7.1-STABLE Sun Mar 29 01:06:46 ADT 2009 Locks up ...

[John Baldwin]

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