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Subject: Re: New cygwin install hanging on postinstall
To: cygwin AT cygwin DOT com
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From: David Stacey <drstacey AT tiscali DOT co DOT uk>
Message-ID: <56A152F3.9040308@tiscali.co.uk>
Date: Thu, 21 Jan 2016 21:51:47 +0000
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On 21/01/16 21:17, KARR, DAVID wrote:
>> -----Original Message-----
>> From: cygwin-owner <at> cygwin.com [mailto:cygwin-owner <at> cygwin.com] On
>> Behalf Of Achim Gratz
>> Sent: Thursday, January 21, 2016 12:10 PM
>> To: cygwin <at> cygwin.com
>> Subject: Re: New cygwin install hanging on postinstall
>>
>> KARR, DAVID writes:
>>> While it's sitting here, I dumped out "/var/log/setup.log.full".
>> Here is the end of the file:
>>> ----------------
>>> The following DLLs couldn't be rebased because they were in use:
>>>    /usr/bin/cygssp-0.dll
>>>    /usr/bin/cygperl5_22.dll
>>>    /usr/bin/cyggcc_s-1.dll
>>>    /usr/bin/cygcrypt-0.dll
>>>    /usr/lib/perl5/vendor_perl/5.22/i686-cygwin-threads-
>> 64int/auto/List/Util/Util.
>>> dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-64int/auto/IO/IO.dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-
>> 64int/auto/File/Glob/Glob.dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-
>> 64int/auto/Fcntl/Fcntl.dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-
>> 64int/auto/Encode/Encode.dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-
>> 64int/auto/Digest/MD5/MD5.dll
>>>    /usr/lib/perl5/5.22/i686-cygwin-threads-64int/auto/Cwd/Cwd.dll
>>> 2016/01/21 09:15:40 running: C:\cygwin\bin\dash.exe
>> "/etc/postinstall/0p_texlive
>>> _prep.dash"
>>> 2016/01/21 09:19:20 note: Nothing needed to be installed
>>> 2016/01/21 09:19:20 Ending cygwin install
>>> -----------
>> So this isn't a fresh install and in fact there is not only some
>> Cygwin
>> process running but a full blown Perl that has loaded a number of
>> modules.  How'd you manage to do that before Cygwin was ready
>> installing?  Are you perhaps reporting from a follow-on invocation
>> of
>> setup.exe after the first install already failed?
> Beats the heck out of me.  I didn't have Cygwin installed.  I ran the installer.  It hung at this point.  I eventually cancelled it, because it obviously wasn't going to complete.  This output is from one of the later retries.  I never attempted to run anything installed in cygwin, I'm just trying to complete the installation.

If setup has been killed and attempted a second time, it could be that 
one of the post-install scripts was left running.

>
>> For your current case, you need to get rid of _all_ running Cygwin
>> processes.  Best idea is to open a shell and issue
>>
>>    /usr/bin/rebase-trigger fullrebase
>>    /usr/bin/pkill .
>>
>> (you need to have procps installed for this command to be
>> available).
>> Then run setup again to have it re-do the rebase and run all
>> postinstall
>> scripts that failed before.  But I'm still interested how that
>> initial
>> failure could have occured, so if you could maybe look in
>> /var/log/setup.log if something indicates what happened there that
>> would
>> be good.
> More weirdness.  I ran a mintty window, and I ran those command lines, but it gives me lots of lines like this:
> -------------
> 2 [main] bash 28452 child_info_fork::abort: C:\cygwin\bin\cygiconv-2.dll: Loaded to different address: parent(0x4D0000) != child(0x2E0000)
> bash: fork: retry: No child processes
> -------------
>
> I don't believe either of these command lines did anything, but just to be sure, after I ran them I killed the window an reran setup, and got the same symptoms.

How many Cygwin packages are you attempting to install? You mentioned 
that you were installing on 32-bit Win 7, so you must be installing 
32-bit Cygwin. The amount of address space is rather limited on 32-bit, 
so installing a very large number of packages could give the symptoms 
you're seeing.

Dave.


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