From: Andy Lutomirski <luto@myrealbox.com>
To: Arjan van de Ven <arjan@infradead.org>, linux-kernel@vger.kernel.org
Cc: Eric St-Laurent <ericstl34@sympatico.ca>,
Lee Revell <rlrevell@joe-job.com>,
tglx@linutronix.de, Maxim Levitsky <maximlevitsky@gmail.com>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Adrian Bunk <bunk@stusta.de>, Len Brown <lenb@kernel.org>
Subject: Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far
Date: Tue, 20 Mar 2007 11:04:55 -0700 [thread overview]
Message-ID: <46002247.8020504@myrealbox.com> (raw)
In-Reply-To: <1174382141.1158.61.camel@laptopd505.fenrus.org>
Arjan van de Ven wrote:
> On Tue, 2007-03-20 at 01:36 -0400, Eric St-Laurent wrote:
>> On Tue, 2007-20-03 at 01:04 -0400, Lee Revell wrote:
>>
>>> I think CONFIG_TRY_TO_DISABLE_SMI would be excellent for debugging,
>>> not to mention people trying to spec out hardware for RT
>>> applications...
>> There is a SMI disabling module in RTAI, check the smi-module.c in this:
>>
>> https://www.rtai.org/RTAI/rtai-3.5.tar.bz2
>>
>> More infos:
>>
>> http://www.captain.at/rtai-smi-high-latency.php
>> http://www.captain.at/xenomai-smi-high-latency.php
>>
>> It might make sense to merge this code, at least in the -rt tree.
>
> it NEVER makes sense to disable SMM.
>
> SMM is there to ensure that your hardware doesn't get physically
> damaged.
>
> disabling that is a BAD idea. I'm no fan of SMM myself, but it's there,
> and we have to live with it. Disabling it without knowing what it does
> on your system is madness.
>
How about disabling it long enough to calibrate the timers and then
turning it back on?
--Andy
(apologies if anyone gets duplicates of this. i'm encountering
nightly-thunderbird-build bugs.)
next prev parent reply other threads:[~2007-03-20 18:11 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-16 10:30 [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far Maxim Levitsky
2007-03-16 23:19 ` Len Brown
2007-03-17 23:00 ` Maxim
2007-03-17 23:32 ` Thomas Gleixner
2007-12-30 7:50 ` Mike Galbraith
2007-12-30 14:53 ` Ingo Molnar
2007-03-20 11:54 ` sysfs ugly timer interface (was Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far) Pavel Machek
2007-03-22 15:28 ` Greg KH
2007-03-22 15:41 ` Thomas Gleixner
2007-03-23 1:24 ` sysfs q [was: sysfs ugly timer interface] Jan Engelhardt
2007-03-23 4:48 ` Greg KH
2007-03-23 6:05 ` Jan Engelhardt
2007-03-16 23:39 ` [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far Thomas Gleixner
2007-03-17 23:01 ` Maxim
2007-03-16 23:44 ` Thomas Gleixner
2007-03-17 0:04 ` [PATCH] i386: trust the PM-Timer calibration of the local APIC timer Thomas Gleixner
2007-03-17 7:22 ` Ingo Molnar
2007-03-17 13:24 ` Andi Kleen
2007-03-18 8:12 ` Andrew Morton
2007-03-18 8:45 ` Thomas Gleixner
2007-03-17 1:32 ` [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far Len Brown
2007-03-17 9:56 ` Thomas Gleixner
2007-03-17 11:05 ` Thomas Gleixner
2007-03-17 16:52 ` Thomas Gleixner
2007-03-17 10:32 ` Arjan van de Ven
2007-03-17 13:26 ` Andi Kleen
2007-03-20 4:27 ` Greg KH
2007-03-20 6:30 ` Thomas Gleixner
2007-03-20 9:14 ` Arjan van de Ven
2007-03-20 11:36 ` Andi Kleen
2007-03-20 11:41 ` Oliver Neukum
2007-03-17 22:45 ` Maxim
2007-03-20 5:04 ` Lee Revell
2007-03-20 5:36 ` Eric St-Laurent
2007-03-20 9:15 ` Arjan van de Ven
2007-03-20 18:04 ` Andy Lutomirski [this message]
2007-03-20 22:58 ` Eric St-Laurent
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