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memory leaks #11

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mgood7123 opened this issue Aug 30, 2020 · 1 comment
Open

memory leaks #11

mgood7123 opened this issue Aug 30, 2020 · 1 comment

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@mgood7123
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mgood7123 commented Aug 30, 2020 •
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please fix your memory leaks

YOUR Master branch

valgrind --leak-check=full --show-leak-kinds=all -s --track-origins=yes ./pipe_debug
==325637== Memcheck, a memory error detector
==325637== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==325637== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==325637== Command: ./pipe_debug
==325637== 
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
==325637== 
==325637== HEAP SUMMARY:
==325637==     in use at exit: 3,264 bytes in 12 blocks
==325637==   total heap usage: 874 allocs, 862 frees, 162,456,980 bytes allocated
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 1 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637==    by 0x10B879: test_pipeline_multiplier (pipe_test.c:153)
==325637==    by 0x10BE7C: pipe_run_test_suite (pipe_test.c:306)
==325637==    by 0x10C524: main (main.c:5)
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 2 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637==    by 0x10B879: test_pipeline_multiplier (pipe_test.c:153)
==325637==    by 0x10BE7C: pipe_run_test_suite (pipe_test.c:306)
==325637==    by 0x10C524: main (main.c:5)
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 3 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637==    by 0x10B879: test_pipeline_multiplier (pipe_test.c:153)
==325637==    by 0x10BE7C: pipe_run_test_suite (pipe_test.c:306)
==325637==    by 0x10C524: main (main.c:5)
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 4 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637==    by 0x10B879: test_pipeline_multiplier (pipe_test.c:153)
==325637==    by 0x10BE7C: pipe_run_test_suite (pipe_test.c:306)
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 5 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637==    by 0x10B879: test_pipeline_multiplier (pipe_test.c:153)
==325637== 
==325637== 272 bytes in 1 blocks are possibly lost in loss record 6 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C4D3: pipe_pipeline (pipe_util.c:173)
==325637== 
==325637== 544 bytes in 2 blocks are possibly lost in loss record 7 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C3B5: va_pipe_pipeline (pipe_util.c:158)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637==    by 0x10C3E8: va_pipe_pipeline (pipe_util.c:163)
==325637== 
==325637== 1,088 bytes in 4 blocks are possibly lost in loss record 8 of 8
==325637==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325637==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325637==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325637==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325637==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325637==    by 0x10BF4D: thread_create (pipe_util.c:49)
==325637==    by 0x10C16B: pipe_connect (pipe_util.c:110)
==325637==    by 0x10C1EC: pipe_parallel (pipe_util.c:123)
==325637==    by 0x10B93D: test_parallel_multiplier (pipe_test.c:175)
==325637==    by 0x10BEAA: pipe_run_test_suite (pipe_test.c:307)
==325637==    by 0x10C524: main (main.c:5)
==325637== 
==325637== LEAK SUMMARY:
==325637==    definitely lost: 0 bytes in 0 blocks
==325637==    indirectly lost: 0 bytes in 0 blocks
==325637==      possibly lost: 3,264 bytes in 12 blocks
==325637==    still reachable: 0 bytes in 0 blocks
==325637==         suppressed: 0 bytes in 0 blocks
==325637== 
==325637== ERROR SUMMARY: 8 errors from 8 contexts (suppressed: 0 from 0)
valgrind --leak-check=full --show-leak-kinds=all -s --track-origins=yes ./pipe_release
==325699== Memcheck, a memory error detector
==325699== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==325699== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==325699== Command: ./pipe_release
==325699== 
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
==325699== 
==325699== HEAP SUMMARY:
==325699==     in use at exit: 3,264 bytes in 12 blocks
==325699==   total heap usage: 1,642 allocs, 1,630 frees, 164,161,428 bytes allocated
==325699== 
==325699== 544 bytes in 2 blocks are possibly lost in loss record 1 of 3
