Re: [fwd] cvs commit: src/lib/libthr/thread thr_mutex.c thr_umtx.c thr_umtx.h src/sys/kern kern_umtx.c src/sys/sys umtx.h

On Tue, 01 Jul 2008 14:29:32 +0400
Vladimir Grebenschikov <vova_at_fbsd.ru> wrote:

> On Tue, 2008-07-01 at 10:49 +0200, Gary Jennejohn wrote:
> > On Mon, 30 Jun 2008 22:28:44 +0400
> > Vladimir Grebenschikov <vova_at_fbsd.ru> wrote:
> > 
> > > On Tue, 2008-06-24 at 07:32 +0000, David Xu wrote:
> > > 
> > > This commit makes threaded application almost unusable on
> > > 8-CURRENT.
> > > 
> > > Applications eat 100% CPU all the time and works _very_ slowly.
> > > (top shows several threads for every constantly applications
> > > eating CPU)
> > > 
> > > Following applications are affected for me: firefox, evolution,
> > > eclipse (probably more).
> > > 
> > > Reverting user-land part of commit fixes problem, reverting kernel
> > > changes nothing regarding the problem.
> 
> ...
> 
> > Did you recompile these misbehaving applications?
> > 
> > I ask because I installed a fresh world yesterday, without
> > recompiling any ports, and I'm _not_ seeing any misbehavior with
> > firefox.
> 
> Do you have SMP system ? 
> 
Works fine for me on amd64 SMP and i386 UP systems, world build on June
29th on both.

Could you ktrace firefox-bin while it spins? Just in case...

-- 
Alexander Kabaev