On Sun, Mar 17, 2013 at 12:47:17PM +0200, Gleb Natapov wrote: > On Sun, Mar 17, 2013 at 11:45:34AM +0100, Jan Kiszka wrote: > > On 2013-03-17 09:47, Gleb Natapov wrote: > > > On Sat, Mar 16, 2013 at 09:49:07PM +0100, Jan Kiszka wrote: > > >> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > > >> > > >> If the guest didn't take the last APIC timer interrupt yet and generates > > >> another one on top, e.g. via periodic mode, we do not block the VCPU > > >> even if the guest state is halted. The reason is that > > >> apic_has_pending_timer continues to return a non-zero value. > > >> > > >> Fix this busy loop by taking the IRR content for the LVT vector in > > >> apic_has_pending_timer into account. > > >> > > > Just drop coalescing tacking for lapic interrupt. After posted interrupt > > > will be merged __apic_accept_irq() will not longer return coalescing > > > information, so the code will be dead anyway. > > > > That requires the RTC decoalescing series to go first to avoid a > > regression, no? Then let's postpone this topic for now. > > > Yes, but decoalescing will work only for RTC :( Are you proposing to drop LAPIC interrupt reinjection? -- 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
