From owner-freebsd-questions@FreeBSD.ORG Fri May 21 05:54:38 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DDB61106566C for ; Fri, 21 May 2010 05:54:38 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 5732B8FC16 for ; Fri, 21 May 2010 05:54:37 +0000 (UTC) X-Spam-Status: No X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-0.2, required 5, autolearn=not spam, ALL_TRUSTED -1.00, BAYES_50 0.80) X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-ID: o4L5sODk018675 Received: from kobe.laptop (77.49.120.100.dsl.dyn.forthnet.gr [77.49.120.100]) (authenticated bits=128) by igloo.linux.gr (8.14.3/8.14.3/Debian-9.1) with ESMTP id o4L5sODk018675 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 21 May 2010 08:54:30 +0300 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.4/8.14.4) with ESMTP id o4L5sI2P003969 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 21 May 2010 08:54:18 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.4/8.14.4/Submit) id o4L5sGL0003966; Fri, 21 May 2010 08:54:16 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) From: Giorgos Keramidas To: Carl Johnson References: <877hmzbi1f.fsf@cjlinux.localnet> Date: Fri, 21 May 2010 08:54:16 +0300 In-Reply-To: <877hmzbi1f.fsf@cjlinux.localnet> (Carl Johnson's message of "Wed, 19 May 2010 16:14:52 -0700") Message-ID: <878w7d7qbb.fsf@kobe.laptop> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: freebsd-questions@freebsd.org Subject: Re: Bash lockups X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 May 2010 05:54:38 -0000 On Wed, 19 May 2010 16:14:52 -0700, Carl Johnson wrote: > I have been experimenting with FreeBSD for a while, and I consistently > get bash lockups at irregular intervals when it is otherwise idle. By > lockup, I mean that it stops responding to the keyboard and uses 100% > CPU. It will sometimes go for days with no problems, but I had two > yesterday, and other today. They have occurred on test systems > running in VirtualBox and on a real computer, both i386 and amd64 > images, and a mixture of 7.1, 7.3 and 8.0. They usually seem to > happen when I am switching tabs in konsole or switching shells in > screen, but other times I think they happen when I am not even using > the system. The only thing I have found I can do is to do a kill -9 > and start a new shell. Does this lock-up happen if you leave the shell 'idle' for too long over an ssh session? There may be problems with stateful connection tracking between your terminal and the remote shell :-/