Messages in this thread | | | Date | Fri, 28 Dec 2001 08:23:43 +0200 (SAST) | From | Zwane Mwaikambo <> | Subject | Re: BUG and Kernel Panic on 2.5.2-pre1 with loop and cdrom |
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Here is the floppy case with some debugging stuff put in. My kernel log is first, orignal oops second and decoded oops last. Triggered with mount /dev/fd0 /floppy -o loop. The ksymoops was run on the machine *right* after the oops (it was still alive). If you want me to track down where the bh->b_size and nr_sectors began to differ i can put extra checks further down.
Thanks, Zwane Mwaikambo
Dec 31 02:09:27 mondecino kernel: end_bio_bh_io_sync: nr_sectors=0 bh->b_size=2 <== the values before the BUG check Dec 31 02:09:27 mondecino kernel: kernel BUG at ll_rw_blk.c:1367! Dec 31 02:09:27 mondecino kernel: invalid operand: 0000 Dec 31 02:09:27 mondecino kernel: CPU: 0 Dec 31 02:09:27 mondecino kernel: EIP: 0010:[end_bio_bh_io_sync+77/112] Not tainted Dec 31 02:09:27 mondecino kernel: EIP: 0010:[<c020c08d>] Not tainted Dec 31 02:09:27 mondecino kernel: EFLAGS: 00010282 Dec 31 02:09:27 mondecino kernel: eax: 00000020 ebx: c8a92384 ecx: c0304d24 edx: 00002b24 Dec 31 02:09:27 mondecino kernel: esi: 00000000 edi: cb6fcc64 ebp: 00000000 esp: c8bfbf88 Dec 31 02:09:27 mondecino kernel: ds: 0018 es: 0018 ss: 0018 Dec 31 02:09:27 mondecino kernel: Process loop0 (pid: 727, stackpage=c8bfb000) Dec 31 02:09:27 mondecino kernel: Stack: c02e1c63 00000557 cb6fcc64 caf4ac24 c9116000 c014dd33 cb6fcc64 00000000 Dec 31 02:09:27 mondecino kernel: cc9171f8 cb6fcc64 00000001 00000000 cc9187c8 cc91879d 00000000 c9116000 Dec 31 02:09:27 mondecino kernel: caf4ac24 cb6fcc64 c8fcbf30 00000000 00000000 00000000 00000f00 c8fcbf30 Dec 31 02:09:27 mondecino kernel: Call Trace: [bio_endio+35/48] [sound:num_midis_Rsmp_a1eae7cf+815152/51255793] [sound:nu m_midis_Rsmp_a1eae7cf+820736/51250209] [sound:num_midis_Rsmp_a1eae7cf+820693/51250252] [kernel_thread+38/48] Dec 31 02:09:27 mondecino kernel: Call Trace: [<c014dd33>] [<cc9171f8>] [<cc9187c8>] [<cc91879d>] [<c0107286>] Dec 31 02:09:27 mondecino kernel: [sound:num_midis_Rsmp_a1eae7cf+814520/51256425] Dec 31 02:09:27 mondecino kernel: [<cc916f80>] Dec 31 02:09:27 mondecino kernel: Dec 31 02:09:27 mondecino kernel: Code: 0f 0b 5e 58 8b 47 0c 83 e0 01 50 53 ff 53 34 57 e8 8e 14 f4
invalid operand: 0000 CPU: 0 EIP: 0010:[<c020c08d>] Not tainted EFLAGS: 00010282 eax: 00000020 ebx: c8a92384 ecx: c0304d24 edx: 00002b24 esi: 00000000 edi: cb6fcc64 ebp: 00000000 esp: c8bfbf88 ds: 0018 es: 0018 ss: 0018 Process loop0 (pid: 727, stackpage=c8bfb000) Stack: c02e1c63 00000557 cb6fcc64 caf4ac24 c9116000 c014dd33 cb6fcc64 00000000 cc9171f8 cb6fcc64 00000001 00000000 cc9187c8 cc91879d 00000000 c9116000 caf4ac24 cb6fcc64 c8fcbf30 00000000 00000000 00000000 00000f00 c8fcbf30 Call Trace: [<c014dd33>] [<cc9171f8>] [<cc9187c8>] [<cc91879d>] [<c0107286>] [<cc916f80>]
>>EIP; c020c08d <end_bio_bh_io_sync+4d/70> <===== Trace; c014dd33 <bio_endio+23/30> Trace; cc9171f8 <[loop]loop_thread+278/2d0> Trace; cc9187c8 <[loop].text.end+689/8a1> Trace; cc91879d <[loop].text.end+65e/8a1> Trace; c0107286 <kernel_thread+26/30> Trace; cc916f80 <[loop]loop_thread+0/2d0> Code; c020c08d <end_bio_bh_io_sync+4d/70> 00000000 <_EIP>: Code; c020c08d <end_bio_bh_io_sync+4d/70> <===== 0: 0f 0b ud2a <===== Code; c020c08f <end_bio_bh_io_sync+4f/70> 2: 5e pop %esi Code; c020c090 <end_bio_bh_io_sync+50/70> 3: 58 pop %eax Code; c020c091 <end_bio_bh_io_sync+51/70> 4: 8b 47 0c mov 0xc(%edi),%eax Code; c020c094 <end_bio_bh_io_sync+54/70> 7: 83 e0 01 and $0x1,%eax Code; c020c097 <end_bio_bh_io_sync+57/70> a: 50 push %eax Code; c020c098 <end_bio_bh_io_sync+58/70> b: 53 push %ebx Code; c020c099 <end_bio_bh_io_sync+59/70> c: ff 53 34 call *0x34(%ebx) Code; c020c09c <end_bio_bh_io_sync+5c/70> f: 57 push %edi Code; c020c09d <end_bio_bh_io_sync+5d/70> 10: e8 8e 14 f4 00 call f414a3 <_EIP+0xf414a3> c114d530 <_end+d6c100/c444c30>
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