Re: [Valgrind-users] helgrind and stlport

[Vojtech F. <voj...@se...>]

> Vojtech,
> 
> Could you please try HGDEV branch?
> 
> svn co svn://svn.valgrind.org/valgrind/branches/HGDEV valgrind && \
> cd valgrind && \
> ./autogen.sh && \
> ./configure --prefix=`pwd`/Inst && \
> make && \
> make install
> 
> --kcc

I tried and the result is ... quite different.

There showed up a problem with Python allocator and memory recycling in Python.
I will try to disable it a see what happens.

There are still errors that seem to be related with STLPort
T4: Possible data race during write of size 4 at 0xB843010
    at 0x766FE0E: void _STL::_Construct<...>(...*, ... const&) (_construct.h:97)
    by 0x766C1BF: _STL::vector<..., _STL::allocator<...> >::
                push_back(... const&) (_vector.h:333)
    by 0x766A6C4: ...our code... (layout_buffer_impl.cxx:473)

   old state: a0083ed000000000 R #SS=1 #LS=0 S33773/T2 
   new state: c0094eb000000000 W #SS=2 #LS=0 S33746/T4 S33773/T2 
   Location 0xB843010 has never been protected by any lock
   Location 0xB843010 is 432 bytes inside a block of size 512 alloc'd
    at 0x4023099: operator new(unsigned) (vg_replace_malloc.c:224)
    by 0x5AD3BA9: _STL::__stl_new(unsigned) (_new.h:86)
    by 0x5AC31DD: _STL::__new_alloc::allocate(unsigned) (_alloc.h:134)
    by 0x766FFCF: _STL::allocator<...>::allocate(unsigned, void const*)
               (_alloc.h:355)
    by 0x766FE89: _STL::vector<..., _STL::allocator<...> >::
                 _M_insert_overflow(...*, ... const&, _STL::__false_type const&, 
                 unsigned, bool) (_vector.h:130)
    by 0x766C1E7: _STL::vector<..., _STL::allocator<...> >::push_back(... 
                const&) (_vector.h:337)
    by 0x766A6C4: ...our code... (layout_buffer_impl.cxx:473)

And no there are no global data in layout_buffer_impl.cxx:473.
By the way: how shall I interpret
"new state: c0094eb000000000 W #SS=2 #LS=0 S33746/T4 S33773/T2"?

And there were also some warning:
parse_type_DIE: confused by:
 <2><149be1>: DW_TAG_structure_type
     DW_AT_abstract_ori: <149a77>	

--28862-- WARNING: Serious error when reading debug info
--28862-- When reading debug info from .../libpython2.5.so.1.0:
--28862-- parse_type_DIE: confused by the above DIE
--28862-- WARNING: Serious error when reading debug info
--28862-- When reading debug info from .../libicudata.so.36.0:
--28862-- Can't make sense of .text section mapping


Vojtech