Re: s2disk hang update

From: Rafael J. Wysocki
Date: Thu Feb 25 2010 - 15:03:58 EST


On Thursday 25 February 2010, Alan Jenkins wrote:
> On 2/24/10, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > On Wednesday 24 February 2010, Alan Jenkins wrote:
...
>
> > - while (to_free_normal > 0 && to_free_highmem > 0) {
> > + while (to_free_normal > 0 || to_free_highmem > 0) {
>
> Yes, that seems to do it. No more hangs so far (and I can still
> reproduce the hang with too many applications if I un-apply the
> patch).

OK, great. Is this with or without the NOIO-enforcing patch?

> I did see a non-fatal allocation failure though, so I'm still not sure
> that the current implementation is strictly correct.
>
> This is without the patch to increase "to_free_normal". If I get the
> allocation failure again, should I try testing the "free 20% extra"
> patch?

Either that or try to increase SPARE_PAGES. That should actually work with
the last patch applied. :-)

Rafael
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