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To:	wakamiya <wakamiya AT osaka DOT email DOT ne DOT jp>
Cc:	cygwin AT cygwin DOT com
Subject:	Re: malloc problem
References:	<3A469A1C DOT D6958E6D AT osaka DOT email DOT ne DOT jp>
Mime-Version:	1.0 (generated by tm-edit 7.106)
From:	Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
Date:	25 Dec 2000 10:17:41 +0900
In-Reply-To:	wakamiya's message of Mon, 25 Dec 2000 09:51:40 +0900
Message-ID:	<s1svgs98fka.fsf@jaist.ac.jp>
Lines:	38
X-Mailer:	Gnus v5.3/Emacs 19.34

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>>> On Mon, 25 Dec 2000 09:51:40 +0900
>>> wakamiya <wakamiya AT osaka DOT email DOT ne DOT jp> said:

> I use Cygwin 1.1.6 with WindowsNT Japanese Edition and 
> I have had a problem on malloc.
> As I get a memory block larger than 0x8000000 using malloc,
> malloc returns NULL pointer.
> How do I get a memory block larger than 0x8000000 ?
> Or is it a Windows limitation ?

It is a configurable limitation of the Cygwin DLL. You can
control it through a registry entry.

After you incorporate the following registry file, you can
allocate a memory block up to 256MB. Take care that this entry
isn't available until you terminate all applications of Cygwin.


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REGEDIT4

[HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin]
"heap_chunk_in_mb"=dword:00000100

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____
  | AIST      Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
  | HOKURIKU  School of Information Science
o_/ 1990      Japan Advanced Institute of Science and Technology


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