From mboxrd@z Thu Jan 1 00:00:00 1970 From: Craig Hollabaugh Subject: Re: Kernel boot problem on IXP422 Rev. A Date: Thu, 12 Jun 2008 15:43:26 -0600 Message-ID: <1213307006.3592.10.camel@hendrix.hollabaugh.com> References: <1522484831@web.de> <8bd0f97a0806121304m7d00fb6dq27fa7aa37cbeb828@mail.gmail.com> <17882748-2E1B-4DB4-82FD-C5D5C4E62CC8@logicaloutcome.ca> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <17882748-2E1B-4DB4-82FD-C5D5C4E62CC8@logicaloutcome.ca> Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Glenn Henshaw Cc: linux-embedded Glenn, I totally agree with your certification statement statement as a legit reason to not upgrade. I once worked for a aircraft lighting supplier, their FAA certification testing process took about 4 years. Going through the cert process makes one more resistant to change. Craig On Thu, 2008-06-12 at 17:28 -0400, Glenn Henshaw wrote: > On 12-Jun-08, at 4:04 PM, Mike Frysinger wrote: > > > On Thu, Jun 12, 2008 at 3:35 PM, Marcus Tangermann wrote: > >> we currently try to boot a 2.6.21 kernel > > > > time to upgrade > > Wrong answer!!! > > Many embedded devices can't upgrade kernels easily because of > customer requirements and certifications. For example, I have worked > on Linux based applications in the financial industry. A kernel > upgrade here is viewed as equivalent to switching from Windows XP to > Vista, and requires significant effort in certification testing from > the customer's perspective. This doesn't make economic sense for > either party. > > Often developers not working in the embedded space don't understand > this reality. > > Helpful responses on what does/does not work would be more > appreciated. > > ... Glenn > > > > > > >> on a custom IXP422 based board. > > > > you'll have better luck asking on the arm kernel mailing lists. they > > process this stuff every day. > > -mike > > -- > > To unsubscribe from this list: send the line "unsubscribe linux- > > embedded" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Dr. Craig Hollabaugh, craig@hollabaugh.com, 970 240 0509 Author of Embedded Linux: Hardware, Software and Interfacing www.embeddedlinuxinterfacing.com