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Subject: Re: Presence of cygwin64 elements in an existing Cygwin 32 install after updating
To: cygwin AT cygwin DOT com
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From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
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Date: Wed, 30 Aug 2017 12:40:29 +0200
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On 29/08/2017 23:03, Eliot Moss wrote:
> On 8/29/2017 4:57 PM, Keith Christian wrote:
>> More program failures.  Have rebooted and allowed system to preform 
>> rebase:
>>
>>
>> $ man httping
>>        0 [main] man 7688 child_info_fork::abort:
>> C:\cygwin\bin\cygz.dll: Loaded to different address: parent(0x360000)
>> != child(0x3E0000)
>> man: fork failed: Resource temporarily unavailable
>>
>> Why are all of these programs failing in this way?
> 
> Sometimes I have needed to rebase all programs.  To do this,
> do the command: rebase-trigger full
> If you're not able to run bash to run this, you can run dash
> from Windows CMD and give an explicit path, e.g.,
> 
> /cygdrive/c/cygwin/bin/rebase-trigger full
> 
> would do the right thin on my installation.  But even that won't
> help if you're running 32-bit and have installed too many packages.
> There is only so much room in the address space for the various
> possible DLLs that might be loaded.

Keith,
in addition to Elliot's comment, you can use

   rebase -si

output to  provide an overview of how many dll's are present
and in which address they are mapped.

   $ rebase -si |sort -r --key=5 | head

will provide the list of the one absorbing more address space.
Except the octave-tisean patological case, that I recommend to not 
install if you don't really need it, usually LLVM and ICU
several DLL's are the largest:

  $ rebase -si |sort -r --key=5 | head |awk '{print $5,$1}'
0x020b3000 /usr/bin/cygLLVM-4.0.dll
0x01f75000 /usr/bin/cygQt5WebKit-5.dll
0x01def000 /usr/bin/cygLLVM-3.9.dll
0x01af3000 /usr/bin/cygLLVM-3.8.dll
0x0191d000 /usr/bin/cygicudata59.dll
0x0190a000 /usr/bin/cygicudata58.dll
0x01885000 /usr/bin/cygicudata57.dll
0x017ed000 /usr/bin/cygicudata56.dll
0x01239000 /usr/bin/cyggcj-16.dll
0x00f4f000 /usr/bin/cygoctave-4.dll

Regards
Marco


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