Date: Sat, 29 Jul 2006 22:01:54 +0000 From: John Birrell <jb@what-creek.com> To: Pyun YongHyeon <yongari@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/em if_em.c Message-ID: <20060729220154.GA23870@what-creek.com> In-Reply-To: <200607270043.k6R0hY8g088353@repoman.freebsd.org> References: <200607270043.k6R0hY8g088353@repoman.freebsd.org>
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On Thu, Jul 27, 2006 at 12:43:34AM +0000, Pyun YongHyeon wrote: > yongari 2006-07-27 00:43:34 UTC > > FreeBSD src repository > > Modified files: > sys/dev/em if_em.c > Log: > Prepending an mbuf after loading a DMA map results in unexpected > result. So, modify mbuf chains before loading a DMA map. > > Revision Changes Path > 1.122 +28 -31 src/sys/dev/em/if_em.c The change immediately after the one that I tested on sun4v brought the bus_dmamap_unload diagnostics back (worse than before). So much so, I had to back the change out of my P4 tree. This is the change that causes the grief: <http://perforce.freebsd.org/fileDiffView.cgi?FSPC=//depot/projects/dtrace/src/sys/dev/em/if%5fem.c&REV=6&ACT=integrate>; -- John Birrell
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