From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Karl Tyss <tyss.k@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] IRQ-Latency when in idle State on ARM
Date: Fri, 05 Jun 2009 16:16:15 +0200 [thread overview]
Message-ID: <4A2928AF.30500@domain.hid> (raw)
In-Reply-To: <4A294359.3E52.00F8.0@domain.hid>
Karl Tyss wrote:
> Hi,
>
> 5 minutes ago I found out that one of the caches definately has to
> cause the problem. I believe I would have to spent couple of more days
> to find out why.
>
> Your hint was a bulls eye. I tried a dirty trick and commented out the
> two lines responsible for disabling the I-cache. It helped. I wonder if
> it leads to other problems. I will test it and post my results.
>
> Thank you both for the quick and productive help.
In my understanding, Icache can not be disabled using kernel
configuration options on 926, the only thing that can be done for a 926
is to set the Dcache to writethrough mode. How did you manage to
disable the caches ?
--
Gilles.
next prev parent reply other threads:[~2009-06-05 14:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4A28F029020000F80002DB14@domain.hid>
[not found] ` <4A28FAD4020000F80002DB27@domain.hid>
2009-06-05 9:00 ` [Xenomai-help] IRQ-Latency when in idle State on ARM Karl Tyss
2009-06-05 9:31 ` Gilles Chanteperdrix
2009-06-05 9:56 ` Karl Tyss
2009-06-05 11:10 ` Gilles Chanteperdrix
2009-06-05 13:42 ` Gilles Chanteperdrix
2009-06-05 14:09 ` Karl Tyss
2009-06-05 14:16 ` Gilles Chanteperdrix [this message]
2009-06-05 14:17 ` Gilles Chanteperdrix
2009-06-05 14:49 ` Karl Tyss
2009-06-05 15:01 ` Gilles Chanteperdrix
2009-06-05 12:13 ` Bosko Radivojevic
2009-06-08 7:31 ` Karl Tyss
2009-06-05 17:36 Karl Tyss
[not found] <4A294F59020000F80002DC0E@msw.eppendorf.de>
[not found] ` <200906051932.16827.karl.tyss@domain.hid>
2009-06-05 18:09 ` Gilles Chanteperdrix
2009-06-05 19:08 ` Gilles Chanteperdrix
2009-06-06 17:38 ` Karl Tyss
2009-06-06 18:00 ` Gilles Chanteperdrix
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4A2928AF.30500@domain.hid \
--to=gilles.chanteperdrix@xenomai.org \
--cc=tyss.k@domain.hid \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.