Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 3 Jul 2001 18:08:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 3 Jul 2001 18:08:43 -0400 Received: from mercury.ultramaster.com ([208.222.81.163]:12928 "EHLO mercury.ultramaster.com") by vger.kernel.org with ESMTP id ; Tue, 3 Jul 2001 18:08:34 -0400 Message-ID: <3B424300.9D804101@dm.ultramaster.com> Date: Tue, 03 Jul 2001 18:11:12 -0400 From: David Mansfield Organization: Ultramaster Group LLC X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.6-pre5 i686) X-Accept-Language: en MIME-Version: 1.0 To: lkml Subject: SCHED_FIFO task blocks magic sysrq Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org It seems like the sysrq code can get starved by a SCHED_FIFO task. I learned this by having an accidentally runaway SCHED_FIFO task which locked up my system. No SAK, no sync, no unmount, no reboot. Big Red Button. David -- David Mansfield (718) 963-2020 david@ultramaster.com Ultramaster Group, LLC www.ultramaster.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/