From owner-freebsd-stable@FreeBSD.ORG Wed Jun 23 18:42:13 2010 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AADBC1065670; Wed, 23 Jun 2010 18:42:13 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [IPv6:2001:470:a803::1]) by mx1.freebsd.org (Postfix) with ESMTP id E98E28FC13; Wed, 23 Jun 2010 18:42:12 +0000 (UTC) Received: from mail.geekcn.org (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id A0BD9A58DBC; Thu, 24 Jun 2010 02:42:11 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by mail.geekcn.org (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with LMTP id UifffT0W2-Pw; Thu, 24 Jun 2010 02:42:04 +0800 (CST) Received: from delta.delphij.net (drawbridge.ixsystems.com [206.40.55.65]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 913CCA58D33; Thu, 24 Jun 2010 02:42:00 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=Kms/vFPPl/w6pJjmqqEPMMy87+Zh5okNF0Dy0St1DUP34Bs5mFY3jgDtFQz+2OqVX KyDK/bEsoBFU1Thv7l1ew== Message-ID: <4C225572.8020602@delphij.net> Date: Wed, 23 Jun 2010 11:41:54 -0700 From: Xin LI Organization: The Geek China Organization User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.10) Gecko/20100621 Thunderbird/3.0.5 ThunderBrowse/3.2.8.1 MIME-Version: 1.0 To: Jung-uk Kim References: <20100623025855.82916.qmail@exxodus.fedaykin.here> <4C224E7C.7090806@delphij.net> <201006231437.38694.jkim@FreeBSD.org> In-Reply-To: <201006231437.38694.jkim@FreeBSD.org> X-Enigmail-Version: 1.0.1 OpenPGP: id=3FCA37C1; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: d@delphij.net, freebsd-stable@FreeBSD.org, Mario Sergio Fujikawa Ferreira Subject: Re: FreeBSD 8.1-PRERELEASE: WARNING ioctl sign-extension ioctl ffffffff8004667e X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Jun 2010 18:42:13 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2010/06/23 11:37, Jung-uk Kim wrote: > On Wednesday 23 June 2010 02:12 pm, Xin LI wrote: >> Hi, >> >> On 2010/06/22 19:58, Mario Sergio Fujikawa Ferreira wrote: >>> Hi, >>> >>> I am getting more than 4 thousand of the following messages a >>> day: >>> >>> WARNING pid 24509 (python2.6): ioctl sign-extension ioctl >>> ffffffff8004667e >> >> [...] >> >> I think we may need to check the code and patch it. Basically this >> means that python (or some .so modules) passed an int or unsigned >> int as parameter 'cmd', we need to change it to unsigned long. >> >> The warning itself should be harmless to my best of knowledge, one >> can probably remove the printf in kernel source code as a >> workaround. >> >> By the way it seems to be a POSIX violation and we didn't seem to >> really use so wide cmd, but I have not yet verified everything >> myself. > > Long time ago, I had a similar problem with termios TIOCGWINSZ and we > patched the port like this: > > http://www.freebsd.org/cgi/cvsweb.cgi/ports/lang/python/files/Attic/patch-Modules%3A%3Afcntlmodule.c?rev=1.1;content-type=text%2Fplain > > I believe it was upstream patched at the time but I won't be surprised > if something similar was reintroduced. It happens when a Python > internal integer type is converted to a native unsigned long. Well, only *BSD have cmd a long value so it's likely that it would be reintroduced. I have checked the 4.4BSD archive and understood that our ioctl's cmd parameter was made long around 1991 or 1992s but didn't see what it actually buy us... Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iQEcBAEBCAAGBQJMIlVyAAoJEATO+BI/yjfBLgcIAKXIekJTGptB51L3XJaJL0q4 I+3nAqDcexDiTIAZ3ExDW47MNeh89fR5Iun2kgYlaOYtEEz8iFdJkrH2dgjkRGpt iBXcjuYw/rVINkvl03tovwIaDNmHjvD3NyvvTSOqmSsRnyR6Z7LACNqQr95nPzrF jJFS+AWT0QeytzhJFSAHXniR9paTsktnHTIN4XEdnYlzNIIhP8BoDgfJ3RqGJRk9 QcvZtait5JWHaGJFhGvN/j30lGsHPabt9zWqNVSHLJ9pSzfwAtW7Ihwso55/blYA JxkRUps2AfK9ZhvQ2B0eArVQLjA61HifVE1UNLrkh1KMeUPth4eIZvBZuWtJ7R8= =ZCD9 -----END PGP SIGNATURE-----