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* [Bug fortran/109003] New: memory leak in module loading (mio_formal_arglist)
@ 2023-03-03 7:48 rguenth at gcc dot gnu.org
2023-04-01 21:36 ` [Bug fortran/109003] " aldot at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-03-03 7:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109003
Bug ID: 109003
Summary: memory leak in module loading (mio_formal_arglist)
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: rguenth at gcc dot gnu.org
Target Milestone: ---
valgrind complains when building SPEC 2017 521.wrf
==24177== 32 bytes in 2 blocks are possibly lost in loss record 66 of 2,272
==24177== at 0x4C39571: calloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24177== by 0x1C071F0: xcalloc (xmalloc.c:164)
==24177== by 0x766248: mio_formal_arglist (module.cc:3201)
==24177== by 0x766248: mio_symbol(gfc_symbol*) (module.cc:4586)
==24177== by 0x766836: load_needed(pointer_info*) (module.cc:5195)
==24177== by 0x7667E0: load_needed(pointer_info*) (module.cc:5154)
==24177== by 0x7667D5: load_needed(pointer_info*) (module.cc:5153)
==24177== by 0x7667D5: load_needed(pointer_info*) (module.cc:5153)
==24177== by 0x7667E0: load_needed(pointer_info*) (module.cc:5154)
==24177== by 0x7667D5: load_needed(pointer_info*) (module.cc:5153)
==24177== by 0x7667D5: load_needed(pointer_info*) (module.cc:5153)
==24177== by 0x7667D5: load_needed(pointer_info*) (module.cc:5153)
==24177== by 0x767C0B: read_module() (module.cc:5697)
I'm not sure what actually happens, but I guess sym->formal is eventually
replaced so the allocated memory gets dangling? Or we free some of the
module memory later but not everything.
It seems valgrind complains about a lot of leaks when modules are involved.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug fortran/109003] memory leak in module loading (mio_formal_arglist)
2023-03-03 7:48 [Bug fortran/109003] New: memory leak in module loading (mio_formal_arglist) rguenth at gcc dot gnu.org
@ 2023-04-01 21:36 ` aldot at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: aldot at gcc dot gnu.org @ 2023-04-01 21:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109003
Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aldot at gcc dot gnu.org
--- Comment #1 from Bernhard Reutner-Fischer <aldot at gcc dot gnu.org> ---
Sounds familiar, i thought i've fixed this already some time ago?
^ permalink raw reply [flat|nested] 2+ messages in thread
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2023-03-03 7:48 [Bug fortran/109003] New: memory leak in module loading (mio_formal_arglist) rguenth at gcc dot gnu.org
2023-04-01 21:36 ` [Bug fortran/109003] " aldot at gcc dot gnu.org
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