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?
--
Gilles.
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