monitor kernel deadloop exclude-thread to include a kernel thread in kernel thread deadloop detection.

Syntax

In standalone mode:

monitor kernel deadloop exclude-thread tid

undo monitor kernel deadloop exclude-thread [ tid ]

In IRF mode:

monitor kernel deadloop exclude-thread tid [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel deadloop exclude-thread [ tid ] [ slot slot-number [ cpu cpu-number ] ]

Default

Kernel thread deadloop detection monitors all kernel threads.

Views

System view

Predefined user roles

network-admin

Parameters

tid: Specifies a kernel thread by its ID, in the range of 1 to 2147483647. If you do not specify a kernel thread, the undo command restores the default.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

You can exclude up to 128 kernel threads from kernel thread deadloop detection.

Examples

# Exclude kernel thread 15 from kernel thread deadloop detection.

<Sysname> system-view

[Sysname]monitor kernel deadloop exclude-thread 15

Related commands

display kernel deadloop configuration

display kernel deadloop

monitor kernel deadloop enable

monitor kernel deadloop time

Use monitor kernel deadloop time to set the interval for identifying a kernel thread deadloop.

Use undo monitor kernel deadloop time to restore the default.

Syntax

In standalone mode:

monitor kernel deadloop time time

undo monitor kernel deadloop time

In IRF mode:

monitor kernel deadloop time time [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel deadloop time [ slot slot-number [ cpu cpu-number ] ]

Default

The interval for identifying a kernel thread deadloop is 20 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

time time: Specifies the interval for identifying a kernel thread deadloop, in the range of 1 to 65535 seconds.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

If a kernel thread runs for the specified interval, kernel thread deadloop detection determines that a deadloop has occurred.

Examples

# Set the interval for identifying a kernel thread deadloop to 8 seconds.

<Sysname> system-view

[Sysname] monitor kernel deadloop time 8

Related commands

display kernel deadloop configuration

display kernel deadloop

monitor kernel deadloop enable

monitor kernel starvation enable

Use monitor kernel starvation enable to enable kernel thread starvation detection.

Use undo monitor kernel starvation enable to disable kernel thread starvation detection.

Syntax

In standalone mode:

monitor kernel starvation enable

undo monitor kernel starvation enable

In IRF mode:

monitor kernel starvation enable [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel starvation enable [ slot slot-number [ cpu cpu-number ] ]

Default

Kernel thread starvation detection is disabled.

Views

System view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

Starvation occurs when a thread is unable to access shared resources.

The command enables the system to detect and report thread starvation. If a thread is not executed within an interval, the system considers that a starvation has occurred, and outputs a starvation message.

Thread starvation does not impact system operation. A starved thread can automatically run when certain conditions are met.

Examples

# Enable kernel thread starvation detection.

<Sysname> system-view

[Sysname] monitor kernel starvation enable

Related commands

display kernel starvation configuration

display kernel starvation

monitor kernel starvation time

monitor kernel starvation exclude-thread

monitor kernel starvation exclude-thread

Use monitor kernel starvation exclude-thread to exclude a kernel thread from kernel thread starvation detection.

Use undo monitor kernel starvation exclude-thread to include a kernel thread in kernel thread starvation detection.

Syntax

In standalone mode:

monitor kernel starvation exclude-thread tid

undo monitor kernel starvation exclude-thread [ tid ]

In IRF mode:

monitor kernel starvation exclude-thread tid [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel starvation exclude-thread [ tid ] [ slot slot-number [ cpu cpu-number ] ]

Default

Kernel thread starvation detection, if enabled, monitors all kernel threads.

Views

System view

Predefined user roles

network-admin

Parameters

tid: Specifies a kernel thread by its ID, in the range of 1 to 2147483647. If you do not specify a kernel thread, the undo command restores the default.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

You can exclude up to 128 kernel threads from kernel thread starvation detection.

Examples

# Exclude kernel thread 15 from kernel thread starvation detection.

<Sysname> system-view

[Sysname] monitor kernel starvation exclude-thread 15

Related commands

display kernel starvation

display kernel starvation configuration

monitor kernel starvation enable

monitor kernel starvation time

Use monitor kernel starvation time to set the interval for identifying a kernel thread starvation.

Use undo monitor kernel starvation time to restore the default.

