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 for process exceptions.

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-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 MPU by its slot number. If you do not specify this option, the command displays context information for process exceptions on the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays context information for process exceptions on the global active MPU. (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 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 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 file directory.

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command displays the core file directory on the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays the core file directory on the global active MPU. (In IRF mode.)

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

Examples

# (In standalone mode.) Display the core 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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

show-number: Specifies the number of deadloops to display, in the range of 1 to 60.

offset: Specifies the offset between the starting deadloop and the most recent deadloop, in the range of 0 to 59. 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 MPU by its slot number. If you do not specify this option, the command displays kernel thread deadloop information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays kernel thread deadloop information for the global active MPU. (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 : 1

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 : 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)

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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command displays kernel thread deadloop detection configuration for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays kernel thread deadloop detection configuration for the global active MPU. (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

Dead loop core list: 0-1

Dead loop action: Record-only

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.
Dead loop core list	CPU cores for which kernel thread deadloop detection is performed.
Dead loop action	Action to be taken in response to a kernel thread deadloop: · Reboot—Logs the event and reboots the hardware. · Record-only—Logs the event.
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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

show-number: Specifies the number of kernel exceptions to display, in the range of 1 to 60.

offset: Specifies the offset between the starting exception and the most recent exception, in the range of 0 to 59. 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 MPU by its slot number. If you do not specify this option, the command displays kernel thread exception information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays kernel thread exception information for the global active MPU. (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 : 1

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 : 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)

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 reboot

Use display kernel reboot to display reboot information for cards.

Syntax

In standalone mode:

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

In IRF mode:

display kernel reboot show-number [ offset ] [ verbose ] [ chassis chassis-number slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

show-number: Specifies the number of reboots to display, in the range of 1 to 60.

offset: Specifies the offset between the starting reboot and the most recent reboot, in the range of 0 to 59. 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 MPU by its slot number. If you do not specify this option, the command displays reboot information for the active MPU. Reboot information for cards is recorded in the memory of the active MPU. If the active MPU is powered off, the reboot information is lost. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays reboot information for the global active MPU. Reboot information for cards on an IRF member device is recorded in the memory of the active MPU on the IRF member device. If the active MPU is powered off, the reboot information is lost. (In IRF mode.)

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

Examples

# (In standalone mode.) Display brief information about the most recent reboot.

<Sysname> display kernel reboot 1

----------------- Reboot record 1 -----------------

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

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

Reason : 0x31

Thread : comsh (TID: 16306)

Context : thread context

Slot : 1

Target Slot : 0

Cpu : 0

VCPU ID : 0

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

module name (12500) module address (0xe00bd000)

# (In standalone mode.) Display detailed information about the most recent reboot.

<Sysname> display kernel reboot 1 verbose

----------------- Reboot record 1 -----------------

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

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

Reason : 0x31

Thread : comsh (TID: 16306)

Context : thread context

Slot : 1

Target 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)

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

Table 4 Command output

Field	Description
Recorded at	Time when the reboot was recorded, with microsecond precision.
Occurred at	Time when the reboot occurred, with microsecond precision.
Reason	Reboot reason.
Thread	Name and number of the kernel thread that was running when the reboot occurred.
Context	Context where the reboot occurred.
Chassis	(In IRF mode.) Number of the IRF member device that triggered the reboot.
Target Chassis	(In IRF mode.) Member ID of the rebooted IRF member device.
Slot	Number of the slot that triggered the reboot.
Target Slot	Number of the rebooted slot.
Cpu	Number of the CPU that triggered the reboot.
VCPU ID	Number of the CPU core that triggered the reboot.
Kernel module info	Information about kernel modules that had been loaded when the reboot occurred, including the kernel module names and memory addresses.
Last 5 thread switches	Last five kernel thread switches that occurred on the CPU before the reboot, including the kernel thread names and kernel thread switching time points, with microsecond precision.
Dump stack	Stack information for the threads that were running when the reboot occurred.
Call trace	Function call stack information.
No information to display	No reboot information exists.

