Soon after logging in and launching some apps, I get a hang. Although there's lots of btrfs stuff in the call traces, I think we're stuck in writeback so everything else just piles up and it all hangs indefinitely. Happening since at least 5.16.0-0.rc0.20211109gitd2f38a3c6507.9.fc36.x86_64 and is still happening with 5.16.0-0.rc0.20211111gitdebe436e77c7.11.fc36.x86_64 Full dmesg including sysrq+w when the journal becomes unresponsive and then a bunch of block tasks > 120s roll in on their own. https://bugzilla-attachments.redhat.com/attachment.cgi?id=1841283 -- Chris Murphy
