[Bug 78238] New: GPU lockup on opening new tab in Chromium

[Bug 78238] New: GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

          Priority: medium
            Bug ID: 78238
          Assignee: dri-devel@lists.freedesktop.org
           Summary: GPU lockup on opening new tab in Chromium
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: russianneuromancer@ya.ru
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Created attachment 98395
  --> https://bugs.freedesktop.org/attachment.cgi?id=98395&action=edit
dmesg

If GPU blacklist is disabled in Chromium (on chrome://flags; so hardware
accelerated rendering become enabled, judging from chrome://gpu) GPU sometimes
lockup on just opening new tab (at least one time per day). After lockup I
observe same behaviour like in Bug 77892 - reset happens but X is unresponsive
except mouse.

Radeon HD 6620G, Kubuntu 14.04 x86_64, Linux 3.15rc3, X.Org Server 1.15.1,
libdrm 2.4.54+git1405030630.5126fc, Mesa 10.3~git1405030730.64c467, radeon
driver 7.3.99+git1405030730.be1469.

As I remember, this behaviour (GPU hang on opening new tab) introduced since
Linux 3.15.

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[Bug 78238] GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

--- Comment #1 from russianneuromancer@ya.ru ---
Created attachment 98396
  --> https://bugs.freedesktop.org/attachment.cgi?id=98396&action=edit
Xorg log

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[Bug 78238] GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #2)
> As I remember, this behaviour (GPU hang on opening new tab) introduced since
> Linux 3.15.

Can you confirm that, and if the problem still doesn't occur with an older
kernel, bisect?

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[Bug 78238] GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

--- Comment #3 from russianneuromancer@ya.ru ---
> Can you confirm that, and if the problem still doesn't occur with an older kernel
Yes, it doesn't occur with 3.14.3.

> bisect
Unfortunately, no.

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[Bug 78238] GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

--- Comment #4 from russianneuromancer@ya.ru ---
Created attachment 100644
  --> https://bugs.freedesktop.org/attachment.cgi?id=100644&action=edit
lockup

While GPU lockup doesn't happen anymore on opening new tab in Chromium, two
other lockups happened for me with 3.15rc7 (system idle, Firefox with simple
page without any video or HTML5 animation was opened; after three days of
uptime) and 3.15rc8 (while fullscreen video playback in VLC, OpenGL GLX output;
after five days of uptime). On latest lockup system become inaccessible via ssh
(however cursor is still moving). Please look into attached log.

Do I need to open another bugreport, to report this SUMO lockups with 3.15 that
wasn't reproducible with 3.14, or add more information here is fine?

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[Bug 78238] GPU lockup on opening new tab in Chromium

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https://bugs.freedesktop.org/show_bug.cgi?id=78238

russianneuromancer@ya.ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #5 from russianneuromancer@ya.ru ---
Not reproducible anymore with current kernel, Mesa, etc.

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