‌

Related commands

reset kernel reboot

display kernel starvation

Use display kernel starvation to display kernel thread starvation information.

Syntax

In standalone mode:

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

In IRF mode:

display kernel starvation show-number [ offset ] [ verbose ] [ chassis chassis-number slot slot-number [ cpu cpu-number ] ]

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

show-number: Specifies the number of thread starvations to display, in the range of 1 to 60.

offset: Specifies the offset between the starting starvation and the most recent starvation, in the range of 0 to 59. 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 MPU by its slot number. If you do not specify this option, the command displays kernel thread starvation information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command displays kernel thread starvation information for the global active MPU. (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 starvation.

<Sysname> display kernel starvation 1

----------------- Starvation record 1 -----------------

Description : INFO: task comsh: 16306 blocked for more than 10 seconds.

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)

module name (12500) module address (0xe00bd000)

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

<Sysname> display kernel starvation 1 verbose

----------------- Starvation record 1 -----------------

Description : INFO: task comsh: 16306 blocked for more than 10 seconds.

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)

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)

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 detailed information about the command output, see Table 2.

Related commands

reset kernel starvation

display kernel starvation configuration

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

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command displays kernel thread starvation detection configuration on the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the command displays kernel thread starvation detection configuration for the global active MPU. (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 5 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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-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 a card by its slot number. If you do not specify this option, the command displays process state information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays information for the global active MPU. (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 6 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 files that the process can create. 0 indicates that the process never creates a core file. A process creates a core file after it abnormally restarts. If the number of core files reaches the maximum value, no more core files are created. Core 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 - 00:00:59 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 - 00:00:00 [ksoftirqd/0]

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

6 6 0.0 0.0 S 99 - 00:00:00 [migration/1]

7 7 0.0 0.0 S 115 - 00:00:00 [ksoftirqd/1]

8 8 0.0 0.0 S 99 - 00:00:00 [watchdog/1]

9 9 0.0 0.0 S 99 - 00:00:00 [migration/2]

10 10 0.0 0.0 S 115 - 00:00:00 [ksoftirqd/2]

11 11 0.0 0.0 S 99 - 00:00:00 [watchdog/2]

12 12 0.0 0.0 S 99 - 00:00:00 [migration/3]

13 13 0.0 0.0 S 115 - 00:00:00 [ksoftirqd/3]

---- More ----

Table 7 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. It displays a hyphen (-) for non-default MDCs.
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 for all processes.

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command displays CPU usage for all processes on the active MPU. (In standalone 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 8 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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command displays CPU usage for all processes on the active MPU. (In standalone 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 9 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 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.

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display process memory

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

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command displays memory usage for all user processes on the active MPU. (In standalone 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 10 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.

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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 heap memory usage for a user process.

Syntax

In standalone mode:

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

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-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 a card by its slot number. If you do not specify this option, the command displays heap memory usage for the user process on the active MPU.(In standalone 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 11 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.

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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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-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 a card by its slot number. If you do not specify this option, the command displays memory content information on the active MPU.(In standalone 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

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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-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 a card by its slot number. If you do not specify this option, the command displays block address information on the active MPU. (In standalone 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 files.

Use undo exception filepath to remove the specified directory.

Syntax

exception filepath directory

undo exception filepath directory

Default

The directory for saving core files is flash:/.

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

directory: Specifies the directory for saving core files.

Usage guidelines

(In standalone mode.) The specified directory must be the root directory of a file system on the active MPU.

(In IRF mode.) The specified directory must be the root directory of a file system on the global active MPU.

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

The system saves core files to the core directory in the specified directory. If the core directory does not exist in the specified directory, the system creates the core directory before saving core files.