Syntax

In standalone mode:

monitor kernel starvation time time

undo monitor kernel starvation time

In IRF mode:

monitor kernel starvation time time [ slot slot-number [ cpu cpu-number ] ]

undo monitor kernel starvation time [ slot slot-number [ cpu cpu-number ] ]

Default

The interval for identifying a kernel thread starvation is 120 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

time time: Specifies the interval for identifying a kernel thread starvation, in the range of 1 to 65535 seconds.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

Use this command only under the guidance of H3C Support. Inappropriate configuration can cause system breakdown. As a best practice, leave the default unchanged.

If a thread is not executed within the specified interval, the system considers that a starvation has occurred, and outputs a starvation message.

Examples

# Set the interval for identifying a kernel thread starvation to 120 seconds.

<Sysname> system-view

[Sysname] monitor kernel starvation time 120

Related commands

display kernel starvation

display kernel starvation configuration

monitor kernel starvation enable

monitor process

Use monitor process to display process statistics.

Syntax

In standalone mode:

monitor process [ dumbtty ] [ iteration number ]

In IRF mode:

monitor process [ dumbtty ] [ iteration number ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

dumbtty: Specifies dumbtty mode. In this mode, the command displays process statistics in descending order of CPU usage without refreshing statistics. If you do not specify this keyword, the command displays statistics for the top 10 processes in descending order of CPU usage in an interactive mode, and refreshes statistics every 5 seconds by default.

iteration number: Specifies the number of display times, in the range of 1 to 4294967295. If you specify the dumbtty keyword, the number argument is 1 by default. If neither the dumbtty keyword nor the number argument is specified, there is no limit to the display times and process statistics are refreshed every 5 seconds.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays process statistics for the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

If you do not specify the dumbtty keyword, the command displays process statistics in an interactive mode. In this mode, the system automatically determines the number of displayed processes according to the screen size, and does not display exceeding processes. You can also input interactive commands as shown in Table 11 to perform relevant operations.

Table 11 Interactive commands

Commands

Description

? or h

Displays help information that includes available interactive commands.

1

Displays state information for physical CPUs. For example, if you enter 1 for the first time, the state of each physical CPU is displayed in a separate row. If you enter 1 again, the average value of all CPU states is displayed. If you enter 1 for the third time, separate states are displayed.

By default, the average value of all CPU states is displayed.

c

Sorts processes by CPU usage in descending order, which is the default setting.

d

Sets the interval for refreshing process statistics, in the range of 1 to 2147483647 seconds. The default value is 5 seconds.

f

Sorts processes by the number of open files in descending order. Files are identified by file descriptors (FDs).

k

Kills a process. Because the command can impact system operation, be cautious to use it.

l

Refreshes the screen.

m

Sorts processes by memory usage in descending order.

n

Changes the maximum number of processes displayed within a screen, in the range of 0 to 2147483647. The default value is 10. A value of 0 means no limit. Only processes not exceeding the screen size can be displayed.

q

Quits the interactive mode.

t

Sorts processes by running time in descending order.

Moves sort field to the next left column.

Moves sort field to the next right column.

Examples

# Display process statistics in dumbtty mode. In this mode, the system displays process statistics once, and then returns to command view.

<Sysname> monitor process dumbtty

428 processes; 561 threads; 2336 fds                                           

Thread states: 18 running, 543 sleeping, 0 stopped, 0 zombie                   

CPU0: 89.53% idle, 0.00% user, 7.14% kernel, 3.33% interrupt, 0.00% steal      

CPU1: 94.81% idle, 0.47% user, 2.36% kernel, 2.36% interrupt, 0.00% steal      

Memory: 31775M total, 26159M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        404        404  120    S    16  16432K  03:22:57   0.68%  diagd        

          1          1  120    S    18  11136K  00:08:21   0.27%  scmd         

        348        348  115    R     0      0K  05:54:40   0.15%  [kdrvfwd20]  

        349        349  115    R     0      0K  05:57:55   0.14%  [kdrvfwd21]  

        350        350  115    R     0      0K  05:52:45   0.14%  [kdrvfwd22]  

        352        352  115    R     0      0K  05:47:38   0.14%  [kdrvfwd24]  

        354        354  115    R     0      0K  05:38:52   0.14%  [kdrvfwd26]  

        344        344  115    R     0      0K  05:41:15   0.13%  [kdrvfwd16]  

