[mythtv-users] OT. Howto diagnose machine dying/crashing

Tim Berger tim.berger at gmail.com
Fri Sep 15 17:44:52 UTC 2006

Let me take a wild guess - you're using xfs, aren't you?

There's going to be a lot of people on this list with high praise for xfs,
but on a 2.6 kernel with 4k stacks, there's a high likelihood of oopsing the
kernel, especially when layered with raid and nfs.  ext3 works just fine
with myth, and it's *stable*.


In any event, netdump is a great tool to capture an entire oops message with
these sort of lockups, if it indeed it's oopsing.

On 9/15/06, Mark <mark at ripitup.ca> wrote:
> Combined NFS server / mythfront end box. Mythbackend on another machine
> uses
> the NFS.
> I have a 1TB software raid ( 4 x 320 IDE drives ) and a single sata drive
> (
> FC5 OS is on it ).
> About every week or 10 days, this box just up and dies.  No
> /var/log/messages
> entries ( you just see the reboot ), nothing on the screen etc...
> I have a 410 watt power supply, a couple of fans, it seems cool, low load
> etc....
> I am not sure what could be causing this and I am getting no info from it
> that
> helps me diagnose it further.  SMART tests on the disks show all OK.  It
> does
> seem to be load related because I have reproduced it once by transfering a
> hundred or so gigs of data into it and it died then.
> FC5, mdadm raid..
> The RAID is broken into one drive per bus ( onboard primary and secondary
> and
> an IDE PCI card with pri and sec as well ) I use to have all 4 drives on
> the
> master/slave of the built in IDE ports, but broke them up into their own
> bus
> as I thought that might be causing this.
> Any thoughts on what to try, look for, etc....?
> Thanks!
> Mark
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