From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 196161] Kernel freezes when using AVAST under nested
 virtualization
Date: Tue, 08 Aug 2017 09:14:55 +0000
Message-ID: <bug-196161-28872-TlC3dP3zXX@https.bugzilla.kernel.org/>
References: <bug-196161-28872@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=196161

--- Comment #27 from Paolo Bonzini (bonzini@gnu.org) ---
No, I cannot reproduce it.  From the logs, it seems to be a deadlock between
two callers of smp_call_function, KVM and seccomp, but it's not clear what the
two are waiting (interrupts are enabled).

It's possible that a workaround is to pin QEMU's VCPU thread to one host VCPU. 
If you're using libvirt, this is easily done by modifying the virtual machine's
XML.

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