[OmniOS-discuss] Help with debugging crash dump

[Lawrence Giam]

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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