[mythtv-users] OT: Kernel errors
michael at thewatsonfamily.id.au
Wed Apr 18 01:11:08 UTC 2012
On 18/04/2012 11:04 AM, Anthony Giggins wrote:
> On 18 April 2012 10:43, Michael Watson <michael at thewatsonfamily.id.au
> <mailto:michael at thewatsonfamily.id.au>> wrote:
> On 18/04/2012 10:35 AM, Frank Phillips wrote:
> On Tue, Apr 17, 2012 at 7:07 PM, Jerry Rubinow
> <jerrymr at gmail.com <mailto:jerrymr at gmail.com>
> <mailto:jerrymr at gmail.com <mailto:jerrymr at gmail.com>>> wrote:
> On Tue, Apr 17, 2012 at 9:02 AM, Mark Lord <mythtv at rtr.ca
> <mailto:mythtv at rtr.ca>
> <mailto:mythtv at rtr.ca <mailto: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
> about the error state of the drives.
> Thanks Mark. kern.log had the same info as syslog, and
> 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
> 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 find "smart" almost useless with physical problems on hard
> drives. I find hddtemp in combination with a logging function
> like cacti or mrtg to show up physical hard drives better. (The
> temperature tends to go high when the disk is having physical issues)
> Try a 'cat /var/log/syslog | grep sdX'. Might reveal something.
> You might want to go through each of your hard drives (sda, sdb,
> etc) if you have more than one.
> Hi Michael,
> OT but can you provide your cacti scripts your using for hddtemp?
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