System panic'd inside the dmp_update_stats routine

Solution Verified - Updated -

Issue

  • Based on the evidence supplied, node hostname panic'd inside the dmp_update_stats routine
    Note: This function is apart of the vxdmp kernel module:

    crash> sys
          KERNEL: vmlinux
        DUMPFILE: vmcore  [PARTIAL DUMP]
        CPUS: 16
        DATE: Sun Feb 26 00:05:46 2012
          UPTIME: 97 days, 18:08:25
    LOAD AVERAGE: 1.54, 0.90, 0.61
           TASKS: 971
        NODENAME: hostname
         RELEASE: 2.6.18-164.2.1.el5
         VERSION: #1 SMP Mon Sep 21 04:37:42 EDT 2009
         MACHINE: x86_64  (2666 Mhz)
          MEMORY: 23.7 GB
           PANIC: "Oops: 0002 [1] SMP " (check log for details)
    crash>
    
    crash> bt
    PID: 4965   TASK: ffff81031e683820  CPU: 5   COMMAND: "dmp_daemon"
     #0 [ffff81002c7f5bc0] crash_kexec at ffffffff800acb03
     #1 [ffff81002c7f5c80] __die at ffffffff80065127
     #2 [ffff81002c7f5cc0] do_page_fault at ffffffff80066da7
     #3 [ffff81002c7f5db0] error_exit at ffffffff8005dde9
        [exception RIP: dmp_update_stats+0x203]
        RIP: ffffffff886f26c9  RSP: ffff81002c7f5e60  RFLAGS: 00010286
        RAX: ffff81002efbf000  RBX: 0000000000002131  RCX: ffffffff9c6f2756
        RDX: ffff81061fb52800  RSI: 00000000000027ff  RDI: ffffffd470a135a0
        RBP: 0000000000001080   R8: 0000000000000000   R9: 0000000000000000
        R10: 0000000000000007  R11: ffff81032f5008c0  R12: 0000000000000000
        R13: ffff81032f5008c0  R14: 00000000000027ff  R15: ffff81035afb53c0
        ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
     #4 [ffff81002c7f5ec8] dmp_process_stats at ffffffff886f410b [vxdmp]
     #5 [ffff81002c7f5f48] kernel_thread at ffffffff8005dfb1
    crash> 
    
    crash> sym -m vxdmp | grep dmp_update_stats 
    ffffffff886f24c6 (t) dmp_update_stats
    crash>
    

Environment

  • Red Hat Enterprise Linux 5.4
  • Kernel 2.6.18-164.2.1.el5
  • VRTSvxvm 5.0MP3RP3HF2

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