On Tue, Oct 22, 2024 at 3:30 AM Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx> wrote: > > On Thu, 17 Oct 2024 09:20:53 -0700 > Chia-I Wu <olvaffe@xxxxxxxxx> wrote: > > > Userspace might poll a syncobj with the query ioctl. Call > > dma_fence_enable_sw_signaling to ensure dma_fence_is_signaled returns > > true in finite time. > > > > --- > > > > panvk hits this issue when timeline semaphore is enabled. It uses the > > transfer ioctl to propagate fences. dma_fence_unwrap_merge converts the > > dma_fence_chain to a dma_fence_array. dma_fence_array_signaled never > > return true unless signaling is enabled. > > Looks like a bugfix to me. Should we add Fixes+Cc-stable tags so it > gets backported to stable branches. Thanks. v2 sent with the Fixes tag. I did not add Cc-stable because I was told it was the maintainers' decision last time.
