Re: Xorg r128 driver errors filling "/var"

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

On Sun, 4 Jan 2015, John D. Baker wrote:

> I had an opportunity to boot -current on the machine and the behavior
> is the same.  I'm now bisecting the code to see what change induced the
> misbehavior.  Then the pull-ups to -7 can be determined.

The culprit is in this commit:

  http://mail-index.netbsd.org/source-changes/2014/12/14/msg061433.html

A UMS r128drm kernel from 14-Dec-2014 23:48 UTC produces a working X
display.

A UMS r128drm kernel from 14-Dec-2014 23:49 UTC fails to complete X
initialization and fills up "/var" with Xorg.0.log ending in a series
of messages like:

[...]
[   123.364] (II) AIGLX: Screen 0 is not DRI2 capable
[   123.364] (II) AIGLX: Screen 0 is not DRI capable
[   123.656] (II) AIGLX: Loaded and initialized /usr/X11R7/lib/modules/dri/swrast_dri.so
[   123.656] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE idle -9
[   123.813] (EE) R128(0): Idle timed out, resetting engine...
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE stop -9
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE start -9
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE idle -9
[   123.813] (EE) R128(0): Idle timed out, resetting engine...
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE stop -9
[   123.813] (EE) R128(0): R128CCEWaitForIdle: CCE start -9
[..., repeats until "/var" is out of space, ...]

Related to kern/49536 ?

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