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Date: Wed, 18 Dec 2019 17:34:16 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: Eliot Moss <moss AT cs DOT umass DOT edu>
Cc: cygwin <cygwin AT cygwin DOT com>
Subject: Re: Persistent issues around rebasing
Message-ID: <20191218163416.GN10310@calimero.vinschen.de>
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References: <65e00bb8-6a95-5e47-9adb-bbe15a6d1759 AT cs DOT umass DOT edu>
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On Dec 18 08:40, Eliot Moss wrote:
> Dear Corinna, et al. --
>=20
> I have had a persistent problem with DLL collision after fork.  When I st=
art
> cygwin I use XLaunch, which starts two bash instances and an xemacs.  The=
se
> come up fine.  However, it is often the case that the xemacs can't fork l=
s to
> show a directory, or the XWin can't fork additional programs from its men=
u.
> In such cases I do rebaseall, but even then, it seems that I need some ra=
ndom
> number of Windows restarts to get things where fork works again.  (Of cou=
rse
> it may not really be random - it may just depend on something I haven;t
> figured out yet!).

I think your main problem is using a 32 bit release.  The huge number
of DLLs requires a big address space.  The chance for collision with
non-Cygwin Windows DLL is extremly high with so many DLLs installed.

These days, I don't recommend a 32 bit release anymore for default
desktop stuff anymore.  You should only use 32 bit if you have a small
package footprint.

For all normal desktop/workstation requirements, use 64 bit Cygwin.


Corinna

--=20
Corinna Vinschen
Cygwin Maintainer

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