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Re: fork expert needed: (was Re: pthreads update for the adventurous)

On Sat, Apr 14, 2001 at 04:49:43PM +1000, Robert Collins wrote:
>----- Original Message -----
>From: "Jason Tishler" <>
>To: "Robert Collins" <>
>Cc: <>
>Sent: Saturday, April 14, 2001 12:12 PM
>Subject: Re: pthreads update for the adventurous
>> > 3. The Python regression tests consistently crash during test_popen2
>> > with the following error message:
>> >
>>>H:\src\Python-2.1b2a-threads\python.exe: *** couldn't release memory
>>>0x1A02C000(5013504) for
>>>alignment, Win32 error 487

This error means that Cygwin was trying to relocate a DLL load point in
a child process to the same location as it existed in the parent and was
unsuccesful in doing so.  The 487 error means "Invalid address".  That
may that that the memory is already occupied.

There's not much that can be done to rectify this, unfortunately.
Possibly if someone really wants to debug this situation there might be
something that will be obvious but it is pretty painful to debug,

I added this dll relocation stuff last year to help with perl.  It
wasn't fun.


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