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Date:      Thu, 15 Jul 2004 22:59:29 -0500
From:      Jon Noack <noackjr@alumni.rice.edu>
To:        Robert Watson <rwatson@freebsd.org>
Cc:        Eric Anderson <anderson@centtech.com>
Subject:   Re: ACPI degrading.. ?
Message-ID:  <40F752A1.8020705@alumni.rice.edu>
In-Reply-To: <Pine.NEB.3.96L.1040715234852.50858B-100000@fledge.watson.org>
References:  <Pine.NEB.3.96L.1040715234852.50858B-100000@fledge.watson.org>

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On 07/15/04 22:49, Robert Watson wrote:
> On Thu, 15 Jul 2004, Jon Noack wrote:
>> Come to think of it, all of my hard lockups were when Firefox was 
>> running. I think (some of) the issues native preemption uncovered
>> are related to threading. In any case, I commented out "#define
>> PREEMPTION" in src/sys/<ARCH>/include/param.h and rebuilt my kernel
>> so it would stay up for more than 30 minutes.
> 
> I've also drawn the same conclusion -- to trigger the hangs, I run MySQL
> with a threaded benchmark.  Otherwise, things seem fairly stable on my
> test boxes.  Could you try running with PREEMPTION and using libthr
> instead of libkse and see if you get the same result?

I'm rebuilding my kernel with PREEMPTION and will add the following 
"global" values to /etc/libmap.conf before I reboot:
libpthread.so.1       libthr.so.1
libpthread.so         libthr.so

I'll let you know how things pan out -- shouldn't be too long.

Jon



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