Re: port-amd64/39283: Kernel crash on Dell Poweredge 2950

[fredrik%netbsd.se@localhost]

Hi again,

Just curious, was the information of any use?

Regards
Fredrik


>> Hi,
>>
>> The next time it crashes like this, please do "show reg". Take the value
>> of
>> 'rsp' and do something like this:
>>
>> x/Lx 0xffffffff12345678,40
>>
>> ... adding the ,40 at the end. That will dump some of the stack. Go
>> through each value dumped, one at a time, until you find something
>> useful
>> giving each value to this command:
>>
>> x/I 0xffffffff12345678
>>
>> You will get a function name at some point - probably on the first
>> value.
>> It
>> will show us where the call to NULL is being made from.
>>
>> Thanks,
>> Andrew
>>
>
> Hi,
>
> The machine hanged sometime tonight again, here is the stack dump, hope it
> helps:
>
> db{0}> show reg
> ds          0x10
> es          0xc4c8
> fs          0x7
> gs          0x8
> rdi         0x6
> rsi         0x3f8
> rbp         0xffff80004f8ac508
> rbx         0xffff80004f8ac518
> rdx         0x8
> rcx         0x6
> rax         0x1
> r8          0xffffffff80a2a98a  copyright+0x8b48a
> r9          0x1
> r10         0xffff80004f8ac428
> r11         0xffffffff802db6f0  comcnputc
> r12         0x100
> r13         0xffffffff809ea668  copyright+0x4b168
> r14         0x6
> r15         0x1
> rip         0xffffffff80552aa5  breakpoint+0x5
> cs          0x8
> rflags      0x246
> rsp         0xffff80004f8ac508
> ss          0x10
> netbsd:breakpoint+0x5:  leave
>
> db{0}> x/Lx 0xffff80004f8ac508,40
> 0xffff80004f8ac508:     ffff80004f8ac608        ffffffff80490470
> 30000000
> 08              ffff80004f8ac618        ffff80004f8ac538
> ffff80004f8ac618
>         ffff80004f8ac548        3f8                     8
> 0xffff80004f8ac550:     6                       ffffffff80a2a98a        0
> 0xffff80004f8ac568:     ffffffff80cf6dc0        0                       6
> 0xffff80004f8ac580:     1                       ffff80004f8ac648        6
> 0xffff80004f8ac598:     ffff800007dbf500        ffff80004b26a000
> ffff8000
> 4f8ac608        ffffffff80487e61        ffff800000000000        3
> 0xffff80004f8ac5c8:     0                       ffffffff801158ae        8
> 0xffff80004f8ac5e0:     7                       ffff80004f8ac5f8
> ffffffff
> 80cf6dc0        ffffffff809ea9c0        ffffffff807c8960
> ffff80004f8ac648
>         ffffffff80487fc3        6008ac668               4
> 0xffff80004f8ac628:     ffffffff80ccdf30        ffff80004b26a000
> ffffffff
> 80ccdf30        3d                      ffff80004f8ac678
> ffffffff8045db26
>         ffffffff80c1b640        ffffffff80ccde80        ffffffff80c1b640
> 0xffff80004f8ac670:     1                       ffff80004f8ac6d8
> ffffffff
> 8048e2fa        ffff80004f8ac6d8        1ffffff80489153         0
> 0xffff80004f8ac6a0:     ffffffff80481b0d        600000000
> ffffffff
> 80ccde80        ffffffff80c1b640        1                       0
> 0xffff80004f8ac6d0:     3d                      ffff80004f8ac6f8
> ffffffff
> 8048e60c        ffffffff80ccdff0        ffffffff80cbd630
> ffff80004f8ac738
>         ffffffff80481b2e
>
> db{0}> x/I 0xffff80004f8ac508
> 0xffff80004f8ac508:     orb     %al,%dh
>
>
> db{0}> x/I 0xffff80004f8ac608
> 0xffff80004f8ac608:     rex.w    movb   $0xff,0xffffffffff80004f(%rdx)
>
> db{0}> x/I ffffffff80490470
> netbsd:panic+0x260:     jmp     netbsd:panic+0x251
>
> db{0}> x/I 3000000008
> 0x3000000008:fatal page fault in supervisor mode
> trap type 6 code 0 rip ffffffff805532d7 cs 8 rflags 10216 cr2
> 7fbfc00c0000 cpl 8 rsp ffff80004f8abf50
>    kernel: page fault trap, code=0
> Faulted in DDB; continuing...
>
> db{0}> x/I ffff80004f8ac618
> 0xffff80004f8ac618:     pushl   $0x6008ac6
>
> db{0}> x/I ffff80004f8ac538
> 0xffff80004f8ac538:     rex.w    ldsq   0xffffffffff80004f(%rdx),%rcx
>
> db{0}> x/I ffff80004f8ac618
