bitbake: fetch2/wget: Avoid crashing when connection drops mid checkstatus

    If an exception is raised when running host python code, the fetcher
    immediately crashes, this might be temporary depending on the servers
    reliability.

    Catch the exception when the connection was reset and try once again
    to fetch the data.

    File: '/usr/lib/python3.8/socket.py', lineno: 669, function: readinto
         0665:        if self._timeout_occurred:
         0666:            raise OSError("cannot read from timed out object")
         0667:        while True:
         0668:            try:
     *** 0669:                return self._sock.recv_into(b)
         0670:            except timeout:
         0671:                self._timeout_occurred = True
         0672:                raise
         0673:            except error as e:
    Exception: ConnectionResetError: [Errno 104] Connection reset by peer

(Bitbake rev: d0f5c5905bc664e415a05e3130dfe0ae541d8b3e)

Signed-off-by: Alejandro Enedino Hernandez Samaniego <alhe@linux.microsoft.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/bitbake/lib/bb/fetch2/wget.py b/bitbake/lib/bb/fetch2/wget.py
index 78a49676fe..6d82f3af07 100644
--- a/bitbake/lib/bb/fetch2/wget.py
+++ b/bitbake/lib/bb/fetch2/wget.py
@@ -332,6 +332,14 @@ class Wget(FetchMethod):
                 # debug for now to avoid spamming the logs in e.g. remote sstate searches
                 logger.debug2("checkstatus() urlopen failed: %s" % e)
                 return False
+        except ConnectionResetError as e:
+            if try_again:
+                logger.debug2("checkstatus: trying again")
+                return self.checkstatus(fetch, ud, d, False)
+            else:
+                # debug for now to avoid spamming the logs in e.g. remote sstate searches
+                logger.debug2("checkstatus() urlopen failed: %s" % e)
+                return False
         return True
 
     def _parse_path(self, regex, s):