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apollo.backplane.com> <20100323090705.GA1138@sekishi.zefyris.com>
From: Matthew Dillon <dillon@apollo.backplane.com>
Subject: Re: Machine unresponsive with cache_lock: blocked on... message
Date: Tue, 23 Mar 2010 09:11:40 -0700 (PDT)
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:I'm not completely happy either: even with 40 some applications get paged out,
:which didn't occur with 2.4.

    There's nothing wrong with an application getting paged out if it
    is idle.  It really isn't a bad thing.  It frees up memory for the
    apps which ARE running.

    What people don't seem to like is when a lot of apps get paged out
    overnight in order to satisfy certain overnight operations which
    operate on a very large data set (the entire filesystem) and
    can't be cached anyway.

:I also had a new deadlock this night (possibly during the daily periodic run).
:Symptoms were the same as usual: no keyboard input, no network activity, many
:pmap_interlock messages on the console...
:
:The new crash dump is there: http://www.wolfpond.org/crash.dfly/
:
:I have now set vfs.vm_cycle_point to 64 just in case. I may still be
:positively surprised...
:
:-- 
:Francois Tigeot

    Ok, I'll look at it.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>