Re: lot of VM problem with 2.4.23

From: Ville Herva
Date: Mon Dec 22 2003 - 16:20:14 EST


On Mon, Dec 22, 2003 at 08:09:43PM +0100, you [Andrea Arcangeli] wrote:
> On Mon, Dec 22, 2003 at 09:03:44AM +0200, Ville Herva wrote:
> >
> > BTW, I have a box with 128MB ram and 512MB swap running 2.4.21-jam1 (it has
> > the -aa vm). I can't shut it down cleanly, because trying it goes into
> > endless loop trying to free memory when turning off swap. Nothing but
> > alt-sysrq-b seems to work.
> >
> > I don't know if there is a kernel memory leak, since all user level
> > processes should be killed at that point, right? Unfortunately I didn't have
> > time to dig deeper, as the box is in (sort of) production.
>
> if this is a leak, I doubt it has been introduced recently, the only
> swap accounting related change was in the shm layer, and it was supposed
> to be a race fix. You may want to check if you've some shm allocated
> in /dev/shm or ipcs, while the machine reboots.

I'll check that the next time I reboot.

Unfortunately the box is in (semi-)production so I can't reboot it at will.


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