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

Examples

# Set the directory for saving core files to flash:/.

<Sysname> exception filepath flash:/

Related commands

display exception filepath

process core

monitor kernel deadloop action

Use monitor kernel deadloop action to specify the action to be taken in response to a kernel thread deadloop.

Use undo monitor kernel deadloop action to restore the default.

Syntax

In standalone mode:

monitor kernel deadloop action { reboot | record-only } [ slot slot-number [ cpu cpu-number ] ]

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

In IRF mode:

monitor kernel deadloop action { reboot | record-only } [ chassis chassis-number slot slot-number [ cpu cpu-number ] ]

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

Default

Kernel thread deadloop protection action is record-only.

Views

System view

Predefined user roles

network-admin

Parameters

reboot: Logs the event and reboots the specified slot or CPU.

record-only: Logs the event.

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command specifies the action for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command specifies the action for the global active MPU. (In IRF mode.)

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

Usage guidelines

Inappropriate use of the command can cause service problems or system breakdown. A good practice is not to use this command. If you still want to use this command, make sure you understand the impact of the command on your network before you use it.

Examples

# Set the kernel thread deadloop protection action to reboot for slot 1. (In standalone mode.)

<Sysname> system-view

[Sysname] monitor kernel deadloop action reboot slot 1

Related commands

display kernel deadloop configuration

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 [ slot slot-number [ cpu cpu-number [ core core-number&<1-64> ] ] ]

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

In IRF mode:

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

undo monitor kernel deadloop enable [ chassis chassis-number 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 a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

core core-number&<1-64> ]: Specifies a maximum of 64 CPU cores. If you do not specify this option, the command applies to all cores of the specified CPU.

Usage guidelines

CAUTION:

Change kernel thread deadloop detection settings only under the guidance of H3C technical support staff. 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 considers that a deadloop has occurred.

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 action

monitor kernel deadloop exclude-thread

monitor kernel deadloop time

monitor kernel deadloop exclude-thread

Use monitor kernel deadloop exclude-thread to disable kernel thread deadloop detection for a kernel thread.

Use undo monitor kernel deadloop exclude-thread to enable kernel thread deadloop detection for a kernel thread.

Syntax

In standalone 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 ] ]

In IRF mode:

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

undo monitor kernel deadloop exclude-thread [ tid ] [ chassis chassis-number 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 no kernel thread is specified for the undo command, the default is restored.

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

Usage guidelines

Inappropriate use of the command can cause service problems or system breakdown. Make sure you understand the impact of the command on your network before you use it.

You can disable kernel thread deadloop detection for up to 128 kernel threads by executing the command.

Examples

# Disable kernel thread deadloop detection for kernel thread 15.

<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 [ slot slot-number [ cpu cpu-number ] ]

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

In IRF mode:

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

undo monitor kernel deadloop time [ chassis chassis-number 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 a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

Usage guidelines

Inappropriate use of the command can cause service problems or system breakdown. Make sure you understand the impact of the command on your network before you use it.

If a kernel thread runs for the specified interval, kernel thread deadloop detection considers 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 [ slot slot-number [ cpu cpu-number ] ]

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

In IRF mode:

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

undo monitor kernel starvation enable [ chassis chassis-number 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 a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

Usage guidelines

CAUTION:

Configure kernel thread starvation detection only under the guidance of H3C technical support staff. 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

Use monitor kernel starvation exclude-thread to disable kernel thread starvation detection for a kernel thread.

Use undo monitor kernel starvation exclude-thread to enable kernel thread starvation detection for a kernel thread.

Syntax

In standalone 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 ] ]

In IRF mode:

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

undo monitor kernel starvation exclude-thread [ tid ] [ chassis chassis-number 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 no kernel thread is specified for the undo command, the default is restored.

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

Usage guidelines

Inappropriate use of the command can cause service problems or system breakdown. Make sure you understand the impact of the command on your network before you use it.

You can disable kernel thread starvation detection for up to 128 kernel threads by executing the command.

