[Bug 36121] New: starting Assassin's Creed Brotherhood (in wine) causes kernel freeze

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36121

           Summary: starting Assassin's Creed Brotherhood (in wine) causes
                    kernel freeze
           Product: DRI
           Version: DRI CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: mike.kaplinskiy at gmail.com


Created an attachment (id=45461)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45461)
dmesg from the freeze

Once the game gets to the menu screen (after intros) it shows a white screen
(as expected, but for too long). After a few seconds the white screen goes
away, the fan stops, the monitor goes into standby, and the whole os is
unresponsive (no sysrq keys). Rebooting shows no sign that the kernel even
knows anything happened (in dmesg, etc).

This only occurs if you use wine with glsl=enabled. glsl=disabled shows a
semi-corrupt menu which you can exit without killing your system.

I'm on kernel 2.6.39-rc2 (built with NMI) and mesa git from 2011/04/08
(xorg-edgers ppa). The card is a Barts chip (6870), and glxinfo shows I'm using
r600g. Wine is version 1.3.17.

If it matters, the NMI never comes. The kernel is built with
CONFIG_FB_RADEON_DEBUG=y , but it's still rather quiet around the crash.

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