Tue Apr 2 07:25:00 GMT 2002
Christopher Faylor wrote:
> On Tue, Apr 02, 2002 at 07:44:25AM -0500, Earnie Boyd wrote:
> >In my modifying Cygwin source for MSYS I began having issues with malloc
> >and the offending pieces being within this source. I noticed that the
> >HAVE_MMAP macro was set to 0 by default instead of 1 by default as
> >Dave's documentation says that it does. Modifying the macro value to 1
> >caused all of the problems I was experiencing to disappear.
> >Do other Cygwin developers see benefit for a patch to newlib?
> Can you describe the problem? I guess it's possible that allowing this code
> would fix the out-of-memory heap issues we continually have but, the last time
> I benchmarked this, using mmap had a performance hit. This was on UNIX but
> I can't imagine it isn't the same on cygwin.
I would get segmentation faults within mallocr.c. The first time it
occurred was the originating call was within the code I was adding. I
modified the code a bit and that caused the malloc's in environ.cc to
issue the segmentation faults in mallocr.c. If you need to know exactly
where in mallocr.c that was causing the problem I can most likely
reproduce it to get the failure point.
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