On Sun, Jul 05, 2009 at 01:16:24PM +0300, Michael S. Tsirkin wrote: > On Sun, Jul 05, 2009 at 12:28:30PM +0300, Avi Kivity wrote: > > On 07/02/2009 06:50 PM, Avi Kivity wrote: > >> On 07/02/2009 06:37 PM, Gregory Haskins wrote: > >>> (Applies to kvm.git/master:1f9050fd) > >>> > >>> The following is the latest attempt to fix the races in > >>> irqfd/eventfd, as > >>> well as restore DEASSIGN support. For more details, please read the > >>> patch > >>> headers. > >>> > >>> As always, this series has been tested against the kvm-eventfd unit test > >>> and everything appears to be functioning properly. You can download this > >>> test here: > >> > >> Applied, thanks. > >> > > > > ... and unapplied. There's a refcounting mismatch in irqfd_cleanup: a > > reference is taken for each irqfd, but dropped for each guest. This > > causes an oops if a guest with no irqfds is created and destroyed: > > Ugh, apparently this logic has been changed between I acked v7 of the > patches and between Avi applied v9. Will have to find the time to redo > the review - or maybe just go back to v7? Is on-demand wq creation > really that important? Avi, is it true that just reverting the last patch in series, c9a2686e39e9095772ec6453f89c417a8e166f11, fixes the issue? -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html