Date: Tue, 20 Jul 2004 14:01:54 +1000 From: John Birrell <jb@cimlogic.com.au> To: Maxim Maximov <mcsi@mcsi.pp.ru> Cc: freebsd-current@freebsd.org Subject: Re: HEADS UP [Re: thread+preemption stability improvement] Message-ID: <20040720040153.GA21144@freebsd3.cimlogic.com.au> In-Reply-To: <40FC92C8.50604@mcsi.pp.ru> References: <Pine.NEB.3.96L.1040719115338.38770K-100000@fledge.watson.org> <40FC3090.9060305@freebsd.org> <40FC92C8.50604@mcsi.pp.ru>
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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
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