        345        345  115    R     0      0K  05:34:40   0.13%  [kdrvfwd17]  

        346        346  115    R     0      0K  05:33:35   0.13%  [kdrvfwd18]  

        347        347  115    R     0      0K  05:22:29   0.13%  [kdrvfwd19]  

        351        351  115    R     0      0K  05:39:24   0.13%  [kdrvfwd23]  

        353        353  115    R     0      0K  05:29:42   0.13%  [kdrvfwd25]  

        355        355  115    R     0      0K  05:26:17   0.13%  [kdrvfwd27]  

        356        356  115    R     0      0K  05:28:52   0.13%  [kdrvfwd28]  

        357        357  115    R     0      0K  05:26:31   0.13%  [kdrvfwd29]  

...

# Display process statistics twice in dumbtty mode.

<Sysname> monitor process dumbtty iteration 2

428 processes; 561 threads; 2336 fds                                           

Thread states: 18 running, 543 sleeping, 0 stopped, 0 zombie                   

CPU0: 89.53% idle, 0.00% user, 7.14% kernel, 3.33% interrupt, 0.00% steal      

CPU1: 94.81% idle, 0.47% user, 2.36% kernel, 2.36% interrupt, 0.00% steal      

Memory: 31775M total, 26159M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        404        404  120    S    16  16432K  03:22:57   0.68%  diagd        

          1          1  120    S    18  11136K  00:08:21   0.27%  scmd         

        348        348  115    R     0      0K  05:54:40   0.15%  [kdrvfwd20]  

        349        349  115    R     0      0K  05:57:55   0.14%  [kdrvfwd21]  

        350        350  115    R     0      0K  05:52:45   0.14%  [kdrvfwd22]  

        352        352  115    R     0      0K  05:47:38   0.14%  [kdrvfwd24]  

        354        354  115    R     0      0K  05:38:52   0.14%  [kdrvfwd26]  

        344        344  115    R     0      0K  05:41:15   0.13%  [kdrvfwd16]  

        345        345  115    R     0      0K  05:34:40   0.13%  [kdrvfwd17]  

        346        346  115    R     0      0K  05:33:35   0.13%  [kdrvfwd18]  

        347        347  115    R     0      0K  05:22:29   0.13%  [kdrvfwd19]  

        351        351  115    R     0      0K  05:39:24   0.13%  [kdrvfwd23]  

        353        353  115    R     0      0K  05:29:42   0.13%  [kdrvfwd25]  

        355        355  115    R     0      0K  05:26:17   0.13%  [kdrvfwd27]  

        356        356  115    R     0      0K  05:28:52   0.13%  [kdrvfwd28]  

        357        357  115    R     0      0K  05:26:31   0.13%  [kdrvfwd29]  

...

Five seconds later, the system refreshes process statistics as follows (which is the same as executing the monitor process dumbtty command twice at a 5-second interval):

428 processes; 561 threads; 2338 fds                                            

Thread states: 19 running, 542 sleeping, 0 stopped, 0 zombie                   

CPU0: 86.26% idle, 1.05% user, 8.99% kernel, 3.70% interrupt, 0.00% steal      

CPU1: 90.44% idle, 1.06% user, 4.78% kernel, 3.72% interrupt, 0.00% steal      

Memory: 31775M total, 26158M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        404        404  120    R    18  16460K  03:23:03   0.50%  diagd        

          1          1  120    S    18  11136K  00:08:21   0.24%  scmd         

        344        344  115    R     0      0K  05:41:25   0.13%  [kdrvfwd16]  

        348        348  115    R     0      0K  05:54:51   0.13%  [kdrvfwd20]   

        349        349  115    R     0      0K  05:58:06   0.13%  [kdrvfwd21]  

        350        350  115    R     0      0K  05:52:56   0.13%  [kdrvfwd22]  

        352        352  115    R     0      0K  05:47:49   0.13%  [kdrvfwd24]  

        345        345  115    R     0      0K  05:34:51   0.12%  [kdrvfwd17]  

        346        346  115    R     0      0K  05:33:45   0.12%  [kdrvfwd18]  

        347        347  115    R     0      0K  05:22:39   0.12%  [kdrvfwd19]  

        351        351  115    R     0      0K  05:39:34   0.12%  [kdrvfwd23]  

        353        353  115    R     0      0K  05:29:52   0.12%  [kdrvfwd25]  

        354        354  115    R     0      0K  05:39:02   0.12%  [kdrvfwd26]  

        356        356  115    R     0      0K  05:29:02   0.12%  [kdrvfwd28]  

        357        357  115    R     0      0K  05:26:41   0.12%  [kdrvfwd29]  

...

