Date: Wed, 15 Jun 2016 15:18:18 +0200 From: "Herbert J. Skuhra" <herbert@mailbox.org> To: Dmitry Morozovsky <marck@rinet.ru> Cc: jhb@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Re: MAXCPU @ stable/10 Message-ID: <86bn327fqd.wl-herbert@mailbox.org> In-Reply-To: <alpine.BSF.2.00.1606151422500.92907@woozle.rinet.ru> References: <alpine.BSF.2.00.1606151422500.92907@woozle.rinet.ru>
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Dmitry Morozovsky skrev: > > John, > this commit went into -current almost 2 years ago with "MFC After: 1 month" tag > > Did something went wrong? > > ------------------------------------------------------------------------ > r270223 | jhb | 2014-08-20 20:06:24 +0400 (Wed, 20 Aug 2014) | 5 lines > > Bump MAXCPU on amd64 from 64 to 256. In practice APIC only permits 255 > CPUs (IDs 0 through 254). Getting above that limit requires x2APIC. > > MFC after: 1 month > > ------------------------------------------------------------------------ r284720 | kib | 2015-06-23 08:30:36 +0200 (tir, 23 jun 2015) | 9 lines Revert part of the r283303 (by jhb): Revert MFC of r270223, which bumped MAXCPU on amd64 from 64 to 256. The cpuset_getaffinity(2) and cpuset_setaffinity(2) check minimum set size, which now fails for binaries compiled on 10.0 with MAXCPU == 64. Submitted by: jhb PR: 200802 -- Herbert
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