Re: New RAID causing system lockups

quoted

I don't know yet what is causing the lock-up.  A quick look at your logs
suggest that it could be related to the barrier handling.  Maybe trying to
handle a barrier during a reshape is prone to races of some sort - I wouldn't
be very surprised by that.

Just note that during the second lockup no reshape or resync was going
on. The array state was stable, I was just writing to it.

quoted

I'll have a look at the code and see what I can find.

Thanks a lot. If it was only a risk when I was growing/reshaping the
array, and covered by the backup file, it would just be an
inconvenience. But since it can seemingly happen at any time it's a
problem.

The lockup just happened again. I wasn't doing any
growing/reshaping/anything like that. Just copying some data into the
partition that lives on md0. dmesg_3.txt has been uploaded alongside
the other files at http://www.hartmanipulation.com/raid/. The trace
looks pretty similar to me.

Mike
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