Examples

# Disable kernel thread starvation detection for kernel thread 15.

<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 [ slot slot-number [ cpu cpu-number ] ]

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

In IRF mode:

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

undo monitor kernel starvation time [ chassis chassis-number 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 a card by its slot number. If you do not specify this option, the active MPU is specified. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the global active MPU is specified. (In IRF mode.)

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

Usage guidelines

Inappropriate use of the command can cause service problems or system breakdown. Make sure you understand the impact of the command on your network before you use it.

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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-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 a card by its slot number. If you do not specify this option, the command displays process statistics for the active MPU.(In standalone 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 12 to perform relevant operations.

Table 12 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.

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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

76 processes; 103 threads; 687 fds

Thread states: 1 running, 102 sleeping, 0 stopped, 0 zombie

CPU states: 77.16% idle, 0.00% user, 14.96% kernel, 7.87% interrupt

Memory: 496M total, 341M available, page size 4K

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

1047 1047 120 R 9 1420K 00:02:23 13.53% diagd

1 1 120 S 17 1092K 00:00:20 7.61% scmd

1000 1000 115 S 0 0K 00:00:09 0.84% [sock/1]

1026 1026 120 S 20 26044K 00:00:05 0.84% syslogd

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

3 3 99 S 0 0K 00:00:00 0.00% [migration/0]

4 4 115 S 0 0K 00:00:06 0.00% [ksoftirqd/0]

5 5 99 S 0 0K 00:00:00 0.00% [watchdog/0]

6 6 115 S 0 0K 00:00:01 0.00% [events/0]

7 7 115 S 0 0K 00:00:00 0.00% [khelper]

4797 4797 120 S 8 28832K 00:00:02 0.00% comsh

5117 5117 120 S 8 1496K 00:00:00 0.00% top

# Display process statistics twice in dumbtty mode.

<Sysname> monitor process dumbtty iteration 2

76 processes; 103 threads; 687 fds

Thread states: 1 running, 102 sleeping, 0 stopped, 0 zombie

CPU states: 44.84% idle, 0.51% user, 39.17% kernel, 15.46% interrupt

Memory: 496M total, 341M available, page size 4K

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

1047 1047 120 R 9 1420K 00:02:30 37.11% diagd

1 1 120 S 17 1092K 00:00:21 11.34% scmd

1000 1000 115 S 0 0K 00:00:09 2.06% [sock/1]

1026 1026 120 S 20 26044K 00:00:05 1.54% syslogd

1027 1027 120 S 12 9280K 00:01:12 1.03% devd

4 4 115 S 0 0K 00:00:06 0.51% [ksoftirqd/0]

1009 1009 115 S 0 0K 00:00:08 0.51% [karp/1]

1010 1010 115 S 0 0K 00:00:13 0.51% [kND/1]

5373 5373 120 S 8 1496K 00:00:00 0.51% top

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

3 3 99 S 0 0K 00:00:00 0.00% [migration/0]

5 5 99 S 0 0K 00:00:00 0.00% [watchdog/0]

6 6 115 S 0 0K 00:00:01 0.00% [events/0]

7 7 115 S 0 0K 00:00:00 0.00% [khelper]

4796 4796 120 S 11 2744K 00:00:00 0.00% login

4797 4797 120 S 8 28832K 00:00:03 0.00% comsh

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):

76 processes; 103 threads; 687 fds

Thread states: 1 running, 102 sleeping, 0 stopped, 0 zombie

CPU states: 78.71% idle, 0.16% user, 14.86% kernel, 6.25% interrupt

Memory: 496M total, 341M available, page size 4K

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

1047 1047 120 R 9 1420K 00:02:31 14.25% diagd

1 1 120 S 17 1092K 00:00:21 4.25% scmd

1027 1027 120 S 12 9280K 00:01:12 1.29% devd

1000 1000 115 S 0 0K 00:00:09 0.37% [sock/1]

