http://bugs.freedesktop.org/show_bug.cgi?id=21350
Summary: R600+DRI: lockup on starting OpenGL app (experimental
code!)
Product: DRI
Version: unspecified
Platform: x86-64 (AMD64)
OS/Version: All
Status: NEW
Severity: major
Priority: lowest
Component: DRM/Radeon
AssignedTo: dri-devel@lists.sourceforge.net
ReportedBy: zaj...@gmail.com
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 :)
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