Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 12/11/2015 15:08, Jan Kiszka wrote: > On 2015-11-11 14:12, Austin S Hemmelgarn wrote: >> On 2015-11-11 08:07, Paolo Bonzini wrote: >>> >>> >>> On 11/11/2015 13:47, Austin S Hemmelgarn wrote: > I just finished running a couple of tests in a KVM instance running nested on a Xen

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-11 14:12, Austin S Hemmelgarn wrote: > On 2015-11-11 08:07, Paolo Bonzini wrote: >> >> >> On 11/11/2015 13:47, Austin S Hemmelgarn wrote: >>> I just finished running a couple of tests in a KVM instance running >>> nested on a Xen HVM instance, and found no issues, so for the set as

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-11 14:12, Austin S Hemmelgarn wrote: > On 2015-11-11 08:07, Paolo Bonzini wrote: >> >> >> On 11/11/2015 13:47, Austin S Hemmelgarn wrote: >>> I just finished running a couple of tests in a KVM instance running >>> nested on a Xen HVM instance, and found no issues, so for the set as

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 12/11/2015 15:08, Jan Kiszka wrote: > On 2015-11-11 14:12, Austin S Hemmelgarn wrote: >> On 2015-11-11 08:07, Paolo Bonzini wrote: >>> >>> >>> On 11/11/2015 13:47, Austin S Hemmelgarn wrote: > I just finished running a couple of tests in a KVM instance running nested on a Xen

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-11 08:07, Paolo Bonzini wrote: On 11/11/2015 13:47, Austin S Hemmelgarn wrote: I just finished running a couple of tests in a KVM instance running nested on a Xen HVM instance, and found no issues, so for the set as a whole: Tested-by: Austin S. Hemmelgarn Now to hope the

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 11/11/2015 13:47, Austin S Hemmelgarn wrote: >> > I just finished running a couple of tests in a KVM instance running > nested on a Xen HVM instance, and found no issues, so for the set as a > whole: > > Tested-by: Austin S. Hemmelgarn > > Now to hope the equivalent fix for Xen gets into

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-10 07:22, Paolo Bonzini wrote: Yes, these can happen. The issue is that benign exceptions are delivered serially, but two of them (#DB and #AC) can also happen during exception delivery itself. The subsequent infinite stream of exceptions causes the processor to never exit guest

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-10 07:22, Paolo Bonzini wrote: Yes, these can happen. The issue is that benign exceptions are delivered serially, but two of them (#DB and #AC) can also happen during exception delivery itself. The subsequent infinite stream of exceptions causes the processor to never exit guest

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 11/11/2015 13:47, Austin S Hemmelgarn wrote: >> > I just finished running a couple of tests in a KVM instance running > nested on a Xen HVM instance, and found no issues, so for the set as a > whole: > > Tested-by: Austin S. Hemmelgarn > > Now to hope the equivalent

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-11 08:07, Paolo Bonzini wrote: On 11/11/2015 13:47, Austin S Hemmelgarn wrote: I just finished running a couple of tests in a KVM instance running nested on a Xen HVM instance, and found no issues, so for the set as a whole: Tested-by: Austin S. Hemmelgarn

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 10/11/2015 16:38, Jan Kiszka wrote: > On 2015-11-10 13:22, Paolo Bonzini wrote: >> Yes, these can happen. The issue is that benign exceptions are >> delivered serially, but two of them (#DB and #AC) can also happen >> during exception delivery itself. The subsequent infinite stream >> of

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-10 13:22, Paolo Bonzini wrote: > Yes, these can happen. The issue is that benign exceptions are > delivered serially, but two of them (#DB and #AC) can also happen > during exception delivery itself. The subsequent infinite stream > of exceptions causes the processor to never exit

[PATCH 0/3] Infinite loops in microcode while running guests

Yes, these can happen. The issue is that benign exceptions are delivered serially, but two of them (#DB and #AC) can also happen during exception delivery itself. The subsequent infinite stream of exceptions causes the processor to never exit guest mode. Paolo Eric Northup (1): KVM: x86:

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 2015-11-10 13:22, Paolo Bonzini wrote: > Yes, these can happen. The issue is that benign exceptions are > delivered serially, but two of them (#DB and #AC) can also happen > during exception delivery itself. The subsequent infinite stream > of exceptions causes the processor to never exit

Re: [PATCH 0/3] Infinite loops in microcode while running guests

On 10/11/2015 16:38, Jan Kiszka wrote: > On 2015-11-10 13:22, Paolo Bonzini wrote: >> Yes, these can happen. The issue is that benign exceptions are >> delivered serially, but two of them (#DB and #AC) can also happen >> during exception delivery itself. The subsequent infinite stream >> of

[PATCH 0/3] Infinite loops in microcode while running guests

Yes, these can happen. The issue is that benign exceptions are delivered serially, but two of them (#DB and #AC) can also happen during exception delivery itself. The subsequent infinite stream of exceptions causes the processor to never exit guest mode. Paolo Eric Northup (1): KVM: x86: