Re: kernel panic-xfs errors

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On 12/8/10 6:59 PM, Dave Chinner wrote:
> On Wed, Dec 08, 2010 at 01:39:10AM -0800, blacknred wrote:
>>
>>
>>> You've done a forced module load. No guarantee your kernel is in any
>>> sane shape if you've done that....
>>
>> Agree, but I'm reasonably convinced that module isn't the issue, because it
>> works fine with my other servers......
>>
>>> Strange failure. Hmmm - i386 arch and fedora - are you running with
>> 4k stacks? If so, maybe it blew the stack...
>>
>> i386 arch, rhel 5.0
> 
> Yup, 4k stacks. This is definitely smelling like a stack blowout.

well, hang on.  The oops said:

EIP:    0060:[<c0529da1>]    Tainted: GF     VLI
EFLAGS: 00010272   (2.6.33.3-85.fc13.x86_64 #1) 
EIP is at do_page_fault+0x245/0x617
eax: ec5ee000   ebx: 00000000   ecx: eb5de084   edx: 0000000e
esi: 00013103   edi: ec5de0b3   ebp: 00000023   esp: ec5de024
ds: 008b   es: 008b   ss: 0078

which is NOT a rhel 5.0 kernel, and it says x86_64.

But the addresses are all 32 bits?

So what's going on here?

> esi: 00013103   edi: ec5de0b3   ebp: 00000023   esp: ec5de024
> ds: 008b   es: 008b   ss: 0078
> Process bm (pid: 3210, ti=ec622000 task=ec5e3450 task.ti=ec6ee000)

end of the stack is ec6ee000, stack grows up, esp is at ec5de024,
well past it (i.e. yes, overrun) if I remember my stack math
right... but that's a pretty huge difference so either I have it
wrong, or things are really a huge mess here.

-Eric

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