On Wed, Jan 20, 2010 at 04:10:37PM +0200, Avi Kivity wrote: > On 01/19/2010 04:52 PM, Michael S. Tsirkin wrote: >> On Sun, Jan 17, 2010 at 02:42:50PM +0200, Avi Kivity wrote: >> >>> On 01/13/2010 07:12 PM, Michael S. Tsirkin wrote: >>> >>>> Deassigning irqfd and assigning back caused spurious interrupt. fix this >>>> by clearing the counter on deassign. This is on top of davidel's patch >>>> which makes clearing eventfd counter from modules possible. >>>> >>>> >>> Applied both, thanks. >>> >> Hmm, I see this in kvm master. Avi/Marcelo, since this is a bugfix, can >> you queue this patchset for 2.6.33 and 2.6.32 stable as well please? >> > > I'm uncomfortable with pushing Davide's patch into stable and possibly > causing regressions with unrelated applications. Can't a guest live > with a spurious interrupt?
Well guests mask/unmask vector on each interrupt, so this will trigger an irq storm I think. > It's not like they're unknown. Depends on the device really. In theory, if they trigger at an unfortunate time this could cause crashes. -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
