Re: kern/49536: broken drm since changes on dec 14 2014

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

The following reply was made to PR kern/49536; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/49536: broken drm since changes on dec 14 2014
Date: Tue, 13 Jan 2015 16:30:18 -0600 (CST)

 Not radeon, but related:
 
 This commit:
 
   http://mail-index.netbsd.org/source-changes/2014/12/14/msg061433.html
 
 Causes X initialization to fail to complete when running a kernel using
 the UMS r128drm kernel driver from 14-Dec-2014 23:49 UTC.  It then
 proceeds to fill up the "/var" filesystem 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, ...]
 
 A UMS r128drm kernel from 14-Dec-2014 23:48 UTC produces a working X
 display.
 
 The symptoms persist in the very latest -current and in netbsd-7 following
 the pullup of the changes in the above-mentioned commit.
 
 -- 
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 | X  No HTML/proprietary data in email.   BSD just sits there and works!
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