linux-kernel - Re: [PATCH] KVM: nVMX: Fix IRQs inject to L2 which belong to L1 since race

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Message-ID: <jpg8uo4fox5.fsf@redhat.com>
Date:	Tue, 08 Jul 2014 00:35:34 -0400
From:	Bandan Das <bsd@...hat.com>
To:	Wanpeng Li <wanpeng.li@...ux.intel.com>
Cc:	Paolo Bonzini <pbonzini@...hat.com>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Gleb Natapov <gleb@...nel.org>,
	Hu Robert <robert.hu@...el.com>, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: nVMX: Fix IRQs inject to L2 which belong to L1 since race

Wanpeng Li <wanpeng.li@...ux.intel.com> writes:
...
>
> As Jan metioned in http://www.spinics.net/lists/kvm/msg105238.html, "In any case, 
> unconditionally setting KVM_REQ_EVENT seems strange and should be changed." Your 
> trick still keep the unconditionally setting KVM_REQ_EVENT which is the root cause 
> of the race there, anyway, I focus on fix the hang currently and a patch will be 
> submitted soon. 

Right, that's the plan. Once you submit an updated fix, we can always revert
this change :)
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