From: Philippe Elie <phil.el@wanadoo.fr>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nmi_watchdog=2 and P4-HT
Date: Thu, 4 Mar 2004 08:04:27 +0000 [thread overview]
Message-ID: <20040304080427.GC683@zaniah> (raw)
In-Reply-To: <20040304054215.GA683@zaniah>
On Thu, 04 Mar 2004 at 05:42 +0000, Philippe Elie wrote:
> Hi,
>
> Actually with nmi_watchdog=2 and a P4 ht box the nmi is reflected
> only on logical processor 0, it's better to get it on both.
oops a line from a next patch is in the patch "deliver nmi to both thread"
patch, apply this incremental patch please else on UP check_nmi_watchdog()
will use 1hz as rate and boot will wait 10 seconds for complementation
of this test.
Phil
--- linux-2.6/arch/i386/kernel/nmi.c~ 2004-03-04 07:59:22.000000000 +0000
+++ linux-2.6/arch/i386/kernel/nmi.c 2004-03-04 07:59:31.000000000 +0000
@@ -347,7 +347,6 @@ static int setup_p4_watchdog(void)
wrmsr(MSR_P4_IQ_COUNTER0, -(cpu_khz/nmi_hz*1000), -1);
apic_write(APIC_LVTPC, APIC_DM_NMI);
wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0);
- nmi_hz = 1;
return 1;
}
prev parent reply other threads:[~2004-03-04 7:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-04 5:42 [PATCH] nmi_watchdog=2 and P4-HT Philippe Elie
2004-03-04 5:30 ` Andrew Morton
2004-03-04 7:26 ` Philippe Elie
2004-03-04 6:32 ` Andrew Morton
2004-03-04 8:20 ` Philippe Elie
2004-03-05 5:42 ` [PATCH] set nmi_hz to 1 with nmi_watchdog=2 and SMP Philippe Elie
2004-03-04 8:04 ` Philippe Elie [this message]
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