<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [bdw-u iommu] DMAR error -> GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=89360#c25">Comment # 25</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [bdw-u iommu] DMAR error -> GPU hang" href="https://bugs.freedesktop.org/show_bug.cgi?id=89360">bug 89360</a> from <a class="email" href="mailto:jmglov@gmail.com" title="Josh Glover <jmglov@gmail.com>"> Josh Glover</a> <pre>I have the same problem, and Google Chrome (as in the binary release, not Chromium) seems to trigger it. Disabling 3D rendering in X has helped, as now I get a crash and hang every couple of weeks instead of around once a day. Here's my uname output, in case it helps: Linux laurana 4.0.5-gentoo #5 SMP Tue Sep 22 09:45:32 CEST 2015 x86_64 Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz GenuineIntel GNU/Linux I'll try the 'intel_iommu=igfx_off' kernel option and see if that improves matters. Failing that, I'll disable VT-d, unless it is required by Docker. If I can provide any helpful info, please let me know and I'll be happy to do so.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>