Date: Wed, 11 Apr 2007 19:23:19 +0900 From: Pyun YongHyeon <pyunyh@gmail.com> To: Stefan Lambrev <stefan.lambrev@sun-fish.com> Cc: freebsd-stable@freebsd.org Subject: Re: watchdog network card Message-ID: <20070411102319.GC1065@cdnetworks.co.kr> In-Reply-To: <461CB2D8.7040303@sun-fish.com> References: <20060327093011.GA21070@math.jussieu.fr> <200603280747.55047.joao@matik.com.br> <20070410042415.GA50510@duncan.reilly.home> <200704100954.20900.joao@matik.com.br> <461CA204.9030700@sun-fish.com> <20070411090617.GB1065@cdnetworks.co.kr> <461CB2D8.7040303@sun-fish.com>
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On Wed, Apr 11, 2007 at 01:05:12PM +0300, Stefan Lambrev wrote: > Hi, > > -cut- > > > I thought getting latest nfe source will help but it doesn't. > > > > > > -cut- > > > > > > nfe0: watchdog timeout (missed Tx interrupts) -- recovering > > > > > > >According to the above message, it seems that you use new nfe(4). :-) > > > Yes this is is with latest nfe, but I've got watchdog timeouts with > previous version of this driver too. Without polling(4) on shared interrupt system it's expected one. > > > interrupt total rate > > > irq1: atkbd0 6660 0 > > > irq12: psm0 153054 0 > > > irq15: ata1 778797 1 > > > irq16: pcm0 2735727 7 > > > irq17: skc0 115669786 296 > > > irq18: nvidia0 24802500 63 > > > irq21: ohci0+ 2418887 6 > > > irq22: nfe0 ehci0 92319117 236 > > ^^^^^^^^^^ > >You are using shared interrut so it's possible to get occasional > >watchdog timeouts. polling(4) should fix your issue here. > > > I'll try this, and test :), It wasn't hard to generate generate watchdog > timeout. > But isn't polling bad under heavy load and busy CPU(s) ? Could be. YMMV. You couldn't also get best performance if interrupt is shared with other devices. > > > > cpu0: timer 780827522 2000 > > > Total 1019712050 2612 > > > > > > FreeBSD 6.2-STABLE i386 > > > > > > nfe0: <NVIDIA nForce4 CK804 MCP9 Networking Adapter> port 0xb000-0xb007 > > > mem 0xd5000000-0xd5000fff irq 22 at device 10.0 on pci0 > > > > > > >nfe(4) should be teached to use MSI/MSI-X for PCI-Express/PCI-X based > >adapters but it's not done yet. > > > > > > -- Regards, Pyun YongHyeon
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