Date: Sun, 30 Jul 2006 15:48:58 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: John Birrell <jb@what-creek.com> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, Pyun YongHyeon <yongari@FreeBSD.org> Subject: Re: cvs commit: src/sys/dev/em if_em.c Message-ID: <20060730064858.GB32731@cdnetworks.co.kr> In-Reply-To: <20060729220154.GA23870@what-creek.com> References: <200607270043.k6R0hY8g088353@repoman.freebsd.org> <20060729220154.GA23870@what-creek.com>
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On Sat, Jul 29, 2006 at 10:01:54PM +0000, John Birrell wrote: > 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>; > That's odd. Do you use VLAN with hardware tagging and the interface is in promiscuous mode? Would you should me the diagnostics trace again? -- Regards, Pyun YongHyeon
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