From owner-freebsd-stable@FreeBSD.ORG Tue Mar 29 10:07:34 2005 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 939D016A4CE for ; Tue, 29 Mar 2005 10:07:34 +0000 (GMT) Received: from gandalf.osk.com.ua (osk.com.ua [195.5.17.76]) by mx1.FreeBSD.org (Postfix) with ESMTP id AFAE843D53 for ; Tue, 29 Mar 2005 10:07:33 +0000 (GMT) (envelope-from subscriber@osk.com.ua) Received: from oleg.osk.lan (unknown [192.168.0.20]) by gandalf.osk.com.ua (Postfix) with ESMTP id 0E35278C08 for ; Tue, 29 Mar 2005 13:07:50 +0300 (EEST) Date: Tue, 29 Mar 2005 12:09:19 +0200 From: Oleg Tarasov X-Mailer: The Bat! (v3.0.1.33) Professional X-Priority: 3 (Normal) Message-ID: <69880762.20050329120919@osk.com.ua> To: freebsd-stable@FreeBSD.org In-Reply-To: <15810317675.20050324122809@osk.com.ua> References: <15810317675.20050324122809@osk.com.ua> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: kernel panics on sio interrupt-level overflows X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: FreeBSD MailList List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Mar 2005 10:07:34 -0000 Hello, This problem had unusual solution. It seems the key to this problem is that FreeBSD 5.3-STABLE-p5 (I have updated my system) has DEADLOCKS when intensively using sio device on high speed (115200) with SMP support. It seems that MPSAFE causes those deadlocks. Turning debug.mpsafenet="0" in /boot/loader.conf makes the system to work fine & stable instead of panicing every hour or more often -- Best regards, Oleg Tarasov mailto:subscriber@osk.com.ua