Date: Sun, 19 May 2013 14:53:52 -0500 From: Joshua Isom <jrisom@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: More than 32 CPUs under 8.4-P Message-ID: <51992DD0.6010103@gmail.com> In-Reply-To: <1368978686.16472.25.camel@btw.pki2.com> References: <1368897188.16472.19.camel@btw.pki2.com> <51989FDA.5070302@coosemans.org> <1368978686.16472.25.camel@btw.pki2.com>
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On 5/19/2013 10:51 AM, Dennis Glatting wrote: > On Sun, 2013-05-19 at 11:48 +0200, Tijl Coosemans wrote: >> On 2013-05-18 19:13, Dennis Glatting wrote: >>> I have a 4x16=64 core server running FreeBSD 8.4-P but only two of the >>> CPUs (2x16=32) are enabled. Enabling the other 32 isn't as simple as >>> changing MAXCPU in param.h (apparently) and recompiling. >>> >>> What do I need to do to enable the other 32 cores? >> >> Try FreeBSD 9.x. MAXCPU is 64 there. >> > > Not an option. > > ZFS hangs on multi-socket systems (Tyan, Supermicro) under 9.1. ZFS does > not hang under 8.4. This (and one other 4 socket) is a production > system. > > Does this seem to describe the problem? http://www.freebsd.org/cgi/query-pr.cgi?pr=177536 You can try switching to 9-stable. Looking at the source for 8.4, it's not being fixed in the 8 series.
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