On Wed, Dec 12, 2018 at 08:39:46AM +0800, Qu Wenruo wrote: > changelog: > v2: > - Rebase to v4.20-rc1. > - Instead commit transaction after each reloc tree merge, delay it until > merge_reloc_roots() finishes. > - This provides a more natural behavior, and reduce the unnecessary > transaction commits. > v3: > - Fix backref walk deadlock by not triggering it at all. > This also removes the need for @exec_post refactor and replace the > patch to allow @old_root unpopulated. > - Include the patch that fixes the unexpected data rsv free.
I've tested the deadlock fix but it still locks up and there are some lockdep warnings. I can't spend more time on that given the pre-merge window timing so I'm going to postpone all qgruop things until the next cycle. The deadlock fix can go to a -rc independently, so once I'm able to gather logs I'll let you know.
