[LU-11032] memory leak in mdt_hsm_cdt_cleanup

• Type: New Feature
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Assignee: Qian Yingjin (Inactive)
• Reporter: Qian Yingjin (Inactive)

Description

 

During the following test with HSM, we found memory leaks bug.

sh llmount.sh
lctl set_param mdt.lustre-MDT0000.hsm_control=enabled
lhsmtool_posix --daemon --hsm-root /mnt/pcc --archive=1 /mnt/lustre
sh llmountcleanup.sh 
Stopping clients: server /mnt/lustre (opts:-f)
Stopping client server /mnt/lustre opts:-f
lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/42/gvfs
 Output information may be incomplete.
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
lt-lhsmto 29781 root 4r DIR 1273,181606 4096 144115188193296385 /mnt/lustre
lt-lhsmto 29781 root 5r DIR 1273,181606 4096 144115188193296385 /mnt/lustre
lt-lhsmto 29781 root 6r DIR 1273,181606 4096 144115188109410306 /mnt/lustre/.lustre/fid
Stopping clients: server /mnt/lustre2 (opts:-f)
Stopping /mnt/lustre-mds1 (opts:-f) on server
Stopping /mnt/lustre-ost1 (opts:-f) on server
Stopping /mnt/lustre-ost2 (opts:-f) on server
[25426.617292] LustreError: 30606:0:(class_obd.c:819:obdclass_exit()) obd_memory max: 166871290, leaked: 4
mv: cannot stat '/tmp/debug': No such file or directory
Memory leaks detected