SR8803路由器log日志提示CPU问题

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1.1  进程监控和维护命令

display memory、display process、display process cpu、monitor process和monitor thread命令既可显示用户态进程的相关信息，又可显示内核线程的相关信息，为简便起见，在这些命令中，统一使用“进程”一词来指代。

1.1.1  display exception context

display exception context命令用来显示用户态进程异常时的上下文信息。

【命令】

（独立运行模式）

display exception context [ count value ]

（IRF模式）

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

【视图】

任意视图

【缺省用户角色】

network-admin

【参数】

count value：表示上下文信息的显示个数，取值范围为1～20，缺省值为1。

slot slot-number：表示IRF中设备的成员编号。不指定该参数时，表示主设备。（IRF模式）

cpu cpu-number：表示CPU的编号。

【使用指导】

当用户态进程发生一次异常，系统会生成一个core文件，还会生成一条上下文信息，用于记录异常用户态进程的ID、生成core文件的时间、core文件存放的位置、栈信息和寄存器信息。一个core文件对应一条上下文信息，最多可记录的上下文信息数和可记录的core文件数目相同。

【举例】

# 显示在x86体系32位登录设备上的异常上下文信息。

<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

# 显示在x86体系64位登录设备上的异常上下文信息。

<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

# 显示在powerpc体系32位登录设备上的异常上下文信息。

<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

# 显示在powerpc体系64位登录设备上的异常上下文信息。

<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

# 显示在mips体系32位登录设备上的异常上下文信息。

<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

# 显示在mips体系64位登录设备上的异常上下文信息。

<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

表1-1 display exception context命令输出信息描述表