Re: [PATCH] x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic

2016-12-01 Thread kbuild test robot
Hi Vitaly, [auto build test WARNING on tip/x86/core] [also build test WARNING on v4.9-rc7 next-20161130] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Vitaly-Kuznetsov/x86-hyperv-Handle-unknown

Re: [PATCH] x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic

2016-12-01 Thread kbuild test robot
Hi Vitaly, [auto build test ERROR on tip/x86/core] [also build test ERROR on v4.9-rc7 next-20161130] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Vitaly-Kuznetsov/x86-hyperv-Handle-unknown-NMI

RE: [PATCH] x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic

2016-11-30 Thread KY Srinivasan
ngo Molnar ; H. Peter Anvin > > Subject: [PATCH] x86/hyperv: Handle unknown NMIs on one CPU when > unknown_nmi_panic > > There is a feature in Hyper-V (Debug-VM --InjectNonMaskableInterrupt) > which > injects NMI to the guest. Prior to WS2016 the NMI is injected to all CPUs &g

[PATCH] x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic

2016-11-30 Thread Vitaly Kuznetsov
There is a feature in Hyper-V (Debug-VM --InjectNonMaskableInterrupt) which injects NMI to the guest. Prior to WS2016 the NMI is injected to all CPUs of the guest and WS2016 injects it to CPU0 only. When unknown_nmi_panic is enabled and we'd like to do kdump we need to perform some minimal cleanup