Date: Wed, 04 Aug 2004 15:34:49 -0600 From: Scott Long <scottl@freebsd.org> To: Geoff Speicher <geoff@speicher.org> Cc: current@freebsd.org Subject: Re: Postgresql locks up server - no response at all Message-ID: <41115679.2030300@freebsd.org> In-Reply-To: <20040804213319.GB98953@sirius.speicher.org> References: <1091649533.29481.42.camel@lanshark.dmv.com> <20040804203456.GA46377@parodius.com> <411152D8.2050305@alumni.rice.edu> <20040804213319.GB98953@sirius.speicher.org>
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Geoff Speicher wrote: > On Wed, Aug 04, 2004 at 04:19:20PM -0500, Jon Noack wrote: > >>On 08/04/04 15:34, Jeremy Chadwick wrote: >> >>>Many people over in freebsd-threads mentioned this problem, and recommended >>>all sorts-of different workarounds. I tried every one available to me, >>>except mucking with PREEMPTION (as I did not feel comfortable tinkering >>>with a random .h file on the box; seemed to be a kernel-related thing, >>>so I'd rather have just an "options" line for it -- I'm conditionally >>>lazy). >> >>The one you didn't try most likely was the culprit. Robert Watson >>showed that PREEMPTION and threading don't play well together right now: > > > FWIW, in mid-late July, my problems were not PREEMPTION-related. I > tried everything I could to get usable threaded apps under XFree86, but > my Athlon XP rebooted every time I tried to run kdm, Firefox, etc. > > This included all four combinations of PREEMPTION and ULE/4BSD. Rolling > back to July 1 was the only thing that worked for me. > > Geoff > Yeah, the instant reboots have hit me too. Disabling PREEMPTION did seem to help this for me, but then it might have been a coincidence. Incidentally, what video drivers are you using? Scott
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