[petsc-dev] -on_error_attach_debugger

Pierre Jolivet pierre.jolivet at enseeiht.fr
Fri Jul 3 06:10:59 CDT 2020


Hello,
(Probably nobody cares, but) it looks like -on_error_attach_debugger is neither “-malloc_dump"-clean nor valgrind-clean.

$ cd src/ksp/ksp/tutorials
$ ~/petsc/arch-darwin-c-debug-real/bin/mpiexec -n 2 valgrind --leak-check=full --show-leak-kinds=all ./ex2 -on_error_attach_debugger
Norm of error 0.000411674 iterations 7
==2074== 24 bytes in 1 blocks are still reachable in loss record 1 of 1
==2074==    at 0x483E340: memalign (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==2074==    by 0x4A80902: PetscMallocAlign (mal.c:49)
==2074==    by 0x4A822E8: PetscMallocA (mal.c:422)
==2074==    by 0x4AD2B45: PetscPushErrorHandler (err.c:161)
==2074==    by 0x4B1D47B: PetscOptionsCheckInitial_Private (init.c:545)
==2074==    by 0x4B25AE7: PetscInitialize (pinit.c:1019)
==2074==    by 0x10B4FA: main (ex2.c:31)
$ ~/petsc/arch-darwin-c-debug-real/bin/mpiexec -n 2 ./ex2 -on_error_attach_debugger -malloc_dump
Norm of error 0.000411674 iterations 7
[ 0]32 bytes PetscPushErrorHandler() line 161 in /home/john/petsc/src/sys/error/err.c
[ 1]32 bytes PetscPushErrorHandler() line 161 in /home/john/petsc/src/sys/error/err.c

Thanks,
Pierre


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