[Bug 12551] New: X lockup when viewing a webpage in Firefox with EXA, xf86-video-ati 6.7.194

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=12551

           Summary: X lockup when viewing a webpage in Firefox with EXA,
                    xf86-video-ati 6.7.194
           Product: xorg
           Version: 7.3
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: ghepeu at virgilio.it
         QAContact: xorg-team at lists.x.org


When I open the webpage
http://www.bbspot.com/News/2007/09/microsoft-reveals-windows-vista-sp1-will-install-xp.html
with mozilla-firefox 2.0.0.7 on a ATI Radeon X550 (RV370) 5B63 (PCIE) X locks,
the keyboard becomes unresponsive, the mouse keeps moving but the buttons don't
work anymore and I'm forced to restart the machine by logging with ssh from
another pc. X uses 100% CPU and can't be killed.
This happens when using EXA with the latest driver xf86-video-ati 6.7.194. I
couldn't reproduce the problem with XAA or with the vesa driver. I didn't try
previous releases.
TX locks when firefox starts displaying the page; I should also mention that
the first time I opened the link in a new tab without switching the focus from
the old one, and when I finally switched the webpage background (it should be
white) contained multiple repetitions of window decorations, scrollbars and
chunks of other applications with the text correctly rendered: when I refreshed
I had my first lockup.

Other software informations: xorg-server 1.4, mesa 7.0.1, drm included in
kernel 2.6.22.


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