From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4C69BE0F.1090907@domain.hid> Date: Tue, 17 Aug 2010 00:39:11 +0200 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <4C45539B.70204@domain.hid> <4C6932E8.7050701@domain.hid> <4C694AB3.8050407@domain.hid> <4C698E16.5050806@domain.hid> In-Reply-To: <4C698E16.5050806@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] kernel 2.6.32.11 with xenomai 2.5.3 fails to boot on ubuntu lucid system List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Theo Veenker Cc: Xenomai help Theo Veenker wrote: > On 08/16/2010 04:26 PM, Theo Veenker wrote: >> Gilles Chanteperdrix wrote: >>> Theo Veenker wrote: >>>> Hi, >>>> >>>> I want to upgrade all our PC's from Ubuntu hardy to lucid and in the >>>> process >>>> I'm also going from kernel 2.6.29.5 with Xenomai 2.4.8 to kernel >>>> 2.6.32.11 >>>> with Xenomai 2.5.3. >>>> >>>> I first built and tested the 2.6.32.11 kernel with 2.5.3 on my hardy >>>> system >>>> and all went fine. But the problem is it just doesn't run on the >>>> lucid distro. >>> This, I do not understand, the kernel does not need any support from the >>> distribution for booting, how can the same kernel boot with one >>> distribution, and not with the other? When you say the "same kernel", do >>> you mean the exact same zImage or bzImage, or do you mean the kernel >>> with the same configuration, but with a different compiler, or only the >>> version is identical? >>> >> It is a complete mystery to me either. I compiled my kernel into a deb >> package >> and installed the very same deb package on three machines: >> MSI p45 neo3 with Hardy on it -> works OK >> MSI p45 neo3 with Ludid on it -> nothing (works fine with regular kernel) >> MSI 945P with Lucid on it: -> nothing (works fine with regular kernel) >> >> I'll try the suggestions posted and keep you informed. > > OK. Connected a terminal to catch early kernel messages. Still no output > unfortunately (with the regular kernel I do get output on the terminal, > so the connection works). > > Meanwhile also built and tested kernel 2.6.32.15 + xenomai 2.5.4. Still nothing. > I'm clueless. I'm running Xenomai for years on dozens of systems and I've > never run into problems like this. I think I'll have to sit down and take a > close look at what I'm doing. I've always built my kernels using make-kpkg, > maybe that somehow introduces a problem here. I'll try without it. > > (unfortunately/luckily I have to work from home for a few days so I can't > get to the test system until later this week) I had a look at your configuration, it has tracing, profiling and perf enabled. Could you try disabling them? I do not think this could matter, but who knows... -- Gilles.