> 0xffff80004f8ac618:     pushl   $0x6008ac6
>
> db{0}> x/I ffff80004f8ac548
> 0xffff80004f8ac548:     orb     %al,0(%rax)
>
> db{0}> x/I 0xffff80004f8ac550
> 0xffff80004f8ac550:     push    %es
>
> db{0}> x/I 0xffffffff80a2a98a
> netbsd:copyright+0x8b48a:       orb     0(%rax),%al
>
> db{0}> x/I 0xffff80004f8ac568
> 0xffff80004f8ac568:     shrb    $0x80,0xffffffffffffffcf(%rbp)
>
> db{0}> x/I 0xffffffff80cf6dc0
> netbsd:ld_prime+0x2d00: call    0xffffffff812a89e0
>
> db{0}> x/I 0xffff80004f8ac580
> 0xffff80004f8ac580:     addl    %eax,0(%rax)
>
> db{0}> x/I 0xffff80004f8ac648
> 0xffff80004f8ac648:     js      0xffff80004f8ac610
>
> db{0}> x/I 0xffff80004f8ac598
> 0xffff80004f8ac598:     addb    %dh,%ch
>
> db{0}> x/I 0xffff800007dbf500
> 0xffff800007dbf500:     pop     %es
>
> db{0}> x/I 0xffff80004b26a000
> 0xffff80004b26a000:     addb    %al,0(%rax)
>
> db{0}> x/I 0xffff8000
> 0xffff8000:fatal page fault in supervisor mode
> trap type 6 code 0 rip ffffffff805532d7 cs 8 rflags 10217 cr2
> 7fbfc0003ff8 cpl 8 rsp ffff80004f8abf50
>      kernel: page fault trap, code=0
> Faulted in DDB; continuing...
>
> db{0}> x/I 0xffffffff80487e61
> netbsd:lockdebug_dump+0x111:    rex.wb   movq   0x40(%r13),%rdi
>
> db{0}> x/I 0xffff80004f8ac5c8
> 0xffff80004f8ac5c8:     addb    %al,0(%rax)
>
> db{0}> x/I 0xffffffff801158ae
> netbsd:Xspllower+0xe:   movl    %ebx,%eax
>
> db{0}> x/I 0xffff80004f8ac5e0
> 0xffff80004f8ac5e0:     pop     %es
>
> db{0}> x/I 0xffff80004f8ac5f8
> 0xffff80004f8ac5f8:     shrb    $0xff,0xffffffffffff809e(%rcx)
>
> db{0}> x/I 0xffffffff80cf6dc0
> netbsd:ld_prime+0x2d00: call    0xffffffff812a89e0
>
> db{0}> x/I 0xffffffff809ea9c0
> netbsd:copyright+0x4b4c0:       popal
>
> db{0}> x/I 0xffffffff807c8960
> netbsd:__func__.7368:   insb    %dx,%es:(%rdi)
>
> db{0}> x/I 0xffff80004f8ac648
> 0xffff80004f8ac648:     js      0xffff80004f8ac610
>
> db{0}> x/I 0xffffffff80487fc3
> netbsd:lockdebug_abort1+0xd3:   nop
>
> db{0}> x/I 0xffff80004f8ac628
> 0xffff80004f8ac628:     xorb    %bl,%bh
>
> db{0}> x/I ffffffff80ccdf30
> netbsd:l2cap_pdu_pool+0xb0:     addb    $-0x60,%al
>
> db{0}> x/I 0xffff80004b26a000
> 0xffff80004b26a000:     addb    %al,0(%rax)
>
> db{0}> x/I 0xffff80004f8ac678
> 0xffff80004f8ac678:     fadd    %st(6),%st
>
> db{0}> x/I 0xffffffff8045db26
> netbsd:mutex_tryenter+0x1a6:    jmp     netbsd:mutex_tryenter+0x59
>
> db{0}> x/I 0xffffffff80c1b640
> netbsd:pool_allocator_kmem:     loopne  netbsd:pool_allocator_meta+0x2b
>
> db{0}> x/I 0xffffffff80ccde80
> netbsd:l2cap_pdu_pool:  andb    %ah,%al
>
> db{0}> x/I 0xffffffff80c1b640
> netbsd:pool_allocator_kmem:     loopne  netbsd:pool_allocator_meta+0x2b
>
> db{0}> x/I 0xffff80004f8ac670
> 0xffff80004f8ac670:     addl    %eax,0(%rax)
>
> db{0}> x/I 0xffff80004f8ac6d8
> 0xffff80004f8ac6d8:     clc
>
> db{0}> x/I 0x1ffffff80489153
> 0x1ffffff80489153:fatal protection fault in supervisor mode
> trap type 4 code 0 rip ffffffff80554360 cs 8 rflags 10246 cr2
> 7fbfffe03330 cpl 8 rsp ffff80004f8abf10
>       kernel: protection fault trap, code=0
> Faulted in DDB; continuing...
>
> db{0}> x/I 0x0xffff80004f8ac6a0
> Bad character in number
>
> db{0}> x/I 0xffffffff80481b0d
> netbsd:callback_run_roundrobin+0x2d:    rex.rb   movl   0x38(%r12),%r15d
>
> db{0}> x/I 0xffff80004f8ac6f8
> 0xffff80004f8ac6f8:     cmpb    %al,%bh
>
> db{0}> x/I 0xffffffff8048e60c
> netbsd:pool_reclaim_callback+0x2c:      rex.wr   movq   %r12,%rdi
>
> db{0}> x/I 0xffffffff80ccdff0
> netbsd:l2cap_pdu_pool+0x170:    nop
>
> db{0}> x/I 0xffffffff80cbd630
> netbsd:kmem_map_store+0x130:    addl    $0x6,%eax
>
> db{0}> x/I 0xffff80004f8ac738
> 0xffff80004f8ac738:     testb   $0xc7,%al
>
> db{0}> x/I ffffffff80481b2e
> netbsd:callback_run_roundrobin+0x4e:    rex.b    movl   %eax,%r14d
>
>
> Regards
> Fredrik
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