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SubjectRe: nouveau broken on Riva TNT2 in 5.13.0-rc4: NULL pointer dereference in nouveau_bo_sync_for_device
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Am 09.06.21 um 08:57 schrieb Ondrej Zary:
> [SNIP]
>> Thanks for the heads up. So the problem with my patch is already fixed,
>> isn't it?
> The NULL pointer dereference in nouveau_bo_wr16 introduced in
> 141b15e59175aa174ca1f7596188bd15a7ca17ba was fixed by
> aea656b0d05ec5b8ed5beb2f94c4dd42ea834e9d.
>
> That's the bug I hit when bisecting the original problem:
> NULL pointer dereference in nouveau_bo_sync_for_device
> It's caused by:
> # first bad commit: [e34b8feeaa4b65725b25f49c9b08a0f8707e8e86] drm/ttm: merge ttm_dma_tt back into ttm_tt

Good that I've asked :)

Ok that's a bit strange. e34b8feeaa4b65725b25f49c9b08a0f8707e8e86 was
created mostly automated.

Do you have the original backtrace of that NULL pointer deref once more?

Thanks,
Christian.

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