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* [Bug sanitizer/61604] New: missing line numbers in a sanitizer backtrace from an OMP region
@ 2014-06-25 11:24 Joost.VandeVondele at mat dot ethz.ch
2014-06-26 7:42 ` [Bug sanitizer/61604] " Joost.VandeVondele at mat dot ethz.ch
2014-12-06 9:06 ` Joost.VandeVondele at mat dot ethz.ch
0 siblings, 2 replies; 3+ messages in thread
From: Joost.VandeVondele at mat dot ethz.ch @ 2014-06-25 11:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61604
Bug ID: 61604
Summary: missing line numbers in a sanitizer backtrace from an
OMP region
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: Joost.VandeVondele at mat dot ethz.ch
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
as an example, the following program with leak:
> cat test.f90
SUBROUTINE S1()
INTEGER, POINTER, DIMENSION(:) :: a
!$OMP PARALLEL DEFAULT(PRIVATE)
ALLOCATE(a(100))
!$OMP END PARALLEL
END SUBROUTINE
PROGRAM TEST
CALL S1()
END PROGRAM TEST
yields:
> gfortran -O1 -g3 -fno-omit-frame-pointer -fsanitize=leak -fopenmp test.f90 ; export OMP_NUM_THREADS=2 ; ./a.out
=================================================================
==22952==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 400 byte(s) in 1 object(s) allocated from:
#0 0x7f3b6d8ce1bc in __interceptor_malloc
../../../../gcc/libsanitizer/lsan/lsan_interceptors.cc:66
#1 0x400865 in s1_._omp_fn.0 (/data/vjoost/gnu/bugs/a.out+0x400865)
#2 0x7f3b6e52463e in GOMP_parallel ../../../gcc/libgomp/parallel.c:167
Direct leak of 400 byte(s) in 1 object(s) allocated from:
#0 0x7f3b6d8ce1bc in __interceptor_malloc
../../../../gcc/libsanitizer/lsan/lsan_interceptors.cc:66
#1 0x400865 in s1_._omp_fn.0 (/data/vjoost/gnu/bugs/a.out+0x400865)
#2 0x7f3b6e52776d in gomp_thread_start ../../../gcc/libgomp/team.c:117
SUMMARY: LeakSanitizer: 800 byte(s) leaked in 2 allocation(s).
unfortunately, there are no line numbers but only
#1 0x400865 in s1_._omp_fn.0 (/data/vjoost/gnu/bugs/a.out+0x400865)
making it hard to find the location of the allocate, in complex code.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug sanitizer/61604] missing line numbers in a sanitizer backtrace from an OMP region
2014-06-25 11:24 [Bug sanitizer/61604] New: missing line numbers in a sanitizer backtrace from an OMP region Joost.VandeVondele at mat dot ethz.ch
@ 2014-06-26 7:42 ` Joost.VandeVondele at mat dot ethz.ch
2014-12-06 9:06 ` Joost.VandeVondele at mat dot ethz.ch
1 sibling, 0 replies; 3+ messages in thread
From: Joost.VandeVondele at mat dot ethz.ch @ 2014-06-26 7:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61604
Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |Joost.VandeVondele at mat dot ethz
| |.ch
--- Comment #1 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
for reference, valgrind yields a better trace, suggesting that the debug info
is at least available:
==5301== 400 bytes in 1 blocks are definitely lost in loss record 5 of 7
==5301== at 0x4A0534D: malloc (vg_replace_malloc.c:291)
==5301== by 0x400795: s1_._omp_fn.0 (PR61604.f90:4)
==5301== by 0x4D5D76D: gomp_thread_start (team.c:117)
==5301== by 0x3F924079D0: start_thread (in /lib64/libpthread-2.12.so)
==5301== by 0x3F918E8B6C: clone (in /lib64/libc-2.12.so)
==5301==
==5301== 400 bytes in 1 blocks are definitely lost in loss record 6 of 7
==5301== at 0x4A0534D: malloc (vg_replace_malloc.c:291)
==5301== by 0x400795: s1_._omp_fn.0 (PR61604.f90:4)
==5301== by 0x4D5A63E: GOMP_parallel (parallel.c:167)
==5301== by 0x4007C3: s1_ (PR61604.f90:1)
==5301== by 0x4007E2: main (PR61604.f90:9)
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug sanitizer/61604] missing line numbers in a sanitizer backtrace from an OMP region
2014-06-25 11:24 [Bug sanitizer/61604] New: missing line numbers in a sanitizer backtrace from an OMP region Joost.VandeVondele at mat dot ethz.ch
2014-06-26 7:42 ` [Bug sanitizer/61604] " Joost.VandeVondele at mat dot ethz.ch
@ 2014-12-06 9:06 ` Joost.VandeVondele at mat dot ethz.ch
1 sibling, 0 replies; 3+ messages in thread
From: Joost.VandeVondele at mat dot ethz.ch @ 2014-12-06 9:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61604
Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Known to work| |4.9.2, 5.0
Resolution|--- |FIXED
--- Comment #2 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
This seems now fixed.
> gfortran -O1 -g3 -fno-omit-frame-pointer -fsanitize=leak -fopenmp PR61604.f90 ; export OMP_NUM_THREADS=2 ; ./a.out
=================================================================
==30967==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 400 byte(s) in 1 object(s) allocated from:
#0 0x7fbcd1bfac06 in __interceptor_malloc
../../../../gcc/libsanitizer/lsan/lsan_interceptors.cc:51
#1 0x400865 in s1_._omp_fn.0 /data/vjoost/gnu/bugs/PR61604.f90:4
#2 0x7fbcd1a9b4ed in gomp_thread_start ../../../gcc/libgomp/team.c:117
Direct leak of 400 byte(s) in 1 object(s) allocated from:
#0 0x7fbcd1bfac06 in __interceptor_malloc
../../../../gcc/libsanitizer/lsan/lsan_interceptors.cc:51
#1 0x400865 in s1_._omp_fn.0 /data/vjoost/gnu/bugs/PR61604.f90:4
#2 0x7fbcd1a9756e in GOMP_parallel ../../../gcc/libgomp/parallel.c:167
SUMMARY: LeakSanitizer: 800 byte(s) leaked in 2 allocation(s).
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-12-06 9:06 UTC | newest]
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2014-06-25 11:24 [Bug sanitizer/61604] New: missing line numbers in a sanitizer backtrace from an OMP region Joost.VandeVondele at mat dot ethz.ch
2014-06-26 7:42 ` [Bug sanitizer/61604] " Joost.VandeVondele at mat dot ethz.ch
2014-12-06 9:06 ` Joost.VandeVondele at mat dot ethz.ch
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