From owner-freebsd-stable@FreeBSD.ORG Tue Mar 11 13:22:48 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3229BFF8 for ; Tue, 11 Mar 2014 13:22:48 +0000 (UTC) Received: from mail.bsdinfo.com.br (mail.bsdinfo.com.br [67.212.89.78]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id EEA2F5FE for ; Tue, 11 Mar 2014 13:22:47 +0000 (UTC) Received: from mail.bsdinfo.com.br (mail.bsdinfo.com.br [127.0.0.1]) by mail.bsdinfo.com.br (Postfix) with ESMTP id 07DAF139C4 for ; Tue, 11 Mar 2014 13:25:11 -0300 (BRT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=bsdinfo.com.br; h=content-type:content-type:in-reply-to:references:subject :subject:to:mime-version:user-agent:from:from:date:date :message-id; s=dkim; t=1394555109; x=1395419110; bh=ndoJTgBJTZGE FVotdxZlMzzR1R8BfXDZX1SP/D+tWvw=; b=FSIhLkYqL8g7rZhSfRvAPa5g/wo7 BlQKnmOTbvZaCe1DU68oe1cT9StY77fucAL6TRToGXifzcoJPM5Lw8DSwFIDbHle bJRMYxr3nHvf1KmKbtEEZ5R5yA7mOutqWQiHcw3r6AJzgfZOc3FTAqEYVO81WTFx iBmi6j9mfow/LYU= X-Virus-Scanned: amavisd-new at mail.bsdinfo.com.br Received: from mail.bsdinfo.com.br ([127.0.0.1]) by mail.bsdinfo.com.br (mail.bsdinfo.com.br [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id q3oXRxF2Bou6 for ; Tue, 11 Mar 2014 13:25:09 -0300 (BRT) Received: from MacBook-de-Gondim-2.local (unknown [186.193.54.69]) by mail.bsdinfo.com.br (Postfix) with ESMTPSA id 4F300139C3 for ; Tue, 11 Mar 2014 13:25:09 -0300 (BRT) Message-ID: <531F0E1C.8020800@bsdinfo.com.br> Date: Tue, 11 Mar 2014 10:22:36 -0300 From: Marcelo Gondim User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 MIME-Version: 1.0 To: FreeBSD Stable Mailing List Subject: Re: sshd with zombie process on FreeBSD 10.0-STABLE References: <53016D97.5030909@bsdinfo.com.br> <53066B59.5000709@yandex.ru> <531A6C66.2010101@bsdinfo.com.br> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.17 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Mar 2014 13:22:48 -0000 Em 11/03/14 05:45, Alexander Yerenkow escreveu: > Could you try to change shell to simple "sh" and see if this helps? > This could be due to non-atomic work with history file when multiple > clients log off, causing csh produce large broken history files. > This is not 100% your case, but you could at least try :) Hi Alexander, I can try but it always used bash on that server and it just started to happen after I migrated from FreeBSD 9.x to 10.x I'll put the sh and see what happens. :D Thanks and best regards. > > > 2014-03-08 3:03 GMT+02:00 Marcelo Gondim : > >> Em 20/02/14 17:53, Andrey V. Elsukov escreveu: >> >> On 17.02.2014 06:01, Marcelo Gondim wrote: >>>> Hi all, >>>> >>>> I have noticed zombie processes on the system after a few lost >>>> connections on ssh. >>>> >>>> # ps afx >>>> [...] >>>> 8045 - Is 0:00.01 sshd: unknown [priv] (sshd) >>>> 8046 - Z 0:00.01 >>>> 8054 - IW 0:00.00 sshd: unknown [pam] (sshd) >>>> 28146 - Is 0:00.01 sshd: unknown [priv] (sshd) >>>> 28147 - Z 0:00.01 >>>> 28155 - IW 0:00.00 sshd: unknown [pam] (sshd) >>>> 43320 - Is 0:00.01 sshd: unknown [priv] (sshd) >>>> 43321 - Z 0:00.01 >>>> 43322 - IW 0:00.00 sshd: unknown [pam] (sshd) >>>> 73413 - Is 0:00.01 sshd: unknown [priv] (sshd) >>>> 73414 - Z 0:00.01 >>>> 73430 - IW 0:00.00 sshd: unknown [pam] (sshd) >>>> [...] >>>> >>>> Processes do not die with kill-9. >>>> Anyone else noticed this? >>>> >>> Hi, >>> >>> I use autossh and usually my system has several tens of sshd's zombies >>> after few days uptime. >>> >>> 11.0-CURRENT #6 r262183 >>> >>> New system update and the problem with zombie sshd processes continue. >> I noticed that this happens more often when the system has many remote >> access via ssh. This problem has been happening to me since the FreeBSD >> 10.0R. >> >> # uname -a >> FreeBSD bart.xxxxx.com.br 10.0-STABLE FreeBSD 10.0-STABLE #5 r262657: Tue >> Mar 4 14:53:08 BRT 2014 root@bart.xxxxx.com.br:/usr/obj/usr/src/sys/GONDIM10 >> amd64 >> >> Thanks and best regards, >> >> Gondim