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Subject2.1.97 oops
In 2.1.97
I was running bonnie on my harddrive at the time when it locked up, SysRQ
was worning, but since the lockup I didn't see any harddrive access, it did
not appear to sync or remount the file system as readonly I did write down
some of the current and registers.

EIP: 0010:[<c0126b2f>] EFLAGS: 00000202
EAX: 00001027 EBX: c3062a20 ECX: c01f13ac EDX: c3062a20
ESI: 00001a26 EDI: 00000002 EBP: bffffd90 DS: 0018 ES: 0018

I listed a few of them on the computer and only EIP, EFLAGS and EAX were
changing, I only wrote down the EIP. Only the last three values were
changing.
EIP: 0010:[<c0126b2f>]
aa0
b2f
aa3
a96
b31
b2f

It appeared to come up with only those values.
In the System.map,
c0126108 T brw_page
c0126478 T mark_buffer_uptodate
c01264cc T generic_readpage
c0126558 t grow_buffers
c0126644 T try_to_free_buffer
c012685c T show_buffers
c0126938 T buffer_init
c0126a04 T wakeup_bdflush
c0126a60 T sync_old_buffers
c0126ba0 T sys_bdflush
c0126c38 T bdflush
c0126e50 T lookup_vfsmnt
c0126e98 t add_vfsmnt
c0126fcc t remove_vfsmnt

I rebooted with SysRQ and ran 2.1.97 again, in e2fsck it gave an oops, from
the ksymoops output it looks like I must have copied an address wrong,
sorry, if the kernel was running right I wouldn't have had to copy by hand :)

Using `/mnt/hda1/2.1.97-map' to map addresses to symbols.

>>EIP: c73dc2c6 cannot be resolved
Trace: c0106000 <this_must_match_init_task>
Trace: c0107f9c <this_must_match_init_task+1f9c/2000>
Trace: c0107f9c <this_must_match_init_task+1f9c/2000>
Trace: c0107fe4 <this_must_match_init_task+1fe4/2000>
Trace: c0109880 <system_call+38/3c>
Trace: c0107fe4 <this_must_match_init_task+1fe4/2000>
Trace: c0108073 <cpu_idle+7/18>
Trace: c010025b <L6>
Code:
Code: 1b 00 sbbl (%eax),%eax
Code: 00 04 00 addb %al,(%eax,%eax,1)
Code: 00 13 addb %dl,(%ebx)
Code: 08 13 orb %dl,(%ebx)
Code: 08 02 orb %al,(%edx)
Code: 00 36 addb %dh,(%esi)
Code: 00 60 c2 addb %ah,0xffffffc2(%eax)
Code: 3d c7 09 00 00 cmpl $0x9c7,%eax
Code: 90 nop
Code: 90 nop
Code: 90 nop
Cannot read eip address from EIP: line. Is this a valid oops file?

date: 04-18-1998,15:15 kernel 2.1.97
Unable to handle kernel NULL pointer dereference at virtual address 00000000
current->tss.cr3 = 00101000, %cr3 = 00101000
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c73dc2c6>]
EFLAGS: 00010246
eax: 00000000 ebx: 00000000 ecx: c0106000 edx: 00000023
esi: 00000000 edi: 0001c7fc ebp: c7fcbf90 esp: c0107f7c
ds: 0018 es: 0018 ss: 0018
Process swapper (pid: 0, procss nr: 0, stackpage=c0107000)
Stack: c0106000 00000000 c7fcbf90 c0107f9c 00000000 00000023 c0106000 00000000
c59da960 c0107fe4 c0109880 00000f00 c0108084 00000000 c0107fe4 c0106000
00009000 00000070 00000018 00000018 00000070 c0108073 00000010 00000246
Call Trac: [<c0106000>] [<c0107f9c>] [<c0106000>] [<c0107fe4>] [<c0109880>]
[<c0106000>] [<c0108073>] [<c010025b>]
Code: 1b 00 00 04 00 00 13 08 13 08 02 00 36 00 60 c2 3d c7 09 00
Kernel panic: Attempted to kill the idle task!
In swapper task - not syncing
SysRq: Emergency Sync
Syncing device 08:13 ... OK
Done.

AMD K5
Tyan 1653D, Tomcat III
Intel 82439HX, 82371SB chipset
128 megs memory,
NCR53C810 using BSD ported driver
gcc 2.7.2.3

--
+---------------------------------+
| David Fries |
| dfries@mail.win.org |
+---------------------------------+
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