Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751318AbWIOMGR (ORCPT ); Fri, 15 Sep 2006 08:06:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751323AbWIOMGQ (ORCPT ); Fri, 15 Sep 2006 08:06:16 -0400 Received: from tinc.cathedrallabs.org ([72.9.252.66]:10126 "EHLO tinc.cathedrallabs.org") by vger.kernel.org with ESMTP id S1751318AbWIOMGQ (ORCPT ); Fri, 15 Sep 2006 08:06:16 -0400 Date: Fri, 15 Sep 2006 09:03:57 -0300 From: Aristeu Sergio Rozanski Filho To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH -mm] 8250: remove not needed NMI watchdog tickle in serial8250_console_write() Message-ID: <20060915120357.GB6642@cathedrallabs.org> References: <20060913205203.GC4787@cathedrallabs.org> <20060914214210.9128e032.akpm@osdl.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060914214210.9128e032.akpm@osdl.org> User-Agent: Mutt/1.5.13 (2006-08-11) X-Spam-Pyzor-Results: Reported 0 times. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 649 Lines: 21 > I disagree. > > If characters are flowing out at a rate which consistently exceeds > one-per-ten-milliseconds, the touch_nmi_watchdog() in wait_for_xmitr() will > never be called. > > Consequently a large interrupt-time write to the serial port (ie: sysrq-T > with serial-console enabled) will cause the NMI watchdog to trigger. > > No? gah, you're right. please drop this one. Thanks, -- Aristeu - 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/