[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

[Vladimir Grebenschikov]

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.
> > 
> > I have:
> > FreeBSD 8.0-CURRENT #0: Fri Jun 20 17:14:23 MSD 2008
> >     root at vbook.fbsd.ru:/usr/obj/usr/src/sys/VBOOK
> > Timecounter "i8254" frequency 1193182 Hz quality 0
> > CPU: Intel(R) Core(TM)2 CPU         T7200  @ 2.00GHz (1995.01-MHz 686-class CPU)
> >   Origin = "GenuineIntel"  Id = 0x6f6  Stepping = 6
> >   Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
> >   Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
> >   AMD Features=0x20100000<NX,LM>
> >   AMD Features2=0x1<LAHF>
> >   Cores per package: 2
> > 
> [snip commit message]
> 
> 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.

Yes, I've tried to rebuild firefox - nothing changed.
Probably need to rebuild something else (glib or what ?). 
In that case one need to bump lib version or/and announcer that problem.

> ---
> Gary Jennejohn
-- 
Vladimir B. Grebenschikov
vova at fbsd.ru