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[linux-lvm] LVM Oops





Hello!

Oops happened after several days of normal operation diring snapshot.


Linux backup-db2 2.4.27 #1 SMP Fri Oct 22 05:22:55 EST 2004 i686 unknown unknown GNU/Linux


Filesystem - reiserfs.

Logical Volume Manager 1.0.8
Heinz Mauelshagen, Sistina Software  17/11/2003 (IOP 10)


Unable to handle kernel NULL pointer dereference at virtual address 00000004
c02adbea
*pde = 126d9001
Oops: 0002
CPU: 0
EIP: 0010:[<c02adbea>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010202
eax: f8c3b4b0 ebx: fb20bde8 ecx: f89edc38 edx: 00000000
esi: 33dbdf00 edi: 00000001 ebp: 00000803 esp: c5bc3dac
ds: 0018 es: 0018 ss: 0018
Process kupdated (pid: 9, stackpage=c5bc3000)
Stack: 00000038 00000803 00000000 eae59400 f4ff7800 f4ff7970 00002000 c02aa5fa
c5bc3e00 c5bc3df8 33dbc580 f4ff7800 f73a9000 00000400 f77db240 eae59570
f73a9000 33dbc580 0002cdd0 33dbdf38 33dbdf38 08030803 00003a06 f2046d00
Call Trace: [<c02aa5fa>] [<c02aa727>] [<c022a4be>] [<c022a59e>] [<c02b8d08>]
[<c013ebdc>] [<c013ece5>] [<c0142b48>] [<c0142e41>] [<c01072b6>] [<c0142d50>]
[<c0105000>] [<c01057ae>] [<c0142d50>]
Code: 89 42 04 8b 03 89 48 04 89 01 89 59 04 89 0b 89 ca 90 8d 74



>>EIP; c02adbea <lvm_snapshot_remap_block+aa/100> <=====


Trace; c02aa5fa <lvm_map+36a/480>
Trace; c02aa727 <lvm_make_request_fn+17/30>
Trace; c022a4be <generic_make_request+be/140>
Trace; c022a59e <submit_bh+5e/130>
Trace; c02b8d08 <netif_receive_skb+188/1c0>
Trace; c013ebdc <write_locked_buffers+2c/40>
Trace; c013ece5 <write_some_buffers+f5/140>
Trace; c0142b48 <sync_old_buffers+78/b0>
Trace; c0142e41 <kupdate+f1/1c0>
Trace; c01072b6 <ret_from_fork+6/20>
Trace; c0142d50 <kupdate+0/1c0>
Trace; c0105000 <_stext+0/0>
Trace; c01057ae <arch_kernel_thread+2e/40>
Trace; c0142d50 <kupdate+0/1c0>

Code;  c02adbea <lvm_snapshot_remap_block+aa/100>
00000000 <_EIP>:
Code;  c02adbea <lvm_snapshot_remap_block+aa/100>   <=====
   0:   89 42 04                  mov    %eax,0x4(%edx)   <=====
Code;  c02adbed <lvm_snapshot_remap_block+ad/100>
   3:   8b 03                     mov    (%ebx),%eax
Code;  c02adbef <lvm_snapshot_remap_block+af/100>
   5:   89 48 04                  mov    %ecx,0x4(%eax)
Code;  c02adbf2 <lvm_snapshot_remap_block+b2/100>
   8:   89 01                     mov    %eax,(%ecx)
Code;  c02adbf4 <lvm_snapshot_remap_block+b4/100>
   a:   89 59 04                  mov    %ebx,0x4(%ecx)
Code;  c02adbf7 <lvm_snapshot_remap_block+b7/100>
   d:   89 0b                     mov    %ecx,(%ebx)
Code;  c02adbf9 <lvm_snapshot_remap_block+b9/100>
   f:   89 ca                     mov    %ecx,%edx
Code;  c02adbfb <lvm_snapshot_remap_block+bb/100>
  11:   90                        nop
Code;  c02adbfc <lvm_snapshot_remap_block+bc/100>
  12:   8d 74 00 00               lea    0x0(%eax,%eax,1),%esi


1 error issued. Results may not be reliable.


--
Senior Systems Administrator, NiuTech LLC.
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