Date: Tue, 22 Aug 2006 09:53:22 +0200 From: "Patrick M. Hausen" <hausen@punkt.de> To: Pyun YongHyeon <pyunyh@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: ICH7 SATA and em interrupt sharing Message-ID: <20060822075322.GC72101@hugo10.ka.punkt.de> In-Reply-To: <20060822015047.GA12848@cdnetworks.co.kr> References: <20060821120052.0B25816A526@hub.freebsd.org> <200608211414.16731.matt@chronos.org.uk> <20060821132743.GC45736@hugo10.ka.punkt.de> <44E9B7C1.9010708@goodforbusiness.co.uk> <20060821142613.GI45736@hugo10.ka.punkt.de> <44E9C5B3.90604@goodforbusiness.co.uk> <20060821145328.GL45736@hugo10.ka.punkt.de> <20060821150744.GN45736@hugo10.ka.punkt.de> <20060821195202.GA57333@hugo10.ka.punkt.de> <20060822015047.GA12848@cdnetworks.co.kr>
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Hi! On Tue, Aug 22, 2006 at 10:50:47AM +0900, Pyun YongHyeon wrote: > > em0: Missing Tx completion interrupt! > > Thanks for the testing. > The above message means the patch really worked. Otherwise you > would have seen (false) watchdog errors on your system. > I guess the two possible cause of missing Tx completion interrupts > comes from a chipset bug or Tx interrupt moderation mechanism. If > Tx interrupt moderation mechanism is the cause of false watchdog > triggering we should have to fix all device drivers that have Tx > interrupt moderation capability. I'll have to check archives for > bge(4). I'll commit the em(4) patch soon. > > What you see in ssh session and lack of response for ICMP echo > request indicates other issues. I can't sure but it may not related > with network drivers at all(eg. sharing interrupt with other devices). Well, if I disable the em onboard interfaces and use the onboard fxp interface instead, everything runs smoothely. Looks like I will use this workaround for now. Etherexpress 100 cards in bulk quantities are cheap, so I can even insert a second NIC into the system. Regards, Patrick -- punkt.de GmbH Internet - Dienstleistungen - Beratung Vorholzstr. 25 Tel. 0721 9109 -0 Fax: -100 76137 Karlsruhe http://punkt.de
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