Hi Ingo,
> this is the next, bugfix release of the O(1) scheduler:
>
> http://redhat.com/~mingo/O(1)-scheduler/sched-O1-2.4.17-B0.patch
>
> This release could fix the lockups and crashes reported by some people.
[...]
> Comments, bug reports, suggestions are welcome,
The same machine as before. The same scenario:
1. login
2. startx
3. gimp &
4. netscape &
5. mozilla &
6. freeze & oops
7. SAK
8. pasting oops
9. freeze
Result of ksymoops below. Hope it helps.
ksymoops 2.4.1 on i686 2.4.17sched. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.17sched (specified)
-m /usr/src/linux-2.4.17-scheduler/System.map (specified)
Warning (compare_maps): mismatch on symbol sb_be_quiet , sb_lib says d2845804, /lib/modules/2.4.17sched/kernel/drivers/sound/sb_lib.o says d2843ea4. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sb_lib.o entry
Warning (compare_maps): mismatch on symbol smw_free , sb_lib says d2845810, /lib/modules/2.4.17sched/kernel/drivers/sound/sb_lib.o says d2843eb0. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sb_lib.o entry
Warning (compare_maps): mismatch on symbol audio_devs , sound says d2828e00, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d28287a0. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol midi_devs , sound says d2828e70, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d2828810. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol mixer_devs , sound says d2828e18, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d28287b8. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol num_audiodevs , sound says d2828e14, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d28287b4. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol num_midis , sound says d2828e88, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d2828828. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol num_mixers , sound says d2828e2c, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d28287cc. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol num_synths , sound says d2828e6c, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d282880c. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Warning (compare_maps): mismatch on symbol synth_devs , sound says d2828e40, /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o says d28287e0. Ignoring /lib/modules/2.4.17sched/kernel/drivers/sound/sound.o entry
Jan 6 00:25:55 blurp kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000
Jan 6 00:25:55 blurp kernel: c011311c
Jan 6 00:25:55 blurp kernel: *pde = 00000000
Jan 6 00:25:55 blurp kernel: Oops: 0002
Jan 6 00:25:55 blurp kernel: CPU: 0
Jan 6 00:25:55 blurp kernel: EIP: 0010:[<c011311c>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Jan 6 00:25:55 blurp kernel: EFLAGS: 00010006
Jan 6 00:25:55 blurp kernel: eax: c02b6854 ebx: c9c62000 ecx: c9c6202c edx: 00000000
Jan 6 00:25:55 blurp kernel: esi: c9e08000 edi: c9c62000 ebp: c9e09e74 esp: c9e09e2c
Jan 6 00:25:55 blurp kernel: ds: 0018 es: 0018 ss: 0018
Jan 6 00:25:55 blurp kernel: Process mozilla-bin (pid: 145, stackpage=c9e09000)
Jan 6 00:25:55 blurp kernel: Stack: c9c62000 c9e08000 00000246 c9c6202c c1517788 00000100 00000520 c9c64aa0
Jan 6 00:25:55 blurp kernel: c1405e80 c02b6520 00000001 c9c64000 c9c62000 c9c62000 cc959a64 c9c64564
Jan 6 00:25:55 blurp kernel: c02b6500 00000246 c9e09e84 c0114ebf c9c62000 00000000 c1517788 c0115efc
Jan 6 00:25:55 blurp kernel: Call Trace: [<c0114ebf>] [<c0115efc>] [<c01057c6>] [<c0106ae3>] [<c0121008>]
Jan 6 00:25:55 blurp kernel: [<c0105423>] [<c0121121>] [<c0121008>] [<c01d84bd>] [<c01d8545>] [<c01d91ec>]
Jan 6 00:25:55 blurp kernel: [<c0106bd4>] [<c0106ae3>]
Jan 6 00:25:55 blurp kernel: Code: 89 0a 8b 47 24 8b 55 dc 0f b3 42 0c ff 02 89 57 34 8b 4d f8
>>EIP; c011311c <try_to_wake_up+41c/460> <=====
Trace; c0114ebf <wake_up_process+b/1c>
Trace; c0115efc <do_fork+664/720>
Trace; c01057c6 <sys_clone+1e/28>
Trace; c0106ae3 <system_call+33/38>
Trace; c0121008 <exec_modprobe+0/74>
Trace; c0105423 <kernel_thread+1f/38>
Trace; c0121121 <request_module+a5/1a0>
Trace; c0121008 <exec_modprobe+0/74>
Trace; c01d84bd <sock_create+95/100>
Trace; c01d8545 <sys_socket+1d/50>
Trace; c01d91ec <sys_socketcall+64/200>
Trace; c0106bd4 <error_code+34/3c>
Trace; c0106ae3 <system_call+33/38>
Code; c011311c <try_to_wake_up+41c/460>
0000000000000000 <_EIP>:
Code; c011311c <try_to_wake_up+41c/460> <=====
0: 89 0a mov %ecx,(%edx) <=====
Code; c011311e <try_to_wake_up+41e/460>
2: 8b 47 24 mov 0x24(%edi),%eax
Code; c0113121 <try_to_wake_up+421/460>
5: 8b 55 dc mov 0xffffffdc(%ebp),%edx
Code; c0113124 <try_to_wake_up+424/460>
8: 0f b3 42 0c btr %eax,0xc(%edx)
Code; c0113128 <try_to_wake_up+428/460>
c: ff 02 incl (%edx)
Code; c011312a <try_to_wake_up+42a/460>
e: 89 57 34 mov %edx,0x34(%edi)
Code; c011312d <try_to_wake_up+42d/460>
11: 8b 4d f8 mov 0xfffffff8(%ebp),%ecx
10 warnings issued. Results may not be reliable.
pkot
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