==325699==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325699==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325699==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325699==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325699==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325699==    by 0x10B782: pipe_parallel (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10AD5C: pipe_run_test_suite (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10924C: main (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699== 
==325699== 544 bytes in 2 blocks are possibly lost in loss record 2 of 3
==325699==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325699==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325699==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325699==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325699==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325699==    by 0x10B7D1: pipe_parallel (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10AD5C: pipe_run_test_suite (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10924C: main (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699== 
==325699== 2,176 bytes in 8 blocks are possibly lost in loss record 3 of 3
==325699==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==325699==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==325699==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==325699==    by 0x4876322: allocate_stack (allocatestack.c:622)
==325699==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==325699==    by 0x10B958: pipe_pipeline (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10AB81: pipe_run_test_suite (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699==    by 0x10924C: main (in /home/smallville7123/AndroidCompositor/app/src/main/jni/GLIS/examples/pipe2/pipe_release)
==325699== 
==325699== LEAK SUMMARY:
==325699==    definitely lost: 0 bytes in 0 blocks
==325699==    indirectly lost: 0 bytes in 0 blocks
==325699==      possibly lost: 3,264 bytes in 12 blocks
==325699==    still reachable: 0 bytes in 0 blocks
==325699==         suppressed: 0 bytes in 0 blocks
==325699== 
==325699== ERROR SUMMARY: 3 errors from 3 contexts (suppressed: 0 from 0)
# do not know equivilant flags for these, attempting to specify generates unknown option
valgrind --tool=callgrind --dump-instr=yes --trace-jump=yes ./pipe_release
==325742== Callgrind, a call-graph generating cache profiler
==325742== Copyright (C) 2002-2017, and GNU GPL'd, by Josef Weidendorfer et al.
==325742== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==325742== Command: ./pipe_release
==325742== 
==325742== For interactive control, run 'callgrind_control -h'.
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
==325742== 
==325742== Events    : Ir
==325742== Collected : 506741867
==325742== 
==325742== I   refs:      506,741,867
valgrind --tool=cachegrind ./pipe_release
==325758== Cachegrind, a cache and branch-prediction profiler
==325758== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==325758== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==325758== Command: ./pipe_release
==325758== 
--325758-- warning: L3 cache found, using its data for the LL simulation.
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
==325758== 
==325758== I   refs:      525,712,605
==325758== I1  misses:          1,863
==325758== LLi misses:          1,818
==325758== I1  miss rate:        0.00%
==325758== LLi miss rate:        0.00%
==325758== 
==325758== D   refs:      224,821,010  (137,149,616 rd   + 87,671,394 wr)
==325758== D1  misses:      4,132,523  (  2,030,666 rd   +  2,101,857 wr)
==325758== LLd misses:      2,799,043  (    939,656 rd   +  1,859,387 wr)
==325758== D1  miss rate:         1.8% (        1.5%     +        2.4%  )
==325758== LLd miss rate:         1.2% (        0.7%     +        2.1%  )
==325758== 
==325758== LL refs:         4,134,386  (  2,032,529 rd   +  2,101,857 wr)
==325758== LL misses:       2,800,861  (    941,474 rd   +  1,859,387 wr)
==325758== LL miss rate:          0.4% (        0.1%     +        2.1%  )
valgrind --tool=massif ./pipe_release
==325771== Massif, a heap profiler
==325771== Copyright (C) 2003-2017, and GNU GPL'd, by Nicholas Nethercote
==325771== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==325771== Command: ./pipe_release
==325771== 
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
==325771==

