On Fri, 2006-10-06 at 18:56 +0000, Wael BACHTA wrote:
> I use an Intel Pentium 4 processor which can be used as 2 virtual
> processors when setting the SMP option during the kernel compiling (I can
> see 2 processors with "cat /proc/cpuinfo").
> I patched the kernel with adeos in order to install xenomai. I discovered
> that :
> - when completely disabling the ACPI and setting the SMP, my system boots
> but I have only one processor when I look into /proc/cpuinfo
> - Everything goes well when I don't disable completely the ACPI.
> I also use a PCI framegrabber. its driver is a real time one developed
> under xenomai. I noticed that this driver works fine only if the PCI_MSI
> is set. Otherwise, I don't have any interrupts.
> I must use my real time driver and the 2 virtual processors.
> But, when I enable the ACPI, the SMP and the PCI_MSI, I have a kernel
> panic. My PC boots when I disable the ACPI but I loose 1 processor.
> I don't see what's wrong.
Try this patch:
> Thanks for your help,
> Wael BACHTA
> Strasbourg I University
> LSIIT Laboratory, AVR group
> Bd S. Brant
> BP 10413, 67412 ILLKIRCH cedex, FRANCE
> Tel : +33 (0)3 90 24 44 78
> Fax : +33 (0)3 90 24 44 80
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