[DRBD-user] Darn ... doing and rsync backup from drbd disk to another system ...

Ron O'Hara rono at sentuny.com.au
Tue May 4 17:17:56 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Rats... I was backing up my test system and this happened... 0.7 cvs 
from this morning. Only reading from the disk but heavy I/O to do the backup
It happened while reading the data mounted on /dev/nb0 so I suspect drbd 
is involved, although the trace doesn't seem like it.

Kernel is vanilla 2.6.4

Any thoughts on this ?

Ron

-----------[ cut here ]------------
kernel BUG at drivers/block/ll_rw_blk.c:2311!
invalid operand: 0000 [#1]
PREEMPT SMP
CPU:    0
EIP:    0060:[<c0229084>]    Not tainted
EFLAGS: 00010246
EIP is at submit_bio+0x8f/0x99
eax: 00000000   ebx: c98c27c0   ecx: 00000004   edx: 00000000
esi: 00000000   edi: c98c2840   ebp: c98c27c0   esp: c82bbba0
ds: 007b   es: 007b   ss: 0068
Process rsync (pid: 7621, threadinfo=c82ba000 task=c9e898c0)
Stack: c0165696 00001000 c10e7d38 c018321a 00000000 c98c27c0 c0183657 
00000000
       c98c27c0 00001000 00000000 000000d0 cfcb0500 00000001 00000004 
00000004
       00001dae 00000000 00000640 00000000 00000004 0000000a c2aa5314 
00000010
Call Trace:
 [<c0165696>] bio_add_page+0x34/0x38
 [<c018321a>] mpage_bio_submit+0x23/0x32
 [<c0183657>] do_mpage_readpage+0x2f7/0x49e
 [<c0142146>] add_to_page_cache+0x5c/0x12c
 [<c018393c>] mpage_readpages+0x13e/0x16b
 [<c01a1d12>] ext3_get_block+0x0/0xae
 [<c01483ab>] read_pages+0x135/0x13e
 [<c01a1d12>] ext3_get_block+0x0/0xae
 [<c014659d>] __alloc_pages+0xa7/0x34b
 [<c0148729>] do_page_cache_readahead+0x126/0x1c5
 [<c014892d>] page_cache_readahead+0x165/0x191
 [<c0142a49>] do_generic_mapping_read+0xe1/0x3d7
 [<c0142d3f>] file_read_actor+0x0/0xfe
 [<c0143029>] __generic_file_aio_read+0x1ec/0x21e
 [<c0142d3f>] file_read_actor+0x0/0xfe
 [<c01430b5>] generic_file_aio_read+0x5a/0x74
 [<c015fa9d>] do_sync_read+0x8b/0xb7
 [<c01740e3>] do_select+0x1d0/0x2fa
 [<c012e2c7>] update_wall_time+0xd/0x36
 [<c012e6fa>] do_timer+0xc0/0xc5
 [<c0111e15>] timer_interrupt+0x7a/0x16f
 [<c015fb79>] vfs_read+0xb0/0x119
 [<c015fdf4>] sys_read+0x42/0x63
 [<c010b47b>] syscall_call+0x7/0xb

Code: 0f 0b 07 09 2f c9 36 c0 eb 86 53 8b 5c 24 08 8b 53 18 85 d2
 




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