7.2-PRERELEASE X-server hang in "drmwtq"

Robert Noland rnoland at FreeBSD.org
Sat Apr 25 18:38:41 UTC 2009


On Sat, 2009-04-25 at 20:37 +0400, Artem Kim wrote:
> On Saturday 25 April 2009 19:18:43 Robert Noland wrote:
> > On Sat, 2009-04-25 at 16:24 +0400, Artem Kim wrote:
> > > I checked 7.2 RC2 problem still here.
> > >
> > > I found a way to reproduce the problem easily.
> > >
> > > I used KDE 4.2.2 composite manager is enabled. The problem occurs when
> > > two applications run in a way that their window to appear at the same
> > > time.
> >
> > Ok, luckily I don't think that KDE is important... compositing might be.
> > Can you give a more complete example of how to trigger the hang?  I
> > don't have any r300 based cards handy right now.  AMD is sending them
> > though, so it shouldn't be long...
> >
> > > I can reproduce the problem on the cards Radeon 9800 XT (AMD64 UP) and 
> > > Radeon X550 (AMD64 SMP).
> >
> > Are these AGP or PCI(e)?
> >
> > robert.
> 
> 	
> I'm using KDE 4.2.2 as a test.
> 
> The problem occurs only if the composite manager is enabled.
> 
> The problem occurs spontaneously when the new window is created.
> 
> A reliable way to reproduce the problem - run concurrently
> several applications that create new windows. Typically, a window appears on 
> the screen with some delay after starting the application.
> Time delays occur (drawing) of a new window depending on the application.
> 
> The problem occurs if one or more applications have opened new windows
> (the window starts to draw on the screen) at about the same time.
> You can run fast (this is important) one after another "Konqueror", "System 
> Settings", "File Manager", it is enough to reproduce the problem.
> 
> The problem looks like this:
> X-server in "drmwtq" state.
> The screen freezes or just turns off.
> The keyboard sometimes works, sometimes not.
> 
> I used a 9800 AGP at the UP and X550 PCI-E to the SMP AMD64 system.

Actually, I do have a patch that might be relevant... Try, 
http://people.freebsd.org/~rnoland/drm_radeon-copyin-fix-try2.patch

robert.

-- 
Robert Noland <rnoland at FreeBSD.org>
FreeBSD
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