From owner-freebsd-questions@freebsd.org Thu Aug 8 18:58:30 2019 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1FF9FAF7D1 for ; Thu, 8 Aug 2019 18:58:30 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from holgerdanske.com (holgerdanske.com [IPv6:2001:470:0:19b::b869:801b]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "holgerdanske.com", Issuer "holgerdanske.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 464HhP0Zd1z4k6s for ; Thu, 8 Aug 2019 18:58:28 +0000 (UTC) (envelope-from dpchrist@holgerdanske.com) Received: from 99.100.19.101 ([99.100.19.101]) by holgerdanske.com with ESMTPSA (ECDHE-RSA-AES128-GCM-SHA256:TLSv1.2:Kx=ECDH:Au=RSA:Enc=AESGCM(128):Mac=AEAD) (SMTP-AUTH username dpchrist@holgerdanske.com, mechanism PLAIN) for ; Thu, 8 Aug 2019 11:55:59 -0700 Subject: Re: kill -9 does nothing To: freebsd-questions@freebsd.org References: <20190808180557.abbdd74fcdb74806aed1fd98@gc-24.de> From: David Christensen Message-ID: <6bc66e1e-4525-eb60-af3f-4451fe34aa1e@holgerdanske.com> Date: Thu, 8 Aug 2019 11:55:59 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190808180557.abbdd74fcdb74806aed1fd98@gc-24.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 464HhP0Zd1z4k6s X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of dpchrist@holgerdanske.com has no SPF policy when checking 2001:470:0:19b::b869:801b) smtp.mailfrom=dpchrist@holgerdanske.com X-Spamd-Result: default: False [-3.05 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; NEURAL_HAM_MEDIUM(-0.87)[-0.875,0]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; IP_SCORE(-1.49)[ipnet: 2001:470::/32(-4.48), asn: 6939(-2.93), country: US(-0.05)]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.99)[-0.987,0]; DMARC_NA(0.00)[holgerdanske.com]; NEURAL_HAM_SHORT(-0.59)[-0.595,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Aug 2019 18:58:30 -0000 On 8/8/19 9:05 AM, hw wrote: > Hi, > > how do you get rid of unresponsive processes? Even 'kill -9' does > nothing, and Firefox has a tendency to become unresponsive. I can't > restart the server all the time and kick off all users in the process. My FreeBSD 11.2 server does not have X or Firefox -- it has the console, an SSH server, jails, and one service per jail. Each jail has its primary server plus the SSH server. I use a laptop and an SSH client to do administration on the jail host and within each jail. The laptop has Firefox with Disconnect, HTTPS Everywhere, NoScript, and Privacy Badger extensions. Firefox is set to remember nothing. The extensions are set restrictive. I try to do one browsing task at a time. I temporarily loosen the various settings as required as I visit each site. When a task is done, I close Firefox and open a fresh copy for the next task; this wipes the old data and resets most settings. When Firefox locks up, I try to close it. If that fails, I use a terminal to kill it. If that fails, I reboot the laptop. The server has been up for 25 days. David