Re: 2.5.18, pdflush 100% cpu utilization

fchabaud@free.fr
Sat, 25 May 2002 22:52:51 +0200 (CEST)


Le 25 Mai, Diego Calleja a écrit :
> I've started my kernel 2.5.18.
> I was testing software suspend, but kernel said:
>
> Kernel Panic: pse required
>
> Software Suspend is not posible now.
>
>
> But i was able to continue, now I've pdflush running on PID 6,
> and it takes 100% of idle cpu, perhaps it has nothing to see with
> Software Suspend.....

It probably has. I don't know what pdflush is but it has to be suspended
using refrigerator(PF_IOTHREAD) because otherwise signals are not
treated by this task and not resetted by suspend (hence the task has
always signal pending after resume).

--
Florent Chabaud         ___________________________________
SGDN/DCSSI/SDS/LTI     | florent.chabaud@polytechnique.org
http://www.ssi.gouv.fr | http://fchabaud.free.fr

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