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kernel BUG at /usr/local/src/xen-3.1.0-src/linux-2.6.18-xen/mm/slab.c:595!
invalid opcode: 0000 [#1]
SMP
Modules linked in: xt_physdev iptable_filter ip_tables x_tables button ac battery loop via_agp agpgart dm_mirror dm_snapshot dm_mod ehci_hcd uhci_hcd thermal processor fan
CPU:    0
EIP:    0061:[<c016bdb8>]    Not tainted VLI
EFLAGS: 00010202   (2.6.18-xen0 #2)
EIP is at kmem_cache_free+0xe8/0x100
eax: 0000082c   ebx: 248b0819   ecx: 00000000   edx: c136d4a0
esi: ee76b938   edi: c0a3d9c0   ebp: de52dd3c   esp: de52dd30
ds: 007b   es: 007b   ss: 0069
Process lvremove (pid: 1253, ti=de52c000 task=c23dda90 task.ti=de52c000)
Stack: 248b0819 ee76b938 c0a3d9c0 de52dd64 ee06ebd2 c0a3d9c0 da4a5b00 ec8201e0
       00004927 00008000 ec8201a0 c04d26c0 ee544040 de52dd80 ee06ec95 eca34260
       eca332e0 ee544040 00000000 00000000 de52dd98 ee062cba ee544040 eca332e0
Call Trace:
 [<c0105e99>] show_stack_log_lvl+0xa9/0xd0
 [<c01060c4>] show_registers+0x1b4/0x240
 [<c0106289>] die+0x139/0x320
 [<c01064ff>] do_trap+0x8f/0xd0
 [<c0106da0>] do_invalid_op+0xa0/0xb0
 [<c01059c3>] error_code+0x2b/0x30
 [<ee06ebd2>] exit_exception_table+0x42/0x70 [dm_snapshot]
 [<ee06ec95>] snapshot_dtr+0x95/0xe0 [dm_snapshot]
 [<ee062cba>] dm_table_put+0x6a/0xf0 [dm_mod]
 [<ee061bed>] dm_put+0x8d/0x180 [dm_mod]
 [<ee065b5b>] dev_remove+0x8b/0xd0 [dm_mod]
 [<ee0662ac>] ctl_ioctl+0x25c/0x2d0 [dm_mod]
 [<c0183c39>] do_ioctl+0x89/0xa0
 [<c0183ca7>] vfs_ioctl+0x57/0x2b0
 [<c0183f41>] sys_ioctl+0x41/0x60
 [<c0105817>] syscall_call+0x7/0xb
Code: 58 01 75 df 80 38 00 74 da e8 85 16 11 00 eb d3 8b 45 08 89 da e8 e9 fc ff ff 8b 03 eb 94 0f 0b 6a 0d e0 c0 3e c0 e9 54 ff ff ff <0f> 0b 53 02 e0 c0 3e c0 e9 3b ff ff ff 8b 52 0c e9 29 ff ff ff
EIP: [<c016bdb8>] kmem_cache_free+0xe8/0x100 SS:ESP 0069:de52dd30