[mythtv-users] JFS, MythTV and Machine Check Errors
beww at beww.org
Mon Jan 23 17:08:10 UTC 2006
Not directly related to MythTV, but I'm having this problem with a
Myth box so I thought I'd so if I am alone in this.
I originally set up my machine with a couple of jfs partitions for
media storage, one 200GB partition on my main system disk and a 500GB
partition on a software RAID composed of 2 250GB SATAs.
Everything normal, more or less, 'till my main disk crashed and I
started from scratch again, with a new 250GB system drive.
Upon starting to set up this machine I was getting machine check
errors/kernel panics. "Can't Sync" was reported along with hex error
codes. Hmmm... Never had an MCE on this box before, ever.
To make a long story short(er), I finally realized that sometimes the
jfs partitions get recognized and mounted at boot, and sometimes they
don't. When they don't an attempt to mount them results in "bad
superblock". If I re-make the filesystems they will then mount.
I figured out that I am getting the MCEs only when the filesystems do
not mount, Once they are mounted things seem OK. I suspect this may
be related to software RAID in some way but I'm not sure how to tell.
Since the box locks up solid on an MCE there is no way I can get
mcelog to tell me about the error, as it goes away on a re-boot. (I
suppose I could write it down and try to get mcelog to decode it).
There is nothing in the system logs (mce does not do that anymore
apparently). I really do not think this is a hardware problem.
So: Anybody had flaky experience getting existing jfs partions
recognized at boot? Any problems with jfs on software RAID? Should I
try a different filesystem? I'm re-building now with a 2.6.15 kernel
(just a masochist I guess) so now's the time if I'm going to change.
beww at beww.org
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