5373 5373 120 S 8 1500K 00:00:00 0.37% top

6 6 115 S 0 0K 00:00:01 0.18% [events/0]

1009 1009 115 S 0 0K 00:00:08 0.18% [karp/1]

1010 1010 115 S 0 0K 00:00:13 0.18% [kND/1]

4795 4795 120 S 11 2372K 00:00:01 0.18% telnetd

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

3 3 99 S 0 0K 00:00:00 0.00% [migration/0]

4 4 115 S 0 0K 00:00:06 0.00% [ksoftirqd/0]

5 5 99 S 0 0K 00:00:00 0.00% [watchdog/0]

7 7 115 S 0 0K 00:00:00 0.00% [khelper]

4796 4796 120 S 11 2744K 00:00:00 0.00% login

4797 4797 120 S 8 28832K 00:00:03 0.00% comsh

# Display process statistics in interactive mode.

<Sysname> monitor process

76 processes; 103 threads; 687 fds

Thread states: 1 running, 102 sleeping, 0 stopped, 0 zombie

CPU states: 78.98% idle, 0.16% user, 14.57% kernel, 6.27% interrupt

Memory: 496M total, 341M available, page size 4K

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

1047 1047 120 R 9 1420K 00:02:39 14.13% diagd

1 1 120 S 17 1092K 00:00:23 3.98% scmd

1027 1027 120 S 12 9280K 00:01:13 1.44% devd

1000 1000 115 S 0 0K 00:00:09 0.36% [sock/1]

1009 1009 115 S 0 0K 00:00:09 0.36% [karp/1]

4 4 115 S 0 0K 00:00:06 0.18% [ksoftirqd/0]

1010 1010 115 S 0 0K 00:00:13 0.18% [kND/1]

4795 4795 120 S 11 2372K 00:00:01 0.18% telnetd

5491 5491 120 S 8 1500K 00:00:00 0.18% top

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

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

87 processes; 113 threads; 735 fds

Thread states: 2 running, 111 sleeping, 0 stopped, 0 zombie

CPU states: 86.57% idle, 0.83% user, 11.74% kernel, 0.83% interrupt

Memory: 755M total, 414M available, page size 4K

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

864 864 120 S 24 27020K 00:00:43 8.95% syslogd

1173 1173 120 R 24 2664K 00:00:01 2.37% top

866 866 120 S 18 10276K 00:00:09 0.69% devd

1 1 120 S 16 1968K 00:00:04 0.41% scmd

881 881 120 S 8 2420K 00:00:07 0.41% diagd

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

87 processes; 113 threads; 735 fds

Thread states: 1 running, 112 sleeping, 0 stopped, 0 zombie

CPU states: 90.66% idle, 0.88% user, 5.77% kernel, 2.66% interrupt

Memory: 755M total, 414M available, page size 4K

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

862 862 120 S 61 5384K 00:00:01 0.00% dbmd

905 905 120 S 35 2464K 00:00:02 0.00% ipbased

863 863 120 S 31 1956K 00:00:00 0.00% had

884 884 120 S 31 30600K 00:00:00 0.00% lsmd

889 889 120 S 29 61592K 00:00:00 0.00% routed

· Enter k and then enter a JID to kill a process. If you enter 884, the process with the JID of 884 is killed.

Enter the JID to kill: 884

84 processes; 107 threads; 683 fds

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

CPU states: 59.03% idle, 1.92% user, 37.88% kernel, 1.15% interrupt

Memory: 755M total, 419M available, page size 4K

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

862 862 120 S 56 5384K 00:00:01 0.00% dbmd

905 905 120 S 35 2464K 00:00:02 0.00% ipbased

863 863 120 S 30 1956K 00:00:00 0.00% had

889 889 120 S 29 61592K 00:00:00 0.00% routed

1160 1160 120 S 28 23096K 00:00:01 0.19% sshd

· Enter q to quit interactive mode.

