From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 121011] New: Whole system freezes randomly when booting with 'iommu=on' kernel parameter
Date: Sun, 26 Jun 2016 16:20:49 +0000 [thread overview]
Message-ID: <bug-121011-28872@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=121011
Bug ID: 121011
Summary: Whole system freezes randomly when booting with
'iommu=on' kernel parameter
Product: Virtualization
Version: unspecified
Kernel Version: 4.4.14-1-lts
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: daltonfury42@gmail.com
Regression: No
Created attachment 221211
--> https://bugzilla.kernel.org/attachment.cgi?id=221211&action=edit
output of dmesg
I am trying to run Windows 8.1 as a guest OS using KVM. It freezes probably
when the guest OS tries to use the GPU. Steps to reproduce:
1) Run Windows inside QEMU
2) Open Google Chrome, go to https://www.chromeexperiments.com/webgl and run a
experiment (so that GPU is used).
I got a stack trace in dmesg output which has been attached to this report.
Here is the lspci -vv output: https://paste.ubuntu.com/17917370/
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