Comment # 21
on bug 82455
from charlie
Created attachment 105313 [details]
GPU CP LOOKUP
I am git newest mesa code, and change PAGE_SIZE alignment.
I am closed all GPU DMA engine. R600_DMA=nodma.
but the GPU CP is locked
This time the ring index is 3. it isa DMA_INDEX_RING
[ 434.621770] radeon 0000:0a:00.0: GPU lockup CP stall for more than
5000msec
[ 434.621805] radeon 0000:0a:00.0: GPU lockup (waiting for 0x0000000000000017
last fence id 0x0000000000000016)
[ 434.621834] radeon 0000:0a:00.0: scheduling IB failed (-78).
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