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Subjectkernel 2.4.4: BUG in ll_rw_blk.c?
	I am running a 2.4.4 kernel compiled from the sources in the
debian kernel-source package (it only includes a couple of small patches
taken from pre and ac, as far as I can tell) and run in the following
oopses, always while compiling the kernel itself. Here I included three
different oopses, and the computer had been rebooted between them (for
different reasons). Is this a known bug? Any fix available for it?
The computer is a 500MHz PIII, with a 440BX chipset on the motherboard,
more data available if required (just ask) running debian potato. The only
"nonstandard" system component is a 2.1.3 libc6 compiled with the 2.4.4
kernel headers, to be able to use large files. Here come the
(decoded) oopses:

May 7 14:57:11 stampace kernel: elevator returned crap (-1072325408)
May 7 14:57:11 stampace kernel: kernel BUG at ll_rw_blk.c:778!
May 7 14:57:11 stampace kernel: invalid operand: 0000
May 7 14:57:11 stampace kernel: CPU: 0
May 7 14:57:11 stampace kernel: EIP: 0010:[__make_request+950/1696]
May 7 14:57:11 stampace kernel: EFLAGS: 00010082
May 7 14:57:11 stampace kernel: eax: 0000001f ebx: 00000000 ecx: ccdcc000 edx: c0229328
May 7 14:57:11 stampace kernel: esi: cc147840 edi: 00000008 ebp: c02af660 esp: cc257e08
May 7 14:57:11 stampace kernel: ds: 0018 es: 0018 ss: 0018
May 7 14:57:11 stampace kernel: Process cpp (pid: 18004, stackpage=cc257000)
May 7 14:57:11 stampace kernel: Stack: c01f801f c01f8262 0000030a 000000ff cc147840 00000001 0000000c c02ac9a0
May 7 14:57:11 stampace kernel: c02af688 0000000c 00001000 00000246 00002000 c02af690 c1472d80 c02af688
May 7 14:57:11 stampace kernel: 000000ff 00000000 00000000 012a19c8 00000000 c0158f81 c02af660 00000000
May 7 14:57:11 stampace kernel: Call Trace: [generic_make_request+293/308] [submit_bh+87/116] [block_read_full_page+525/548] [add_to_page_cache_unique+198/208] [ext2_readpage+15/20] [ext2_get_block+0/1168] [generic_file_readahead+548/668]
May 7 14:57:11 stampace kernel: [do_generic_file_read+838/1292] [generic_file_read+91/120] [file_read_actor+0/84] [sys_read+150/204] [system_call+51/56]
May 7 14:57:11 stampace kernel:
May 7 14:57:11 stampace kernel: Code: 0f 0b 83 c4 0c 83 7c 24 38 00 74 12 8b 44 24 38 89 44 24 40

May 8 15:35:06 stampace kernel: elevator returned crap (-1072325408)
May 8 15:35:06 stampace kernel: kernel BUG at ll_rw_blk.c:778!
May 8 15:35:06 stampace kernel: invalid operand: 0000
May 8 15:35:06 stampace kernel: CPU: 0
May 8 15:35:06 stampace kernel: EIP: 0010:[__make_request+950/1696]
May 8 15:35:06 stampace kernel: EFLAGS: 00010082
May 8 15:35:06 stampace kernel: eax: 0000001f ebx: 00000000 ecx: c33f2000 edx: c0227b48
May 8 15:35:06 stampace kernel: esi: c3d8a6e0 edi: 00000008 ebp: c02ad660 esp: c6f97e08
May 8 15:35:06 stampace kernel: ds: 0018 es: 0018 ss: 0018
May 8 15:35:06 stampace kernel: Process cpp (pid: 18605, stackpage=c6f97000)
May 8 15:35:06 stampace kernel: Stack: c01f7957 c01f7b62 0000030a 000000ff c3d8a6e0 00000001 0000000c c02aa9a0
May 8 15:35:06 stampace kernel: c02ad688 0000000c 00001000 00000246 00002000 c02ad690 c1470a80 c02ad688
May 8 15:35:06 stampace kernel: 000000ff 00000000 00000000 00cc8ca0 00000000 c0158f81 c02ad660 00000000
May 8 15:35:06 stampace kernel: Call Trace: [generic_make_request+293/308] [submit_bh+87/116] [block_read_full_page+525/548] [add_to_page_cache_unique+198/208] [ext2_readpage+15/20] [ext2_get_block+0/1168] [generic_file_readahead+548/668]
May 8 15:35:06 stampace kernel: [do_generic_file_read+838/1292] [generic_file_read+91/120] [file_read_actor+0/84] [sys_read+150/204] [system_call+51/56]
May 8 15:35:06 stampace kernel:
May 8 15:35:06 stampace kernel: Code: 0f 0b 83 c4 0c 83 7c 24 38 00 74 12 8b 44 24 38 89 44 24 40

May 9 16:15:22 stampace kernel: elevator returned crap (-1072325408)
May 9 16:15:22 stampace kernel: kernel BUG at ll_rw_blk.c:778!
May 9 16:15:22 stampace kernel: invalid operand: 0000
May 9 16:15:22 stampace kernel: CPU: 0
May 9 16:15:22 stampace kernel: EIP: 0010:[__make_request+950/1696]
May 9 16:15:22 stampace kernel: EFLAGS: 00010082
May 9 16:15:22 stampace kernel: eax: 0000001f ebx: 00000000 ecx: c289a000 edx: c0227b48
May 9 16:15:22 stampace kernel: esi: cd389ae0 edi: 00000008 ebp: c02ad660 esp: c3b09e08
May 9 16:15:22 stampace kernel: ds: 0018 es: 0018 ss: 0018
May 9 16:15:22 stampace kernel: Process cpp (pid: 13267, stackpage=c3b09000)
May 9 16:15:22 stampace kernel: Stack: c01f7957 c01f7b62 0000030a 000000ff cd389ae0 00000001 0000000c c02aa9a0
May 9 16:15:22 stampace kernel: c02ad688 0000000c 00001000 00000246 00002000 c02ad690 c146e240 c02ad688
May 9 16:15:22 stampace kernel: 000000ff 00000000 00000000 0108d270 00000000 c0158f81 c02ad660 00000000
May 9 16:15:22 stampace kernel: Call Trace: [generic_make_request+293/308] [submit_bh+87/116] [block_read_full_page+525/548] [add_to_page_cache_unique+198/208] [ext2_readpage+15/20] [ext2_get_block+0/1168] [generic_file_readahead+548/668]
May 9 16:15:22 stampace kernel: [do_generic_file_read+838/1292] [generic_file_read+91/120] [file_read_actor+0/84] [sys_read+150/204] [system_call+51/56]
May 9 16:15:22 stampace kernel:
May 9 16:15:22 stampace kernel: Code: 0f 0b 83 c4 0c 83 7c 24 38 00 74 12 8b 44 24 38 89 44 24 40

Bye, thanks
Giacomo Mulas

_________________________________________________________________

Giacomo Mulas <gmulas@ca.astro.it, giacomo.mulas@tin.it>
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OSSERVATORIO ASTRONOMICO
Str. 54, Loc. Poggio dei Pini * 09012 Capoterra (CA)

Tel.: +39 070 71180 216 Fax : +39 070 71180 222
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