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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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