Date: Mon, 14 Dec 2009 15:46:35 +0100 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Robert Watson <rwatson@freebsd.org> Cc: svn-src-head@freebsd.org, Luigi Rizzo <luigi@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org Subject: Re: svn commit: r200510 - head/sys/kern Message-ID: <20091214144635.GA91618@onelab2.iet.unipi.it> In-Reply-To: <alpine.BSF.2.00.0912141418090.61723@fledge.watson.org> References: <200912141223.nBECNlDZ026381@svn.freebsd.org> <alpine.BSF.2.00.0912141418090.61723@fledge.watson.org>
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On Mon, Dec 14, 2009 at 02:18:42PM +0000, Robert Watson wrote: > On Mon, 14 Dec 2009, Luigi Rizzo wrote: ... > > Together with a smaller patch committed in september, this fixes a > > bug that affects 8.0 with apps that rely on callouts to fire exactly > > in the number of ticks specified (qemu among them). > > Right now, callouts in 8.0 fire one tick late. > > > > This was discussed in september with JeffR and jhb > > Once this has burned in, is it something you would consider appropriate to > be an errata note candidate? i have no objection, but at the time someone commented that callouts do not _guarantee_ when they will run so strictly speaking this is not a bug (i do think that being always a tick late _is_ a bug). cheers luigi
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