linux-kernel - Re: kvm: GPF in kvm_lapic_latched

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Message-ID: <a535733a-60a8-c763-49b5-d685be7e7002@redhat.com>
Date:	Wed, 22 Jun 2016 10:36:19 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	Dmitry Vyukov <dvyukov@...gle.com>, Gleb Natapov <gleb@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>, KVM list <kvm@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, mtosatti@...hat.com,
	yoshikawa_takuya_b1@....ntt.co.jp, guangrong.xiao@...ux.intel.com,
	Eric Northup <digitaleric@...gle.com>,
	Andrew Honig <ahonig@...gle.com>
Cc:	syzkaller <syzkaller@...glegroups.com>,
	Kostya Serebryany <kcc@...gle.com>,
	Alexander Potapenko <glider@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Sasha Levin <sasha.levin@...cle.com>
Subject: Re: kvm: GPF in kvm_lapic_latched_init



On 22/06/2016 10:20, Dmitry Vyukov wrote:
>>> >> All crashes suggest that apic is NULL.
>>> >>
>>> >> On commit b06f3a168cdcd80026276898fd1fee443ef25743 (Jan 6).
> 
> Ping. Just hit it again on 67016f6cdfd079e632bbc49e33178b2d558c120a (Jun 20):

This might have been the same bug you reported yesterday in kvm_set_cr8.
 I've sent a patch to fix static keys.

Paolo