Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 22 Apr 2001 08:56:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 22 Apr 2001 08:56:28 -0400 Received: from WARSL401PIP1.highway.telekom.at ([195.3.96.69]:37183 "HELO email01.aon.at") by vger.kernel.org with SMTP id ; Sun, 22 Apr 2001 08:56:14 -0400 Message-ID: <3AE2D4E7.4D7E58BD@violin.dyndns.org> Date: Sun, 22 Apr 2001 14:56:07 +0200 From: Hermann Himmelbauer Reply-To: dusty@strike.wu-wien.ac.at X-Mailer: Mozilla 4.76 [en] (X11; U; Linux 2.4.1 i686) X-Accept-Language: en MIME-Version: 1.0 To: Alan Cox CC: Karsten Keil , linux-kernel@vger.kernel.org Subject: Re: APIC-Errors+Crashes on GA 586DX, 2.2.17/2.4.3 In-Reply-To: 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 Alan Cox wrote: > > > here. These errors itself are not a problem since the APIC bus detect > > it and recover, but if here are double errors in a way that the checksum > > is OK, the APIC may run in trouble. > > Also nothing but recent -ac kernels in the 2.4 range handle the replay of > IPI's sometimes caused by this. That patch is a post 2.4.4 thing to sort out. Hmmm, that's a little too technical for me ;-) Does that mean that this patch would perhaps increase the stability of my board as this code tries to prevent those double errors? If yes, where could I get this patch to try it out? What do you think of the following suggestion: -Implement two runtime kernel variables like /proc/sys/kernel/print_apic_errors This would simply disable those "APIC error" kernel logs, so that the logfile is not flooded. (45000 log entries in 1 hour are quite a lot). Anyway once you know that your board has this problem, IMHO there is no further use in those messages. /proc/sys/kernel/enable_apic The second one would enable/disable the APIC code for testing purposes - like the "noapic" parameter during boottime. But as I have no knowledge about those kernel internals, perhaps this wish is impossible to implement... Once again, thank you for your help! Best Regards, Hermann -- ,_, (O,O) "There is more to life than increasing its speed." ( ) -- Gandhi -"-"-------------------------------------------------------------- - 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/