[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [xen-4.1-testing test] 9805: regressions - FAIL
On 17.11.2011 10:06, Keir Fraser wrote: > On 17/11/2011 08:32, "Jan Beulich" <JBeulich@xxxxxxxx> wrote: > >> This is due to a bad backport of c/s 24007:0526644ad2a6: In -unstable, >> evtchn_unmask() must be called with d->event_lock held, while in 4.1 >> the function acquires the lock (and now gets called with the lock already >> held from do_physdev_op()'s case PHYSDEVOP_eoi). The change dates >> back to 23573:584c2e5e03d9, which hardly is a candidate for backporting >> (but maybe the locking change needs to be pulled out of there). > > Interestingly, Ubuntu's 4.1 fix has exactly the same problem. > Hm, yes we should. I am pretty sure I hit that code path often enough, Wonder why I never saw any dead lock there... --Stefan > I'll revert the patch until someone has time to actually implement and test > a working patch against our vanilla 4.1-testing tree. > > -- Keir > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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