oeqa/commands: Ensure sync can be found regardless of PATH

Avoid command not found errors shown in selftest logs due to changes to PATH
settings which also risks intermittent problems due to IO load.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 40bcae01b0be2f293dea9ab42c6b7f8f47827cf5)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

diff --git a/meta/lib/oeqa/utils/commands.py b/meta/lib/oeqa/utils/commands.py
index 8059cbce3e1138d6d46b170ccf9cc68d5ec8087a..8b3e12038d1a6973e3a1273ef64ff0fffe958cdd 100644 (file)
--- a/meta/lib/oeqa/utils/commands.py
+++ b/meta/lib/oeqa/utils/commands.py
@@ -188,7 +188,10 @@ def runCmd(command, ignore_status=False, timeout=None, assert_error=True, sync=T
     # call sync around the tests to ensure the IO queue doesn't get too large, taking any IO
     # hit here rather than in bitbake shutdown.
     if sync:
+        p = os.environ['PATH']
+        os.environ['PATH'] = "/usr/bin:/bin:/usr/sbin:/sbin:" + p
         os.system("sync")
+        os.environ['PATH'] = p
 
     result.command = command
     result.status = cmd.status