>The fix is to kill the dead/orphaned swap pages before we get to
>swapoff. At shutdown time there is practically nothing active in
> ...
>Once the dead swap pages problem is fixed it is time to optimize
>swapoff.
I think fixing the orphaned swap pages problem will eliminate the
problem all to
"Bulent Abali" <[EMAIL PROTECTED]> writes:
> >Bulent,
> >
> >Could you please check if 2.4.6-pre2+the schedule patch has better
> >swapoff behaviour for you?
>
> Marcelo,
>
> It works as expected. Doesn't lockup the box however swapoff keeps burning
> the CPU cycles. It took 4 1/2 minutes to
>Bulent,
>
>Could you please check if 2.4.6-pre2+the schedule patch has better
>swapoff behaviour for you?
Marcelo,
It works as expected. Doesn't lockup the box however swapoff keeps burning
the CPU cycles. It took 4 1/2 minutes to swapoff about 256MB of swap
content. Shutdown took just as
>> I looked at try_to_unuse in swapfile.c. I believe that the algorithm is
>> broken.
>> For each and every swap entry it is walking the entire process list
>> (for_each_task(p)). It is also grabbing a whole bunch of locks
>> for each swap entry. It might be worthwhile processing swap entries
On Thu, 7 Jun 2001, Bulent Abali wrote:
>
>
>
>
> >This is for the people who has been experiencing the lockups while running
> >swapoff.
> >
> >Please test. (against 2.4.6-pre1)
> >
> >
> >--- linux.orig/mm/swapfile.c Wed Jun 6 18:16:45 2001
> >+++ linux/mm/swapfile.c Thu Jun 7 16:06:11
On Thu, 7 Jun 2001, Bulent Abali wrote:
>
> I tested your patch against 2.4.5. It works. No more lockups. Without
> the
> patch it took 14 minutes 51 seconds to complete swapoff (this is to recover
> 1.5GB of
> swap space). During this time the system was frozen. No keyboard, no
> screen,
>This is for the people who has been experiencing the lockups while running
>swapoff.
>
>Please test. (against 2.4.6-pre1)
>
>
>--- linux.orig/mm/swapfile.c Wed Jun 6 18:16:45 2001
>+++ linux/mm/swapfile.c Thu Jun 7 16:06:11 2001
>@@ -345,6 +345,8 @@
> /*
> * Find a swap pag
On Thu, 7 Jun 2001, Marcelo Tosatti wrote:
>
> On Thu, 7 Jun 2001, Mike Galbraith wrote:
>
> > On 6 Jun 2001, Eric W. Biederman wrote:
> >
> > > Mike Galbraith <[EMAIL PROTECTED]> writes:
> > >
> > > > > If you could confirm this by calling swapoff sometime other than at
> > > > > reboot tim
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