From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John David Anglin" Subject: [parisc-linux] Re: Expect defunct, kill -9 panics kernel? Date: Sat, 10 Feb 2007 13:10:45 -0500 (EST) Message-ID: <200702101810.l1AIAkeJ012821__4962.05831082097$1416624280$gmane$org@hiauly1.hia.nrc.ca> References: <119aab440702100916q504101b1xe99f65ff5945e712@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: dave.anglin@nrc.ca, parisc-linux@lists.parisc-linux.org To: carlos@systemhalted.org (Carlos O'Donell) Return-Path: In-Reply-To: <119aab440702100916q504101b1xe99f65ff5945e712@mail.gmail.com> from "Carlos O'Donell" at Feb 10, 2007 12:16:45 pm List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: parisc-linux-bounces@lists.parisc-linux.org > Is this the usual behaviour you see? > > 1. I run the gcc testsuite. > 2. expect dies, leaving a defunct process. > 3. Killing another expect panics the kernel. It similar to the behavior that I see. I don't usually see this with expect though. Possibly, this is because I use my own build of expect linked tcl8.3. I see this behavior quite consistently on my c3750 if I 1. Run the gcc libjava testsuite. 2. Usually, there a set of processes (e.g., Process_3) left running after the testsuite ends. These processes are not defunct and load the processor. I can kill all but the oldest thread. 3. Killing the oldest thread panics the kernel. Sometimes the system reboots. However, the system often hangs doing endless panics. I suspect a timing issue as the c3750 is the fastest processor that I test on. I don't see as many problems with the libjava testsuite on slower hardware. At one time, I thought this might be a 32 versus 64-bit issue, but I see the same problems running a 64-bit kernel. Dave -- J. David Anglin dave.anglin@nrc-cnrc.gc.ca National Research Council of Canada (613) 990-0752 (FAX: 952-6602) _______________________________________________ parisc-linux mailing list parisc-linux@lists.parisc-linux.org http://lists.parisc-linux.org/mailman/listinfo/parisc-linux