[linux-lvm] Xen, LVM, Snapshots Random Kernel Panics
Norbert Phillipps
nphillipps at smytheonline.com
Mon Jul 30 17:22:46 UTC 2007
Hi all,
I'm currently running lvm 2.02.25, and device-mapper 1.02.19 on
kernel 2.6.20.13 with Xen 3.1 on Gentoo Linux
I randomly have kernel panics when creating snapshots and also when
removing snapshots.
Attached is one of the kernel panics that I have seen while creating
a snapshot. I'm trying to find a stable combination of kernel, lvm,
and Xen version.
Thanks!
------------[ cut here ]------------
kernel BUG at mm/mempool.c:121!
invalid opcode: 0000 [#1]
SMP
Modules linked in: ipv6 nfs lockd nfs_acl sunrpc bridge llc
dm_snapshot dm_mod aoe qla2xxx i2c_i801 i2c_core firmware_class e1000
uhci_hcd evdev
CPU: 0
EIP: 0061:[<c013d66b>] Not tainted VLI
EFLAGS: 00010282 (2.6.20.14-xen #5)
EIP is at mempool_resize+0x137/0x16c
eax: ec5a6900 ebx: ffffffe0 ecx: 000000d0 edx: ffffffe0
esi: e9395b00 edi: f07f5080 ebp: ec5a6900 esp: e8317d5c
ds: 007b es: 007b ss: 0069
Process vgchange (pid: 8179, ti=e8316000 task=e873da70 task.ti=e8316000)
Stack: 00692000 000000d0 ffffffe0 80000000 ffffffe0 e9395b00 f07f5080
00000000
ee24a3c8 00000000 e8d289c0 ee24a5cd e873da70 c012d034
e8317d94 e8317d94
c0156c7e e93962c0 e9395b00 f07f5080 ee06ebf1 f07f5080
e93964c0 00000000
Call Trace:
[<ee24a3c8>] resize_pool+0x47/0xb2 [dm_mod]
[<ee24a5cd>] kcopyd_client_destroy+0x84/0xc9 [dm_mod]
[<c012d034>] autoremove_wake_function+0x0/0x37
[<c0156c7e>] kfree+0xe/0x7d
[<ee06ebf1>] snapshot_dtr+0x85/0xcf [dm_snapshot]
[<ee246d73>] dm_table_put+0x55/0xbd [dm_mod]
[<ee245b0e>] dm_put+0x6f/0x110 [dm_mod]
[<ee249561>] dev_remove+0x76/0xa4 [dm_mod]
[<ee249b48>] ctl_ioctl+0x1eb/0x255 [dm_mod]
[<c0107457>] monotonic_clock+0x37/0x74
[<ee2494eb>] dev_remove+0x0/0xa4 [dm_mod]
[<c0164874>] do_ioctl+0x64/0x6d
[<c01648cd>] vfs_ioctl+0x50/0x278
[<c0164b29>] sys_ioctl+0x34/0x53
[<c0104c34>] syscall_call+0x7/0xb
[<c0320033>] unix_dgram_sendmsg+0x2f9/0x48a
=======================
Code: 8b 45 08 3b 45 04 0f 8d 4c ff ff ff 8b 14 24 89 e8 e8 c4 93 1e
00 8b 55 10 8b 44 24 04 ff 55 14 89 c3 85 c0 75 bf e9 37 ff ff ff
<0f> 0b eb fe 8b 14 24 89 e8 e8 a1 93 1e 00 8b 55 10 89 d8 ff 55
EIP: [<c013d66b>] mempool_resize+0x137/0x16c SS:ESP 0069:e8317d5c
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