Re: [Xen-users] Re: xen 2.0/3.0 pb with SW-RAID

[Fred Blaise <chapeaurouge@xxxxxxxxx>]

On 10/14/05, Robbie Dinn <robbie@xxxxxxxxxxxx> wrote:
> Hello Fred,
> I have looked at your two dmesg outputs, from kernel-xen and kernel-smp.
> There are two things that struck me.
>
> from the kernel-smp dmesg:
>  > PDC20268: IDE controller at PCI slot 0000:06:05.0
>  > PDC20268: chipset revision 2
>  > PDC20268: ROM enabled at 0xfe8f8000
>  > PDC20268: 100% native mode on irq 26
>  >     ide2: BM-DMA at 0xc400-0xc407, BIOS settings: hde:pio, hdf:pio
>  >     ide3: BM-DMA at 0xc408-0xc40f, BIOS settings: hdg:pio, hdh:pio
>  > hde: ST3120026A, ATA DISK drive
>  > hdf: ST3120026A, ATA DISK drive
>  > ide2 at 0xcc00-0xcc07,0xc882 on irq 26
>  > hdg: ST3120026A, ATA DISK drive
>  > hdh: ST3120026A, ATA DISK drive
>
> This didn't seem to be in the kernel-xen dmesg output.
> I wonder if you are missing the kernel module for the
> PDC20268 harware?
It wasn't configured. I recompiled the kernel with the pdc202xx_new
built-in. I am waiting for a chance to reboot the server and test.
Both old and new are enabled in my sles9 kernel config file.
>
> Looking in /lib/modules/2.6.11.4-21.9-xen/kernel/drivers/ide/pci
> on my machine, I see two candidates, pdc202xx_new.ko and pdc202xx_old.ko
> I don't know which one of those would work. Do you have either of these
> loaded (lsmod)? You might need to put one of these modules in your
> initrd maybe.
>
> The other thing that struck me was the interrupts. The kernel-smp
> seems to be using both ACPI and the IOAPIC hardware. The kernel-xen
> doesn't seem to be doing that. Maybe the interrupt routing is broken
> in the kernel-xen case. I am only speculating and I would not know
> how to fix it in any case.
>
> Hope that helps.
It does. Thanks.
>
fred

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