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Re: Perl 5.7.2
Hi!
Tuesday, 09 October, 2001 John Peacock jpeacock@rowman.com wrote:
>> I suspect that there might be some problem with a misconfigured perl,
>> maybe? I know that perl can use its own version of malloc. I wonder
>> if some memory that is allocated by perl's malloc has been passed to
>> cygwin's malloc for freeing. If so, then *boom*.
JP> That is a distinct possibility. I could see that Perl_safesysfree was
JP> being called, but all of those things should have been created with
JP> Perl_safemalloc. These are both wrappers around the system malloc()
JP> and free() so it is an avenue of investigation at least. I'll look at
JP> the wrapper code and see if there is anything that has changed recently.
JP> But, would this mean that if miniperl is being run under gdb, there
JP> would be no core dump? Because that is the behavior I am seeing
JP> (once I downgraded to CygWin 1.3.2-2).
free() does not necessarily crash on wrong pointer. whether it crashes
or not depends heavily on heap layout, which certainly changes between
different dll versions.
Egor. mailto:deo@logos-m.ru ICQ 5165414 FidoNet 2:5020/496.19
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