Re: Help! Everything is crashing!

Bjarni R. Einarsson (bre@margmidlun.is)
Sat, 28 Mar 1998 12:40:17 +0000


Call me stubborn, but I still think the crashes might be attack related.
I just found more 'evidence' when I typed 'dmesg'.

Unfortunately dmesg does not include timestamps.. somebody please add
timestamps to the kernel messages!! :-) If anyone has a patch to do this
I'd love to apply it. Anyway. It is possible that the fact that the
following oopses are followed IMMEDIATELY by teardrop warnings, may not be
a coincidence.

I have this machine tcpdumping on the same network as my crashing proxy
server.. which hasn't crashed since I changed kernels to 2.0.32 w/ 2.0.29
networking.

The machine that recorded this stuff is running 2.0.31 w/ 2.0.29 networking,
because after 24 hours of heavy stress testing on it barfed out a stream of
oops-es and rebooted. This implies to me that either my problems are
probably NOT the 2.0.30 network codes fault.

I'm still tcpdumping and stresstesting.

I'm just a lowly sysadmin, so I don't know what to do with these oopses
other than send them to you.. dmesg said:

nable to handle kernel NULL pointer dereference at virtual address c0000014
current->tss.cr3 = 02d13000, %cr3 = 02d13000
*pde = 00102067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0014011a>]
EFLAGS: 00010202
eax: 00000000 ebx: 00d6d598 ecx: 00000018 edx: 00d6d658
esi: 030e38d8 edi: 00000000 ebp: 00000009 esp: 014cdf10
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process make (pid: 21833, process nr: 45, stackpage=014cd000)
Stack: 00095d44 00095d04 0000002e 014cdf80 00d6d598 00000000 00000018 00000014
00002000 00095d19 036de7d8 030e38d8 0013f5b8 00095d04 00095d44 001eaef8
00000000 00095d44 001e10c4 0014d1de 01c04578 00000003 00000000 00000001
Call Trace: [<0013f5b8>] [<0014d1de>] [<0013ee00>] [<00138a54>] [<00117937>] [<0010a57b>]
Code: 83 7f 14 00 74 09 8b 53 14 8b 43 18 89 42 18 8b 54 24 14 8b
Aiee, killing interrupt handler
Unable to handle kernel NULL pointer dereference at virtual address c0000014
current->tss.cr3 = 01619000, %cr3 = 01619000
*pde = 00102067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0014011a>]
EFLAGS: 00010206
eax: 00000000 ebx: 00ed3618 ecx: 00000018 edx: 00ed30d8
esi: 00ed36d8 edi: 00000000 ebp: 00000009 esp: 00477f10
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process cc1 (pid: 22100, process nr: 53, stackpage=00477000)
Stack: 00095a50 00095a10 0000002e 00477f80 00ed3618 00000000 00000018 00000014
00002000 00095a25 00ed3e98 00ed36d8 0013f5b8 00095a10 00095a50 001eaef8
00000000 00095a50 001e10c4 0014d1de 01c04578 00000003 00000000 00000001
Call Trace: [<0013f5b8>] [<0014d1de>] [<0013ee00>] [<00138a54>] [<00117937>] [<0010a57b>]
Code: 83 7f 14 00 74 09 8b 53 14 8b 43 18 89 42 18 8b 54 24 14 8b
Aiee, killing interrupt handler
Unable to handle kernel NULL pointer dereference at virtual address c0000014
current->tss.cr3 = 01288000, %cr3 = 01288000
*pde = 00102067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0014011a>]
EFLAGS: 00010202
eax: 00000000 ebx: 030e3598 ecx: 00000018 edx: 030e3958
esi: 030e3a18 edi: 00000000 ebp: 00000009 esp: 02ec5f10
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process cc1 (pid: 22615, process nr: 51, stackpage=02ec5000)
Stack: 00095c48 00095c08 0000002e 02ec5f80 030e3598 00000000 00000018 00000014
00002000 00095c1d 030e32d8 030e3a18 0013f5b8 00095c08 00095c48 001eaef8
00000000 00095c48 001e10c4 0014d1de 01c04578 00000003 00000000 00000001
Call Trace: [<0013f5b8>] [<0014d1de>] [<0013ee00>] [<00138a54>] [<00117937>] [<0010a57b>]
Code: 83 7f 14 00 74 09 8b 53 14 8b 43 18 89 42 18 8b 54 24 14 8b
Aiee, killing interrupt handler
Unable to handle kernel NULL pointer dereference at virtual address c0000014
current->tss.cr3 = 00901000, %cr3 = 00901000
*pde = 00102067
*pte = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<0014011a>]
EFLAGS: 00010202
eax: 00000000 ebx: 033fd918 ecx: 00000018 edx: 033fd998
esi: 033fdb58 edi: 00000000 ebp: 00000009 esp: 0386af10
ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
Process as (pid: 23000, process nr: 56, stackpage=0386a000)
Stack: 00095f3c 00095efc 0000002e 0386af80 033fd918 00000000 00000018 00000014
00002000 00095f11 00d6d458 033fdb58 0013f5b8 00095efc 00095f3c 001eaef8
00000000 00095f3c 001e10c4 0014d1de 01c04578 00000003 00000000 00000001
Call Trace: [<0013f5b8>] [<0014d1de>] [<0013ee00>] [<00138a54>] [<00117937>] [<0010a57b>]
Code: 83 7f 14 00 74 09 8b 53 14 8b 43 18 89 42 18 8b 54 24 14 8b
Aiee, killing interrupt handler
IP: Invalid IP fragment (offset > end) found from 198.137.241.30
IP: Invalid IP fragment (offset > end) found from 198.137.241.30
IP: Invalid IP fragment (offset > end) found from 198.137.241.30
IP: Invalid IP fragment (offset > end) found from 198.137.241.30
IP: Invalid IP fragment (offset > end) found from 198.137.241.30

-- 
Bjarni R. Einarsson
 bre@margmidlun.is               [ THIS SPACE INTENTIONALLY LEFT BLANK ]
 http://www.mmedia.is/~bre
 Juggler@IRC                         Hail Eris!  All Hail Discordia!
 

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