We run all of our tests through Valgrind for every change - so it's not a
normal thing. Definitely something to do with the way they're linking
stuff together....
Ben - are you saying I need to apply that patch? Has that patch been
removed - I thought that was still in there right now....
Derek
On Tue, May 28, 2013 at 1:15 PM, Roy Stogner <royst...@ices.utexas.edu>wrote:
>
> On Tue, 28 May 2013, Derek Gaston wrote:
>
> A large project recently sucked in MOOSE (and therefore libMesh) into a
>> much larger code-base... and they are seeing issues with the new singleton
>> stuff.
>> Here's just a snippet from a debug build run through Valgrind.
>> ==9467== Invalid write of size 8
>> ==9467== at 0x61912DB:
>> __gnu_debug::_Safe_sequence_**base::_Safe_sequence_base()
>> (safe_base.h:193)
>> ==9467== by 0x9F0FB15:
>> __gnu_debug::_Safe_sequence<**std::__debug::map<int,
>> unsigned int, std::less<int>, std::allocator<std::pair<int const, unsigned
>> int>
>> > > >::_Safe_sequence() (safe_sequence.h:112)
>> ==9467== by 0x9F0FB6C: std::__debug::map<int, unsigned int,
>> std::less<int>, std::allocator<std::pair<int const, unsigned int> >
>> >::map(std::less<int>
>> const&, std::allocator<std::pair<int const, unsigned int> > const&)
>> (map.h:79)
>> ==9467== by 0x9F0543F: libMesh::Parallel::**Communicator::Communicator()
>> (in /localhome/p8d/VERA/MOOSEExt/**MOOSE/libmesh/installed/lib/**
>> libmesh_dbg.so.0.0.0)
>> ==9467== by 0x9F01AF2: libMesh::LibMeshInit::**LibMeshInit(int, char
>> const* const*, ompi_communicator_t*)
>>
>> Any ideas on stuff they can do to mitigate this?
>>
>
> I don't even have any ideas on what "this" is. They're seeing an
> invalid write from inside a *GLIBCXX_DEBUG* operation? The whole
> point of debug mode is supposed to be catching STL errors before they
> can get to that point!
>
> I don't suppose we're lucky enough that you've been able to reproduce
> this? If not then all I can think of to do is a valgrind runthrough
> of our libMesh apps in the slim hope that one triggers the same
> problem.
> ---
> Roy
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