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SubjectRe: kswapd and system response


On Sat, 24 Nov 2001, Peter Jay Salzman wrote:

> hi there,
>
> every so often, my system (2.4.13 smp) gets really sloooooow. a typical top
> looks something like:
>
> PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
> 5 root 14 0 0 0 0 RW 99.9 0.0 7:52 kswapd
> 7 root 9 0 0 0 0 SW 1.9 0.0 0:04 kupdated
> 2053 root 13 0 984 984 776 R 0.7 0.4 0:01 top
> 2063 p 9 0 2080 2080 1292 S 0.3 0.9 0:00 vim
>
> kswapd is definitely not behaving correctly.
>
> the thing that brought it on this time was gtv (an mpeg viewer which uses
> sdl) bailed on me. X "kind of" froze, so i killed it. but that's only the
> cause this time around. last time, it happened between the time of going to
> bed and waking up (ie- the system was pretty much idling from a user's pov).
>
> this has been happening with the 2.4.13 kernel every couple of days.
>
> i thought i'd post it to lkml to let someone know that there's a problem.
> i'm not subscribed to the list, so if there's anything else i can do to help
> diagnose what's going on next time it happens, please cc me.
>
> i feel like such a loser when i reboot. ;) i heard that 2.4.15 was just
> released, so i'll try upgrading to that and see if it helps any.

Don't use 2.4.15: it may corrupt your filesystem.

I just released 2.4.16-pre1 which has a fix for this problem...

Please try it and tell us if you still see the kswapd problems.

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