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Message-ID: <20090705103857.GA3923@redhat.com> Date: Sun, 5 Jul 2009 13:38:57 +0300 From: "Michael S. Tsirkin" <mst@...hat.com> To: Avi Kivity <avi@...hat.com> Cc: Gregory Haskins <ghaskins@...ell.com>, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, davidel@...ilserver.org Subject: Re: [KVM PATCH v9 0/5] irqfd fixes and enhancements 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: Avi, I verified and it seems that reverting just the last patch in series should be enough. Comments? -- MST -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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