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Date:	Wed, 12 Mar 2014 10:23:33 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Need general snapshot testers/console buffer jumble
Message-ID:	<20140312092333.GE8066@calimero.vinschen.de>
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Hi Marco,

On Mar 11 21:55, Marco Atzeri wrote:
> On 10/03/2014 11:11, Corinna Vinschen wrote:
> >built from CVS.  No crash either.
> >
> >
> >Corinna
>=20
> Hi Corinna,
>=20
> I think it is due to the unusual history of my cygwin installation,
> that is triggering a corner case.
>=20
> The system is installed on a USB disk and it migrated from
> one computer to another, so some of old ACLs are not recognized from
> one new system.
>=20
> On AD aware snapshots:
> $ uname -svr
> CYGWIN_NT-6.1-WOW64 1.7.29s(0.272/5/3) 20140310 03:20:19
>=20
>=20
> $ ls -l nco-4.*.gz
> ls: cannot access nco-4.3.9.tar.gz: Bad address
> -rw-r--r-- 1 marco          root 5846624 Jan 29  2013 nco-4.2.5.tar.gz
> -rw-r--r-- 1 Administrators None 4479960 Jan 30 00:07 nco-4.4.1.tar.gz
> [...]
> I am using the same /etc/passwd and /etc/group
> and there is no /etc/nsswitch.conf file.
>=20
>=20
> Using a old version of
> SetACL by Helge Klein
> Homepage:        http://setacl.sourceforge.net
> Version:         2.0.3.0
>=20
> I catched the ACL for two of the files:
>=20
> "\\?\E:\cygwin\pub\devel\nco\nco-4.3.9.tar.gz",1,"O:S-1-5-21-531030479-13=
39336681-3415091201-1009G:S-1-5-21-1870173206-1308263284-2375963468-513D:P(=
A;;0x1f019f;;;S-1-5-21-531030479-1339336681-3415091201-1009)(A;;FR;;;S-1-5-=
21-1870173206-1308263284-2375963468-513)(A;;FR;;;WD)"
>=20
> SetACL finished successfully.
> "\\?\E:\cygwin\pub\devel\nco\nco-4.2.5.tar.gz",1,"O:S-1-5-21-531030479-13=
39336681-3415091201-1009G:BAD:P(A;;0x1f019f;;;S-1-5-21-531030479-1339336681=
-3415091201-1009)(A;;FR;;;BA)(A;;FR;;;WD)"
>=20
> and looking on
>=20
> new system /etc/group:
> None:S-1-5-21-531030479-1339336681-3415091201-513:513:
>=20
> old system /etc/group:
> None:S-1-5-21-1870173206-1308263284-2375963468-513:513:
>=20
> the "bad address" error is coming from the the file with the
> old ACL for "None" group.
>=20
> I suspect the Xwin crash was due to some files under /tmp or /var that
> had similar files, as making extensive use of
>    chgrp.exe -R Administrators *
>=20
> I have not anymore the segfault.

thanks for tracking this down.  Still, it shouldn't result in a=20
"Bad address" error, only in a GID value -1.  Pity that you fixed
it, otherwise your machine would be a wonderful guinea pig  :}


Thanks,
Corinna

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

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