<Sysname>

# Display process statistics in interactive mode.

<Sysname> monitor process

428 processes; 561 threads; 2336 fds                                           

Thread states: 20 running, 541 sleeping, 0 stopped, 0 zombie                   

CPU: 98.21% idle, 0.17% user, 1.57% kernel, 0.05% interrupt, 0.00% steal       

Memory: 31775M total, 26158M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        348        348  115    R     0      0K  05:55:08   0.09%  [kdrvfwd20]  

        349        349  115    R     0      0K  05:58:22   0.09%  [kdrvfwd21]  

        350        350  115    R     0      0K  05:53:12   0.09%  [kdrvfwd22]  

        352        352  115    R     0      0K  05:48:05   0.09%  [kdrvfwd24]  

        344        344  115    R     0      0K  05:41:41   0.09%  [kdrvfwd16]  

        351        351  115    R     0      0K  05:39:50   0.09%  [kdrvfwd23]  

        404        404  120    S    16  16468K  03:23:12   0.09%  diagd        

        353        353  115    R     0      0K  05:30:07   0.09%  [kdrvfwd25]  

        354        354  115    R     0      0K  05:39:18   0.09%  [kdrvfwd26]  

        345        345  115    R     0      0K  05:35:07   0.08%  [kdrvfwd17]  

The system refreshes process statistics every 5 seconds. You can enter interactive commands to perform operation as follows:

·     Enter h or a question mark (?) to display help information as follows:

Help for interactive commands:

      ?,h    Show the available interactive commands

        1    Toggle SMP view: '1' single/separate states

        c    Sort by the CPU field(default)

        d    Set the delay interval between screen updates

        f    Sort by number of open files

        k    Kill a job

        l    Refresh the screen

        m    Sort by memory used

        n    Set the maximum number of processes to display

        q    Quit the interactive display

        t    Sort by run time of processes since last restart

        <    Move sort field to the next left column

        >    Move sort field to the next right column

Press any key to continue

·     Enter d, and then enter a number to modify the refresh interval. If you enter 3, statistics are refreshed every 3 seconds.

Enter the delay interval between updates(1~2147483647): 3

·     Enter n, and then enter a number to modify the maximum number of displayed processes. If you enter 5, statistics for five processes are displayed.

Enter the max number of processes to display(0 means unlimited): 5

428 processes; 561 threads; 2336 fds                                           

Thread states: 18 running, 543 sleeping, 0 stopped, 0 zombie                   

CPU: 97.24% idle, 0.28% user, 2.41% kernel, 0.07% interrupt, 0.00% steal       

Memory: 31775M total, 26158M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        349        349  115    R     0      0K  05:59:31   0.14%  [kdrvfwd21]  

        348        348  115    R     0      0K  05:56:16   0.14%  [kdrvfwd20]  

        350        350  115    R     0      0K  05:54:20   0.14%  [kdrvfwd22]  

        352        352  115    R     0      0K  05:49:12   0.14%  [kdrvfwd24]  

        404        404  120    S    16  16480K  03:24:25   0.14%  diagd    

·     Enter f to sort processes by FDs in descending order. (You can also enter command c, m, or t to sort processes.)

428 processes; 561 threads; 2336 fds                                           

Thread states: 18 running, 543 sleeping, 0 stopped, 0 zombie                   

CPU: 97.39% idle, 0.19% user, 2.04% kernel, 0.38% interrupt, 0.00% steal       

Memory: 31775M total, 26158M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        526        526  120    S   360  64180K  00:25:14   0.01%  stamgrd      

        426        426  120    S   329 167272K  04:50:26   0.11%  apmgrd       

        398        398  100    S   181  52472K  00:00:59   0.00%  dbmd         

        424        424  120    S   123 298916K  00:08:37   0.00%  ofcd         

        601        601  125    S    87  25108K  00:00:12   0.00%  ipstackd     

        620        620  120    S    84  54176K  00:01:42   0.00%  portald      

        430        430  120    S    64  18340K  00:00:21   0.00%  aaad          

        406        406  105    S    55   2192K  00:00:00   0.00%  had          

        436        436  120    S    47  29212K  00:00:06   0.00%  aclmgrd      

        600        600  125    S    41  30320K  00:01:54   0.00%  dhcpd      

·     Enter k and then enter a JID to kill a process. If you enter 406, the process with the JID of 406 is killed.

