octave-3.0.3 crashes while executing 'expfit' ("free(): invalid pointer")

[Thomas Weber]

On Thu, Dec 25, 2008 at 08:48:22AM -0800, Sergei Steshenko wrote:
> --- On Thu, 12/25/08, Thomas Weber <thomas.weber.mail at gmail.com> wrote:
> 
> > From: Thomas Weber <thomas.weber.mail at gmail.com>
> > Subject: Re: octave-3.0.3 crashes while executing 'expfit' ("free(): invalid pointer")
> > To: "Sergei Steshenko" <sergstesh at yahoo.com>
> > Cc: "John W. Eaton" <jwe at octave.org>, bug-octave at octave.org
> > Date: Thursday, December 25, 2008, 8:12 AM
> > On Wed, Dec 24, 2008 at 05:28:22PM -0800, Sergei Steshenko
> > wrote:
> > > My wild guess there is 'new'/'malloc'
> > somewhere which doesn't check pointer
> > > for NULL; on a 64 bits system memory allocation error
> > is less likely than
> > > on a 32 bits system.
> > > 
> > > The wild guess is based on the fact that peak memory
> > consumption is about
> > > 2G.
> > 
> > What's your system's memory configuration (ie, how
> > much)? RAM and Swap,
> > please.
> > 
> > Thanks
> > 	Thomas
> 
> 2G of RAM + 4G of swap:

According to valgrind, new() throws an exception:
================================================================================
**12906** new/new[] failed and should throw an exception, but Valgrind
   cannot throw exceptions and so is aborting instead.  Sorry.
==12906==    at 0x4021881: VALGRIND_PRINTF_BACKTRACE (valgrind.h:3695)
==12906==    by 0x4023101: operator new[](unsigned) (vg_replace_malloc.c:268)
==12906==    by 0x43BF769: Array<std::complex<double> >::Array(dim_vector const&) (Array.h:70)
==12906==    by 0x43BACA0: elem_xpow(ComplexNDArray const&, NDArray const&) (ArrayN.h:59)
==12906==    by 0x456AC85: _ZL16oct_binop_el_powRK17octave_base_valueS1_ (op-cm-m.cc:90)
==12906==    by 0x44253B1: do_binary_op(octave_value::binary_op, octave_value const&, octave_value const&) (ov.cc:1376)
==12906==    by 0x45268AA: tree_binary_expression::rvalue() (pt-binop.cc:75)
==12906==    by 0x4523CDA: tree_simple_assignment::rvalue() (pt-assign.cc:202)
==12906==    by 0x4521C4F: tree_simple_assignment::rvalue(int) (pt-assign.cc:184)
==12906==    by 0x455C2A9: tree_statement::eval(bool, int, bool) (pt-stmt.cc:133)
==12906==    by 0x455C4C7: tree_statement_list::eval(bool, int) (pt-stmt.cc:190)
==12906==    by 0x44671C7: octave_user_function::do_multi_index_op(int, octave_value_list const&) (ov-usr-fcn.cc:366)
==12906==    by 0x4466276: octave_user_function::subsref(std::string const&, std::list<octave_value_list, std::allocator<octave_value_list> > const&, int) (ov-usr-fcn.cc:220)
==12906==    by 0x4421DFA: octave_value::subsref(std::string const&, std::list<octave_value_list, std::allocator<octave_value_list> > const&, int) (ov.cc:783)
==12906==    by 0x453BC3C: tree_index_expression::rvalue(int) (pt-idx.cc:352)
==12906==    by 0x452259B: tree_multi_assignment::rvalue(int) (pt-assign.cc:362)
==12906==    by 0x455C2A9: tree_statement::eval(bool, int, bool) (pt-stmt.cc:133)
==12906==    by 0x455C4C7: tree_statement_list::eval(bool, int) (pt-stmt.cc:190)
==12906==    by 0x43476AE: parse_and_execute(_IO_FILE*) (parse.y:2875)
==12906==    by 0x434803E: _ZL14parse_fcn_fileRKSsbb (parse.y:3347)
==12906==    by 0x4348E19: load_fcn_from_file(std::string const&, bool) (parse.y:3469)
==12906==    by 0x43490B3: load_fcn_from_file(symbol_record*, bool) (parse.y:3491)
==12906==    by 0x43A6C7A: lookup(symbol_record*, bool) (variables.cc:1121)
==12906==    by 0x45377FF: tree_identifier::do_lookup(bool&, bool) (pt-id.cc:110)
==12906==    by 0x455C26E: tree_statement::eval(bool, int, bool) (pt-stmt.cc:124)
==12906==    by 0x455C4C7: tree_statement_list::eval(bool, int) (pt-stmt.cc:190)
==12906==    by 0x4398F5B: main_loop() (toplev.cc:225)
==12906==    by 0x4332624: octave_main (octave.cc:835)
==12906==    by 0x8048769: main (in /usr/bin/octave-3.0.1)
================================================================================

I'm at a loss on how to proceed from here.

	Thomas