On 2014/11/28 23:40, Jiang Liu wrote: > On 2014/11/28 19:53, Borislav Petkov wrote: >> On Fri, Nov 28, 2014 at 12:33:58PM +0100, Borislav Petkov wrote: >>> On Fri, Nov 28, 2014 at 10:31:44AM +0800, Jiang Liu wrote: >>>> Thanks for tracking down to this line of change. I have no >>>> platform to reproduce this bug, so could you please help to revert this >>>> commit and apply following patch to get some data about IOAPIC entry? >>> <snit> >> >> Ok, so this is interesting: the cached data has bit 16 set which, >> AFAICT, is in one of those io redirection table registers. That bit >> masks out interrupts and if set, those get ignored. Which would explain >> the timeoutting of the ATA commands because the IRQ is masked. >> >> I don't know, though, why your cached data has bit 16 set.... > Hi Borislav, > Sorry, my previous test patch has some issue, but I think I > should have found the root cause now. Could you please try following > patch directly on top of tip/master without reverting any patch? Hi Borislav, With this patch applied, KVM with SMP kernel boots successfully now:) Regards! Gerry -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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