Gilles Chanteperdrix wrote: > Theo Veenker wrote: >> Philippe Gerum wrote: >>> On Mon, 2010-08-16 at 21:14 +0200, 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 failed to reproduce the issue yet, but it very much looks like an >>> I-pipe bug. Could you try the following config variants when time >>> allows: >>> >>> - on 2.6.32.11 or .15, disable CONFIG_SMP, enable CONFIG_X86_UP_APIC >>> only (*). >>> - on 2.6.32.11 or .15, disable CONFIG_SMP, enable CONFIG_X86_UP_APIC and >>> CONFIG_X86_UP_IOAPIC (*). >>> - on 2.6.32.7, use your normal CONFIG_SMP config, with this patch in: >>> http://download.gna.org/adeos/patches/v2.6/x86/older/adeos-ipipe-2.6.32.7-x86-2.5-01.patch >>> >>> (*) you need to switch off CONFIG_SMP first, to see those knobs appear >>> in the "processor type and features" menu. >>> >>> The fact that you did see the panic blinking signal at least once tends >>> to point the finger at some access fault the kernel tries to recover >>> without success, rather than a sudden freeze. It must happen early >>> enough during the boot process, for the console not to be available yet >>> for reporting what the kernel whines about. >>> >>> We don't know yet if that bug is either the consequence of some >>> interrupt delivery, and/or induced by code only involved in SMP. Those >>> test configs may help in discovering this. >>> >>> TIA, >>> >> Here are my results. I've built 5 kernels: >> K1: 2.6.32.15 (without the adeos patch applied) >> K2: 2.6.32.15 + 2.5.4 >> K3: 2.6.32.15 + 2.5.4 CONFIG_SMP off, CONFIG_X86_UP_API on, CONFIG_XENOMAI >> off, CONFIG_IPIPE on >> K4: 2.6.32.15 + 2.5.4 as (3) with CONFIG_X86_UP_IOAPIC on >> K5: 2.6.32.7 with adeos-ipipe-2.6.32.7-x86-2.5-01.patch >> >> I now tested these kernels on four systems: >> A1: MSI 945P with Ubuntu 8.04 >> A2: MSI 945P with Ubuntu 10.04 >> B1: MSI p45 neo3 with Ubuntu 8.04 >> B2: MSI p45 neo3 with Ubuntu 10.04 >> >> A1 and A2 are identical systems from the same batch and B1 and B2 also. >> >> What worked: >> A1 A2 B1 B2 >> ---------------------------------------------------------------- >> K1 Y Y Y Y >> K2 Y N/Y Y N >> K3 Y N/Y Y N >> K4 Y N/Y Y N >> K5 Y N/Y Y N > > What are the versions of grub you are using with A1, A2, B1, B2? >
This is 0.97 for A1 and B1 and 1.98 for A2 and B2. Theo _______________________________________________ Xenomai-help mailing list Xenomai-help@gna.org https://mail.gna.org/listinfo/xenomai-help
