> -----Original Message----- > From: Gleb Natapov [mailto:[email protected]] > Sent: Thursday, June 06, 2013 4:54 PM > To: Jan Kiszka > Cc: [email protected]; Ren, Yongjie > Subject: Regression after "Remove support for reporting coalesced APIC > IRQs" > > Hi Jan, > > I bisected [1] to f1ed0450a5fac7067590317cbf027f566b6ccbca. > Right. Before Gleb's mail, I also just did the bisection for this bug. The first bad commit is Jan's f1ed0450.
> Fortunately > further investigation showed that it is not really related to removing > APIC timer interrupt reinjection and the real problem is that we cannot > assume that __apic_accept_irq() always injects interrupts like the patch > does because the function skips interrupt injection if APIC is disabled. > This misreporting screws RTC interrupt tracking, so further RTC interrupt > are stopped to be injected. The simplest solution that I see is to revert > most of the commit and only leave APIC timer interrupt reinjection. > > If you have more elegant solution let me know. > > [1] https://bugzilla.kernel.org/show_bug.cgi?id=58931 > -- > Gleb. -- 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
