qemurunner: Fix stack trace generation in exception handler

Qemurunner exception handling code currently formats the stack trace
using traceback.format_exception(), with parameters introduced in python
3.10. This will fail on platforms with an older python version.

Change this to the old parameter order, still supported in current
python versions.

https://docs.python.org/3/library/traceback.html#traceback.format_exception

Fixes [YOCTO #15675]

(From OE-Core rev: 5f9ecf5f210e967594069f172728fd5b4d5b4f1d)

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 4 insertions, 2 deletions

diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index 98a11e1a2c..6cab9aa6b2 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -746,8 +746,10 @@ class LoggingThread(threading.Thread):
     def threadtarget(self):
         try:
             self.eventloop()
-        except Exception as e:
-            self.logger.warning("Exception %s in logging thread" % traceback.format_exception(e))
+        except Exception:
+            exc_type, exc_value, exc_traceback = sys.exc_info()
+            self.logger.warning("Exception %s in logging thread" %
+                                traceback.format_exception(exc_type, exc_value, exc_traceback))
         finally:
             self.teardown()