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Subject2.4.21-pre3 kernel crash
yesterday I've hit a bug on my laptopo ASUS L3800C ;)
with linux kernel 2.4.21-pre3. I think the crash is related to my tunes
with hdparm() (enabling 32bit, enabling DMA, enabling udma5), but I'm not
sure, although I could check, if someone asks. Currently, I can 100%
reproduce the bug (i.e. cannot boot with that kernel).

The crash I actually observe while booting. One of the init scripts starts up also
network and adds default gateway. That's where it crashes. Please Cc: me
in replies.

# ksymoops -K -o /lib/modules/2.4.21-pre3/ -m /boot/ kernel.crash
ksymoops 2.4.8 on i686 2.4.19-gentoo-r10. Options used
-V (default)
-K (specified)
-l /proc/modules (default)
-o /lib/modules/2.4.21-pre3/ (specified)
-m /boot/ (specified)

No modules in ksyms, skipping objects
No ksyms, skipping lsmod
Kernel BUG at panic.c: 141!
invalid operand: 0000
CPU: 0
EIP: 0010:[<c011a3e7>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010282
eax: 00000026 ebx: 00000000 ecx: 00000001 edx: 00000001
esi: c03e5920 edi: 00001000 ebp: 00000000 esp: f764fbf0
ds: 0018 es: 0018 ss: 0018
Process (pid: 1038, stackpage=f764f000)
Stack: c02fee40 0000009b c024dfc1 0000009b 00000000 00000014 00000014 00000001
f7e32000 f7e35000 c03e59d0 00000000 c03e5920 c024e1b4 c03e5920 f7e2d700
00000002 f79f6c80 00000000 c03e5920 c03e5920 c03e59d0 f7e2d700 c03e5920
Call trace: [<c024dfc1>] [<c024e1b4>] [<c024e6df>] [<c024a11d>] [<c01b2380>]
[<c023fc5e>] [<c01b2380>] [<c0248d71>] [<c0248eeb>] [<c024902a>] [<c021b186>]
[<c011f3ca>] [<c013f5bf>] [<c012c41d>] [<c012ccde>] [<c012d0d0>] [<c012d258>]
[<c012d0d0>] [<c0143312>] [<c01437a6>] [<c0143cb5>] [<c0105cc0>] [<c010744f>]
Code: 0f 0b 8d 00 5f fb 2f c0 90 eb fe 90 90 90 90 90 90 90 90 90

>>EIP; c011a3e7 <__out_of_line_bug+17/30> <=====

>>esi; c03e5920 <ide_hwifs+0/2af8>

Trace; c024dfc1 <ide_build_sglist+181/1a0>
Trace; c024e1b4 <ide_build_dmatable+54/1a0>
Trace; c024e6df <__ide_dma_read+3f/150>
Trace; c024a11d <do_rw_disk+1ed/740>
Trace; c01b2380 <reiserfs_find_actor+0/20>
Trace; c023fc5e <ide_wait_stat+fe/140>
Trace; c01b2380 <reiserfs_find_actor+0/20>
Trace; c0248d71 <start_request+1c1/240>
Trace; c0248eeb <ide_do_request+ab/1a0>
Trace; c024902a <do_ide_request+1a/20>
Trace; c021b186 <generic_unplug_device+36/40>
Trace; c011f3ca <__run_task_queue+5a/70>
Trace; c013f5bf <block_sync_page+1f/30>
Trace; c012c41d <___wait_on_page+bd/c0>
Trace; c012ccde <do_generic_file_read+2fe/450>
Trace; c012d0d0 <file_read_actor+0/e0>
Trace; c012d258 <generic_file_read+a8/150>
Trace; c012d0d0 <file_read_actor+0/e0>
Trace; c0143312 <kernel_read+72/80>
Trace; c01437a6 <prepare_binprm+136/150>
Trace; c0143cb5 <do_execve+e5/220>
Trace; c0105cc0 <sys_execve+50/80>
Trace; c010744f <system_call+33/38>

Code; c011a3e7 <__out_of_line_bug+17/30>
00000000 <_EIP>:
Code; c011a3e7 <__out_of_line_bug+17/30> <=====
0: 0f 0b ud2a <=====
Code; c011a3e9 <__out_of_line_bug+19/30>
2: 8d 00 lea (%eax),%eax
Code; c011a3eb <__out_of_line_bug+1b/30>
4: 5f pop %edi
Code; c011a3ec <__out_of_line_bug+1c/30>
5: fb sti
Code; c011a3ed <__out_of_line_bug+1d/30>
6: 2f das
Code; c011a3ee <__out_of_line_bug+1e/30>
7: c0 90 eb fe 90 90 90 rclb $0x90,0x9090feeb(%eax)
Code; c011a3f5 <__out_of_line_bug+25/30>
e: 90 nop
Code; c011a3f6 <__out_of_line_bug+26/30>
f: 90 nop
Code; c011a3f7 <__out_of_line_bug+27/30>
10: 90 nop
Code; c011a3f8 <__out_of_line_bug+28/30>
11: 90 nop
Code; c011a3f9 <__out_of_line_bug+29/30>
12: 90 nop
Code; c011a3fa <__out_of_line_bug+2a/30>
13: 90 nop

Martin Mokrejs <>, <>
PGP5.0i key is at
MIPS / Institute for Bioinformatics <>
GSF - National Research Center for Environment and Health
Ingolstaedter Landstrasse 1, D-85764 Neuherberg, Germany
tel.: +49-89-3187 3683 , fax: +49-89-3187 3585
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