Re: [Help-gsl] Possible leak in gsl_multifit_fdfsolver.

[Eduardo Novaes Hering]

Hi,

I found the error with the help of Valgrind, as suggested by Frank.
It, of course, was my mistake and had nothing to do with GSL.

Thanks a lot for your great patience and attention!

Eduardo.


On Oct 7, 2013, at 1:45 PM, Frank Reininghaus <address@hidden> wrote:

> Hi,
> 
> 2013/10/6 Eduardo Novaes Hering:
>> In the end, when the gsl_multifit_fdfsolver should
>> be freed, some trash is left in that address and
>> I get the following, intermittent, extremely annoying
>> error after I try to leave my data processing functions:
>> 
>>> malloc: *** error for object 0x100810cc0: incorrect checksum for freed 
>>> object - object was probably modified after being freed.
>>> *** set a breakpoint in malloc_error_break to debug
>>> 
>>> Program received signal SIGABRT, Aborted.
>>> 0x00007fff88c1ad46 in __kill ()
> 
> if you see such a message, the first thing you should do is to analyze
> the problem with Valgrind - just install it and prepend the command
> you start your program with (including command line arguments) with
> "valgrind ", and look at the first error message.
> 
> One possible cause of such an error would be that your function "f"
> writes to memory that you don't own.
> 
> Cheers,
> Frank

Eduardo Novaes Hering, PhD (MSc, DSc).
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