From owner-freebsd-hackers@FreeBSD.ORG Fri Apr 4 20:24:26 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 27B07102 for ; Fri, 4 Apr 2014 20:24:26 +0000 (UTC) Received: from bigwig.baldwin.cx (bigwig.baldwin.cx [IPv6:2001:470:1f11:75::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id F39E6D52 for ; Fri, 4 Apr 2014 20:24:25 +0000 (UTC) Received: from jhbbsd.localnet (unknown [209.249.190.124]) by bigwig.baldwin.cx (Postfix) with ESMTPSA id B7B34B941; Fri, 4 Apr 2014 16:24:24 -0400 (EDT) From: John Baldwin To: Karl Pielorz Subject: Re: Stuck CLOSED sockets / sshd / zombies... Date: Fri, 4 Apr 2014 16:13:09 -0400 User-Agent: KMail/1.13.5 (FreeBSD/8.4-CBSD-20130906; KDE/4.5.5; amd64; ; ) References: <3FE645E9723756F22EF901AE@Mail-PC.tdx.co.uk> <201404031614.40951.jhb@freebsd.org> <18B08A7E8585B0C4A89A05E6@study64.tdx.co.uk> In-Reply-To: <18B08A7E8585B0C4A89A05E6@study64.tdx.co.uk> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201404041613.09808.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (bigwig.baldwin.cx); Fri, 04 Apr 2014 16:24:24 -0400 (EDT) Cc: freebsd-hackers@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Apr 2014 20:24:26 -0000 On Thursday, April 03, 2014 4:54:35 pm Karl Pielorz wrote: > > --On 3 April 2014 16:14:40 -0400 John Baldwin wrote: > > > That's really odd. A single threaded program has no business even trying > > to grab a lock. Is your sshd even linked against libthr via ldd? > > Bearing in mind this system was installed as 10.0-R, 10.0-STABLE checked > out via SVN, and the world built from that... > > Looking at sshd with ldd gives: > > " > # ldd /usr/sbin/sshd > /usr/sbin/sshd: > ... > libthr.so.3 => /lib/libthr.so.3 (0x8038d7000) > " > > So I'm guessing that's a yes? Ugh, ok. Is this easy to reproduce? -- John Baldwin