2.2.9 crashes

Tani Hosokawa (unknown@riverstyx.net)
Sun, 13 Jun 1999 03:44:55 -0700 (PDT)


this is a stock 2.2.9 kernel+DoS patch+NR_TASKS=2048+OPEN_MAX=1024

I had it in single user mode, repairing a filesystem, and suddenly e2fsck
segfaulted on me, with the following blurb. Then sshd sig11'd, quickly
followed by a bunch of other programs. They all died in the exact same
location, the only difference being the stack pointer and PID. Everything
else (all register values even) were the same. This keeps happening
now... some RAM was added a couple days ago, and the system did seem to
get a little unstable, but I attributed that to the fact that it was sort
of overloaded... any ideas?

current->tss.cr3 = 06794000, %cr3 = 06794000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c011c555>]
EFLAGS: 00010006
eax: c009e740 ebx: c6c86fe0 ecx: 3f253c87 edx: 00000003
esi: c009e740 edi: 00000282 ebp: 00000003 esp: c678bcb4
ds: 0018 es: 0018 ss: 0018
Process e2fsck (pid: 171, process nr: 12, stackpage=c678b000)
Stack: c7056800 00000000 c0122665 c009e740 00000003 c6c8661c c7056800
c01226e6
00000000 00000000 00000400 c7056000 c6780821 c678a000 00000000
c0122e45
c7056000 00000400 00000000 00000000 00000400 00000001 c0122036
00000400
Call Trace: [<c0122665>] [<c01226e6>] [<c0122e45>] [<c0122036>]
[<c01221ee>] [<c01251a5>] [<c0124908>]
[<c0153600>] [<c01206f4>] [<c01208db>] [<c0120a0e>] [<c0107a40>]
[<c010002b>]
Code: 8b 01 89 03 85 c0 74 2b 8b 43 04 85 c0 75 10 89 19 89 c8 2b
Warning: trailing garbage ignored on Code: line
Text: 'Code: 8b 01 89 03 85 c0 74 2b 8b 43 04 85 c0 75 10 89 19 89 c8 2b
'
Garbage: ' '

>>EIP: c011c555 <kmem_cache_alloc+2d/118>
Trace: c0122665 <get_unused_buffer_head+51/a4>
Trace: c01226e6 <create_buffers+2e/18c>
Trace: c0122e45 <grow_buffers+49/e8>
Trace: c0122036 <refill_freelist+6/30>
Trace: c01221ee <getblk+126/14c>
Trace: c01251a5 <block_read+309/524>
Trace: c0124908 <sys_mount+2e0/2e4>
Trace: c0153600 <ip_route_input_slow+a4/4b8>
Code: c011c555 <kmem_cache_alloc+2d/118> 00000000 <_EIP>: <===
Code: c011c555 <kmem_cache_alloc+2d/118> 0: 8b 01
movl (%ecx),%eax <===
Code: c011c557 <kmem_cache_alloc+2f/118> 2: 89 03
movl %eax,(%ebx)
Code: c011c559 <kmem_cache_alloc+31/118> 4: 85 c0
testl %eax,%eax
Code: c011c55b <kmem_cache_alloc+33/118> 6: 74 2b je
c011c588 <kmem_cache_alloc+60/118>
Code: c011c55d <kmem_cache_alloc+35/118> 8: 8b 43 04
movl 0x4(%ebx),%eax
Code: c011c560 <kmem_cache_alloc+38/118> b: 85 c0
testl %eax,%eax
Code: c011c562 <kmem_cache_alloc+3a/118> d: 75 10
jne c011c574 <kmem_cache_alloc+4c/118>
Code: c011c564 <kmem_cache_alloc+3c/118> f: 89 19
movl %ebx,(%ecx)
Code: c011c566 <kmem_cache_alloc+3e/118> 11: 89 c8
movl %ecx,%eax
Code: c011c568 <kmem_cache_alloc+40/118> 13: 2b 00
subl (%eax),%eax

---
tani hosokawa
river styx internet

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