[bitbake-devel] [PATCH] cooker: Handle inofity queue overflows more gracefully

[Richard Purdie]

If many files change and the inotify queue overflows, rather than print
a traceback, invalidate the caches and warn the user.

[YOCTO #10676]

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 bitbake/lib/bb/cooker.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 1fe693c..9999e58 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -252,6 +252,10 @@ class BBCooker:
         signal.signal(signal.SIGHUP, self.sigterm_exception)
 
     def config_notifications(self, event):
+        if event.maskname == "IN_Q_OVERFLOW":
+            bb.warn("inotify event queue overflowed, invalidating caches.")
+            self.baseconfig_valid = False
+            return
         if not event.pathname in self.configwatcher.bbwatchedfiles:
             return
         if not event.pathname in self.inotify_modified_files:
@@ -259,6 +263,10 @@ class BBCooker:
         self.baseconfig_valid = False
 
     def notifications(self, event):
+        if event.maskname == "IN_Q_OVERFLOW":
+            bb.warn("inotify event queue overflowed, invalidating caches.")
+            self.parsecache_valid = False
+            return
         if not event.pathname in self.inotify_modified_files:
             self.inotify_modified_files.append(event.pathname)
         self.parsecache_valid = False
-- 
2.7.4