Hello, On Sat, 12 Dec 2020 at 08:11, Kalle Valo <kvalo@xxxxxxxxxxxxxx> wrote: > > Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> writes: > > > Hello, > > > > I've noticed the following backtrace during shutdown stage when > > rebooting RB5 board, > > using linux-next/master: > > > > [ 31.060483] ath11k_pci 0000:01:00.0: shutdown > > [ 31.067844] ------------[ cut here ]------------ > > [ 31.073111] WARNING: CPU: 4 PID: 101 at > > drivers/iommu/io-pgtable-arm.c:583 __arm_lpae_unmap+0x39c/0x550 > > Do you have CONFIG_DMA_API_DEBUG disabled? There is one commit fixing a > DMA API debug warning but that should be in linux-next already: > > cd6181ff7e93 ath11k: dp_rx: fix monitor status dma unmap direction I have enabled CONFIG_DMA_API_DEBUG (and _SG too). Got no additional traces during boot and the same trace during reboot. -- With best wishes Dmitry
