From c263daf925a7a74f7ae64b049cf3def8b298beee Mon Sep 17 00:00:00 2001

From: Jerome Marchand <jmarchan@redhat.com>

Date: Wed, 10 Jun 2020 10:28:42 +0200

Subject: [PATCH 1/4] deadlock: print a more explicit message when

 pthread_mutex_unlock can't be attached

Most likely, this happen because of a missing --binary argument. Let's

be friendly to our user and print a more useful messsage.

---

 tools/deadlock.py | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/deadlock.py b/tools/deadlock.py

index 17848720..81122adb 100755

--- a/tools/deadlock.py

+++ b/tools/deadlock.py

@@ -483,7 +483,7 @@ import time

                 pid=args.pid,

             )

         except Exception as e:

-            print('%s. Failed to attach to symbol: %s' % (str(e), symbol))

+            print('%s. Failed to attach to symbol: %s\nIs --binary argument missing?' % (str(e), symbol))

             sys.exit(1)

     for symbol in args.lock_symbols:

         try:

-- 

2.25.4