oeqa: Update cleanup code to wait for hashserv exit

We sometimes see exceptions from code seeing the hashserv DB files
being removed at directory cleanup time. Add a check to ensure the
hashserv has written the data base journal (and hence likely exited)
before cleaning up.

This will hopefully avoid errors like:

Traceback (most recent call last):
  File "[...]/meta/lib/oeqa/sdk/buildtools-cases/build.py", line 30, in test_libc
    delay = delay - 1
  File "/usr/lib/python3.6/tempfile.py", line 948, in __exit__
    self.cleanup()
  File "/usr/lib/python3.6/tempfile.py", line 952, in cleanup
    _rmtree(self.name)
  File "/usr/lib/python3.6/shutil.py", line 486, in rmtree
    _rmtree_safe_fd(fd, path, onerror)
  File "/usr/lib/python3.6/shutil.py", line 424, in _rmtree_safe_fd
    _rmtree_safe_fd(dirfd, fullname, onerror)
  File "/usr/lib/python3.6/shutil.py", line 444, in _rmtree_safe_fd
    onerror(os.unlink, fullname, sys.exc_info())
  File "/usr/lib/python3.6/shutil.py", line 442, in _rmtree_safe_fd
    os.unlink(name, dir_fd=topfd)
FileNotFoundError: [Errno 2] No such file or directory: 'hashserv.db-wal'

(From OE-Core rev: 635833734b4c61e453ca9843a9fb5cecf3eb1c97)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 0b07d9add687d78495176cda0f3011c10ffa4d4b)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/lib/oeqa/selftest/context.py b/meta/lib/oeqa/selftest/context.py
index 1659926975..78c7a467e2 100644
--- a/meta/lib/oeqa/selftest/context.py
+++ b/meta/lib/oeqa/selftest/context.py
@@ -39,7 +39,7 @@ class NonConcurrentTestSuite(unittest.TestSuite):
 
 def removebuilddir(d):
     delay = 5
-    while delay and os.path.exists(d + "/bitbake.lock"):
+    while delay and (os.path.exists(d + "/bitbake.lock") or os.path.exists(d + "/cache/hashserv.db-wal")):
         time.sleep(1)
         delay = delay - 1
     # Deleting these directories takes a lot of time, use autobuilder