[mythtv-users] Mythbackend Segfault on Delete - SOLVED (I Hope)

[Bruce Taber]

On Thu, 2007-02-01 at 09:48 -0800, Kirk Bocek wrote:
> I'm glad to hear you've got XFS working Ian. My statement was pretty general
> because the message I saw here was pretty general. I'm trying to *find* more
> specific information.
> 
> All I know is my host was crashing when recording SD programming off of an
> HD-5500 capture card. HD seemed to work, however. After reformatting my myth
> video partition to ext3, it's working (so far!!) like a champ.
> 
> I am aware of the 4k vs. 8k stack issue. This an x86_64 host, so that
> shouldn't be an issue. The kernel messages I was receiving on a crash sure
> looked like the problem was somewhere among the collection of cx88 drivers.
> But I can't see how that would intersect with a FS issue.
> 
> Kirk Bocek
> 
> Ian Forde wrote:
> > On Thu, 2007-02-01 at 08:26 -0800, Kirk Bocek wrote:
> >> Thanks, Yeechang. I was hoping to also get information about why Myth is
> >> crashing on XFS and if any work was being done to correct the problem
> > 
> > That's a pretty general statement.  I've been running XFS for my myth
> > storage for 3 and a half years.  Not a single problem.  So that means
> > that there's something particular about *that* XFS setup that was
> > causing a problem.  Maybe it needed defragging (as XFS filesystems do
> > after they've spent quite a bit of time being full.)  Maybe it needed to
> > have fsck run.  At this point, we'll never know.
> > 
> > Point is that many people are using XFS quite happily...
> > 
> > 	-I
> 
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It seems that the XFS problem is one of the combination of XFS, LVM2
(don't know about LVM since I didn't try it), and some_partition_size.
My system was running that combination on a single 250G drive that was a
setup as a dedicated partition for the recordings. It was my only XFS
partition. The system is FC6 kept as up-to-date as possible. Generally,
daily updates are done from the normal repositories.

I wouldn't pin it on mythtv in any way. Ever since changing that
partition to EXT3 there have been no further incidences of mythbackend
or system instability.