REVIEW: https://review.gluster.org/19032 (rpc-transport/rdma: Add a mutex for the list of RDMA Memory Region(MR) access) posted (#2) for review on release-3.12 by mohammed rafi kc
COMMIT: https://review.gluster.org/19032 committed in release-3.12 by \"Yi Wang\" <firstname.lastname@example.org> with a commit message- rpc-transport/rdma: Add a mutex for the list of RDMA Memory Region(MR) access
Problem: gf_rdma_device_t->all_mr is a __gf_rdma_arena_mr(includes MR content)
kind of list in the rdma rpc-transport. The rdma rpc-transport will
add/delete items to the list when MRs register, deregister, and free.
Because gf_rdma_device_t->all_mr is used by different threads
and it is not mutex protected, rdma transport maybe access obsolete
items in it.
Solution: Add a mutex protection for the gf_rdma_device_t->all_mr.
> Change-Id: I2b7de0f7aa516b90bb6f3c6aae3aadd23b243900
> BUG: 1522651
> Signed-off-by: Yi Wang <email@example.com>
(cherry picked from commit 8483ed87165c1695b513e223549d33d2d63891d9)
Signed-off-by: Yi Wang <firstname.lastname@example.org>
This bug is getting closed because a release has been made available that should address the reported issue. In case the problem is still not fixed with glusterfs-3.12.5, please open a new bug report.
glusterfs-3.12.5 has been announced on the Gluster mailinglists , packages for several distributions should become available in the near future. Keep an eye on the Gluster Users mailinglist  and the update infrastructure for your distribution.