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SubjectRe: uninteruptable sleep
That happened to me with 2.4.2-ac28 when I tried using DRM.
I also got the following messages in syslog.

/var/log/messages.1:Mar 31 12:15:04 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:15:04 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:15:15 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:15:15 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:15:16 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:15:40 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:18 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:31 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:32 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:45 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:45 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:48 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!
/var/log/messages.1:Mar 31 12:16:49 joker kernel:
[drm:r128_do_wait_for_fifo] *ERROR* r128_do_wait_for_fifo failed!/

So I turned off DRI in X 4.0.3

HTH
Steve

Trevor Nichols wrote:
>
> Hi all,
>
> Since upgrading to the latest stable (2.4.3) kernel, I've noticed that
> randomly some processes are going into an uninteruptable sleep and not
> waking up at all.
>
> It's happened to nautilus and today just happened to mozilla also.
> Another common related problem is the load averages go up to n + "normal"
> where n is the number of processes that have gone uninteruptable sleep.
> This is making me think it's a kernel related problem.
>
> I had one time where nautilus with 9 [presumably forked] processes of
> itself go this way, causing load averages to go 9+, however the system
> doesn't appear to be straining or strugling under that much load.
>
> The previous kernel version that I was using (2.4.1) did not have this
> problem.
>
> One last thing, if this turns out to be a non-kernel problem, the
> processes that *do* get stuck, are unkillable - even by root with SIGKILL.
> Is there any way for it to be able to? :) So far I have to reboot each
> time it happens.
>
> Best regards,
> Trevor Nichols.
>
> ps please CC replies to my address. thanks.
>
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