Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261352AbUKFJwb (ORCPT ); Sat, 6 Nov 2004 04:52:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261354AbUKFJwb (ORCPT ); Sat, 6 Nov 2004 04:52:31 -0500 Received: from pop5-1.us4.outblaze.com ([205.158.62.125]:21163 "HELO pop5-1.us4.outblaze.com") by vger.kernel.org with SMTP id S261352AbUKFJwT (ORCPT ); Sat, 6 Nov 2004 04:52:19 -0500 Subject: Re: IO_APIC NMI Watchdog not handled by suspend/resume. From: Nigel Cunningham Reply-To: ncunningham@linuxmail.org To: Zwane Mwaikambo Cc: Linux Kernel Mailing List In-Reply-To: References: <1099643612.3793.3.camel@desktop.cunninghams> Content-Type: text/plain Message-Id: <1099731243.4507.323.camel@desktop.cunninghams> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Sat, 06 Nov 2004 20:50:48 +1100 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1222 Lines: 37 Hi. On Sat, 2004-11-06 at 03:41, Zwane Mwaikambo wrote: > Hi Nigel > > On Fri, 5 Nov 2004, Nigel Cunningham wrote: > > > Tracking down SMP problems, I've found that if you boot with > > nmi_watchdog=1 (IO_APIC), the watchdog continues to run while suspend is > > doing sensitive things like restoring the original kernel. I don't know > > enough to provide a patch to disable it so thought I'd ask if someone > > could volunteer to fix this? > > Use enable/disable_lapic_nmi_watchdog but first check to see whether > nmi_watchdog == NMI_IO_APIC in which case you'd then call > disable/enable_timer_nmi_watchdog. Something like; Huh! I must have been blind; those routines are right above the lapic code I was looking at last night! Thanks! Nigel -- Nigel Cunningham Pastoral Worker Christian Reformed Church of Tuggeranong PO Box 1004, Tuggeranong, ACT 2901 You see, at just the right time, when we were still powerless, Christ died for the ungodly. -- Romans 5:6 - 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/