Comment # 1
on bug 81907
from Christoph Haag
Some information in case someone tries to reproduce it. I applied this patch additionally to the revert: https://bugs.freedesktop.org/show_bug.cgi?id=80880#c10 Many demos work now. But the Cave Demo does not work, it hangs the GPU. I can not reproduce the original bug I posted here anymore with the patch, just the hang. It looks like this: ring 0 stalled for more than 10146msec GPU lockup (waiting for 0x000000000000a921 last fence id 0x000000000000a920 on ring 0) failed to get a new IB (-35) Saved 205 dwords of commands on ring 0. GPU softreset: 0x0000004D GRBM_STATUS = 0xE7DE5028 GRBM_STATUS_SE0 = 0xEF800002 GRBM_STATUS_SE1 = 0xEFC00002 SRBM_STATUS = 0x200000C0 SRBM_STATUS2 = 0x00000000 R_008674_CP_STALLED_STAT1 = 0x00000000 R_008678_CP_STALLED_STAT2 = 0x00010800 R_00867C_CP_BUSY_STAT = 0x00408006 R_008680_CP_STAT = 0x84038647 R_00D034_DMA_STATUS_REG = 0x44C83146 R_00D834_DMA_STATUS_REG = 0x44C83D57 VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x00000000 VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x00000000 GRBM_SOFT_RESET=0x0000DDFF SRBM_SOFT_RESET=0x00100100 GRBM_STATUS = 0x00003028 GRBM_STATUS_SE0 = 0x00000006 GRBM_STATUS_SE1 = 0x00000006 SRBM_STATUS = 0x200000C0 SRBM_STATUS2 = 0x00000000 R_008674_CP_STALLED_STAT1 = 0x00000000 R_008678_CP_STALLED_STAT2 = 0x00000000 R_00867C_CP_BUSY_STAT = 0x00000000 R_008680_CP_STAT = 0x00000000 R_00D034_DMA_STATUS_REG = 0x44C83D57 R_00D834_DMA_STATUS_REG = 0x44C83D57 GPU reset succeeded, trying to resume I'll leave this bug report open, because I have no idea if this bug will reappear once the hang is fixed.
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