Enter the JID to kill: 406

427 processes; 560 threads; 2280 fds                                           

Thread states: 18 running, 542 sleeping, 0 stopped, 0 zombie                   

CPU: 97.11% idle, 0.34% user, 2.46% kernel, 0.09% interrupt, 0.00% steal       

Memory: 31775M total, 26158M available, page size 4K                           

        JID        PID  PRI  State  FDs    MEM  HH:MM:SS    CPU   Name         

        526        526  120    S   360  64180K  00:25:14   0.03%  stamgrd      

        426        426  120    S   329 167272K  04:50:31   0.13%  apmgrd       

        398        398  100    S   180  52472K  00:00:59   0.00%  dbmd          

        424        424  120    S   123 298916K  00:08:37   0.00%  ofcd         

        601        601  125    S    87  25108K  00:00:12   0.00%  ipstackd     

        620        620  120    S    84  54176K  00:01:42   0.00%  portald      

        430        430  120    S    64  18340K  00:00:21   0.00%  aaad         

        436        436  120    S    47  29212K  00:00:06   0.00%  aclmgrd      

        600        600  125    S    41  30320K  00:01:54   0.00%  dhcpd        

        505        505  120    S    40  28196K  00:00:00   0.00%  qosd   

·     Enter q to quit interactive mode.

Table 12 Command output

Field

Description

84 processes; 107 threads; 683 fds

Numbers of processes, threads, and open files.

JID

Job ID of a process, which never changes.

PID

ID of a process.

PRI

Priority level of a process.

State

State of a process:

·     R—Running.

·     S—Sleeping.

·     T—Traced or stopped.

·     D—Uninterruptible sleep.

·     Z—Zombie.

FDs

Number of open files for a process.

MEM

Memory usage. It displays 0 for a kernel thread.

HH:MM:SS

Running time of a process since last restart.

CPU

CPU usage of a process.

Name

Name of a process. If square brackets ([ ]) exist in a process name, the process is a kernel thread.

monitor thread

Use monitor thread to display thread statistics.

Syntax

In standalone mode:

monitor thread [ dumbtty ] [ iteration number ]

In IRF mode:

monitor thread [ dumbtty ] [ iteration number ] [ slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

Parameters

dumbtty: Specifies dumbtty mode. In this mode, the command displays all thread statistics in descending order of CPU usage without refreshing statistics. If you do not specify the keyword, the command displays statistics for top 10 processes in descending order of CPU usage in an interactive mode, and refreshes statistics every 5 seconds by default.

iteration number: Specifies the number of display times, in the range of 1 to 4294967295. If you specify the dumbtty keyword, the number argument is 1 by default. If neither the dumbtty keyword nor the number argument is specified, there is no limit to the display times.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command displays thread statistics for the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

If you do not specify the dumbtty keyword, the command displays thread statistics in an interactive mode. In this mode, the system automatically determines the number of displayed thread processes according to the screen size and does not display exceeding processes. You can also input interactive commands as shown in Table 13 to perform relevant operations.

Table 13 Interactive commands

Commands

Description

? or h

Displays help information that includes available interactive commands.

1

Displays one of the following items in turn when you press 1 again and again:

·     Values of parameters of physical CPUs.

·     Average values of parameters of all CPUs.

By default, the command displays the average values of parameters of all CPUs.

c

Sorts statistics by CPU usage in descending order. By default, the command sorts statistics by CPU usage in descending order.

d

Sets the interval for refreshing statistics. The default interval is 5 seconds.

k

Kills a process. Because the command can impact system operation, be cautious when you use it.

l

Refreshes the screen.

n

Changes the maximum number of threads displayed within a screen, in the range of 0 to 2147483647. The default value is 10. A value of 0 means no limit. Only threads not exceeding the screen size can be displayed.

q

Quits interactive mode.

t

Sorts statistics by the running time since the latest startup.

Moves sort field to the next left column.

Moves sort field to the next right column.

Examples

# Display thread statistics in dumbtty mode.

<Sysname> monitor thread dumbtty

84 processes; 107 threads

Thread states: 1 running, 106 sleeping, 0 stopped, 0 zombie

CPU states: 83.19% idle, 1.68% user, 10.08% kernel, 5.04% interrupt

Memory: 755M total, 417M available, page size 4K

    JID    TID  LAST_CPU  PRI  State  HH:MM:SS   MAX    CPU    Name

   1175   1175      0     120    R    00:00:00     1  10.75%   top

      1      1      0     120    S    00:00:06     1   2.68%   scmd

    881    881      0     120    S    00:00:09     1   2.01%   diagd

    776    776      0     120    S    00:00:01     0   0.67%   [DEVD]

    866    866      0     120    S    00:00:11     1   0.67%   devd

      2      2      0     115    S    00:00:00     0   0.00%   [kthreadd]

      3      3      0     115    S    00:00:01     0   0.00%   [ksoftirqd/0]

      4      4      0      99    S    00:00:00     1   0.00%   [watchdog/0]

      5      5      0     115    S    00:00:00     0   0.00%   [events/0]

      6      6      0     115    S    00:00:00     0   0.00%   [khelper]

    796    796      0     115    S    00:00:00     0   0.00%   [kip6fs/1]

 

<Sysname>

# Display thread statistics in interactive mode.

<Sysname> monitor thread

84 processes; 107 threads

Thread states: 1 running, 106 sleeping, 0 stopped, 0 zombie

CPU states: 94.43% idle, 0.76% user, 3.64% kernel, 1.15% interrupt

Memory: 755M total, 417M available, page size 4K

    JID    TID  LAST_CPU  PRI  State  HH:MM:SS   MAX    CPU    Name

   1176   1176      0     120    R    00:00:01     1   3.42%   top

    866    866      0     120    S    00:00:12     1   0.85%   devd

    881    881      0     120    S    00:00:09     1   0.64%   diagd

      1      1      0     120    S    00:00:06     1   0.42%   scmd

   1160   1160      0     120    S    00:00:01     1   0.21%   sshd

      2      2      0     115    S    00:00:00     0   0.00%   [kthreadd]

      3      3      0     115    S    00:00:01     0   0.00%   [ksoftirqd/0]

      4      4      0      99    S    00:00:00     1   0.00%   [watchdog/0]

      5      5      0     115    S    00:00:00     0   0.00%   [events/0]

      6      6      0     115    S    00:00:00     0   0.00%   [khelper]

·     Enter h or a question mark (?) to display help information as follows:

Help for interactive commands:

        ?,h      Show the available interactive commands

          1      Toggle SMP view: '1' single/separate states

          c      Sort by the CPU field(default)

          d      Set the delay interval between screen updates

          k      Kill a job

          l      Refresh the screen

          n      Set the maximum number of threads to display

          q      Quit the interactive display

          t      Sort by run time of threads since last restart

          <      Move sort field to the next left column

          >      Move sort field to the next right column

Press any key to continue

·     Enter d, and then enter a number to modify the refresh interval. If you enter 3, statistics are refreshed every 3 seconds.

Enter the delay interval between screen updates (1~2147483647): 3

·     Enter n, and then enter a number to modify the maximum number of displayed threads. If you enter 5, statistics for five threads are displayed.

Enter the max number of threads to display(0 means unlimited): 5

84 processes; 107 threads

Thread states: 1 running, 106 sleeping, 0 stopped, 0 zombie

CPU states: 93.26% idle, 0.99% user, 4.23% kernel, 1.49% interrupt

Memory: 755M total, 417M available, page size 4K

    JID    TID  LAST_CPU  PRI  State  HH:MM:SS   MAX    CPU    Name

   1176   1176      0     120    R    00:00:02     1   3.71%   top

      1      1      0     120    S    00:00:06     1   0.92%   scmd

    866    866      0     120    S    00:00:13     1   0.69%   devd

    881    881      0     120    S    00:00:10     1   0.69%   diagd

    720    720      0     115    D    00:00:01     0   0.23%   [TMTH]

·     Enter k and then enter a JID to kill a thread. If you enter 881, the thread with the JID of 881 is killed.