my https://github.com/mgood7123/pipe that has the fix from issue 6 applied

valgrind --leak-check=full --show-leak-kinds=all -s --track-origins=yes ./pipe_debug
==324672== Memcheck, a memory error detector
==324672== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==324672== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==324672== Command: ./pipe_debug
==324672== 
basic_storage -> [  OK  ]
pipeline_multiplier -> [  OK  ]
parallel_multiplier -> [  OK  ]
issue_4 -> [  OK  ]
issue_5 -> [  OK  ]
issue_6_a -> [  OK  ]
issue_6_b -> [  OK  ]
issue_6_c -> [  OK  ]
==324672== 
==324672== HEAP SUMMARY:
==324672==     in use at exit: 3,536 bytes in 13 blocks
==324672==   total heap usage: 2,159 allocs, 2,146 frees, 168,726,704 bytes allocated
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 1 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672==    by 0x10B8EF: test_pipeline_multiplier (pipe_test.c:157)
==324672==    by 0x10CA3F: pipe_run_test_suite (pipe_test.c:449)
==324672==    by 0x10D171: main (main.c:5)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 2 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672==    by 0x10B8EF: test_pipeline_multiplier (pipe_test.c:157)
==324672==    by 0x10CA3F: pipe_run_test_suite (pipe_test.c:449)
==324672==    by 0x10D171: main (main.c:5)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 3 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672==    by 0x10B8EF: test_pipeline_multiplier (pipe_test.c:157)
==324672==    by 0x10CA3F: pipe_run_test_suite (pipe_test.c:449)
==324672==    by 0x10D171: main (main.c:5)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 4 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672==    by 0x10B8EF: test_pipeline_multiplier (pipe_test.c:157)
==324672==    by 0x10CA3F: pipe_run_test_suite (pipe_test.c:449)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 5 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672==    by 0x10B8EF: test_pipeline_multiplier (pipe_test.c:157)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 6 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D120: pipe_pipeline (pipe_util.c:173)
==324672== 
==324672== 272 bytes in 1 blocks are possibly lost in loss record 7 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10C562: thread_create (pipe_test.c:323)
==324672==    by 0x10C832: test_issue_6_c (pipe_test.c:372)
==324672==    by 0x10CB53: pipe_run_test_suite (pipe_test.c:455)
==324672==    by 0x10D171: main (main.c:5)
==324672== 
==324672== 544 bytes in 2 blocks are possibly lost in loss record 8 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10D002: va_pipe_pipeline (pipe_util.c:158)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672==    by 0x10D035: va_pipe_pipeline (pipe_util.c:163)
==324672== 
==324672== 1,088 bytes in 4 blocks are possibly lost in loss record 9 of 9
==324672==    at 0x483DD99: calloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==324672==    by 0x40149CA: allocate_dtv (dl-tls.c:286)
==324672==    by 0x40149CA: _dl_allocate_tls (dl-tls.c:532)
==324672==    by 0x4876322: allocate_stack (allocatestack.c:622)
==324672==    by 0x4876322: pthread_create@@GLIBC_2.2.5 (pthread_create.c:660)
==324672==    by 0x10CB9A: thread_create (pipe_util.c:49)
==324672==    by 0x10CDB8: pipe_connect (pipe_util.c:110)
==324672==    by 0x10CE39: pipe_parallel (pipe_util.c:123)
==324672==    by 0x10B9B3: test_parallel_multiplier (pipe_test.c:179)
==324672==    by 0x10CA6D: pipe_run_test_suite (pipe_test.c:450)
==324672==    by 0x10D171: main (main.c:5)
==324672== 
==324672== LEAK SUMMARY:
==324672==    definitely lost: 0 bytes in 0 blocks
==324672==    indirectly lost: 0 bytes in 0 blocks
==324672==      possibly lost: 3,536 bytes in 13 blocks
==324672==    still reachable: 0 bytes in 0 blocks
==324672==         suppressed: 0 bytes in 0 blocks
==324672== 
==324672== ERROR SUMMARY: 9 errors from 9 contexts (suppressed: 0 from 0)
@mgood7123 mgood7123 mentioned this issue Aug 30, 2020
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Note this only occurs in pipe_test.c and/or if you use the utilities functions.

In any case, there is a commit on https://github.com/git-blame/pipe.
This returns thread handles so that in pipe_test.c you can join the child threads and clean up resources.

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@git-blame @mgood7123