Created attachment 43736 [details]
gdb/ut2k4 output and backraces.

ut2004(32/64bit) and doom3(32bit) are looping everytime in submenu on r300g/PageFlip. I believe that bug occured during last two weeks, but bisecting would be hard, because I was bisecting for:
https://bugs.freedesktop.org/show_bug.cgi?id=34418

And everytime supertuxkart wasnt working, ut2k4 also and vice versa, altough bugs were definitely different. Now previous bug is fixed(which affected only 64bit apps), but ut2004/doom3 got very similar behaviour(like looped video tape or something, moving forward and back), similar spam in console, but a bit different at output.
Disabling PageFLip fixes this problem definitely, but I was happpy pflip user from a long time.
Kernel is fresh D-R-T, DDX/DRM/Mesa from master.


--- UT2004 dmesg ---
[...]
[drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xe
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
[drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0x1f
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
[drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0xe
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
[drm:radeon_cs_parser_relocs] *ERROR* gem object lookup failed 0x1f
[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -2!
[...]
--- EOF UT2004 dmesg ---


--- UT2004 gdb output/backtrace ---
[...]
[Thread 0x7fffe50cd700 (LWP 5934) exited]
[New Thread 0x7fffe50cd700 (LWP 5935)]
[Thread 0x7fffe50cd700 (LWP 5935) exited]
[New Thread 0x7fffe50cd700 (LWP 5936)]
[...]
[Thread 0x7fffe50cd700 (LWP 6540) exited]
[New Thread 0x7fffe50cd700 (LWP 6541)]
radeon: The kernel rejected CS, see dmesg for more information.
[Thread 0x7fffe50cd700 (LWP 6541) exited]
[...]
Program received signal SIGINT, Interrupt.
0x00007ffff6e0a1f3 in poll () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff6e0a1f3 in poll () from /lib64/libc.so.6
#1  0x00007ffff65eac6a in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007ffff65ec2ff in xcb_wait_for_reply () from /usr/lib64/libxcb.so.1
#3  0x00007ffff684392d in _XReply () from /usr/lib64/libX11.so.6
#4  0x00007fffe6c1748c in DRI2GetBuffersWithFormat () from /opt/xorg/lib64/libGL.so.1
#5  0x00007fffe6c14bf9 in dri2GetBuffersWithFormat () from /opt/xorg/lib64/libGL.so.1
#6  0x00007fffe56de4d8 in dri2_allocate_textures () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#7  0x00007fffe56dfb77 in dri_st_framebuffer_validate () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#8  0x00007fffe573f132 in st_framebuffer_validate () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#9  0x00007fffe5740916 in st_manager_validate_framebuffers () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#10 0x00007fffe58e3c1e in st_validate_state () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#11 0x00007fffe58ebb3a in st_Clear () from /opt/xorg/lib64/dri/gallium/r300_dri.so
#12 0x0000000000d291d9 in FOpenGLRenderInterface::Clear(int, FColor, int, float, int, unsigned int) ()
#13 0x000000000069d234 in UGameEngine::Draw(UViewport*, int, unsigned char*, int*) ()
#14 0x0000000000d1d106 in USDLViewport::Repaint(int) ()
#15 0x0000000000d1ab09 in USDLClient::Tick() ()
#16 0x00000000006a0f54 in UGameEngine::Tick(float) ()
#17 0x000000000053d2a3 in CMainLoop::RunLoop() ()
#18 0x000000000053344f in ?? ()
#19 0x000000000052f1a0 in main ()
--- UT2004 gdb output/backtrace ---


--- Doom3 output ---
[...]
radeon: The kernel rejected CS, see dmesg for more information.
radeon: The kernel rejected CS, see dmesg for more information
[...]
--- EOF Doom3 output ---

TIP:
For full logs, look into attachements (but nothing special in xorg.log)