linux-kernel - Re: 2.6.21-rt2..8 troubles

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Date:	Fri, 6 Jul 2007 15:16:02 +0100 (WEST)
From:	"Rui Nuno Capela" <rncbc@...bc.org>
To:	"Thomas Gleixner" <tglx@...utronix.de>
Cc:	"Daniel Walker" <dwalker@...sta.com>,
	"Ingo Molnar" <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	linux-rt-users@...r.kernel.org
Subject: Re: 2.6.21-rt2..8 troubles

Hi,

I'm back but with good news this time :)...

On Tue, June 12, 2007 11:10, Rui Nuno Capela wrote:
> On Tue, June 12, 2007 00:08, Thomas Gleixner wrote:
>> On Mon, 2007-06-11 at 15:34 -0700, Daniel Walker wrote:
>>> On Mon, 2007-06-11 at 23:42 +0200, Thomas Gleixner wrote:
>>>> On Mon, 2007-06-11 at 22:25 +0100, Rui Nuno Capela wrote:
>>>>
>>>>> Nope. It's a Fujitsu-Siemens Amilo Si 1520 -- Intel Core2 Duo
>>>>> T7200@...Ghz.
>>>>>
>>>> Yeah, there are Dell ones which have similar or worse symptoms.
>>>>
>>>>> Works great with 2.6.21-rt1, and 2.6.22-rc4-hrt5, but that you
>>>>> already know :)
>>>>
>>>> Ok. I go back and figure out which differences we have between
>>>> 2.6.21-rt>8 and the -hrt queue.
>>>
>>> Are you sure it's strictly and HRT issue? I didn't see a
>>> !CONFIG_HIGH_RES_TIMERS test ..
>>
>> The main difference between -rt1 and -rt2 was the update of -hrt, which
>>  not only affects CONFIG_HIGH_RES_TIMERS. There are enough
>> CONFIG_HIGH_RES_TIMERS=n related changes to clock events and friends as
>>  well.
>
> In deed, FWIW and IIRC, I can confirm that the show-stopper problem was
> still present when tried with CONFIG_HIGH_RES_TIMERS not set (=N).
>

Although I'm still with my fingers crossed, I can tell that 2.6.21.5-rt19
(and -rt20) does behave far better now on the very same box.

I've more than 8 hours up and running now, without a single glimpse of the
bad symptoms, which used to show in a matter of minutes if not earlier
during init time.

Congratulations, -rt is usable again here and that just makes me happier :)

Cheers.
-- 
rncbc aka Rui Nuno Capela
rncbc@...bc.org


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