Hi,
since we recently upgraded our nighlty valgrind validations to PETSc
3.9.2, valgrind found a bug in PetscOptionsFindPair_Private, called from:
PetscOptionsHasName("M_AssembleurGD_H_/pmi/cmpbib/compilation_BIB_gcc_valgrind/COMPILE_AUTO/BIBTestValidation/Ressources/opt/Test.assemblageDynamique/Ressources.Lettre_C_2016_gsf_P2B5_Z450_mp/Lettre_C_2016_gsf_P2B5_Z450_mp_A_SolveurLin_pour_solveur_","-::GIREF_NOM_PREFIXE_OPTIONS_PETSC");
valgrind complains with:
==253393== Source and destination overlap in strncat(0x1ffeff62e0,
0x1ffeff6299, 108)
==253393== at 0x4C2C976: strncat (vg_replace_strmem.c:348)
==253393== by 0x1522912F: PetscStrlcat (str.c:460)
==253393== by 0x151DE08A: PetscOptionsFindPair_Private (options.c:1361)
==253393== by 0x151DF153: PetscOptionsHasName (options.c:1502)
...
We noticed that the PETSc code has changed close from there, so maybe it
is related?
We do not have the bug with Petsc versions: {3.5.3,3.8.3} that we used
to tests with valgrind.
Thanks,
Eric
