From: Nick Craig-Wood <ncw1@axis.demon.co.uk>
To: user-mode-linux-devel@lists.sourceforge.net
Subject: [uml-devel] skas3 + 2.4.21 oops
Date: Tue, 16 Dec 2003 16:31:34 +0000 [thread overview]
Message-ID: <20031216163134.GA30608@axis.demon.co.uk> (raw)
We are running the skas3 patch (host-skas3.patch from the uml website)
on top of a debian 2.4.21 kernel tree with fairsched. We got these
oopses recently. After the second the server was basically unusable -
any attempt to use tools like ps to access the process table just
never returned.
We have swapped out the harddisks to a different computer to try to
fix this problem with no luck. I guess it must be some usage pattern
of the clients that are causing it. The clients are running UML
linux-2.4.20-6.
Both of the oopses have write_proc_mm() in the backtrace...
Any ideas?
------------------------------------------------------------
ksymoops 2.4.5 on i686 2.4.21-ms1-p4smp. Options used
-V (default)
-k ksyms (specified)
-l modules (specified)
-o /lib/modules/2.4.21-ms1-p4smp/ (default)
-m /boot/System.map-2.4.21-ms1-p4smp (default)
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-disk.o for module ide-disk has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-probe-mod.o for module ide-probe-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-mod.o for module ide-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/md/raid1.o for module raid1 has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/md/md.o for module md has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/fs/ext3/ext3.o for module ext3 has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/fs/jbd/jbd.o for module jbd has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/net/unix/unix.o for module unix has changed since load
Unable to handle kernel NULL pointer dereference at virtual address 00000004
c01f3995
*pde = 00000000
Oops: 0000
CPU: 1
EIP: 0010:[<c01f3995>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246
eax: 00000000 ebx: f6175d98 ecx: f6175d98 edx: 00000000
esi: f6b78a84 edi: f6b78a84 ebp: 00000001 esp: dc025f0c
ds: 0018 es: 0018 ss: 0018
Process linux (pid: 5129, stackpage=dc025000)
Stack: 00000000 f5904918 c01f3bc4 00000000 f6175d98 f6b78a84 f5904900 c8f33e0c
f6b78a84 f5904900 c012b084 f5904918 f6b78a84 0000001c f6b78a9c f6b78a80
0000001c 412b8000 00000000 f68ca800 c8f33e00 c013969a f6b78a80 412b7000
Call Trace: [<c01f3bc4>] [<c012b084>] [<c013969a>] [<c013b917>] [<c0108a23>]
Code: 83 7a 04 00 75 1b c7 42 04 01 00 00 00 c7 43 04 00 00 00 00
>>EIP; c01f3995 <__rb_erase_color+21/184> <=====
>>ebx; f6175d98 <_end+35e67764/384fe9cc>
>>ecx; f6175d98 <_end+35e67764/384fe9cc>
>>esi; f6b78a84 <_end+3686a450/384fe9cc>
>>edi; f6b78a84 <_end+3686a450/384fe9cc>
>>esp; dc025f0c <_end+1bd178d8/384fe9cc>
Trace; c01f3bc4 <rb_erase+cc/d8>
Trace; c012b084 <do_munmap+10c/254>
Trace; c013969a <write_proc_mm+da/150>
Trace; c013b917 <sys_write+8f/100>
Trace; c0108a23 <system_call+33/38>
Code; c01f3995 <__rb_erase_color+21/184>
00000000 <_EIP>:
Code; c01f3995 <__rb_erase_color+21/184> <=====
0: 83 7a 04 00 cmpl $0x0,0x4(%edx) <=====
Code; c01f3999 <__rb_erase_color+25/184>
4: 75 1b jne 21 <_EIP+0x21> c01f39b6 <__rb_erase_color+42/184>
Code; c01f399b <__rb_erase_color+27/184>
6: c7 42 04 01 00 00 00 movl $0x1,0x4(%edx)
Code; c01f39a2 <__rb_erase_color+2e/184>
d: c7 43 04 00 00 00 00 movl $0x0,0x4(%ebx)
8 warnings issued. Results may not be reliable.
