On 1/14/20 1:25 PM, Christoph Hellwig wrote: > On Tue, Jan 14, 2020 at 01:17:45PM -0500, Waiman Long wrote: >> The owner field is just a pointer to the task structure with the lower 3 >> bits served as flag bits. Setting owner to RWSEM_OWNER_UNKNOWN (-2) will >> stop optimistic spinning. So under what condition did the crash happen? > When running xfstests with all patches in this series except for this > one, IIRC in generic/114.
OK, I think I know where the bug is. I will send a patch to fix that. Thanks, Longman
