linux-kernel - Re: KCSAN + KVM = host reset

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Date:   Fri, 10 Apr 2020 07:25:00 -0400
From:   Qian Cai <cai@....pw>
To:     Marco Elver <elver@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        "paul E. McKenney" <paulmck@...nel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>, kvm@...r.kernel.org
Subject: Re: KCSAN + KVM = host reset



> On Apr 10, 2020, at 5:47 AM, Marco Elver <elver@...gle.com> wrote:
> 
> That would contradict what you said about it working if KCSAN is
> "off". What kernel are you attempting to use in the VM?

Well, I said set KCSAN debugfs to “off” did not help, i.e., it will reset the host running kvm.sh. It is the vanilla ubuntu 18.04 kernel in VM.

github.com/cailca/linux-mm/blob/master/kvm.sh