[PROTON-2335] Python tests appear to be leaking way too much

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: proton-c-0.34.0
• Component/s: proton-c, python-binding
• Labels: lsan
• Assignee: Unassigned
• Reporter: Jiri Daněk
• Created: 12/Feb/21 17:31
• Updated: 12/Feb/21 17:32

Description

The leaks are currently suppressed (done in PROTON-1575, PROTON-2134, PROTON-2133), but nobody checked whether some of the leaks might be causing real issues.

26: Totals: 357 tests, 356 passed, 1 skipped, 0 ignored, 0 failed
26: -----------------------------------------------------
26: Suppressions used:
26:   count      bytes template
26:       2       2304 ^pn_data$
26:       6       1728 ^pni_data_grow$
26:      34       5728 ^pn_buffer$
26:       6        768 ^pn_buffer_ensure$
26:       1         16 ^pn_error$
26:      81      10368 ^pn_list$
26:      42      21504 ^pni_map_allocate$
26:     851      57328 ^pn_object_new$
26:     132       4248 ^pni_record_create$
26:     114       1824 ^pn_stringn$
26:      23       2340 ^pn_string_grow$
26:       2      16384 ^pn_transport$
26:      44       2464 ^pn_ssl_domain$
26:      12        260 ^SWIG_Python_addvarlink$
26:    1848     313764 libcrypto.so
26:     814    2101216 bin/python3
26: -----------------------------------------------------
26: 
26/47 Test #26: python-test ......................   Passed   32.72 sec

27: OK (expected failures=4)
27: -----------------------------------------------------
27: Suppressions used:
27:   count      bytes template
27:       8      27648 ^pni_data_grow$
27:      50      19904 ^pn_buffer$
27:       6        768 ^pn_buffer_ensure$
27:       4         64 ^pn_error$
27:      36       4608 ^pn_list$
27:      32      16384 ^pni_map_allocate$
27:     402      28912 ^pn_object_new$
27:      44       1680 ^pni_record_create$
27:      65       1040 ^pn_stringn$
27:      11        980 ^pn_string_grow$
27:       8      65536 ^pn_transport$
27:      12        672 ^pn_ssl_domain$
27:     504      85572 libcrypto.so
27:     689    1379866 bin/python3
27:      42      25006 libsasl2.so
27:       4        146 sasl2/libanonymous.so
27: -----------------------------------------------------
27: 
27/47 Test #27: python-integration-test ..........   Passed   26.20 sec

For example, QPID-5872 might be caused by some of this. That issue is a leak in pni_map_allocate.