[petsc-dev] [petsc-checkbuilds] PETSc blame digest (next) 2016-04-08

[Satish Balay]

This should have been sent to Toby.

I don't really understand the issue here. Its triggered by --with-debugging=0. I'm
not sure why these compilers are pointing to petscsys.h. I get slightly different message
on my laptop.

mpicc -c -fPIC  -Wall -Wwrite-strings -Wno-strict-aliasing -Wno-unknown-pragmas -fvisibility=hidden -g -O   -I/home/balay/petsc/include -I/home/balay/petsc/arch-linux2-c-opt/include -I/home/balay/soft/mpich-3.1.4/include    -MMD -MP /home/balay/petsc/src/dm/impls/plex/plextree.c -o arch-linux2-c-opt/obj/src/dm/impls/plex/plextree.o
/home/balay/petsc/src/dm/impls/plex/plextree.c: In function ‘DMPlexComputeInjectorTree’:
/home/balay/petsc/src/dm/impls/plex/plextree.c:3484:11: warning: ‘childrenMats’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   ierr = PetscFree(refPointFieldMats);CHKERRQ(ierr);
           ^
/home/balay/petsc/src/dm/impls/plex/plextree.c:3507:18: note: ‘childrenMats’ was declared here
   PetscScalar    ***childrenMats;
                  ^

Satish

On Fri, 8 Apr 2016, PETSc checkBuilds wrote:

> 
> 
> Dear PETSc developer,
> 
> This email contains listings of contributions attributed to you by
> `git blame` that caused compiler errors or warnings in PETSc automated
> testing.  Follow the links to see the full log files. Please attempt to fix
> the issues promptly or let us know at petsc-dev at mcs.anl.gov if you are unable
> to resolve the issues.
> 
> Thanks,
>   The PETSc development team
> 
> ----
> 
> warnings attributed to commit https://bitbucket.org/petsc/petsc/commits/49d7da5
> PetscMalloc: allow ptr=malloc(0) and free(ptr)
> 
>   include/petscsys.h:1157
>     [http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2016/04/08/build_next_arch-freebsd-cxx-pkgs-opt_wii.log]
>       /usr/home/balay/petsc.clone-2/include/petscsys.h:1157:88: warning: 'childrenMats' may be used uninitialized in this function [-Wmaybe-uninitialized]
>     [http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2016/04/08/build_next_arch-linux-opt-cxx-quad_grind.log]
>       /sandbox/petsc/petsc.clone-3/include/petscsys.h:1157:88: warning: 'childrenMats' may be used uninitialized in this function [-Wmaybe-uninitialized]
>     [http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2016/04/08/build_next_arch-freebsd-pkgs-opt_wii.log]
>       /usr/home/balay/petsc.clone/include/petscsys.h:1157:39: warning: 'childrenMats' may be used uninitialized in this function [-Wmaybe-uninitialized]
>     [http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2016/04/08/build_next_arch-linux-pkgs-latest_cg.log]
>       /sandbox/petsc/petsc.clone-4/include/petscsys.h:1157:25: warning: 'childrenMats' may be used uninitialized in this function [-Wmaybe-uninitialized]
>     [http://ftp.mcs.anl.gov/pub/petsc/nightlylogs/archive/2016/04/08/build_next_arch-linux-pkgs-opt_crank.log]
>       /sandbox/petsc/petsc.clone/include/petscsys.h:1157:25: warning: 'childrenMats' may be used uninitialized in this function [-Wmaybe-uninitialized]
> 
> ----
> To opt-out from receiving these messages - send a request to petsc-dev at mcs.anl.gov.
>