"mtrr: no more MTRRs available" makes X lock up when running Firefox with ATI driver

[gjarboni]

Binary package hint: xserver-xorg-video-mach64

On a HP Proliant DL380 G3 server with 6Gb of memory running Karmic with the pae kernel these messages show up every time X is started. The X session then becomes unresponsive. This wouldn't be such a big deal, except that vmware refuses to run without being able to run Firefox.

[ 1416.069030] mtrr: no more MTRRs available
[ 1416.093754] mtrr: no MTRR for f6000000,800000 found
[ 1416.095833] mtrr: no more MTRRs available
[ 1445.025739] mtrr: no MTRR for f6000000,800000 found
[ 1754.224228] mtrr: no more MTRRs available
[ 1754.228602] mtrr: no MTRR for f6000000,800000 found
[ 1754.230629] mtrr: no more MTRRs available
[ 1779.809656] mtrr: no MTRR for f6000000,800000 found

As a workaround I'm using tightvncserver, but the keyboard mapping on that is serious messed up. But that's a separate report :)

ProblemType: Bug
Architecture: i386
Date: Wed Dec 9 03:04:39 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: vmnet vmci vmmon
Package: xserver-xorg-video-mach64 6.8.2-1
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.52-generic-pae
SourcePackage: xserver-xorg-video-mach64
Uname: Linux 2.6.31-16-generic-pae i686

[gjarboni (jmitchel)]

I need to use the hardware, so I went back to Hardy and the Xserver works fine without any tweaking. I'll be keeping the system at 8.04 while it runs vmware2, but I'll be happy to boot live CD's if someone wants me too.

BTW, a similar message appears in the dmesg:

[ 76.092016] mtrr: no more MTRRs available
[ 76.109514] mtrr: no more MTRRs available

However, I'm not getting the "no more space on device" errors.

[Bryce Harrington (bryce)]

Hi gjarboni,

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Can you try with the latest development release of Ubuntu? (ISO CD images are available from http://cdimage.ubuntu.com/releases/)

If it remains an issue, could you also attach a new /var/log/Xorg.0.log?
Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.

[gjarboni (jmitchel)]

Just got around to testing with 10.4 Beta 2 and the problem doesn't present at all. In fact the "mtrr: no more MTRRs available" message doesn't show up at all. So it's safe to say this is completely fixed.