I/O Bound Procs Clobbering Responsiveness

[Patrick Lists]

On 01-12-11 15:57, Ankur Sinha wrote:
> hello all,
>
> Quite a few people have observed screen freezes when there is heavy
> i/o.. This is the related bug:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=721127
>
> Do have a look. There isn't a solution currently, they're still trying
> to diagnose the issue.

Thanks for the pointer. I have seen a number of screen freezes on my 
workstation, an Intel i7, 6GB ram, encrypted 2x 2TB SATA (6Gb speed) 
RAID1 (mdraid), ATI HD59xx with F16 x86_64.

Maybe I read a lot of pdf's but I have seen the majority of the freezes 
occur during resizing the Evince window or changing the size.

I was under the assumption that it was caused by the radeon driver 
because I noticed that the temp of my videocard went to nearly 80C 
during regular usage. What I saw was a total screen freeze including the 
mouse. The clock would also no longer change. And I got no responses to 
a ping or ssh from my laptop to the workstation. Can you please confirm 
that you have seen similar symptoms?

Because I thought that it was caused by the radeon driver I installed 
the proprietary Catalyst 11.11 drivers from rpmfusion. Since then I have 
no longer seen a freeze.

Regards,
Patrick