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Hello,
I'm curious if the following memory leaks are really bad. Here I will show
you may valgrind log:
And if they are serious what can be done against them...I didn't checked
MPI code yet...
==14899== Syscall param write(buf) contains uninitialised or unaddressable
byte(s)
==14899== at 0x1BA2D748: write (in /lib/libc-2.3.2.so)
==14899== by 0x805C222: mwrite (in /usr/local/bin/mpirun)
==14899== by 0x8055435: _cio_kreqfront (in /usr/local/bin/mpirun)
==14899== by 0x805DFAC: kdetach (in /usr/local/bin/mpirun)
==14899== Address 0x52BFE73C is on thread 1's stack
==14899==
==14899== ERROR SUMMARY: 127 errors from 10 contexts (suppressed: 20 from 2)
==14899== malloc/free: in use at exit: 752 bytes in 36 blocks.
==14899== malloc/free: 368 allocs, 332 frees, 34298 bytes allocated.
==14899== For counts of detected errors, rerun with: -v
==14899== searching for pointers to 36 not-freed blocks.
==14899== checked 1823500 bytes.
==14899==
==14899==
==14899== 5 bytes in 2 blocks are definitely lost in loss record 1 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804DC60: sfh_argv_break_quoted (in /usr/local/bin/mpirun)
==14899== by 0x804FF4A: parseline (in /usr/local/bin/mpirun)
==14899== by 0x804FD62: asc_bufparse (in /usr/local/bin/mpirun)
==14899==
==14899==
==14899== 6 bytes in 2 blocks are definitely lost in loss record 2 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804DEB4: sfh_argv_add (in /usr/local/bin/mpirun)
==14899== by 0x80507C3: asc_compat (in /usr/local/bin/mpirun)
==14899== by 0x804A54D: main (mpirun.c:245)
==14899==
==14899==
==14899== 8 bytes in 1 blocks are still reachable in loss record 3 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x8063849: lam_ssi_base_module_find (in /usr/local/bin/mpirun)
==14899== by 0x8057E73: lam_ssi_crlam_base_open (in /usr/local/bin/mpirun)
==14899== by 0x804ACE2: main (mpirun.c:551)
==14899==
==14899==
==14899== 12 bytes in 1 blocks are still reachable in loss record 4 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x8050171: parseline (in /usr/local/bin/mpirun)
==14899== by 0x804FD62: asc_bufparse (in /usr/local/bin/mpirun)
==14899== by 0x804B332: build_app (mpirun.c:742)
==14899==
==14899==
==14899== 12 bytes in 1 blocks are still reachable in loss record 5 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x80500CE: parseline (in /usr/local/bin/mpirun)
==14899== by 0x804FD62: asc_bufparse (in /usr/local/bin/mpirun)
==14899== by 0x804B332: build_app (mpirun.c:742)
==14899==
==14899==
==14899== 12 bytes in 1 blocks are definitely lost in loss record 6 of 16
==14899== at 0x1B9049DF: realloc (vg_replace_malloc.c:197)
==14899== by 0x804DF17: sfh_argv_add (in /usr/local/bin/mpirun)
==14899== by 0x80593E7: ndi_parse (in /usr/local/bin/mpirun)
==14899== by 0x804FFCC: parseline (in /usr/local/bin/mpirun)
==14899==
==14899==
==14899== 16 bytes in 1 blocks are still reachable in loss record 7 of 16
==14899== at 0x1B9048E1: calloc (vg_replace_malloc.c:176)
==14899== by 0x1B91F360: _dlerror_run (in /lib/libdl-2.3.2.so)
==14899== by 0x1B91F0B9: dlvsym (in /lib/libdl-2.3.2.so)
==14899== by 0x1B9308A1: __errno_location (vg_libpthread.c:2129)
==14899==
==14899==
==14899== 24 bytes in 5 blocks are still reachable in loss record 8 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804DC60: sfh_argv_break_quoted (in /usr/local/bin/mpirun)
==14899== by 0x804FF4A: parseline (in /usr/local/bin/mpirun)
==14899== by 0x804FD62: asc_bufparse (in /usr/local/bin/mpirun)
==14899==
==14899==
==14899== 32 bytes in 1 blocks are definitely lost in loss record 9 of 16
==14899== at 0x1B9049DF: realloc (vg_replace_malloc.c:197)
==14899== by 0x804DCC7: sfh_argv_break_quoted (in /usr/local/bin/mpirun)
==14899== by 0x804FF4A: parseline (in /usr/local/bin/mpirun)
==14899== by 0x804FD62: asc_bufparse (in /usr/local/bin/mpirun)
==14899==
==14899==
==14899== 48 bytes in 2 blocks are still reachable in loss record 10 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x80516D1: al_init (in /usr/local/bin/mpirun)
==14899== by 0x804F1DB: nid_parse (in /usr/local/bin/mpirun)
==14899== by 0x804AF34: build_app (mpirun.c:643)
==14899==
==14899==
==14899== 48 bytes in 2 blocks are still reachable in loss record 11 of 16
==14899== at 0x1B9049DF: realloc (vg_replace_malloc.c:197)
==14899== by 0x804DF17: sfh_argv_add (in /usr/local/bin/mpirun)
==14899== by 0x8050728: asc_compat (in /usr/local/bin/mpirun)
==14899== by 0x804A54D: main (mpirun.c:245)
==14899==
==14899==
==14899== 57 bytes in 10 blocks are still reachable in loss record 12 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804DEB4: sfh_argv_add (in /usr/local/bin/mpirun)
==14899== by 0x805065D: asc_compat (in /usr/local/bin/mpirun)
==14899== by 0x804A54D: main (mpirun.c:245)
==14899==
==14899==
==14899== 64 bytes in 1 blocks are still reachable in loss record 13 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804A8B6: main (mpirun.c:344)
==14899==
==14899==
==14899== 64 bytes in 1 blocks are still reachable in loss record 14 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x804A8A1: main (mpirun.c:343)
==14899==
==14899==
==14899== 144 bytes in 4 blocks are still reachable in loss record 15 of 16
==14899== at 0x1B903EBD: malloc (vg_replace_malloc.c:131)
==14899== by 0x805171E: al_append (in /usr/local/bin/mpirun)
==14899== by 0x8051441: asc_schedule (in /usr/local/bin/mpirun)
==14899== by 0x804B3F6: build_app (mpirun.c:772)
==14899==
==14899== LEAK SUMMARY:
==14899== definitely lost: 55 bytes in 6 blocks.
==14899== possibly lost: 0 bytes in 0 blocks.
==14899== still reachable: 497 bytes in 29 blocks.
==14899== suppressed: 200 bytes in 1 blocks.
Kind regards,
Wim
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