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On Thu, 02 Dec 2004 09:30:52 +0000
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
>
> > I finally did some more tests with system with nForce3-250Gb SATA
> > controller, whose driver locks the system at boot time when inside xen.
>
> Looks like an interrupt problem. We plan to start using more of the
> Linux DOM0 platform code in our next release which should avoid these
> problems. It also may be that you have some large-numbered IRQs and
> we can simply extend Xen to support those. Can you post the output of
> 'cat /proc/interrupts' from your working Linux installation?
/proc/interrupts on 2.6.9:
| CPU0
| 0: 2002603 XT-PIC timer
| 1: 5087 IO-APIC-edge i8042
| 8: 2 IO-APIC-edge rtc
| 9: 0 IO-APIC-level acpi
| 12: 67 IO-APIC-edge i8042
| 14: 467 IO-APIC-edge ide0
| 15: 2331 IO-APIC-edge ide1
| 17: 80 IO-APIC-level EMU10K1
| 19: 261861 IO-APIC-level fcdsl
| 20: 2 IO-APIC-level ehci_hcd
| 21: 88475 IO-APIC-level libata, ohci_hcd
| 22: 0 IO-APIC-level ohci_hcd, NVidia CK8S
| 23: 198342 IO-APIC-level eth0
| NMI: 0
| LOC: 2002471
| ERR: 1
| MIS: 0
private mail is following, but I guess that it may be useful for other
ppl too...
On Thu, 02 Dec 2004 09:33:44 +0000
Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
>
> Further to my previous mail, I actually suspect that your setup is
> doomed until we start using the ACPI code in DOM0 Linux. It looks like
> you need a pretty complete ACPI configuration in order to set up IRQ
> routing correctly. That is getting done under Xen/XenLinux and so your
> sata interrupts are going nowhere. :-(
>
> Does your system work with 2.4 kernels? Does your system work if you
> compile a non-ACPI kernel?
When booting with 2.6.9 without ACPI, it hangs at the same position as
Linux does inside Xen. (at least according to the messages displayed
usually, but I think they should do the job...)
Since I haven't run any 2.4 Kernel on my installation I use normally, I
built & tried to boot a 2.4.28 on a smaller "rescue" installation, which
hasn't got up-do-date GCCs. I first tried with 3.4.1, then with 3.3.3
(most current GCC from portage is 3.3.4/3.4.3), but the result was the
same: The last line I get is from grub saying "file ok, booting the
kernel" or sth. like that, an then the system does a reset. (giving
panic=10 didn't change anything)
I could try compiling a 2.4 kernel with GCC 3.3.4 and with updated
bin86, but I guess this would change anyhting (?)
Also I'm using "unofficial" gentoo profiles, which use
gcc-kernel-headers from 2.6 instead of from 2.4, but well, the problem
occurs fat before glibc is even touched :))
I'd happy to try & report when the changes you mentioned take place.
(unstable bk or whatever I wouldn't mind...)
As soon as this is working, can you say whether it will be possible to
give a 2.4 non-priviledged kernel functional access a PCI device? (the
reason for me asking this is that I have a freakin' mostly-binary-only
driver for my ADSL hardware, but I some version of that driver for 2.4
is said to be stable, so my idea was to run a driver domain using 2.4
for this crappy piece of hardware...)
> -- Keir
Regards,
Milan
- --
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