[CentOS-virt] Kernel BUG

[Gilberto Nunes]

Hi

Every time I up a VM with Xen 3.0.3 on CentOS 5.4 I get this messages on kernel:

Apr  5 09:03:07 zebra kernel: BUG: warning at lib/kref.c:32/kref_get()
(Not tainted)
Apr  5 09:03:07 zebra kernel:
Apr  5 09:03:07 zebra kernel: Call Trace:
Apr  5 09:03:07 zebra kernel:  [<ffffffff8023824d>] kref_get+0x38/0x3d
Apr  5 09:03:07 zebra kernel:  [<ffffffff8025a440>] kobject_get+0x12/0x17
Apr  5 09:03:07 zebra kernel:  [<ffffffff8024b57f>] blk_get_queue+0x1f/0x26
Apr  5 09:03:07 zebra kernel:  [<ffffffff887198f7>]
:blkbk:dispatch_rw_block_io+0x4db/0x5a2
Apr  5 09:03:07 zebra kernel:  [<ffffffff80340368>] __next_cpu+0x19/0x28
Apr  5 09:03:07 zebra kernel:  [<ffffffff8026082b>] error_exit+0x0/0x6e
Apr  5 09:03:07 zebra kernel:  [<ffffffff8028792a>]
find_busiest_group+0x1db/0x44d
Apr  5 09:03:07 zebra kernel:  [<ffffffff802883c0>] dequeue_task+0x18/0x37
Apr  5 09:03:07 zebra kernel:  [<ffffffff80288407>] deactivate_task+0x28/0x5f
Apr  5 09:03:07 zebra kernel:  [<ffffffff8026ef47>] monotonic_clock+0x35/0x7b
Apr  5 09:03:07 zebra kernel:  [<ffffffff80262dd3>] thread_return+0x6c/0x113
Apr  5 09:03:07 zebra kernel:  [<ffffffff80340af5>] kobject_cleanup+0x39/0x7e
Apr  5 09:03:07 zebra kernel:  [<ffffffff88719d2c>]
:blkbk:blkif_schedule+0x36e/0x456
Apr  5 09:03:07 zebra kernel:  [<ffffffff887199be>]
:blkbk:blkif_schedule+0x0/0x456
Apr  5 09:03:07 zebra kernel:  [<ffffffff8029bdab>]
keventd_create_kthread+0x0/0xc4
Apr  5 09:03:07 zebra kernel:  [<ffffffff80233bef>] kthread+0xfe/0x132
Apr  5 09:03:07 zebra kernel:  [<ffffffff80260b2c>] child_rip+0xa/0x12
Apr  5 09:03:07 zebra kernel:  [<ffffffff8029bdab>]
keventd_create_kthread+0x0/0xc4


Somebody know what is going on????

Thanks for any help
-- 
Gilberto Nunes