On Fri, Oct 28, 2011 at 01:56:39PM +0100, Chris Wilson wrote: > On Fri, 28 Oct 2011 20:22:35 +0800, Yong Zhang <yong.zhang0@xxxxxxxxx> wrote: > > Hi, > > > > Just got below error on Ubuntu-11.10 (kernel: 3.0.0-12-generic), > > and after that my screen can't show normally. > > No sure if it's a known issue. > > No, that is the first time I've seen that. It looks as if the fence was > not released, or reacquired, before the the batch was executed. (There > is a later batch that also uses this buffer.) > > The fence is programmed with: > fence[15] = 04e00001 > valid, x-tiled, pitch: 512, start: 0x04e00000, size: 1048576 > > And the BLT command uses: > 0x0df006b0: 0x54300004: XY_COLOR_BLT (rgb enabled, alpha enabled, dst tile > 0) > 0x0df006b4: 0x03f00100: format 8888, pitch 256, clipping disabled > 0x0df006b8: 0x00000000: (0,0) > 0x0df006bc: 0x00140037: (55,20) > 0x0df006c0: 0x04e00000: offset 0x04e00000 > 0x0df006c4: 0x00000000: color > 0x0df006c8: 0x54f00006: XY_SRC_COPY_BLT (rgb enabled, alpha enabled, src tile 0, dst tile 0) > 0x0df006cc: 0x03cc0100: format 8888, dst pitch 256, clipping disabled > 0x0df006d0: 0x00000000: dst (0,0) > 0x0df006d4: 0x00140037: dst (55,20) > 0x0df006d8: 0x04e00000: dst offset 0x04e00000 > 0x0df006dc: 0x012c0003: src (3,300) > 0x0df006e0: 0x00000400: src pitch 1024 > 0x0df006e4: 0x08500000: src offset 0x08500000 > > So we try to perform an undefined operation and the GPU hangs. I suspect > this will be timing dependent, but if you can find a way to reproduce > it, that would be very useful. Just got it by accident when I'm browsing web with firefox & chromium, and the machine has been running for a long time. No reliable way to reproduce it for now :( Thanks, Yong _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
