From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-3.v43.ch3.sourceforge.com ([172.29.43.193] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1V9CAv-0006El-6f for user-mode-linux-devel@lists.sourceforge.net; Tue, 13 Aug 2013 10:50:05 +0000 Received: from b.ns.miles-group.at ([95.130.255.144] helo=radon.swed.at) by sog-mx-3.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1V9CAt-0004WD-8P for user-mode-linux-devel@lists.sourceforge.net; Tue, 13 Aug 2013 10:50:05 +0000 Message-ID: <520A0F35.8000905@nod.at> Date: Tue, 13 Aug 2013 12:49:25 +0200 From: Richard Weinberger MIME-Version: 1.0 References: <20130811174831.GD10864@redhat.com> <20130812085300.GV5918@redhat.com> <20130813103603.GA27173@redhat.com> In-Reply-To: <20130813103603.GA27173@redhat.com> List-Id: The user-mode Linux development list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: user-mode-linux-devel-bounces@lists.sourceforge.net Subject: Re: [uml-devel] How to reliably kill all vmlinux processes for a single VM? To: "Richard W.M. Jones" Cc: "user-mode-linux-devel@lists.sourceforge.net" Am 13.08.2013 12:36, schrieb Richard W.M. Jones: > On Mon, Aug 12, 2013 at 09:53:00AM +0100, Richard W.M. Jones wrote: >> On Mon, Aug 12, 2013 at 10:15:24AM +0200, richard -rw- weinberger wrote: >>> Found the root cause, patch is on the way. >> >> I can test patches if you CC me on them. > > I'm still available to test patches :-) Didn't see anything on > this list nor on LKML. I'm currently on the road... > In particular I'm having a problem where it looks as if vmlinux is > sending a signal to its parent process on shutdown. > Really? If so, why does it not kill my shell if I run it directly? Thanks, //richard > I can reliably reproduce this, although not with anything very > minimal. But if you run the libguestfs test suite like this you'll > see it: > > make -C tests/regressions check TESTS=rhbz914931 > > The parent process (a C program which for unrelated reasons is called > 'rhbz914931') receives a SIGTERM. I checked the siginfo struct for > this signal, and it appears to come from the vmlinux main process, > which should not be happening. > > So .. possibly there's something awry with how vmlinux delivers > signals to its child processes on shutdown which is causing it both to > miss out some children, and to kill other unrelated processes. Or > maybe this is just a coincidence. > > Rich. > ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel