Re: 2.6.4 on Alpha uninterruptible sleep of processes

From: Marc Giger
Date: Fri Mar 12 2004 - 15:57:45 EST


On Fri, 12 Mar 2004 22:46:49 +0300
Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx> wrote:

> On Fri, Mar 12, 2004 at 04:59:07PM +0100, Marc Giger wrote:
> > Too late. Already applied, compiled and booted. Read your message
> > and rebooted to 2.4:-)
>
> Well, you can try the appended patch to see whether it's
> a semaphore problem or not.
> BTW, what alpha system do you have?

Right now I'm recompiling the kernel. So you say this patch isn't a fix
but a test? This time I have additionally "semaphore debugging" enabled,
perhaps it's useful for you.
I will inform you as soon as I get new infos.

>
> > Why is there no option to compile a preemptive kernel? Not possible
> > on alpha or nobody interested to code or...?
>
> The answer is here:
> http://bugzilla.kernel.org/show_bug.cgi?id=397

That's no answer, that's a statement:-) Do know the exactly reason why
it should be a bad idea? Is it mostly a bad idea on alpha?

>
> > In 2.4.23 /prc/meminfo shows always
> >
> > Buffers: 0 kB
> >
> > Is it normal on alpha? 2.6.4 showed a value > 0
>
> No idea. In 2.4.25 I have a non-zero value as well:
> Buffers: 7288 kB

Interestingly. I'm still waiting to the acl patch for 2.4.25. I think I
will rediff it myself.

Thank you for your work!

Regards

Marc
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