fork fails after nmap with hint address in an unmapped memory region
Stéphane Mbape via cygwin
cygwin@cygwin.com
Sun Dec 10 18:04:00 GMT 2017
Worked for me.
Thank you.
On Sun, 10 Dec 2017 14:31:09, Corinna Vinschen wrote:
> --0eh6TmSyL6TZE2Uz
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> On Dec 9 15:58, St=C3=A9phane Mbape via cygwin wrote:
> > Hello,
> >=20
> > While embeding luajit in a c=C2=A0 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 region
> > will cause all forks to fail with
> > "fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address
> > 0x6FFFFFE0000, Win32 error 299"
> >=20
> > There is a sample code below.
> >=20
> > Thank you for reading.
>
> Thank you for the testcase. I pushed a patch and uploaded new developer
> snapshots to https://cygwin.com/snapshots. Please test.
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