Bug#904998: libstdc++6: libtsdc++ with g++-8 hangs in std::local_Rb_tree_decrement

[Matthias Klose <doko@debian.org>]

On 30.07.2018 12:26, Alastair McKinstry wrote:
> Package: libstdc++6
> Version: 8.2.0-1
> Severity: important
> 
> With a program I'm working on, its run
> $ mpiexec -n 1 ./bin/server.exe : -n 1 ./bin/client.exe
> 
> both programs hang, with:
> 
> #0  std::local_Rb_tree_decrement (__x=0x55f54daac538) at ../../../../../src/libstdc++-v3/src/c++98/tree.cc:99
> #1  0x000055f54d04eba8 in xios::CReorderDomain::registerTrans() ()
> #2  0x000055f54cf5953f in _GLOBAL__sub_I__ZN4xios14CReorderDomainC2Ev ()
> 
> The MPI nature of the code should be irrelevant (they're independent processes, not interacting at this point but running the same piece of code)
> This code works with  g++ 7.3, but fails with 8.1/ 8.2

there are no changes in this area, afaics.  Does openmpi already build with
C++11?  But maybe not all it's reverse dependencies.