------------------------------------------------------------
ksymoops 2.4.5 on i686 2.4.21-ms1-p4smp. Options used
-V (default)
-k ksyms (specified)
-l modules (specified)
-o /lib/modules/2.4.21-ms1-p4smp/ (default)
-m /boot/System.map-2.4.21-ms1-p4smp (default)
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-disk.o for module ide-disk has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-probe-mod.o for module ide-probe-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/ide/ide-mod.o for module ide-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/md/raid1.o for module raid1 has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/drivers/md/md.o for module md has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/fs/ext3/ext3.o for module ext3 has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/fs/jbd/jbd.o for module jbd has changed since load
Warning (expand_objects): object /lib/modules/2.4.21-ms1-p4smp/kernel/net/unix/unix.o for module unix has changed since load
kernel BUG at mmap.c:735!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c012aca8>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010287
eax: f402ff5c ebx: f6175d80 ecx: d263df98 edx: d263df80
esi: 08213000 edi: d263df98 ebp: ea893680 esp: f402ff20
ds: 0018 es: 0018 ss: 0018
Process linux (pid: 5056, stackpage=f402f000)
Stack: 0000001c 00001000 ea893680 0000001c c012afd4 ea893680 08213000 f402ff5c
0000001c ea89369c ea893680 0000001c c013965d 00000000 f6f63a80 d263df80
c013969a ea893680 08213000 00001000 00000000 f6f63a80 ffffffea 0000001c
Call Trace: [<c012afd4>] [<c013965d>] [<c013969a>] [<c013b917>] [<c0108a23>]
Code: 0f 0b df 02 21 4a 20 c0 89 d8 eb 0c 8b 44 24 1c c7 00 00 00
>>EIP; c012aca8 <find_vma_prev+90/b0> <=====
>>eax; f402ff5c <_end+33d21928/384fe9cc>
>>ebx; f6175d80 <_end+35e6774c/384fe9cc>
>>ecx; d263df98 <_end+1232f964/384fe9cc>
>>edx; d263df80 <_end+1232f94c/384fe9cc>
>>esi; 08213000 Before first symbol
>>edi; d263df98 <_end+1232f964/384fe9cc>
>>ebp; ea893680 <_end+2a58504c/384fe9cc>
>>esp; f402ff20 <_end+33d218ec/384fe9cc>
Trace; c012afd4 <do_munmap+5c/254>
Trace; c013965d <write_proc_mm+9d/150>
Trace; c013969a <write_proc_mm+da/150>
Trace; c013b917 <sys_write+8f/100>
Trace; c0108a23 <system_call+33/38>
Code; c012aca8 <find_vma_prev+90/b0>
00000000 <_EIP>:
Code; c012aca8 <find_vma_prev+90/b0> <=====
0: 0f 0b ud2a <=====
Code; c012acaa <find_vma_prev+92/b0>
2: df 02 fild (%edx)
Code; c012acac <find_vma_prev+94/b0>
4: 21 4a 20 and %ecx,0x20(%edx)
Code; c012acaf <find_vma_prev+97/b0>
7: c0 89 d8 eb 0c 8b 44 rorb $0x44,0x8b0cebd8(%ecx)
Code; c012acb6 <find_vma_prev+9e/b0>
e: 24 1c and $0x1c,%al
Code; c012acb8 <find_vma_prev+a0/b0>
10: c7 00 00 00 00 00 movl $0x0,(%eax)
8 warnings issued. Results may not be reliable.
------------------------------------------------------------
--
Nick Craig-Wood
ncw1@axis.demon.co.uk
-------------------------------------------------------
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next reply other threads:[~2003-12-16 16:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-16 16:31 Nick Craig-Wood [this message]
2003-12-18 1:15 ` [uml-devel] skas3 + 2.4.21 oops Jeff Dike
2003-12-18 18:58 ` BlaisorBlade
2003-12-18 19:07 ` BlaisorBlade
2003-12-19 11:13 ` Nick Craig-Wood
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