Seth Vidal wrote:
On Wed, 25 Mar 2009, Gerry Reno wrote:
We're seeing a number of hangs using preupgrade at the "Generating
metadata ..." stage. The hangs are so tight that they corrupt the
mdraid arrays which were probably in the middle of a write. The
causes the arrays to resync on next boot which takes a couple hours.
The hang always occurs on a disk access as we can see the array
activity light stays on after the hang. I suspect some type of
uninterrupible infinite loop is going on. Once the hang occurs the
server completely stop responding to inputs: network, keyboard,
mouse, etc. I did not find any core files upon reboot.
We're on our fourth attempt with one machine to get preupgrade to
complete without this hang.
Is it in the middle of making the sqlite files? That's the only thing
I can think of that's very disk-write intensive.
-sv
I don't know what it's doing. It just shows the progress bar overlayed
with "Generating metadata XX%" and at some point before it finishes it
locks up.
Regards,
Gerry
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