Created attachment 47874 [details]
backtrace of crash

The game Left 4 Dead (running in Wine) crashes in r600_set_constant_buffer if the option "Multicore rendering" is enabled.

Backtrace from Wine:

=>0 0x7b343de7 r600_set_constant_buffer+0x117(ctx=0x7c1b2728, shader=0, index=0,  buffer=0x7cc3fbfc)  [/home/sa/Programming/gfx/mesa/mesa/src/gallium/drivers/r600/r600_state_common.c:413] in  r600_dri.so (0x7c1bd880)
  1 0x7b4aecd6 st_upload_constants+0xe5(st=0x651138b8, params=0x7c11d8f8, shader_type=0) [/home/sa/Programming/gfx/mesa/mesa/src/mesa/state_tracker/st_atom_constbuf.c:92] in r600_dri.so (0x00000000)

(A backtrace made with gdb is also attached).

Not sure if it's a regression or not, the game suffered from recurring GPU hangs until just recently.

The following messages are found in the kernel log:

[15632.113691] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 32 !
[15632.113695] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.113697] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.115005] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.115007] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.115009] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.118327] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.118330] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.118331] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.121651] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.121654] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.121655] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.124992] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.124994] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.124996] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.128348] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.128351] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.128352] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
[15632.131666] [drm:evergreen_cs_packet_next_reloc] *ERROR* Relocs at 44 after relocations chunk end 36 !
[15632.131668] [drm:evergreen_packet3_check] *ERROR* bad SET_RESOURCE (tex)
[15632.131670] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !