Re: [PATCH] x86/hyperv: check cpu mask after interrupt has been disabled

2021-01-06 Thread Wei Liu
On Tue, Jan 05, 2021 at 06:20:05PM +, Michael Kelley wrote: > From: Wei Liu Sent: Tuesday, January 5, 2021 9:51 AM > > > > We've observed crashes due to an empty cpu mask in > > hyperv_flush_tlb_others. Obviously the cpu mask in question is changed > > between the cpumask_empty call at the b

RE: [PATCH] x86/hyperv: check cpu mask after interrupt has been disabled

2021-01-05 Thread Michael Kelley
From: Wei Liu Sent: Tuesday, January 5, 2021 9:51 AM > > We've observed crashes due to an empty cpu mask in > hyperv_flush_tlb_others. Obviously the cpu mask in question is changed > between the cpumask_empty call at the beginning of the function and when > it is actually used later. > > One th