[Bug 367377] Re: High load average, disk read, no apparent reason - 2.6.28-11

[Bob Manners]

Having done some more investigation I am quite confident that this is a problem with the Intel X-Server: 
xserver-xorg-video-intel                   2:2.6.3-0ubuntu9

When UXA is selected in the xorg.conf as follows:

Section "Device"
        Identifier      "Configured Video Device"
        Driver "intel"
        Option "FramebufferCompression" "on"
        Option "AccelMethod" "UXA"
        Option "Tiling" "No"
EndSection

Then the X server slowly leaks memory until all swap is consumed, at
which point the system becomes unavailable.

If I restart the X server, all the leaked memory is recovered and swap
is empty once again.

Note that UXA is not the default AccelMethod - EXA is.  I created an
xorg.conf myself to enable UXA in order to get acceptable video
performance.  EXA performance is just awful in this X server for some
reason (can't even enable Compiz or run Google Earth with EXA).

This problem looks similar to bugs #369759 and #360319.  Note the latter
bug report claims that his happens with EXA rendering also.

-- 
High load average, disk read, no apparent reason - 2.6.28-11
https://bugs.launchpad.net/bugs/367377
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