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Date:      Wed, 17 Aug 2011 07:48:20 +1000
From:      Peter Jeremy <peterjeremy@acm.org>
To:        Marius Strobl <marius@alchemy.franken.de>
Cc:        freebsd-sparc64@freebsd.org
Subject:   Re: 'make -j16 universe' gives SIReset
Message-ID:  <20110816214820.GA35017@server.vk2pj.dyndns.org>
In-Reply-To: <20110813143807.GY48988@alchemy.franken.de>
References:  <20110526234728.GA69750@server.vk2pj.dyndns.org> <20110527120659.GA78000@alchemy.franken.de> <20110601231237.GA5267@server.vk2pj.dyndns.org> <20110608224801.GB35494@alchemy.franken.de> <20110613235144.GA12470@server.vk2pj.dyndns.org> <20110813143807.GY48988@alchemy.franken.de>

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On 2011-Aug-13 16:38:07 +0200, Marius Strobl <marius@alchemy.franken.de> wr=
ote:
>Could you please give the following patch with SCHED_4BSD (cpu_switch()
>still is missing support for SCHED_ULE) with something like -j128
>buildworlds a try on your V890?
>http://people.freebsd.org/~marius/sparc64_replace_sched_lock_w_atomic.diff

Getting better but still not perfect.  It survived a couple of -j128
buildworlds with another six -j16 buildworlds running in parallel.

But it still has the same issue pho's stress test - a thr1 process is
blocked in urdlck.  The improvement is that there's only one stuck
process and it took 7=BC hrs at INCARNATIONS=3D150 instead of 1-2 hours.
(And it runs out of witness locks).

--=20
Peter Jeremy

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