From owner-freebsd-current@FreeBSD.ORG Thu Oct 21 01:51:28 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C1B3216A4CF for ; Thu, 21 Oct 2004 01:51:28 +0000 (GMT) Received: from mail.vicor-nb.com (bigwoop.vicor-nb.com [208.206.78.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8935143D2F for ; Thu, 21 Oct 2004 01:51:25 +0000 (GMT) (envelope-from julian@elischer.org) Received: from elischer.org (julian.vicor-nb.com [208.206.78.97]) by mail.vicor-nb.com (Postfix) with ESMTP id 551477A444; Wed, 20 Oct 2004 18:51:25 -0700 (PDT) Message-ID: <4177161C.9040100@elischer.org> Date: Wed, 20 Oct 2004 18:51:24 -0700 From: Julian Elischer User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.3.1) Gecko/20030516 X-Accept-Language: en, hu MIME-Version: 1.0 To: Nik Azim Azam References: <20041020221659.33824.qmail@web21124.mail.yahoo.com> In-Reply-To: <20041020221659.33824.qmail@web21124.mail.yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-current@freebsd.org Subject: Re: number of CPUs and IPI panic X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Oct 2004 01:51:28 -0000 you can remove a lot of the IPIs by turning off sysctl kern.sched.ipiwakeup.enabled (if it's turned on) Nik Azim Azam wrote: >sorry for not posting this information earlier. > >i'm running on SCHED_4BSD, with PREEMPTION. the same >panic occours without PREEMPTION. the kernel is >generic except that i've removed some devices that i >dont need. > >--- Gavin Atkinson >wrote: > > > >>On Wed, 20 Oct 2004, Nik Azim Azam wrote: >> >> >> >>>hello list, >>> >>>i'm doing some testing on a 6 cpu pentium II >>> >>> >>overdrive >> >> >>>computer with 6-CURRENT. with 6 cpus, the system >>> >>> >>will >> >> >>>panic easily with moderate load (previous IPI is >>>stuck). i edited sys/i386/sys/param.h file and >>> >>> >>lowered >> >> >>>the MAXCPU to 4. now the system is running with 4 >>> >>> >>cpus >> >> >>>and it survived a make buildworld + portupgrade at >>> >>> >>the >> >> >>>same time. >>> >>>is this a known problem? i can give more >>> >>> >>information >> >> >>>if anyone interested. >>> >>> >>Are you using SCHED_ULE? (I believe it's the default >>in 6-CURRENT...) >> >>If so, try with SCHED_4BSD. ULE has known problems >>at the moment. >> >>Gavin >> >> >> > > > > >_______________________________ >Do you Yahoo!? >Declare Yourself - Register online to vote today! >http://vote.yahoo.com >_______________________________________________ >freebsd-current@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-current >To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > >