[mythtv-users] Kernel errors

[Jerry Rubinow]

On Tue, Apr 17, 2012 at 8:35 PM, Frank Phillips <frankalso at gmail.com> wrote:

> On Tue, Apr 17, 2012 at 7:07 PM, Jerry Rubinow <jerrymr at gmail.com> wrote:
>
>> On Tue, Apr 17, 2012 at 9:02 AM, Mark Lord <mythtv at rtr.ca> wrote:
>>
>>> On 12-04-16 11:36 PM, Jerry Rubinow wrote:
>>> > My mythbackend computer locked up today, the whole computer, not just
>>> mythbackend.  Following is the
>>> > syslog at the time this happened.  It's been rock steady for months,
>>> and I haven't made any changes
>>> > lately.  I rebooted and now it seems to be functioning normally.
>>> >
>>> > Any suggestions for what I should do?  Is this a sign of disk errors?
>>> ..
>>>
>>> No, not with the scanty information provided.
>>> If there are disk errors, then there will be kernel logs along with them.
>>>
>>> Also, "smartctl -a /dev/sdX" will give very good information
>>> about the error state of the drives.
>>>
>>
>> Thanks Mark.  kern.log had the same info as syslog, and smartctl wasn't
>> revealing.  Sorry for the scanty info, but I'm not sure what direction to
>> look.
>>
>> Once more piece of data is that I saw a very high load before it
>> completely locked up, but the top items in top were not using much cpu.
>>
>>
>  That high load is caused by IO wait, which you can see in top as %wa. The
> longer the disk takes to complete a task, the more processes backup in the
> queue, causing a high load to be reported. Look closely at your disk, as it
> most likely has issues.
>

I found the following in kern.log, during the reboot after the lock-up, but
whether it's from an existing disk problem or a result of the hard reboot,
I don't know.  Hmm, looking at the kernel logs, it looks like the same
thing happened 3 days before, but then no kernel messages for several
months before that.  I'll try Michael's hddtemp suggestion next (thanks!).

Apr 16 23:01:58 kenny kernel: [    3.143740] EXT4-fs (sda1): INFO: recovery
required on readonly filesystem
Apr 16 23:01:58 kenny kernel: [    3.143753] EXT4-fs (sda1): write access
will be enabled during recovery
Apr 16 23:01:58 kenny kernel: [    3.460171] firewire_core: created device
fw0: GUID 0010dc0000d0e4fd, S400
Apr 16 23:01:58 kenny kernel: [    4.984099] EXT4-fs (sda1): orphan cleanup
on readonly fs
Apr 16 23:01:58 kenny kernel: [    5.021903] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 529531
Apr 16 23:01:58 kenny kernel: [    5.021987] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 530065
Apr 16 23:01:58 kenny kernel: [    5.023394] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 530064
Apr 16 23:01:58 kenny kernel: [    5.023438] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 530055
Apr 16 23:01:58 kenny kernel: [    5.023446] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 529856
Apr 16 23:01:58 kenny kernel: [    5.029437] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 524863
Apr 16 23:01:58 kenny kernel: [    5.029448] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 16515082
Apr 16 23:01:58 kenny kernel: [    5.029458] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 16515081
Apr 16 23:01:58 kenny kernel: [    5.029465] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 16515080
Apr 16 23:01:58 kenny kernel: [    5.029472] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 16515079
Apr 16 23:01:58 kenny kernel: [    5.029528] EXT4-fs (sda1):
ext4_orphan_cleanup: deleting unreferenced inode 16515078
Apr 16 23:01:58 kenny kernel: [    5.029534] EXT4-fs (sda1): 11 orphan
inodes deleted
Apr 16 23:01:58 kenny kernel: [    5.029539] EXT4-fs (sda1): recovery
complete
Apr 16 23:01:58 kenny kernel: [    5.217408] EXT4-fs (sda1): mounted
filesystem with ordered data mode. Opts: (null)
Apr 16 23:01:58 kenny kernel: [   15.694142] Adding 980988k swap on
/dev/sda5.  Priority:-1 extents:1 across:980988k
Apr 16 23:01:58 kenny kernel: [   15.844409] <30>udev[378]: starting
version 167
Apr 16 23:01:58 kenny kernel: [   16.110580] EXT4-fs (sda1): re-mounted.
Opts: errors=remount-ro

-Jerry
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.mythtv.org/pipermail/mythtv-users/attachments/20120417/f1da2bb2/attachment.html>