From: "Zarakin" <zarakin@hotpop.com>
To: <linux-kernel@vger.kernel.org>
Subject: Re: nmi_watchdog=2 - Oops with 2.6.8
Date: Wed, 25 Aug 2004 20:22:53 -0700 [thread overview]
Message-ID: <005401c48b1b$fae38890$6401a8c0@novustelecom.net> (raw)
In-Reply-To: <20040825160107.GA562@zaniah>
> try this patch please.
>
> --- linux-2.5/arch/i386/kernel/nmi.c~ 2004-06-15 10:52:00.000000000 +0200
> +++ linux-2.5/arch/i386/kernel/nmi.c 2004-08-25 17:33:45.000000000 +0200
> @@ -376,7 +376,13 @@
> clear_msr_range(0x3F1, 2);
> /* MSR 0x3F0 seems to have a default value of 0xFC00, but current
> docs doesn't fully define it, so leave it alone for now. */
> - clear_msr_range(0x3A0, 31);
> + if (boot_cpu_data.x86_model >= 0x3) {
> + /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */
> + clear_msr_range(0x3A0, 26);
> + clear_msr_range(0x3BC, 3);
> + } else {
> + clear_msr_range(0x3A0, 31);
> + }
> clear_msr_range(0x3C0, 6);
> clear_msr_range(0x3C8, 6);
> clear_msr_range(0x3E0, 2);
It worked, my machine boots now fine with nmi_watchdog=2.
I can also confirm that oprofile is broken due to the missing
MSR_P4_IQ_ESCR0/1:
http://marc.theaimsgroup.com/?l=oprofile-list&m=109323108114060&w=2
next prev parent reply other threads:[~2004-08-26 3:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-25 1:42 Zarakin
2004-08-25 6:12 ` Philippe Elie
2004-08-25 9:26 ` Mikael Pettersson
2004-08-25 17:05 ` Philippe Elie
2004-08-25 16:01 ` Philippe Elie
2004-08-26 3:22 ` Zarakin [this message]
2004-08-26 17:02 ` Philippe Elie
[not found] ` <00f801c48bfa$f5ccefb0$6401a8c0@novustelecom.net>
2004-08-27 16:52 ` nmi_watchdog=2 and oprofile " Philippe Elie
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