Date: Mon, 23 Aug 2004 13:13:04 +0200 From: "Simon L. Nielsen" <simon@FreeBSD.org> To: Doug White <dwhite@gumbysoft.com> Cc: freebsd-current@freebsd.org Subject: Re: PLEASE TEST: IPI deadlock avoidance patch Message-ID: <20040823111304.GA767@zaphod.nitro.dk> In-Reply-To: <20040822115345.Y94593@carver.gumbysoft.com> References: <20040822115345.Y94593@carver.gumbysoft.com>
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--BOKacYhQ+x31HxR3 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2004.08.22 12:05:39 -0700, Doug White wrote: > Hey folks, > > If you have a reasonably fast i386 or amd64 multiprocessor and/or > hyperthreading machine and are experiencing reproducible hangs during -j > buildwords and other highly parallel operations, please try this patch: > > http://people.freebsd.org/~dwhite/smp_rv_mtx.patch With stock CURRENT my Dual XEON test system has hung most of the time when I did a parallel buildworld. Since I applied this patch last night the system has completed 12 -j100 buildworlds, and it's still going on, without any problems :-). Thanks to all the people who have worked on this problem! :-) BTW. these tests were with the 4BSD scheduler, I'm going to try to switch to ULE soon and se how that works out. --=20 Simon L. Nielsen FreeBSD Documentation Team --BOKacYhQ+x31HxR3 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFBKdFAh9pcDSc1mlERAircAKDEYgPz8HP4ObSswF6PpI5GSmQAHQCgrNHz TY5no1TgBunNhpmdp27YScY= =obfG -----END PGP SIGNATURE----- --BOKacYhQ+x31HxR3--
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