pmem2_map_from_existing/TEST[0-2] failed memcheck

[szadam]

ISSUE:

Environment Information

• PMDK package version(s): 50693c2
• OS(es) version(s): openSUSE15_3
• ndctl version(s): 71.1
• kernel version(s): 5.3.18-150300.59.106

Please provide a reproduction of the bug:

[pmdk_thread_1] <libpmem2>: <1> [out.c:215 out_init] src version: 1.12.1+git172.g50693c2c2
[pmdk_thread_1] <libpmem2>: <1> [out.c:223 out_init] compiled with support for Valgrind pmemcheck
[pmdk_thread_1] <libpmem2>: <1> [out.c:228 out_init] compiled with support for Valgrind helgrind
[pmdk_thread_1] <libpmem2>: <1> [out.c:233 out_init] compiled with support for Valgrind memcheck
[pmdk_thread_1] <libpmem2>: <1> [out.c:238 out_init] compiled with support for Valgrind drd
[pmdk_thread_1] <libpmem2>: <1> [out.c:243 out_init] compiled with support for shutdown state
[pmdk_thread_1] <libpmem2>: <1> [out.c:248 out_init] compiled with libndctl 63+
[pmdk_thread_1] <libpmem2>: <3> [libpmem2.c:29 libpmem2_init] 
[pmdk_thread_1] <libpmem2>: <3> [mover.c:181 mover_new] map 0x731cda0, vdm 0x731ce28
[pmdk_thread_1] <libpmem2>: <3> [mover.c:181 mover_new] map 0x731d010, vdm 0x731d098
[pmdk_thread_1] <libpmem2>: <1> [map.c:289 pmem2_map_from_existing] Provided mapping(addr 0xfff0 len 255) is already registered by libpmem2
[pmdk_thread_1] <libpmem2>: <3> [map_posix.c:580 pmem2_map_delete] map_ptr 0x1ffefff380
[pmdk_thread_1] <libpmem2>: <3> [libpmem2.c:44 libpmem2_fini] 
[pmdk_thread_1] Last 30 lines of /home/jenkins-slave/workspace/PMDK-unittests-linux-py/pmdk_1/src/test/pmem2_map_from_existing/memcheck1.log below (whole file has 39 lines):
[pmdk_thread_1] ==61806==   total heap usage: 2,554 allocs, 2,549 frees, 177,559 bytes allocated
[pmdk_thread_1] ==61806== 
[pmdk_thread_1] ==61806== 40 bytes in 1 blocks are definitely lost in loss record 1 of 5
[pmdk_thread_1] ==61806==    at 0x4C32735: malloc (vg_replace_malloc.c:393)
[pmdk_thread_1] ==61806==    by 0x453724: _Malloc (alloc.c:72)
[pmdk_thread_1] ==61806==    by 0x40EC3F: pmem2_malloc (pmem2_utils.c:21)
[pmdk_thread_1] ==61806==    by 0x40F3F1: pmem2_source_from_fd (source_posix.c:69)
[pmdk_thread_1] ==61806==    by 0x404D28: test_mapping_overlap_bottom (pmem2_map_from_existing.c:56)
[pmdk_thread_1] ==61806==    by 0x404AC6: TEST_CASE_PROCESS (unittest.h:700)
[pmdk_thread_1] ==61806==    by 0x40534E: main (pmem2_map_from_existing.c:182)
[pmdk_thread_1] ==61806== 
[pmdk_thread_1] ==61806== 144 (64 direct, 80 indirect) bytes in 1 blocks are definitely lost in loss record 5 of 5
[pmdk_thread_1] ==61806==    at 0x4C32735: malloc (vg_replace_malloc.c:393)
[pmdk_thread_1] ==61806==    by 0x453724: _Malloc (alloc.c:72)
[pmdk_thread_1] ==61806==    by 0x40EC3F: pmem2_malloc (pmem2_utils.c:21)
[pmdk_thread_1] ==61806==    by 0x408B4C: mover_new (mover.c:183)
[pmdk_thread_1] ==61806==    by 0x40A01D: pmem2_map_from_existing (map.c:274)
[pmdk_thread_1] ==61806==    by 0x404D84: test_mapping_overlap_bottom (pmem2_map_from_existing.c:59)
[pmdk_thread_1] ==61806==    by 0x404AC6: TEST_CASE_PROCESS (unittest.h:700)
[pmdk_thread_1] ==61806==    by 0x40534E: main (pmem2_map_from_existing.c:182)
[pmdk_thread_1] ==61806== 
[pmdk_thread_1] ==61806== LEAK SUMMARY:
[pmdk_thread_1] ==61806==    definitely lost: 104 bytes in 2 blocks
[pmdk_thread_1] ==61806==    indirectly lost: 80 bytes in 1 blocks
[pmdk_thread_1] ==61806==      possibly lost: 0 bytes in 0 blocks
[pmdk_thread_1] ==61806==    still reachable: 0 bytes in 0 blocks
[pmdk_thread_1] ==61806==         suppressed: 112 bytes in 2 blocks
[pmdk_thread_1] ==61806== 
[pmdk_thread_1] ==61806== For lists of detected and suppressed errors, rerun with: -s
[pmdk_thread_1] ==61806== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)

How often bug is revealed: (always, often, rare):

always

Actual behavior:

Tests failed.

Expected behavior:

Tests should pass.

Details

Additional information about Priority and Help Requested:

[grom72]

Fixed:
https://github.com/pmem/pmdk/actions/runs/5071764974/jobs/9108563633#step:6:706