[Users] kernel errors in syslog
Kirill Korotaev
dev at sw.ru
Thu Jul 5 04:11:14 EDT 2007
Stuart,
it looks like you are using NFS inside VE,
so kthreads should be allowed via:
# echo 1 > /proc/sys/kernel/ve_allow_kthreads
and these call traces will go away.
If you experience a lockup again, please press Alt-SysRq-P multiple times
and Alt-SysRq-T and provide the output
(it can be collected e.g. via net or serial console)
Thanks,
Kirill
Stuart MacIntosh wrote:
> Hello everyone,
> I'm frequently seeing errors in the logs upon VE start and during a
> heavy I/O (cp /something /somwhere on HN) I had a lockup and kernel
> panic but did not have a serial console attached to catch the panic
> message sorry.
>
> Is this a bug? I found http://bugzilla.openvz.org/show_bug.cgi?id=470
> with similar problem but it says the bug is fixed(?)
>
> the errors look like this:
>
>>Jul 6 02:20:09 server01 kernel: lockd_down: no lockd running.
>>Jul 6 02:20:11 server01 kernel: VE: 104: stopped
>>Jul 6 02:20:12 server01 kernel: VE: 104: started
>>Jul 6 02:20:26 server01 kernel: kernel_thread call inside VE
>>Jul 6 02:20:26 server01 kernel: [<c0101569>] kernel_thread+0xc9/0xd0
>>Jul 6 02:20:26 server01 kernel: [<c01505ec>] __alloc_pages+0x2ac/0x370
>>Jul 6 02:20:26 server01 kernel: [<f8ea3080>] svc_create_thread+0x130/0x160 [sunrpc]
>>Jul 6 02:20:26 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 02:20:26 server01 kernel: [<f8e892dc>] lockd_up+0xfc/0x190 [lockd]
>>Jul 6 02:20:26 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 02:20:26 server01 kernel: [<f8f05ff3>] nfs_get_sb+0x513/0x7f0 [nfs]
>>Jul 6 02:20:26 server01 kernel: [<f8f04c00>] nfs_compare_super+0x0/0x80 [nfs]
>>Jul 6 02:20:26 server01 kernel: [<f8f04be0>] nfs_set_super+0x0/0x20 [nfs]
>>Jul 6 02:20:26 server01 kernel: [<c0172b4c>] vfs_kern_mount+0x4c/0xa0
>>Jul 6 02:20:26 server01 kernel: [<c0172c12>] do_kern_mount+0x42/0x60
>>Jul 6 02:20:26 server01 kernel: [<c018aa8d>] do_mount+0x26d/0x7a0
>>Jul 6 02:20:26 server01 kernel: [<c013842a>] ub_slab_charge+0x7a/0x140
>>Jul 6 02:20:26 server01 kernel: [<c03fc6b6>] inet_csk_get_port+0x136/0x280
>>Jul 6 02:20:26 server01 kernel: [<c041ccd9>] inet_bind+0xd9/0x210
>>Jul 6 02:20:26 server01 kernel: [<c013c1ef>] pb_free+0x1f/0x30
>>Jul 6 02:20:26 server01 kernel: [<c01506dd>] __get_free_pages+0x2d/0x50
>>Jul 6 02:20:26 server01 kernel: [<c0189657>] copy_mount_options+0x47/0x130
>>Jul 6 02:20:26 server01 kernel: [<c018b058>] sys_mount+0x98/0xe0
>>Jul 6 02:20:26 server01 kernel: [<c0103083>] syscall_call+0x7/0xb
>>Jul 6 02:20:26 server01 kernel: lockd_up: create thread failed, error=-1
>>Jul 6 02:43:29 server01 -- MARK --
>>Jul 6 03:02:43 server01 kernel: VE: 104: stopped
>>Jul 6 03:02:43 server01 kernel: VE: 104: started
>>Jul 6 03:03:13 server01 kernel: kernel_thread call inside VE
>>Jul 6 03:03:13 server01 kernel: [<c0101569>] kernel_thread+0xc9/0xd0
>>Jul 6 03:03:13 server01 kernel: [<c01505ec>] __alloc_pages+0x2ac/0x370
>>Jul 6 03:03:13 server01 kernel: [<f8ea3080>] svc_create_thread+0x130/0x160 [sunrpc]
>>Jul 6 03:03:13 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 03:03:13 server01 kernel: [<f8e892dc>] lockd_up+0xfc/0x190 [lockd]
>>Jul 6 03:03:13 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 03:03:13 server01 kernel: [<f8f05ff3>] nfs_get_sb+0x513/0x7f0 [nfs]
>>Jul 6 03:03:13 server01 kernel: [<f8f04c00>] nfs_compare_super+0x0/0x80 [nfs]
>>Jul 6 03:03:13 server01 kernel: [<f8f04be0>] nfs_set_super+0x0/0x20 [nfs]
>>Jul 6 03:03:13 server01 kernel: [<c0172b4c>] vfs_kern_mount+0x4c/0xa0
>>Jul 6 03:03:13 server01 kernel: [<c0172c12>] do_kern_mount+0x42/0x60
>>Jul 6 03:03:13 server01 kernel: [<c018aa8d>] do_mount+0x26d/0x7a0
>>Jul 6 03:03:13 server01 kernel: [<c013842a>] ub_slab_charge+0x7a/0x140
>>Jul 6 03:03:13 server01 kernel: [<c03fc6b6>] inet_csk_get_port+0x136/0x280
>>Jul 6 03:03:13 server01 kernel: [<c041ccd9>] inet_bind+0xd9/0x210
>>Jul 6 03:03:13 server01 kernel: [<c013c1ef>] pb_free+0x1f/0x30
>>Jul 6 03:03:13 server01 kernel: [<c01506dd>] __get_free_pages+0x2d/0x50
>>Jul 6 03:03:13 server01 kernel: [<c0189657>] copy_mount_options+0x47/0x130
>>Jul 6 03:03:13 server01 kernel: [<c018b058>] sys_mount+0x98/0xe0
>>Jul 6 03:03:13 server01 kernel: [<c0103083>] syscall_call+0x7/0xb
>>Jul 6 03:03:13 server01 kernel: lockd_up: create thread failed, error=-1
>>Jul 6 03:05:05 server01 kernel: VE: 104: stopped
>>Jul 6 03:05:09 server01 kernel: VE: 104: started
>>Jul 6 03:05:23 server01 kernel: kernel_thread call inside VE
>>Jul 6 03:05:23 server01 kernel: [<c0101569>] kernel_thread+0xc9/0xd0
>>Jul 6 03:05:23 server01 kernel: [<c01505ec>] __alloc_pages+0x2ac/0x370
>>Jul 6 03:05:23 server01 kernel: [<f8ea3080>] svc_create_thread+0x130/0x160 [sunrpc]
>>Jul 6 03:05:23 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 03:05:23 server01 kernel: [<f8e892dc>] lockd_up+0xfc/0x190 [lockd]
>>Jul 6 03:05:23 server01 kernel: [<f8e89500>] lockd+0x0/0x360 [lockd]
>>Jul 6 03:05:23 server01 kernel: [<f8f05ff3>] nfs_get_sb+0x513/0x7f0 [nfs]
>>Jul 6 03:05:23 server01 kernel: [<f8f04c00>] nfs_compare_super+0x0/0x80 [nfs]
>>Jul 6 03:05:23 server01 kernel: [<f8f04be0>] nfs_set_super+0x0/0x20 [nfs]
>>Jul 6 03:05:23 server01 kernel: [<c0172b4c>] vfs_kern_mount+0x4c/0xa0
>>Jul 6 03:05:23 server01 kernel: [<c0172c12>] do_kern_mount+0x42/0x60
>>Jul 6 03:05:23 server01 kernel: [<c018aa8d>] do_mount+0x26d/0x7a0
>>Jul 6 03:05:23 server01 kernel: [<c013842a>] ub_slab_charge+0x7a/0x140
>>Jul 6 03:05:23 server01 kernel: [<c03fc6b6>] inet_csk_get_port+0x136/0x280
>>Jul 6 03:05:23 server01 kernel: [<c041ccd9>] inet_bind+0xd9/0x210
>>Jul 6 03:05:23 server01 kernel: [<c013c1ef>] pb_free+0x1f/0x30
>>Jul 6 03:05:23 server01 kernel: [<c01506dd>] __get_free_pages+0x2d/0x50
>>Jul 6 03:05:23 server01 kernel: [<c0189657>] copy_mount_options+0x47/0x130
>>Jul 6 03:05:23 server01 kernel: [<c018b058>] sys_mount+0x98/0xe0
>>Jul 6 03:05:23 server01 kernel: [<c0103083>] syscall_call+0x7/0xb
>>Jul 6 03:05:23 server01 kernel: lockd_up: create thread failed, error=-1
>>
>>
>
>
> some other info:
> server01:~# uname -a
> Linux server01 2.6.18-028stab035.1-ovz #1 Wed Jun 13 21:25:54 CEST 2007 i686 GNU/Linux
> server01:~# cat /proc/version
> Linux version 2.6.18-028stab035.1-ovz (tsd at debian.systs.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Wed Jun 13 21:25:54 CEST 2007
>
> using debian etch with packages from systs.org - are the CentOS kernels more stable?
>
> Thanks,
> Stuart.
>
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