[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Re: new netfront and occasional receive path lockup
On Tue, 2010-09-14 at 19:44 +0100, Pasi KÃrkkÃinen wrote: > On Tue, Sep 14, 2010 at 10:54:27AM -0700, Jeremy Fitzhardinge wrote: > > On 09/14/2010 01:25 AM, Ian Campbell wrote: > > > On Mon, 2010-09-13 at 20:36 +0100, Jeremy Fitzhardinge wrote: > > >> On 09/13/2010 09:08 AM, Pasi KÃrkkÃinen wrote: > > >>> On Mon, Sep 13, 2010 at 09:01:57AM -0700, Gerald Turner wrote: > > >>>> Then I restarted all domUs with use_smartpoll=0 and haven't had any > > >>>> lockups in 7 hours. > > >>>> > > >>> I think we should default xen/stable-2.6.32.x to use_smartpoll=0 for > > >>> the time being > > >>> until this is sorted out.. > > >> Agreed. > > > Should we also consider adding a netback option to disable it for the > > > system as a whole as well? Or are the issues strictly in-guest only? > > > > > > Perhaps netback should support a xenstore key to allow a toolstack to > > > configure this property per guest? > > > > It depends on what the problem is. If there's a basic problem with the > > smartpoll front<->back communication protocol then we'll probably have > > to revert the whole thing and start over. If the bug is just something > > in the frontend then we can disable it there until resolved. > > > > Fortunately I haven't pushed netfront smartpoll support upstream yet, so > > the userbase is still fairly limited. I hope. > > > > There has been quite a few people on ##xen on irc complaining about it.. > > I think the smartpoll code has ended up in Debian Squeeze 2.6.32-5-xen > kernel.. > Hopefully they'll pull the "Revert "xen/netfront: default smartpoll to on"" > soon.. I've suggested it on debian-kernel. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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