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X-HELO: drew.franken.de
Date: Sun, 10 Dec 2017 19:03:56 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: fork fails after nmap with hint address in an unmapped memory region
Message-ID: <20171210180356.GL18791@calimero.vinschen.de>
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References: <b431898c-30f5-2847-c922-0f25a525ef76 AT yahoo DOT fr> <15510444518 DOT 20171209184819 AT yandex DOT ru> <77dab900-6ce1-6a28-b011-4d233fda408f AT yahoo DOT fr>
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On Dec 10 17:13, St=C3=A9phane Mbape via cygwin wrote:
> Worked for me.
> Thank you.
>=20
> On Sun, 10 Dec 2017 14:31:09, Corinna Vinschen wrote:
> > --0eh6TmSyL6TZE2Uz
> > Content-Type: text/plain; charset=3Dutf-8
> > Content-Disposition: inline
> > Content-Transfer-Encoding: quoted-printable
> >=20
> > On Dec  9 15:58, St=3DC3=3DA9phane Mbape via cygwin wrote:
> > > Hello,
> > >=3D20
> > > While embeding luajit in a c=3DC2=3DA0 program, I found myself unable=
 to fork
> > > processes.
> > > Investigations prove that it was related to nmap.
> > > To be accurate, calling nmap with hint address in a unmapped memory r=
egion
> > > will cause all forks to fail with
> > > "fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE add=
ress
> > > 0x6FFFFFE0000, Win32 error 299"
> > >=3D20
> > > There is a sample code below.
> > >=3D20
> > > Thank you for reading.
> >=20
> > Thank you for the testcase.  I pushed a patch and uploaded new developer
> > snapshots to https://cygwin.com/snapshots.  Please test.

Thanks for testing,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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