From: "Mika Penttilä" <mika.penttila@kolumbus.fi>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@suse.de>, Arjan van de Ven <arjan@infradead.org>,
David Bahi <dbahi@novell.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-rt-users@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Gregory Haskins <GHaskins@novell.com>
Subject: Re: nmi_watchdog fix for x86_64 to be more like i386
Date: Tue, 02 Oct 2007 07:56:24 +0300 [thread overview]
Message-ID: <4701CF78.5020802@kolumbus.fi> (raw)
In-Reply-To: <alpine.LFD.0.9999.0710020043450.20478@localhost.localdomain>
Thomas Gleixner wrote:
> On Tue, 2 Oct 2007, Andi Kleen wrote:
>
>>> OTOH, the accounting hook would allow us to remove the IRQ#0 -> CPU#0
>>> restriction. Not sure whether it's worth the trouble.
>>>
>> Some SIS chipsets hang the machine when you migrate irq 0 to another
>> CPU. It's better to keep that Also I wouldn't be surprised if there are some
>> other assumptions about this elsewhere.
>>
>> Ok in theory it could be done only on SIS, but that probably would really
>> not be worth the trouble
>>
>
> Agreed.
>
> I just got a x8664-hrt report, where I found the following oddity:
>
> 0: 1197 172881 IO-APIC-edge timer
>
> That's one of those infamous AMD C1E boxen. Strange, all my systems have
> IRQ#0 on CPU#0 and nowhere else. Any idea ?
>
> tglx
>
>
Here I have with stock FC7 (2.6.22.9-91) kernel :
0: 107835 133459760 IO-APIC-edge timer
Processor:
vendor_id : AuthenticAMD
cpu family : 15
model : 107
model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
stepping : 1
cpu MHz : 2109.721
cache size : 512 KB
MB:
Asus M2N-E (NF570)
--Mika
next prev parent reply other threads:[~2007-10-02 4:56 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-26 18:03 nmi_watchdog fix for x86_64 to be more like i386 David Bahi
2007-10-01 17:36 ` Andi Kleen
2007-10-01 18:54 ` Thomas Gleixner
2007-10-01 19:16 ` Andi Kleen
2007-10-01 19:27 ` Thomas Gleixner
2007-10-01 19:56 ` Arjan van de Ven
2007-10-01 20:10 ` Dave Jones
2007-10-01 20:11 ` Paul E. McKenney
2007-10-01 21:17 ` Thomas Gleixner
2007-10-01 21:41 ` Andi Kleen
2007-10-01 21:58 ` Thomas Gleixner
2007-10-01 22:07 ` Andi Kleen
2007-10-01 22:47 ` Thomas Gleixner
2007-10-01 22:52 ` Arjan van de Ven
2007-10-02 4:56 ` Mika Penttilä [this message]
2007-10-02 5:00 ` Arjan van de Ven
2007-10-02 5:51 ` Andi Kleen
2007-10-02 6:18 ` Thomas Gleixner
2007-10-05 4:37 ` Pallipadi, Venkatesh
2007-10-05 20:37 ` Thomas Gleixner
-- strict thread matches above, loose matches on Subject: below --
2007-10-05 16:01 David Bahi
2007-10-05 16:03 ` Andi Kleen
2007-10-05 17:38 ` Peter W. Morreale
2007-10-05 18:00 ` Andi Kleen
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