Bug 30072

Summary: Firefox 4 crashed with command stream errors on WebGL
Product: xorg Reporter: Ernst Sjöstrand <ernstp>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED WORKSFORME QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Ernst Sjöstrand 2010-09-07 15:21:36 UTC 
I'm running everything from the xorg-edgers ppa + 2.6.36-rc2 + Firefox 4.0b6
This happened a while ago with 2.6.35 also.

You have to go to about:config and set webgl.enabled_for_all_sites first

Example URL where it crashes: http://www.ibiblio.org/e-notes/webgl/julia.html

[  574.327053] radeon 0000:02:00.0: r600_cs_track_check:287 mask 0x0000000F | 0x0000000F no cb for 0
[  574.327058] radeon 0000:02:00.0: r600_packet3_check:1242 invalid cmd stream 451
[  574.327060] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
Comment 1 Gustaw Smolarczyk 2010-09-12 05:59:37 UTC 
It's also happening while trying to start Counter-Strike through wine. Note that it works the first time I start the game, but next ones are stepping onto this bug (I have to reboot my machine to play CS again).

Ubuntu Maverick + xorg-edgers + HD3870 (r600), I'm using r600c driver. Tried also with mesa from git master.

This bug was happening to me for a loong time (months), but I forgot to report it :)
Comment 2 Ernst Sjöstrand 2010-09-29 01:52:42 UTC 
This seems to have been fixed at least to some part now, several WebGL demos work fine!

Gustaw: since we have to such different scenarios I think you should open a new bug for that.

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