CA-397084 Log any user of LV at deactivate

In the extremely rare case that the LV is still in use when an attempt is made to deactivate it, it would be helpful to know what has it open. Signed-off-by: Tim Smith <[email protected]>
xapi-project · Aug 14, 2024 · 794807a · 794807a
1 parent c74ea9c
commit 794807a
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/drivers/lvutil.py b/drivers/lvutil.py
@@ -704,6 +704,13 @@ def deactivateNoRefcount(path):
 
 @lvmretry
 def _deactivate(path):
+    # Records what is using the LVM path in case there is an issue.
+    # In most cases this should be nothing.
+    try:
+        (rc, stdout, stderr) = util.doexec(['/usr/sbin/fuser', "-v", path])
+        util.SMlog(f"fuser {path} => {stdout}")
+    except:
+        pass
     text = cmd_lvm([CMD_LVCHANGE, "-an", path])