Re: Lot of time in schedule() (Freeze?)
Jochen Hoenicke (Jochen.Hoenicke@Informatik.Uni-Oldenburg.DE)
Fri, 20 Nov 98 15:12 MET
: Yesterday I've got a `pseudo-freeze' problem (in 2.1.127): at 23:00,
: while I was doing a massive tar/gz (about 1Gig of stuff) I've noticed
: a total slowdown (seeing the drive light off, I thought it was
: finished... no). It was 100% CPU in system (shown in top, about 50
: secs to launch it, BTW). There was 3 cron instances (at 23:00 starts a
: job to check symlinks) and my tar each with 25% CPU in system.
:
: Alt-Scrollock said it was in schedule() (I've got the numbers written -
: all very near -, so maybe I can locate the point).
:
: gcc is egcs-2.91.57. Simple PII/300 uniproc
:
: - --
: Lorenzo 'Caffeine' Marcantonio <lomarcan@tin.it>
I had the same problem today with 2.1.128. 100 % CPU-Load in system,
SYSRQ+showPc showed addresses in schedule(). But the freeze did only
affect newly created processes. I could work with emacs as before,
access disk files etc. without problems.
After pressing SYSRQ+tErm, the whole system hang, not even SYSRQ
worked any more.
Jochen
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