[DISPATCH-1464] [test] Python triggers proton assert in system_tests_delivery_abort test

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 1.9.0
• Component/s: Tests

Environment

Fedora 29
Proton 0.29
Dispatch master now, and a week ago at commit 015c1c

• Assignee: Charles E. Rolke
• Reporter: Charles E. Rolke
• Created: 30/Oct/19 21:24
• Updated: 22/Jul/21 14:28
• Resolved: 22/Jul/21 14:28

Description

Running the test in a loop quickly (<20 passes) fails with:

41: test_05_message_route_abort_one_router (system_tests_delivery_abort.RouterTest) 
... python: /home/chug/git/qpid-proton/c/src/core/engine.c:691: 
pni_add_work: Assertion `!delivery->local.settled' failed.
1/1 Test #41: system_tests_delivery_abort ......Child aborted***Exception:   4.47 sec

python backtrace attached