Re: [Gcl-devel] GCL on mingw

[Camm Maguire]

Greetings!

"Vadim V. Zhytnikov" <address@hidden> writes:

> &j          0x22ff64
> &Cnil_body  0x54d1a0
> core_end    0x101c8000
> 

OK, given that you are having problems around 65000 pages 
(p/x 65000*4096 + 0x101c8000=0x1ffb0000)
I'm guessing something, most likely the shared library area, starts
at 0x20000000.  Is there any way that you can confirm this?  What is
the max data segment size returned by ulimit -a?  Should be
unlimited.  At the above break point in gdb, can you print the results
of:

p sbrk(65000*4096)

then keep running 'p sbrk(xxx*4096)' with some reasonable interval xxx
until you get over 0x20000000, and let me know if there is a jump and
if so how big.

Take care,

> >
> >>>4) Try to let me know if the C stack counts up or down.  I.e. break in
> >>>   some function with a local variable defined, and print the address
> >>>   of that variable, and compare it to the address of a local variable
> >>>   defined in a surrounding function (i.e. a parent function).
> >>>
> >>
> >>Stack counts down as far as I understand.  At least this is frame
> >>addresses for trivial recursive function:
> >>
> >>0: 0x22fe48
> >>1: 0x22fe68
> >>2: 0x22fe88
> > OK, thanks!  Do you knwo what the default stack size limits are on
> > mingw?  I think its 8M by default on Debian Linux.  Is there a system
> > call that can be made to determine this value?
> > The stack and the heap are clearly not overlapping.  My guess is that
> > the static areas won't pose a problem as well.  Which leaves shared
> > libs as a possibility.  We may have to get the backtrace from the
> > failure to allocate error to pinpoint this.
> > Take care,
> >
> >>...
> >>
> >>
> >>
> >>
> >>
> >> -- 
> >>      Vadim V. Zhytnikov
> >>
> >>       <address@hidden>
> >>      <address@hidden>
> >>
> >>
> >>
> >>
> >
> 
> 
> -- 
>       Vadim V. Zhytnikov
> 
>        <address@hidden>
>       <address@hidden>
> 
> 
> 
> 

-- 
Camm Maguire                                            address@hidden
==========================================================================
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah