On Mon, Dec 10, 2018 at 01:21:43AM +0800, zhangxiaoxu (A) wrote: > I run the xfstest on nfsv2, the case generic/089 will failed with timeout sometimes. > > The top of the stack always on 'nlmclnt_block' function. > And the 'nlmclnt_lock' function will retry every 30s. > So, the test case is killed by the timer and failed. > > We open the nlm_debug, found that: > The client send unlock message to server, and the server handle it correct. > But no 'NLM_LCK_GRANTED' message send to the client. > > The configuration about the xfstest and nfs server: > > The local.config of the xfstest is: > export FSTYP=nfs > export TEST_DEV=192.168.240.61:/export/ext4/test > export TEST_DIR=/nfs/test > export SCRATCH_DEV=192.168.240.61:/export/ext4/scratch > export SCRATCH_MNT=/nfs/scratch > export NFS_MOUNT_OPTIONS="-o acl,rw,relatime,vers=2,lock" > > The nfs server just export the share directory. > > I don't know why this case is skip from https://wiki.linux-nfs.org/wiki/index.php/Xfstests > If any problem about the fcntl(F_SETLKW) wait so long time? I've seen intermittent generic/089 failures as well and haven't had the time to track them down. From your description it does sound like a potentialy server bug. --b.
