HEADS UP [Re: thread+preemption stability improvement]

[John Birrell]

On Tue, Jul 20, 2004 at 07:34:32AM +0400, Maxim Maximov wrote:
> 	I think it is needed :( Things actually get _much_ better, now I've 
> been able to use my big IMAP folders, but still after applying the patch 
> and working about an hour mozilla freezes with the same sympthoms (cpu 
> fan gets spinning faster and faster as if cpu temperature is raising). 
> Are there any ways I can help track this down further?
> 	Preemption is enabled, of course. My kernel's config is latest 
> 	GENERIC with these additions:

Even with PREEMPTION disabled, current freezes for me with a threaded application
with lots of sendfiles in progress. I haven't figured out the set of conditions
that actually trigger the freeze other than it never freezes if I have no
libpthread application running (and loaded to some degree).

I wonder if anyone has had current under load and if so, in what situations.
It looks like this code base is a long way away from being ready for a stable
branch. Grumble. The gap between 4 and 5 is too big. Not happy. At some point
people need to concentrate on stability. I would concede API changes for 
stability any day. Every day.

-- 
John Birrell