Re: [PATCH v2] x86/hyperv: Fix kexec panic/hang issues

2021-01-05 Thread Wei Liu
On Tue, Jan 05, 2021 at 04:39:38PM +, Michael Kelley wrote: > From: Wei Liu Sent: Tuesday, January 5, 2021 5:04 AM > > > > On Mon, Dec 21, 2020 at 10:55:41PM -0800, Dexuan Cui wrote: > > > Currently the kexec kernel can panic or hang due to 2 causes: > > > > > > 1) hv_cpu_die() is not called

RE: [PATCH v2] x86/hyperv: Fix kexec panic/hang issues

2021-01-05 Thread Michael Kelley
From: Wei Liu Sent: Tuesday, January 5, 2021 5:04 AM > > On Mon, Dec 21, 2020 at 10:55:41PM -0800, Dexuan Cui wrote: > > Currently the kexec kernel can panic or hang due to 2 causes: > > > > 1) hv_cpu_die() is not called upon kexec, so the hypervisor corrupts the > > old VP Assist Pages when the

Re: [PATCH v2] x86/hyperv: Fix kexec panic/hang issues

2021-01-05 Thread Wei Liu
On Mon, Dec 21, 2020 at 10:55:41PM -0800, Dexuan Cui wrote: > Currently the kexec kernel can panic or hang due to 2 causes: > > 1) hv_cpu_die() is not called upon kexec, so the hypervisor corrupts the > old VP Assist Pages when the kexec kernel runs. The same issue is fixed > for hibernation in

RE: [PATCH v2] x86/hyperv: Fix kexec panic/hang issues

2020-12-22 Thread Michael Kelley
From: Dexuan Cui Sent: Monday, December 21, 2020 10:56 PM > > Currently the kexec kernel can panic or hang due to 2 causes: > > 1) hv_cpu_die() is not called upon kexec, so the hypervisor corrupts the > old VP Assist Pages when the kexec kernel runs. The same issue is fixed > for hibernation in

[PATCH v2] x86/hyperv: Fix kexec panic/hang issues

2020-12-21 Thread Dexuan Cui
Currently the kexec kernel can panic or hang due to 2 causes: 1) hv_cpu_die() is not called upon kexec, so the hypervisor corrupts the old VP Assist Pages when the kexec kernel runs. The same issue is fixed for hibernation in commit 421f090c819d ("x86/hyperv: Suspend/resume the VP assist page for