Bug 21350

Summary: R600+DRI: lockup on starting OpenGL app (experimental code!)
Product: DRI Reporter: Rafał Miłecki <zajec5>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED INVALID QA Contact:
Severity: major    
Priority: lowest CC: maximsch2
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Photo of locked up screen.
none
Full output of glxgears.
none
Xorg.0.log none

Description Rafał Miłecki 2009-04-23 02:18:47 UTC 
Yes, I know 3D acceleration for R6xx/R7xx is very experimental. It's not my complaining here, just wanted to document my problems to help development.

I use following stuff:

http://cgit.freedesktop.org/mesa/mesa/log/?h=r6xx-r7xx-support
commit cccd7ae6e60c2454f9b68e03ec561e9b780a065c
R6xx: Fix memory free issue and correct clip rectangle

http://cgit.freedesktop.org/~agd5f/drm/?h=r6xx-r7xx-3d
commit dec0572d6e7e2ce1c6de2315a790e8de37c589c0
Fix typo in IT_EVENT_WRITE packet checker

My problem is that about 3 seconds after calling glxgears my machine (GPU?) locks up. And I don't get even 1 frame rendered in that seconds.

After lock up I can't switch to VT, can't use CTRL+ALT+BACKSPACE, can only reboot with SysRq.

I logged on machine to get some logs. First I got top of "top":
  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 2581 root      20   0  672m  21m 6736 R   91  0.5   3:21.23 Xorg

Then checked dmesg, it's full (hundreds) of:
[drm] wait for fifo failed status : 0xA27334E0 0x00000103
[drm] wait for fifo failed status : 0xA27334E0 0x00000103
[drm] wait for fifo failed status : 0xA27334E0 0x00000103

On photo you can see part of output form starting glxgears. I started glxgears in screen, so after sshing I attached to screen and got full output.

Hope it will help in developing Mesa driver :)
Comment 1 Rafał Miłecki 2009-04-23 02:19:41 UTC 
Created attachment 25053 [details]
Photo of locked up screen.
Comment 2 Rafał Miłecki 2009-04-23 02:21:04 UTC 
Created attachment 25054 [details]
Full output of glxgears.

On photo output of glxgears is not full. It misses beginning and display locked up before last 4 lines you can see in attached log.
Comment 3 Rafał Miłecki 2009-04-23 02:23:14 UTC 
Created attachment 25055 [details]
Xorg.0.log

Nothing special here I think, you can see my card is:
ATI Mobility 34xx, M82, RV620.
Comment 4 Rafał Miłecki 2009-07-27 08:34:24 UTC 
That bug was only in r6xx-r7xx-support branch, r6xx-rewrite branch was working fine and now master is as well.

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