Date: Mon, 11 May 2009 12:42:44 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Cc: "Marc G. Fournier" <scrappy@hub.org>, Martin Schmidt <martisch@uos.de>, Gavin Atkinson <gavin@freebsd.org> Subject: Re: 7.1-STABLE Sun Mar 29 01:06:46 ADT 2009 Locks up ... Message-ID: <200905111242.44566.jhb@freebsd.org> In-Reply-To: <20090509193937.T10574@hub.org> References: <A98FF8D3-1486-43D4-8EE6-50F8C3DACCA1@uos.de> <1240920035.85945.7.camel@buffy.york.ac.uk> <20090509193937.T10574@hub.org>
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On Saturday 09 May 2009 6:43:16 pm Marc G. Fournier wrote: > On Tue, 28 Apr 2009, Gavin Atkinson wrote: > > > On Fri, 2009-04-24 at 20:39 +0200, Martin Schmidt wrote: > >> Hi Marc and List, > >> > >> i had similar issues with FreeBSD 7.2-PRERELEASE. Server (zfs,nfs) > >> seems to hang in intervals of about 8 hours. > >> kernel is still there but no connections can be made to nfs/ssh and > >> login on local console doesn't seem to > >> work due to incredible slowness. breaking to the debugger takes a > >> moment but works. > >> (compiling kernel with WITNESS didnt help) > >> > >> the server had been solid before with 7 stable kernel from around 19 > >> October 2008. > >> > >> I now added these lines to /boot/loader.conf > >> > >> hw.pci.enable_msi=0 > >> hw.pci.enable_msix=0 > >> > >> to disable Message Signaled Interrupts. Which are used by the 3ware > >> twa driver and igb network driver on our server. > > > > If you are willing to test further on your server, it may be helpful if > > you could determine which of those two lines in loader.conf fixes the > > problem for you. It would also be useful to provide a dmesg from the > > machine when both msi and msix are enabled. > > > > FWIW, looking at the "vmstat -i" output it appears that only the igb > > driver that are using MSI/MSIX, unless you have a reason to suspect > > otherwise? > > How do you tell that, about igb? looking at the server I have the igb > device on, it doesn't seem to say anything about that ... IRQs > 256 are MSI/MSI-X. -- John Baldwin
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