Re: [BUG] 2.6.21-rc1,2,3 regressions on my system that I found so far

Andy Lutomirski
2007-03-20T18:11:42Z

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.)