Oscar Ou has uploaded this change for review. ( https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1223165?usp=email ) Change subject: Fix cid_mutex deadlock in reserve_lease_or_expire ...................................................................... Fix cid_mutex deadlock in reserve_lease_or_expire In reserve_lease_or_expire(), cid_mutex it held first. If the lease is expired, it decreases the state owner reference by calling dec_state_owner_ref(), then it turn acquires the cid_mutex inside the free_nfs4_owner(). To prevent this deadlock, dec_state_owner_ref() should be called outside the the cid_mutex. Change-Id: I29d92867548ab7bf0b74e16832f64f7138ff7fce Signed-off-by: Oscar Ou <oscarou(a)synology.com&gt; --- M src/SAL/nfs4_lease.c 1 file changed, 8 insertions(+), 8 deletions(-) git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/65/1223165/1 -- To view, visit https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/1223165?usp=email To unsubscribe, or for help writing mail filters, visit https://review.gerrithub.io/settings?usp=email Gerrit-MessageType: newchange Gerrit-Project: ffilz/nfs-ganesha Gerrit-Branch: next Gerrit-Change-Id: I29d92867548ab7bf0b74e16832f64f7138ff7fce Gerrit-Change-Number: 1223165 Gerrit-PatchSet: 1 Gerrit-Owner: Oscar Ou <oscarou(a)synology.com&gt;