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SubjectRe: BUG: unable to handle kernel paging request
Date
Forgot cpuinfo yesterday, sorry!

Markus

> From: Markus <M4rkusXXL@web.de>
> Date: Sun, May 23, 2010 at 10:44:41PM +0200
>
> > It is 0000000001912178.
> > http://img256.imageshack.us/img256/4370/shotn.gif
>
> True story, the fact that this value is not what it is expected to be
> judging from the code it happens might actually be a clue:
>
> [64112.502507] Code: 8b bf b0 00 00 00 31 ed 48 8d 50 f0 48 85 c0 48
> 0f 45 ea 48 85 ff 74 10 48 89 ee e8 8d d3 ff ff 85 c0 0f 8e c5 00 00
> 00 48 89 eb <49> 8b bd b8 00 00 00 48 85 ff 74 10 48 89 ee e8 6e d3
> ff ff 85 All code
> ========
> 0: 8b bf b0 00 00 00 mov 0xb0(%rdi),%edi
> 6: 31 ed xor %ebp,%ebp
> 8: 48 8d 50 f0 lea -0x10(%rax),%rdx
> c: 48 85 c0 test %rax,%rax
> f: 48 0f 45 ea cmovne %rdx,%rbp
> 13: 48 85 ff test %rdi,%rdi
> 16: 74 10 je 0x28
> 18: 48 89 ee mov %rbp,%rsi
> 1b: e8 8d d3 ff ff callq 0xffffffffffffd3ad
> 20: 85 c0 test %eax,%eax
> 22: 0f 8e c5 00 00 00 jle 0xed
> 28: 48 89 eb mov %rbp,%rbx
> 2b:* 49 8b bd b8 00 00 00 mov 0xb8(%r13),%rdi <--
> trapping instruction 32: 48 85 ff test %rdi,%rdi
> 35: 74 10 je 0x47
> 37: 48 89 ee mov %rbp,%rsi
> 3a: e8 6e d3 ff ff callq 0xffffffffffffd3ad
> 3f: 85 .byte 0x85
>
> Code starting with the faulting instruction
> ===========================================
> 0: 49 8b bd b8 00 00 00 mov 0xb8(%r13),%rdi
> 7: 48 85 ff test %rdi,%rdi
> a: 74 10 je 0x1c
> c: 48 89 ee mov %rbp,%rsi
> f: e8 6e d3 ff ff callq 0xffffffffffffd382
> 14: 85 .byte 0x85
>
>
> and %r13 contains 00000000019129c0 in the register snapshot. Hmm...
>
> > Serial console is no option, but this "netconsole"-thing looks
> > promising. I'll set that up and try to catch the next one with
> > this.
>
> That'll help. Also let me make sure: Is this a vanilla kernel or are
> there any distribution patches on top of it? I see it says
> 2.6.34-gentoo but just in case. If it is not a vanilla kernel please
> try a vanilla one from kernel.org.
>
> Also, please send the whole dmesg of the system, there might be
> something suspicious there and also the output of 'cat /proc/cpuinfo'
> and 'dmidecode', the last one run as root.
>
> Thanks.

processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 955 Processor
stepping : 2
cpu MHz : 3200.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save
bogomips : 6400.59
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 1
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 955 Processor
stepping : 2
cpu MHz : 3200.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save
bogomips : 6400.03
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 2
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 955 Processor
stepping : 2
cpu MHz : 3200.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save
bogomips : 6400.02
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 3
vendor_id : AuthenticAMD
cpu family : 16
model : 4
model name : AMD Phenom(tm) II X4 955 Processor
stepping : 2
cpu MHz : 3200.000
cache size : 512 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save
bogomips : 6400.02
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

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