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> Subject: [PATCH Reivew 1/1] drm/amdgpu: fix use-after-free during gpu
> recovery
>
> [Why]
> [ 754.862560] refcount_t: underflow; use-after-free.
> [ 754.862898] Call Trace:
> [ 754.862903]
> [ 754.862913] amdgpu_job_free_cb+0xc2/0xe1 [amdgpu]
&
[Why]
[ 754.862560] refcount_t: underflow; use-after-free.
[ 754.862898] Call Trace:
[ 754.862903]
[ 754.862913] amdgpu_job_free_cb+0xc2/0xe1 [amdgpu]
[ 754.863543] drm_sched_main.cold+0x34/0x39 [amd_sched]
[How]
The fw_fence may be not init, check whether dma_fenc
