Date: Thu, 21 Feb 2008 14:06:35 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: Robert Backhaus <robbak@robbak.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: Packet corruption in re0 Message-ID: <20080221050635.GC26427@cdnetworks.co.kr> In-Reply-To: <d4499580802202047g6baec3eag564ed6f59f90d10@mail.gmail.com> References: <d4499580802201703t1dcc3143x96e85cd8e562489@mail.gmail.com> <20080221035014.GB26427@cdnetworks.co.kr> <d4499580802202047g6baec3eag564ed6f59f90d10@mail.gmail.com>
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On Thu, Feb 21, 2008 at 02:47:43PM +1000, Robert Backhaus wrote: > On Thu, Feb 21, 2008 at 1:50 PM, Pyun YongHyeon <pyunyh@gmail.com> wrote: > > On Thu, Feb 21, 2008 at 11:03:02AM +1000, Robert Backhaus wrote: > > > I am experiencing roughly 15% packet corruption on the re interface on > > > my freebsd 7/amd64 box. > > > > > > FreeBSD gw.flexi.robbak.com 7.0-PRERELEASE FreeBSD 7.0-PRERELEASE #8: > > > Tue Feb 5 09:49:55 EST 2008 > > > root@gw.flexi.robbak.com:/usr/obj/usr/src/sys/GW amd64 > > > > > > Just to make troubleshooting difficult, this problem only shows up > > > after the system has been up for roughly 36 hours, depending on the > > > amount of traffic. > > > > > > > I didn't take a look attached tcpdump files but I guess the > > instability issue was fixed in HEAD. It's not yet MFCed but > > I'll handle it in a week. > > > > Would you try re(4) in HEAD? > > > > OK, I'll do that. What is the best way to do that? csupping to "." seems a > bit drastic, and I don't do much with cvs proper. I take it that I should use > anon-cvs to grab the directory, but I don't quite know how. > Copy sys/dev/re/if_re.c, sys/pci/if_rlreg.h in HEAD to your box. Due to lack of m_defrag(9) in 7-PRERELEASE/RC, you also have to add that function to if_re.c(Copy m_defrag() in sys/kern/uipc_mbuf.c on HEAD/RELENG_7 to if_re.c). That would make it build on your box. > > > >This is possibly a bit left field - but I experienced something like > >this once, and it was due to overheating - the edges of the (large) cpu > >heatsink hung over the circuitry concerned, preventing enough airflow > >and obviously offloading heat! So maybe check for something hot nearby > >to where the realtek stuff is. > > > >Cheers > > Yes, I've been down the heat path, but the problem takes ~36 hours to recur > both if the system is turned on from cold, or simply rebooted. Mind you, > North Queensland could do with some cooling! I will take another look at the > circuitry if moving to HEAD's re doesn't fix it. -- Regards, Pyun YongHyeon
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