Jeff Dike wrote:
> I've seen this bug multiple times. Basically, something is holding a
> mm_sem and not letting go. Anything that walks the process list hangs.
> Ultimately, this hangs anything that's remotely useful, and you have to
> crash the box.
Indeed. I experienced the problem every 24-36hrs around five times in a
row last week. Pretty much every morning, I'd come in and the box was
completly dead. It seems to be okay at the moment, but I'm not holding
my breath.
> One factoid that I forgot to mention there is that when it happens on my
> laptop, the disk activity light is stuck on.
My box doesn't have a light, but what I got from SNMP before the box
died suggested that the system (e.g. the 'system' CPU usage MIB) was
using a considerable amount of CPU time (>95%), so I'm not sure if it
was swapping madly, or if something else was going on.
David
-- David Coulson http://davidcoulson.net/ d@vidcoulson.com http://journal.davidcoulson.net/- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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