Bug 20510

Summary:	BEGIN_RING without end at radeon_accel.c:859
Product:	xorg	Reporter:	Mikko C. <mikko.cal>
Component:	Driver/Radeon	Assignee:	xf86-video-ati maintainers <xorg-driver-ati>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium
Version:	7.4 (2008.09)
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Mikko C. 2009-03-06 10:16:17 UTC

I just updated mesa, drm, and xf86-video-ati to git.
Now, when I open a video (dragonplayer or smplayer) my Xorg.0.log gets flooded with these messages:

(EE) RADEON(0): BEGIN_RING without end at radeon_accel.c:859
(EE) RADEON(0): ADVANCE_RING without begin at radeon_accel.c:882

after a while it eventually becomes only:

(EE) RADEON(0): BEGIN_RING without end at radeon_accel.c:692


I've had two X crashes so far, but I'm not sure they are real crashes because I didn't find any evidence in the log, beside the above errors. Maybe X just restarts itself because the log dimension gets very big? I'm talking about 13-15 MB.

Anyway, my last update was Feb 26th, so something happened after that.

Comment 1 Mikko C. 2009-03-07 02:11:14 UTC

Downgrading to mesa 7.3 solves the issue.

Comment 2 Tomáš Chvátal 2009-03-07 09:54:38 UTC

I confirm this bug even on mesa-7.3
drm and driver is from trunk.

Comment 3 Tomáš Chvátal 2009-03-08 06:34:35 UTC

Also tracked this down to that it occurs only when using XV overlay. If i use opengl for rendering the video i get flickering but no errors in xorg.log

Comment 4 Alex Deucher 2009-03-15 09:12:18 UTC

should be fixed in a55ced5ee20c07e743c7c0978803fd10589c1531

Comment 5 Fabio Pedretti 2009-03-18 04:07:24 UTC

What about releasing a 6.12.1 version with this fix?

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