[Xen-devel] kernel BUG at drivers/xen/blkback/blkback-pagemap.c:65!

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

Xen 3.3-testing @ changeset 18651, 64bit
dom0 2.6.18.8 @ changeset 888, PAE

Files: http://theshore.net/~caker/xen/BUGS/1.22/

clearing empty pagemap 311
------------[ cut here ]------------
kernel BUG at drivers/xen/blkback/blkback-pagemap.c:65!
invalid opcode: 0000 [#1]
SMP
Modules linked in: e1000e e1000
CPU:    0
EIP:    0061:[<c0390507>]    Not tainted VLI
EFLAGS: 00010292   (2.6.18.8-888-1 #1)
EIP is at blkback_pagemap_clear+0x57/0xa0
eax: 0000001e   ebx: 00000137   ecx: 00000000   edx: fdb4e000
esi: d24f4ea0   edi: c0691a14   ebp: d24f4e94   esp: cdc0fbd4
ds: 007b   es: 007b   ss: 0069
Process blkback.166.xvd (pid: 30401, ti=cdc0e000 task=cb028570 
task.ti=cdc0e000)
Stack: c05441a0 00000137 00000003 d23463f0 00000002 0000023e c038e00d 
cdc0fbf8
       00000135 d2b65000 00000000 00000000 00000000 00000010 00000000 
d2b66000
       00000000 00000000 00000000 0000037b 00003b18 00005617 00000000 
00000000
Call Trace:
 [<c038e00d>] fast_flush_area+0xad/0x130
 [<c0439774>] dm_request+0xc4/0xf0
 [<c02eda83>] generic_make_request+0x173/0x210
 [<c03841ca>] evtchn_do_upcall+0x10a/0x200
 [<c02edb89>] submit_bio+0x69/0x120
 [<c0174217>] bio_add_page+0x37/0x50
 [<c038e58d>] dispatch_rw_block_io+0x1fd/0x730
 [<c04fcd4c>] schedule+0x33c/0xa00
 [<c02ea84a>] elv_next_request+0x12a/0x220
 [<c02ef133>] __generic_unplug_device+0x33/0x40
 [<c02ef5e5>] generic_unplug_device+0x15/0x50
 [<c043a07a>] dm_table_unplug_all+0x2a/0x40
 [<c038eb73>] blkif_schedule+0xb3/0x620
 [<c04fcd4c>] schedule+0x33c/0xa00
 [<c038eac0>] blkif_schedule+0x0/0x620
 [<c0136b62>] kthread+0xc2/0x100
 [<c0136aa0>] kthread+0x0/0x100
 [<c0102c45>] kernel_thread_helper+0x5/0x10
Code: 1a 69 c0 7d 4d 8d 04 5b bf 08 1a 69 c0 8d 2c 82 b9 0c 00 00 00 89 
ee f3 a6 75 18 89 5c 24 04 c7 04 24 a0 41 54 c0 e8 f9 13 d9 ff <0f> 0b 
41 00 50 65 55 c0 b9 03 00 00 00 89 ef 31 c0 f3 ab 8b 5c
EIP: [<c0390507>] blkback_pagemap_clear+0x57/0xa0 SS:ESP 0069:cdc0fbd4

-Chris


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