qa: skip chdir for fuse_mount

The use of chdir will muck up the use of nsenter with valgrind:

    2021-03-03T02:13:49.897 DEBUG:teuthology.orchestra.run.smithi144:> sudo nsenter --net=/var/run/netns/ceph-ns--home-ubuntu-cephtest-mnt.0 cd /home/ubuntu/cephtest && sudo adjust-ulimits ceph-coverage /home/ubuntu/cephtest/archive/coverage daemon-helper term env 'OPENSSL_ia32cap=~0x1000000000000000' valgrind --trace-children=no --child-silent-after-fork=yes '--soname-synonyms=somalloc=*tcmalloc*' --num-callers=50 --suppressions=/home/ubuntu/cephtest/valgrind.supp --xml=yes --xml-file=/var/log/ceph/valgrind/client.0.log --time-stamp=yes --vgdb=yes --exit-on-first-error=yes --error-exitcode=42 --tool=memcheck --leak-check=full --show-reachable=yes ceph-fuse -f --admin-socket '/var/run/ceph/$cluster-$name.$pid.asok' --id 0 /home/ubuntu/cephtest/mnt.0
    2021-03-03T02:13:49.899 DEBUG:teuthology.orchestra.run.smithi144:> sudo modprobe fuse
    2021-03-03T02:13:49.914 INFO:teuthology.orchestra.run:Running command with timeout 30
    2021-03-03T02:13:49.914 DEBUG:teuthology.orchestra.run.smithi144:> sudo mount -t fusectl /sys/fs/fuse/connections /sys/fs/fuse/connections
    2021-03-03T02:13:49.919 INFO:tasks.cephfs.fuse_mount.ceph-fuse.0.smithi144.stderr:nsenter: failed to execute cd: No such file or directory

It's not necessary to chdir at all to do the mount, so don't.

Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>

diff --git a/qa/tasks/ceph_manager.py b/qa/tasks/ceph_manager.py
index ce6fec15517ff030fc36cb50dcea9ab671201387..6bd5cd08af712c8c4730d5ecc2ec977dfed0f00b 100644 (file)
--- a/qa/tasks/ceph_manager.py
+++ b/qa/tasks/ceph_manager.py
@@ -68,7 +68,7 @@ def write_conf(ctx, conf_path=DEFAULT_CONF_PATH, cluster='ceph'):
     teuthology.feed_many_stdins_and_close(conf_fp, writes)
     run.wait(writes)
 
-def get_valgrind_args(testdir, name, preamble, v, exit_on_first_error=True):
+def get_valgrind_args(testdir, name, preamble, v, exit_on_first_error=True, cd=True):
     """
     Build a command line for running valgrind.
 
@@ -118,10 +118,10 @@ def get_valgrind_args(testdir, name, preamble, v, exit_on_first_error=True):
             '--exit-on-first-error=yes',
             '--error-exitcode=42',
         ])
-    args = [
-        'cd', testdir,
-        run.Raw('&&'),
-    ] + preamble + extra_args + v
+    args = []
+    if cd:
+        args += ['cd', testdir, run.Raw('&&')]
+    args += preamble + extra_args + v
     log.debug('running %s under valgrind with args %s', name, args)
     return args
 

diff --git a/qa/tasks/cephfs/fuse_mount.py b/qa/tasks/cephfs/fuse_mount.py
index e8279d4b47c429baeb989eb23df1124987d82654..63af624880864d0ad29cfbd83d1a09222b4d736e 100644 (file)
--- a/qa/tasks/cephfs/fuse_mount.py
+++ b/qa/tasks/cephfs/fuse_mount.py
@@ -63,7 +63,7 @@ class FuseMount(CephFSMount):
         stderr = StringIO()
         try:
             self.client_remote.run(args=script, timeout=(15*60),
-                cwd=self.test_dir, stderr=StringIO())
+                stderr=StringIO())
         except CommandFailedError:
             if 'file exists' not in stderr.getvalue().lower():
                 raise
@@ -93,15 +93,14 @@ class FuseMount(CephFSMount):
             fuse_cmd += mntopts
         fuse_cmd.append(self.hostfs_mntpt)
 
-        cwd = self.test_dir
         if self.client_config.get('valgrind') is not None:
             run_cmd = get_valgrind_args(
                 self.test_dir,
                 'client.{id}'.format(id=self.client_id),
                 run_cmd,
                 self.client_config.get('valgrind'),
+                cd=False
             )
-            cwd = None # get_valgrind_args chdir for us
 
         netns_prefix = ['sudo', 'nsenter',
                         '--net=/var/run/netns/{0}'.format(self.netns_name)]
@@ -138,7 +137,6 @@ class FuseMount(CephFSMount):
         mountcmd_stdout, mountcmd_stderr = StringIO(), StringIO()
         self.fuse_daemon = self.client_remote.run(
             args=run_cmd,
-            cwd=cwd,
             logger=log.getChild('ceph-fuse.{id}'.format(id=self.client_id)),
             stdin=run.PIPE,
             stdout=mountcmd_stdout,
@@ -218,7 +216,6 @@ class FuseMount(CephFSMount):
                 '--',
                 self.hostfs_mntpt,
             ],
-            cwd=self.test_dir,
             stdout=StringIO(),
             stderr=StringIO(),
             wait=False,
@@ -269,7 +266,7 @@ class FuseMount(CephFSMount):
                 stderr = StringIO()
                 self.client_remote.run(args=['sudo', 'chmod', '1777',
                                              self.hostfs_mntpt],
-                                       timeout=(15*60), cwd=self.test_dir,
+                                       timeout=(15*60),
                                        stderr=stderr, omit_sudo=False)
                 break
             except run.CommandFailedError:
@@ -282,7 +279,7 @@ class FuseMount(CephFSMount):
                     raise
 
     def _mountpoint_exists(self):
-        return self.client_remote.run(args=["ls", "-d", self.hostfs_mntpt], check_status=False, cwd=self.test_dir, timeout=(15*60)).exitstatus == 0
+        return self.client_remote.run(args=["ls", "-d", self.hostfs_mntpt], check_status=False, timeout=(15*60)).exitstatus == 0
 
     def umount(self, cleanup=True):
         """
@@ -299,7 +296,7 @@ class FuseMount(CephFSMount):
             stderr = StringIO()
             self.client_remote.run(args=['sudo', 'fusermount', '-u',
                                          self.hostfs_mntpt],
-                                   cwd=self.test_dir, stderr=stderr,
+                                   stderr=stderr,
                                    timeout=(30*60), omit_sudo=False)
         except run.CommandFailedError:
             if "mountpoint not found" in stderr.getvalue():