Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1765491AbXIUU6P (ORCPT ); Fri, 21 Sep 2007 16:58:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763514AbXIUUph (ORCPT ); Fri, 21 Sep 2007 16:45:37 -0400 Received: from cantor2.suse.de ([195.135.220.15]:33042 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762807AbXIUUpY (ORCPT ); Fri, 21 Sep 2007 16:45:24 -0400 From: Andi Kleen References: <200709211044.901175000@suse.de> In-Reply-To: <200709211044.901175000@suse.de> To: venkatesh.pallipadi@intel.com, ak@suse.de, mingo@elte.hu, johnstul@us.ibm.com, patches@x86-64.org, linux-kernel@vger.kernel.org Subject: [PATCH] [39/45] x86_64: block irq balancing for timer Message-Id: <20070921204522.5E4AB14F22@wotan.suse.de> Date: Fri, 21 Sep 2007 22:45:22 +0200 (CEST) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1262 Lines: 36 From: Venki Pallipadi Disable irq balancing on IRQ0. Several SIS chipsets lock up when you try to change affinity of IRQ #0. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Thomas Gleixner Signed-off-by: Andi Kleen Cc: Andi Kleen Cc: Ingo Molnar Cc: john stultz Signed-off-by: Andrew Morton --- arch/x86_64/kernel/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux/arch/x86_64/kernel/time.c =================================================================== --- linux.orig/arch/x86_64/kernel/time.c +++ linux/arch/x86_64/kernel/time.c @@ -360,7 +360,7 @@ void stop_timer_interrupt(void) static struct irqaction irq0 = { .handler = timer_interrupt, - .flags = IRQF_DISABLED | IRQF_IRQPOLL, + .flags = IRQF_DISABLED | IRQF_IRQPOLL | IRQF_NOBALANCING, .mask = CPU_MASK_NONE, .name = "timer" }; - 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/