On Fri, 5 Nov 2010 11:51:36 -0700, Bryan Freed <bfr...@chromium.org> wrote: > Ah. I see 9f54107f866a25cf670f81f7c52b8c108728c6a5 in git:// > anongit.freedesktop.org/xorg/driver/xf86-video-intel, but that change looks > i830-specific. We are running i915. > > My i915_error_state looks like this in a few test runs this morning: > > localhost ~ # cd /sys/kernel/debug/dri/0/ > localhost 0 # cat i915_error_state > Time: 1288979468 s 955942 us > EIR: 0x00000000 > PGTBL_ER: 0x00000000 > INSTPM: 0x00000000 > IPEIR: 0x00000000 > IPEHR: 0x01800002 > INSTDONE: 0x7dffffc1 > ACTHD: 0x07357014
That's an old kernel, not a lot of information in the i915_error_state. 0x01800002 is MI_WAIT_FOR_EVENT. The issue is that we are doing a mode switch whilst there is a pending WAIT, so by the time the GPU executes the wait the pipe is disabled and the GPU hangs. I just this morning committed a patch to -intel that might help here. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
