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SubjectRe: 2.4.22-pre3 and reiserfs boot problem
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On Thu, 2003-07-10 at 16:39, Carl-Daniel Hailfinger wrote:

> Was there any disk activity after it became unresponsive? If not, please
> provide a (partially) decoded SysRq-T. I'm only interested in the decoded
> stack trace of the hung process (it should have a "D" after the process name).

Right, I have collected the details that was asked for. Carl-Daniel
suggested a way of tricking the system into doing an fsck without
tampering with the filesystem itself. Please find below the data I
copied out and decoded. If there is anything else I can do, let me know.
If there is any data about my system you require, let me know.

Output from Alt SysRq P:

Pid: 160, comm: fsck.ext3
EIP: 0010:[<c01b0f43>] CPU: 0 EFLAGS: 00000246 Not Tainted
EAX: 00000000 EBX: 00000000 ECX: c0338c00 EDX: 00000007
ESI: c0338c00 EDI: eee68000 EBP: eee69de8 DS: 0018 ES: 0018
CR0: 80050033 CR2: 400dcff0 CR3: 2ee6b000 CR4: 000006d0

Call trace: [<c01b1584>] [<c01b1bfb>] [<c01b1cca>] [<c0141643>]
[<c014178f>] [<c01417a4>] [<c0141887>] [<c01464e1>] [<c0141b61>]
[<c0108f83>]

Output from Alt SysRq T:

fsck.ext3 D current 3808 160 149 (NOTLB)
Call Trace: [<c014178f>] [<c01417a4>] [<c0141887>] [<c01464e1>]
[<c0141b61>] [<c0108f83>]


ksymoops 2.4.8 on i686 2.4.22-pre3-ac1. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.22-pre3-ac1/ (default)
-m /boot/System.map-2.4.22-pre3-ac1 (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Warning (compare_maps): mismatch on symbol zeroes , ipsec says
f23fdf00, /lib/modules/2.4.22-pre3-ac1/kernel/net/ipsec/ipsec.o says
f23fdde0. Ignoring
/lib/modules/2.4.22-pre3-ac1/kernel/net/ipsec/ipsec.o entry
Pid: 160, comm: fsck.ext3
EIP: 0010:[<c01b0f43>] CPU: 0 EFLAGS: 00000246 Not Tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EAX: 00000000 EBX: 00000000 ECX: c0338c00 EDX: 00000007
ESI: c0338c00 EDI: eee68000 EBP: eee69de8 DS: 0018 ES: 0018
Warning (Oops_set_regs): garbage 'DS: 0018 ES: 0018' at end of register
line ignored
CR0: 80050033 CR2: 400dcff0 CR3: 2ee6b000 CR4: 000006d0
Call trace: [<c01b1584>] [<c01b1bfb>] [<c01b1cca>] [<c0141643>]
[<c014178f>] [<c01417a4>] [<c0141887>] [<c01464e1>] [<c0141b61>]
[<c0108f83>]
Warning (Oops_read): Code line not seen, dumping what data is available


>>EIP; c01b0f43 <__get_request_wait+ae/f6> <=====

>>ECX; c0338c00 <ide_hwifs+c0/2af8>
>>ESI; c0338c00 <ide_hwifs+c0/2af8>
>>EDI; eee68000 <_end+2eb17bf4/304bcc54>
>>EBP; eee69de8 <_end+2eb199dc/304bcc54>

Trace; c01b1584 <__make_request+167/71a>
Trace; c01b1bfb <generic_make_request+c4/13a>
Trace; c01b1cca <submit_bh+59/a0>
Trace; c0141643 <write_locked_buffers+2a/36>
Trace; c014178f <write_some_buffers+140/142>
Trace; c01417a4 <write_unlocked_buffers+13/1d>
Trace; c0141887 <sync_buffers+1a/75>
Trace; c01464e1 <__block_fsync+2f/6c>
Trace; c0141b61 <sys_fsync+93/de>
Trace; c0108f83 <system_call+33/38>


4 warnings issued. Results may not be reliable.



--
Anders Karlsson <anders@trudheim.com>
Trudheim Technology Limited
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