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Subject.96/.97 : random crashes (detailed Oops report)
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I have been getting random crashes lately (some with Oops info, some
plain reboot. Bad external cache might have interfered, too... :-( ).

Here is what I was able to grab from the error log :

Unable to handle kernel NULL pointer dereference at virtual address c000000008]
current->tss.cr3 = 00333000, %cr3 = 00333000
*pde = 00102067
*pte = 00000027
Oops: 0002
CPU: 0
EIP: 0010:[<00120290>]
EFLAGS: 00010046
eax: 00000000 ebx: 001e3778 ecx: 00000000 edx: 00000296
esi: 00000001 edi: 001bc514 ebp: 00000000 esp: 0117df1c
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process cpp (pid: 945, process nr: 38, stackpage=0117d000)
Stack: 00f58618 40036d70 0117dfbc ffff0007 001bc514 00000000 00000293 00119952
00000003 00000000 00000000 00f58618 40036d70 0117dfbc ffff0007 00f58618
40036d70 0117dfbc ffff0004 001e37ac 00000000 0011cba0 00a33025 00105025
Call Trace: [<00119952>] [<0011cba0>] [<0010ff3e>] [<0010fe00>] [<0010a79b>]
Code: 89 54 24 14 8b 43 10 8b 4c 24 10 89 41 10 89 48 20 8d 45 01

>>EIP: 120290 <__get_free_pages+c0/1c0>
Trace: 119952 <do_wp_page+12/2b0>
Trace: 11cba0 <filemap_nopage>
Trace: 10ff3e <do_page_fault+13e/2d0>
Trace: 10ff3e <do_page_fault+13e/2d0>
Trace: 10a79b <error_code+4b/60>

Code: 120290 <__get_free_pages+c0/1c0> movl %edx,0x14(%esp,1)
Code: 120294 <__get_free_pages+c4/1c0> movl 0x10(%ebx),%eax
Code: 120297 <__get_free_pages+c7/1c0> movl 0x10(%esp,1),%ecx
Code: 12029b <__get_free_pages+cb/1c0> movl %eax,0x10(%ecx)
Code: 12029e <__get_free_pages+ce/1c0> movl %ecx,0x20(%eax)
Code: 1202a1 <__get_free_pages+d1/1c0> leal 0x1(%ebp),%eax

This is ca page_alloc.c:146...

--
Thomas.Quinot@Cuivre.FdN.FR <URL:http://Web.FdN.FR/~tquinot/>


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