[Libguestfs] [PATCH] daemon: Run lsof when an umount command fails in umount_all call.
Useful for debugging unmount failures. Note that we include lsof in
the appliance already.
---
daemon/mount.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/daemon/mount.c b/daemon/mount.c
index c5b7d89..e139482 100644
--- a/daemon/mount.c
+++ b/daemon/mount.c
@@ -424,6 +424,10 @@ do_umount_all (void)
r = command (NULL, &err, str_umount, mounts.argv[i], NULL);
if (r == -1) {
reply_with_error ("umount: %s: %s", mounts.argv[i], err);
+ if (verbose) {
+ /* Try running lsof to see what is holding the mountpoint open. */
+ command (NULL, NULL, "lsof", mounts.argv[i], NULL);
+ }
free_stringslen (mounts.argv, mounts.size);
return -1;
}
--
2.4.3