X-Spam-Check-By:	sourceware.org
Message-ID:	<44D2CDF7.1090900@scytek.de>
Date:	Fri, 04 Aug 2006 00:32:55 -0400
From:	Volker Quetschke <quetschke AT scytek DOT de>
User-Agent:	Thunderbird 1.5.0.5 (Windows/20060719)
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Re: GnuPG bug: --refresh-keys
References:	<44D21D4C DOT 7050200 AT ukf DOT net> <44D29487 DOT 6000806 AT ukf DOT net>
In-Reply-To:	<44D29487.6000806@ukf.net>
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com

--------------enig50C8B26F7892D4C871D6B758
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Max Bowsher wrote:
> Max Bowsher wrote:
>> When running 'gpg --refresh-keys', the second updated key results in:
>>
>> gpg: renaming `/home/max/.gnupg/pubring.gpg' to
>> `/home/max/.gnupg/pubring.gpg~' failed: Permission denied
>> gpg: error writing keyring `/home/max/.gnupg/pubring.gpg': file rename e=
rror
>> gpg: key XXXXXXXX: "...." 28 new signatures
>> gpg: error reading `[stream]': file rename error
>>
>>
>> Given that:
>>  * this happens for the *second* updated key
>>
>>  * having another process running at the same time, rapidly moving away
>> any new pubring.gpg~ files avoids the error
>>
>>  * it is presumably Cygwin-specific
>>
>> it seems extremely likely that gnupg has a file descriptor leak, such
>> that when the second key is processed, gnupg still has an open file
>> descriptor on the file pubring.gpg~ when it attempts to overwrite it by
>> renaming another file onto that name. Windows then objects.
>=20
> Replying to my own mail...
>=20
> GPG for some reason tries to cache opened fds for re-use. I suggest
> disabling this caching for Cygwin. The appropriate code to tweak is in
> util/iobuf.c:fd_cache_close(). I changed the condition of the first if
> statement there to always be true, and the problem I reported goes away.
>=20
> Please integrate this into the Cygwin packages.

Thanks for tracking this down Max. It's also time for a new package
with the newer upstream version.

   Volker

--=20
PGP/GPG key  (ID: 0x9F8A785D)  available  from  wwwkeys.de.pgp.net
key-fingerprint 550D F17E B082 A3E9 F913  9E53 3D35 C9BA 9F8A 785D


--------------enig50C8B26F7892D4C871D6B758
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2.1 (MinGW)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFE0s4DPTXJup+KeF0RAmoIAKCi6jJfE92Bia4GWGN6rudXroOyIwCgknlw
SkBMtEfxzwdU1A43W+gFfTY=
=K5H/
-----END PGP SIGNATURE-----

--------------enig50C8B26F7892D4C871D6B758--

- Raw text -