Bug#499745: linux-image-2.6.26-1-xen-686: freezes under Xen 3.2.0
Ferenc Wagner <wferi@niif.hu> writes:
> Bastian Blank <waldi@debian.org> writes:
>
>> On Sun, Sep 21, 2008 at 02:18:37PM +0200, Ferenc Wagner wrote:
>>> Yesterday afternoon three out of our four Lenny virtual machines froze.
>>> The consoles went unresponsible, the buffers contained no interesting
>>> messages, the Munin graphs didn't show any anomaly before the freeze.
>>> According to dom0 (Etch with hypervisor from Backports.org) the domUs
>>> are stuck in r state (constantly running).
>>
>> Please show the complete versions of all related components.
This still happens under current Lenny with the same kernel running in
the virtual machine (which is current Lenny, too):
libc6-xen 2.7-14
libxenstore3.0 3.2.1-2
linux-image-2.6.26-1-xen-686 2.6.26-8
linux-modules-2.6.26-1-xen-686 2.6.26-8
xen-hypervisor-3.2-1-i386 3.2.1-2
xen-linux-system-2.6.26-1-xen-686 2.6.26-8
xen-utils-3.2-1 3.2.1-2
xen-utils-common 3.2.0-2
xenstore-utils 3.2.1-2
Some possibly interesting console output is available:
[322998.720866] INFO: task apache2:735 blocked for more than 120 seconds.
[322998.720878] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[322998.720883] apache2 D 90fac331 0 735 703
[322998.720892] c69d6da0 00000246 00000000 90fac331 0001250f c69d6f28 c1391b40 00000000
[322998.720907] c6ef8780 c9141d4a 00011570 000b0d69 00000000 00014005 00000000 00000001
[322998.720921] 00000000 000002d0 c66bb480 c913f03e c9137a91 00000000 ffffffff c0cc3578
[322998.720935] Call Trace:
[322998.720949] [<c9141d4a>] xfs_buf_get_flags+0xa6/0x10a [xfs]
[322998.721003] [<c913f03e>] kmem_zone_alloc+0x46/0x8a [xfs]
[322998.721034] [<c9137a91>] xfs_trans_read_buf+0x3f/0x2ae [xfs]
[322998.721064] [<c02cb32a>] rwsem_down_failed_common+0x176/0x191
[322998.721076] [<c02cb35d>] rwsem_down_write_failed+0x18/0x1f
[322998.721083] [<c02cb3c6>] call_rwsem_down_write_failed+0x6/0x8
[322998.721094] [<c02ca856>] down_write+0x12/0x13
[322998.721100] [<c9145ee0>] xfs_write+0x184/0x70d [xfs]
[322998.721127] [<c01041ef>] device_not_available+0x23/0x28
[322998.721137] [<c0104471>] math_state_restore+0x60/0x70
[322998.721145] [<c9142f2a>] xfs_file_aio_write+0x52/0x59 [xfs]
[322998.721173] [<c016fbd2>] do_sync_write+0xbf/0x100
[322998.721188] [<c012eba0>] autoremove_wake_function+0x0/0x2d
[322998.721198] [<c0133104>] getnstimeofday+0x37/0xbc
[322998.721207] [<c013c828>] do_acct_process+0x5a5/0x5cd
[322998.721218] [<c0106151>] get_runstate_snapshot+0x69/0xec
[322998.721228] [<c011611c>] dequeue_entity+0x13/0x9b
[322998.721234] [<c011601c>] __dequeue_entity+0x1f/0x71
[322998.721242] [<c02ca00d>] schedule+0x631/0x6b1
[322998.721257] [<c013cd52>] acct_process+0x89/0xab
[322998.721264] [<c0121310>] do_exit+0x1f0/0x5f9
[322998.721272] [<c01217ad>] do_group_exit+0x94/0xbd
[322998.721282] [<c01292ad>] get_signal_to_deliver+0x3a0/0x3f0
[322998.721291] [<c010357c>] do_notify_resume+0x7e/0x696
[322998.721301] [<c010ea9e>] do_page_fault+0x604/0xb2e
[322998.721312] [<c010eb04>] do_page_fault+0x66a/0xb2e
[322998.721318] [<c01b7e07>] security_file_permission+0xc/0xd
[322998.721326] [<c016fc13>] do_sync_read+0x0/0xfe
[322998.721332] [<c017045a>] vfs_read+0x81/0x11e
[322998.721343] [<c01708ab>] sys_read+0x3c/0x63
[322998.721348] [<c01708ca>] sys_read+0x5b/0x63
[322998.721355] [<c0104055>] work_notifysig+0x13/0x1a
[322998.721363] =======================
--
Thanks,
Feri.
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