Re: nouveau broken on Riva TNT2 in 5.13.0-rc4: NULL pointer dereference in nouveau_bo_sync_for_device

Am 09.06.21 um 08:57 schrieb Ondrej Zary:

[SNIP]

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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.