Enter the JID to kill: 881

83 processes; 106 threads

Thread states: 1 running, 105 sleeping, 0 stopped, 0 zombie

CPU states: 96.26% idle, 0.54% user, 2.63% kernel, 0.54% interrupt

Memory: 755M total, 418M available, page size 4K

    JID    TID  LAST_CPU  PRI  State  HH:MM:SS   MAX    CPU    Name

   1176   1176      0     120    R    00:00:04     1   1.86%   top

    866    866      0     120    S    00:00:14     1   0.87%   devd

      1      1      0     120    S    00:00:07     1   0.49%   scmd

    730    730      0       0    S    00:00:04     1   0.12%   [DIBC]

    762    762      0     120    S    00:00:22     1   0.12%   [MNET]

·     Enter q to quit interactive mode.

Table 14 Command output

Field

Description

84 processes; 107 threads

Numbers of processes and threads.

JID

Job ID of a thread, which never changes.

TID

ID of a thread.

LAST_CPU

Number of the CPU on which the most recent thread scheduling occurs.

PRI

Priority level of a thread.

State

State of a thread:

·     R—Running.

·     S—Sleeping.

·     T—Traced or stopped.

·     D—Uninterruptible sleep.

·     Z—Zombie.

HH:MM:SS

Running time of a thread since last restart.

MAX

Longest time that a single thread scheduling occupies the CPU, in milliseconds.

CPU

CPU usage of a thread.

Name

Name of a thread. If square brackets ([ ]) exist in a thread name, the thread is a kernel thread.

 

process core

Use process core to enable or disable a process to generate core dump files for exceptions and set the maximum number of core dump files.

Syntax

In standalone mode:

process core { maxcore value | off } { job job-id | name process-name }

In IRF mode:

process core { maxcore value | off } { job job-id | name process-name } [ slot slot-number [ cpu cpu-number ] ]

Views

User view

Default

A process generates a core dump file for the first exception and does not generate any core dump files for subsequent exceptions.

Predefined user roles

network-admin

Parameters

off: Disables core dump file generation.

maxcore value: Enables core dump file generation and sets the maximum number of core dump files, in the range of 1 to 10.

name process-name: Specifies a process by its name, a case-insensitive string of 1 to 15 characters.

job job-id: Specifies a process by its job ID, in the range of 1 to 2147483647. The job ID does not change after the process restarts.

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command applies to the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Usage guidelines

The command applies to all instances of a process.

The command enables the system to generate a core dump file each time the specified process crashes until the maximum number of core dump files is reached. A core dump file records the exception information.

Because core dump files consume system storage resources, you can disable core dump file generation for processes for which you do not need to review exception information.

Examples

# Disable core dump file generation for process routed.

<Sysname> process core off name routed

# Enable core dump file generation for process routed and set the maximum number of core dump files to 5.

<Sysname> process core maxcore 5 name routed

Related commands

display exception context

exception filepath

reset exception context

Use reset exception context to clear context information for process exceptions.

Syntax

In standalone mode:

reset exception context

In IRF mode:

reset exception context [ slot slot-number [ cpu cpu-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command clears context information for process exceptions on the IRF master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Clear context information for exceptions.

<Sysname> reset exception context

Related commands

display exception context

reset kernel deadloop

Use reset kernel deadloop to clear kernel thread deadloop information.

Syntax

In standalone mode:

reset kernel deadloop

In IRF mode:

reset kernel deadloop [ slot slot-number [ cpu cpu-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command clears kernel thread deadloop information for the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Clear kernel thread deadloop information.

<Sysname> reset kernel deadloop

Related commands

display kernel deadloop

reset kernel exception

Use reset kernel exception to clear kernel thread exception information.

Syntax

In standalone mode:

reset kernel exception

In IRF mode:

reset kernel exception [ slot slot-number [ cpu cpu-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an IRF member device by its member ID. If you do not specify a member device, this command clears kernel thread exception information for the master device. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number.

Examples

# Clear kernel thread exception information.

<Sysname> reset kernel exception

Related commands

display kernel exception

 

  • Cloud & AI
  • InterConnect
  • Intelligent Computing
  • Security
  • SMB Products
  • Intelligent Terminal Products
  • Product Support Services
  • Technical Service Solutions
All Services
  • Resource Center
  • Policy
  • Online Help
All Support
  • Become a Partner
  • Partner Resources
  • Partner Business Management
All Partners
  • Profile
  • News & Events
  • Online Exhibition Center
  • Contact Us
All About Us
新华三官网