Table 13 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 ] [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

Any view

Predefined user roles

network-admin

mdc-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.

slot slot-number: Specifies a card by its slot number. If you do not specify this option, the command displays thread statistics for the active MPU. (In standalone 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 14 to perform relevant operations.

Table 14 Interactive commands

Commands	Description
? or h	Displays help information that includes available interactive commands.
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.
<	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]

# 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

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 15 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 files for exceptions and set the maximum number of core files.

Syntax

In standalone mode:

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

In IRF mode:

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

Views

User view

Default

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

Predefined user roles

network-admin

mdc-admin

Parameters

off: Disables core file generation.

maxcore value: Enables core file generation and sets the maximum number of core 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 a card by its slot number. If you do not specify this option, the command enables or disables core file generation for a process and sets the maximum number of core files on the active MPU. (In standalone 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 file each time the specified process crashes until the maximum number of core files is reached. A core file records the exception information.

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

Examples

# Disable core file generation for process routed.

<Sysname> process core off name routed

# Enable core file generation for process routed and set the maximum number of core 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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

User view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command clears context information for process exceptions on the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command clears context information for process exceptions on the global active MPU. (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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command clears kernel thread deadloop information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command clears kernel thread deadloop information for the global active MPU. (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 [ slot slot-number [ cpu cpu-number ] ]

In IRF mode:

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

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command clears kernel thread exception information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command clears kernel thread exception information for the global active MPU. (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

reset kernel reboot

Use reset kernel reboot to clear kernel thread reboot information.

Syntax

In standalone mode:

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

In IRF mode:

reset kernel reboot [ chassis chassis-number slot slot-number [ cpu cpu-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command clears kernel thread reboot information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command clears kernel thread reboot information for the global active MPU. (In IRF mode.)

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

Examples

# Clear kernel thread reboot information.

<Sysname> reset kernel reboot

Related commands

display kernel reboot

reset kernel starvation

Use reset kernel starvation to clear kernel thread starvation information.

Syntax

In standalone mode:

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

In IRF mode:

reset kernel starvation [ chassis chassis-number slot slot-number [ cpu cpu-number ] ]

Views

User view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies an MPU by its slot number. If you do not specify this option, the command clears kernel thread starvation information for the active MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. If you do not specify this option, the command clears kernel thread starvation information for the global active MPU. (In IRF mode.)

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

Examples

# Clear kernel thread starvation information.

<Sysname> reset kernel starvation

Related commands

display kernel starvation

third-part-process start

Use third-part-process start to start a third-party process.

Syntax

third-part-process start name process-name [ arg args ]

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

name process-name: Specifies the name of a third-party process. The value can be puppet or chef.

arg args: Specifies the arguments used when the third-party process is started. The value and format of the arguments must conform to the rules of the third party process. If you do not specify this option, the command starts a third-party process without any arguments.

Usage guidelines

Use this command to start a third-party process, such as Puppet or Chef when the Comware system is operating.

Examples

# Start third-party process puppet.

<Sysname> system-view

[Sysname] third-part-process start name puppet arg agent --certname=1.1.1.1 --server=1.1.1.2

Related commands

third-part-process stop

Use third-part-process stop to stop a third-party process.

Syntax

third-part-process stop pid pid&<1-10>

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

pid&<1-10>: Specifies a space-separated list of up to 10 third-party processes that have been started.

Usage guidelines

This command can only be used to stop processes started by the third-part-process start command. To display the ID of a third-party process, use the display process all command. "Y" in the THIRD field from the output indicates the third-party process and the PID field indicates the ID of the process.

Examples

# Stop third party process puppet.

<Sysname> display process all

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

20 35 0.0 0.0 D 100 Y - 00:00:00 puppet

---- More ----

<Sysname> system-view

[Sysname] third-part-process stop pid 35

Related commands

display process all

third-part-process start

11-Network Management and Monitoring Command Reference

Process monitoring and maintenance commands

display kernel exception

monitor kernel starvation exclude-thread

reset exception context

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