Date: Mon, 21 Sep 2009 16:28:25 +0100 From: Andrew Brampton <brampton+freebsd-net@gmail.com> To: Ed Maste <emaste@freebsd.org> Cc: freebsd-net@freebsd.org Subject: Re: Is this a race in mbuf's refcounting? Message-ID: <d41814900909210828i3581266cqffafd57290da481a@mail.gmail.com> In-Reply-To: <20090921151318.GA27605@sandvine.com> References: <d41814900909210543p46894d83u6d814353ea1ee130@mail.gmail.com> <20090921151318.GA27605@sandvine.com>
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2009/9/21 Ed Maste <emaste@freebsd.org>: > On Mon, Sep 21, 2009 at 01:43:33PM +0100, Andrew Brampton wrote: > > Your analysis is correct; this issue also has a PR, kern/137145. > http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/137145 > > As you point out it requires that two threads have a reference to the > same non-shared mbuf. =C2=A0I had a quick look and didn't find any case o= f > this in the vanilla FreeBSD tree; if I didn't miss anything it'll > affect only 3rd party src. > > We'll need to have a look at this after 8.0 is done. > > -Ed > I didn't notice there was a PR for this. Thanks Andrew
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