Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932234AbVKBCsu (ORCPT ); Tue, 1 Nov 2005 21:48:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932230AbVKBCsu (ORCPT ); Tue, 1 Nov 2005 21:48:50 -0500 Received: from smtp204.mail.sc5.yahoo.com ([216.136.130.127]:64131 "HELO smtp204.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S932234AbVKBCst (ORCPT ); Tue, 1 Nov 2005 21:48:49 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=wlM4/TvL2DRPpGbu+/1+i9Xo2JE14wvN5ZveJXeX4eqYAjdchtel6qhXkKx4eDA0kgiWjlhvb16cF5XZMw1P1mqJGcNgOMk4CFKBovM3rjbye9u6/OX29BSG2Dg9Cgd8LdGT5pdwFqCxV8+6YoqFVL8jqJTgY8P2FH0Aloq7xOI= ; Message-ID: <43682878.3040800@yahoo.com.au> Date: Wed, 02 Nov 2005 13:46:16 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: "Li, Shaohua" CC: Andrew Morton , Nigel Cunningham , Srivatsa Vaddagiri , Linux Kernel Mailing List , Ian Molton Subject: Re: [PATCH 2.6.14-rc1-git5] sched: disable preempt in idle tasks References: <59D45D057E9702469E5775CBB56411F1C19A01@pdsmsx406> In-Reply-To: <59D45D057E9702469E5775CBB56411F1C19A01@pdsmsx406> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 953 Lines: 31 Hi Shaohua, Li, Shaohua wrote: > > What's the status of the patch? I didn't see it in base kernel. > We found another bug related with this issue. On UP system, if a CPU > enters > 'mwait_idle', it never leaves it, as the 'mwait_idle' loop will never > end. > Disabling preempt fixes the bug. Should I submit a patch just disabling > preempt in 'mwait_idle' or wait for your patch? > The patch is in Andrew's tree, and it should get merged for 2.6.15. If you have verified that disabling preempt in mwait_idle fixes the bug, then you may like to send that to the 2.6.14.stable guys. Thanks, Nick -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.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/