# [OmniOS-discuss] Help with debugging crash dump

Lawrence Giam paladinemishakal at gmail.com
Tue May 12 10:33:42 UTC 2015

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    Hi All,

    I have tried to analyse the crash dump and the following is what I get:

    root at sgbk02:/var/crash/unknown# mdb -k unix.3 vmcore.3
    mdb: warning: dump is from SunOS 5.11 omnios-8c08411; dcmds and macros may
    not match kernel implementation
    mdb: failed to read .symtab header for 'unix', id=0: no mapping for address
    mdb: failed to read .symtab header for 'genunix', id=1: no mapping for
    address
    mdb: failed to read modctl at ffffff113ba4cf08: no mapping for address
    > ::stack
    > ::showrev
    Hostname: sgsan3
    Release: 5.11
    Kernel architecture: i86pc
    Application architecture: amd64
    Kernel version: SunOS 5.11 i86pc omnios-8c08411
    Platform: i86pc
    > ::status
    debugging crash dump vmcore.3 (64-bit) from sgsan3
    operating system: 5.11 omnios-8c08411 (i86pc)
    image uuid: 299f9dfc-c835-4319-b0cb-d5c0b0c5841e
    panic message: BAD TRAP: type=e (#pf Page fault) rp=ffffff007d2cd450
    addr=ffffff14a0c700c8
    dump content: kernel pages only
    > $r
    %rax = 0x0000000000000000                 %r9  = 0xffffff14a0c6fea8
    %rbx = 0xffffff14a0c6f990                 %r10 = 0x6636314141416574
    %rcx = 0xffffff116bc9da00                 %r11 = 0xffffff007d2cd530
    %rdx = 0xffffff14a0c6fdb8                 %r12 = 0x0000000000000016
    %rsi = 0x0000000000000000                 %r13 = 0xffffff11b84409b8
    %rdi = 0xffffff113b62de00                 %r14 = 0x0000000000000002
    %r8  = 0xffffff11b84409b8                 %r15 = 0xffffff14a0c6fea8

    %rip = 0xfffffffff82a22b8 smb_fsop_lookup+0x118
    %rbp = 0xffffff007d2cd6b0
    %rsp = 0xffffff007d2cd540
    %rflags = 0x00010286
      id=0 vip=0 vif=0 ac=0 vm=0 rf=1 nt=0 iopl=0x0
      status=<of,df,IF,tf,SF,zf,af,PF,cf>

                            %cs = 0x0030    %ds = 0x004b    %es = 0x004b
    %trapno = 0xe           %fs = 0x0000    %gs = 0x01c3
       %err = 0x0
    > 0xfffffffff82a22b8::dis
    mdb: failed to read instruction at 0xfffffffff82a22b8: no mapping for
    address
    > 0xfffffffff82a22b8::dump
                        0 1 2 3  4 5 6 7 \/ 9 a b  c d e f  01234567v9abcdef
    mdb: failed to read data at 0xfffffffff82a22b8: no mapping for address
    > ::quit

    Look at this, it looks like some SMB issue. Can some one show me how to get
    more info from the crash dump?

    Thanks & Regards.
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