From owner-svn-src-head@freebsd.org Fri Apr 14 18:49:31 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DFD1DD3ED98; Fri, 14 Apr 2017 18:49:31 +0000 (UTC) (envelope-from peter@wemm.org) Received: from smtp2.wemm.org (smtp2.wemm.org [192.203.228.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp2.wemm.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id CB517946; Fri, 14 Apr 2017 18:49:31 +0000 (UTC) (envelope-from peter@wemm.org) Received: from overcee.wemm.org (canning.wemm.org [192.203.228.65]) by smtp2.wemm.org (Postfix) with ESMTP id 925FA2B8; Fri, 14 Apr 2017 11:49:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wemm.org; s=m20140428; t=1492195770; bh=Z6xPhUHRlm0fby4MJ07uURjrHumflpZpZe9s5a5CBU8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Eq/a4hbvCtInowN0e9QMSQXxYRxwdAmm5bQTkH+vX8Q3ZfZ2bZlgVntM+JshJfvAq MMgWqhhN5H9PbB7B9mXwIlOMKasIdiiRYKpiwA+deW2TJ6g8CjmCAR30ZO3u59X10B gVeduMKRiHDe8h24FDOzV5y8XZ30wc8K+gb1RWmI= From: Peter Wemm To: svn-src-all@freebsd.org Cc: Maxim Sobolev , src-committers@freebsd.org, svn-src-head@freebsd.org, Hiren Panchasara Subject: Re: svn commit: r316874 - head/sys/kern Date: Fri, 14 Apr 2017 11:49:26 -0700 Message-ID: <1599271.FxKGEkh3s8@overcee.wemm.org> User-Agent: KMail/4.14.10 (FreeBSD/12.0-CURRENT; KDE/4.14.10; amd64; ; ) In-Reply-To: <201704141723.v3EHNS3B043902@repo.freebsd.org> References: <201704141723.v3EHNS3B043902@repo.freebsd.org> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2770083.al7Ir3C4kI"; micalg="pgp-sha256"; protocol="application/pgp-signature" X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Apr 2017 18:49:32 -0000 --nextPart2770083.al7Ir3C4kI Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" On Friday, April 14, 2017 05:23:28 PM Maxim Sobolev wrote: > Author: sobomax > Date: Fri Apr 14 17:23:28 2017 > New Revision: 316874 > URL: https://svnweb.freebsd.org/changeset/base/316874 >=20 > Log: > Restore ability to shutdown DGRAM sockets, still forcing ENOTCONN t= o be > returned by the shutdown(2) system call. This ability has been lost a= s part > of the svn revision 285910. >=20 > Reviewed by:=09ed, rwatson, glebius, hiren > MFC after:=092 weeks > Differential Revision:=09https://reviews.freebsd.org/D10351 This appears to have broken syslogd and had a major change in behavior = with=20 regards to select(2). If you run syslogd with the -s flag (which is default), it now spins at= 100%=20 cpu as all the shutdown sockets now return readable from select. Old releases / jails also manifest this behavor. If it wasn't for losi= ng the=20 ability to run old branch binaries I'd suggest changing syslogd instead= , but=20 we depend on this in the cluster and I expect others do too. I'm not 100% certain that this change is the culprit but a heads-up can= 't=20 hurt. I'll try reverting it on the freebsd cluster next, after fixing t= he=20 broken auditing changes. =2DPeter =2D-=20 Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI= 6FJV UTF-8: for when a ' or ... just won\342\200\231t do\342\200\246 --nextPart2770083.al7Ir3C4kI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEBgrA0Vr/vfNVuPoUNdaXCeyAngQFAljxGbYACgkQNdaXCeyA ngQBCggApmBnRNEPOo6bYCm9FDdP12t08FtP6ZOC5mZjgxzOQ5dIUYoZ9HvLQ0Qq uM9Z/nVdk5hwb/SsIDPy3VsU6ASmwApVzOxv84/y4O0acDVVoiVu0HQ5Bz3dqz1s HJoS6wlv0afr14hba+4tnLK5krwze6/CHJ2k1MgBZHqNjqwhsgzTK8gjgNuJhClI dXFbHB8vBXcMz4r1MEAWlTUV/fCzTFGGxAvYSUNcJNAjaRd3fvpEdkMv+cvGw3OE ge447UmbAVH7aBv+8ExeelIYR5fexcQ3XkfdXWamm/p9xOfY/e3mnfk7ei3cHwOI YQSShQKA4RQj1czUeCotMq9mboC34A== =hHRC -----END PGP SIGNATURE----- --nextPart2770083.al7Ir3C4kI--