bitbake: cooker: Block SIGINT in worker processes

Blocks SIGINT in the worker processes to prevent them from running the
parent process signal handler, which causes them to deadlock under
certain circumstances.

[YOCTO #14034]

(Bitbake rev: 9f4207f4b598f549cbd4159841c720276736f23b)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 58c223c1ca..5442f7d225 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -2093,6 +2093,7 @@ class CookerParser(object):
             def init():
                 signal.signal(signal.SIGTERM, signal.SIG_DFL)
                 signal.signal(signal.SIGHUP, signal.SIG_DFL)
+                signal.signal(signal.SIGINT, signal.SIG_IGN)
                 bb.utils.set_process_name(multiprocessing.current_process().name)
                 multiprocessing.util.Finalize(None, bb.codeparser.parser_cache_save, exitpriority=1)
                 multiprocessing.util.Finalize(None, bb.fetch.fetcher_parse_save, exitpriority=1)