On 22/02/2024 11:43, Hillf Danton wrote: > On Wed, 21 Feb 2024 15:38:47 +0100 Hans Verkuil <hverkuil-cisco@xxxxxxxxx> >> On 21/02/2024 15:20, Edward Adam Davis wrote: >>> After unlocking adap->lock in cec_claim_log_addrs(), cec_claim_log_addrs() may >>> re-enter, causing this issue to occur. >> >> But if it is called again, then it should hit this at the start of the function: >> >> if (WARN_ON(adap->is_configuring || adap->is_configured)) >> return; >> >> I'm still not sure what causes the KASAN hung task since I cannot seem to reproduce >> it, and because it is hard for me to find enough time to dig into this. > > Likely because of the window for initializing completion more than once [1]. > > [1] https://lore.kernel.org/lkml/00000000000054a54e0611f1bc01@xxxxxxxxxx/ I have been able to reproduce this by adding msleeps in several places. When I have some more time I will start digging into this. Regards, Hans
