Hi,

Found a strange failure at btrfs-progs selftest misc/016.

It hangs at current master 63de37476ebd ("Merge tag
'tag-chrome-platform-for-v5.5' of
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux").

What makes it even more mysterious is, misc-5.5 passes.

Since there is no other btrfs pull, it's caused by some upstream
non-btrfs commits.

Doing bisecting, but any clue will be appreciated.

Thanks,
Qu