So having split up my sources, I'm having trouble with shared
pointers. It seems that because of the way the sources have been split
into a number of functions, some pointer goes out of scope and gets
dereferenced twice.. I'm not sure the problem is in ViennaCL, but
something tricky is happening here at the interface between Python,
Boost and ViennaCL..
(gdb) bt
#0 0x00007ffff7829f59 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007ffff782d368 in __GI_abort () at abort.c:89
#2 0x00007ffff7866b74 in __libc_message (do_abort=do_abort@entry=2,
fmt=fmt@entry=0x7ffff7977d50 "*** Error in `%s': %s: 0x%s ***\n")
at ../sysdeps/posix/libc_fatal.c:175
#3 0x00007ffff787363a in malloc_printerr (ptr=<optimised out>,
str=0x7ffff7977f10 "double free or corruption (!prev)", action=3) at
malloc.c:4924
#4 _int_free (av=<optimised out>, p=<optimised out>, have_lock=0) at
malloc.c:3780
#5 0x00007ffff396fa45 in viennacl::tools::shared_ptr<char>::dec
(this=<optimised out>) at
/home/toby/src/viennacl/pyviennacl-dev/viennacl/tools/shared_ptr.hpp:146
#6 0x00007ffff3972df1 in ~shared_ptr (this=<optimised out>,
__in_chrg=<optimised out>) at
/home/toby/src/viennacl/pyviennacl-dev/viennacl/tools/shared_ptr.hpp:102
#7 ~mem_handle (this=<optimised out>, __in_chrg=<optimised out>) at
/home/toby/src/viennacl/pyviennacl-dev/viennacl/backend/mem_handle.hpp:62
#8 ~vector_base (this=<optimised out>, __in_chrg=<optimised out>) at
/home/toby/src/viennacl/pyviennacl-dev/viennacl/vector.hpp:359
#9 ~vector (this=<optimised out>, __in_chrg=<optimised out>) at
/home/toby/src/viennacl/pyviennacl-dev/viennacl/vector.hpp:996
....
Basically, until I've sorted this out, you won't have much luck with
testing the Ubuntu packages, if you're intending to give them a go!
Ciao,
Toby
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