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SubjectPCI problem [was Re: ACPI conflict with USB]
David van Hoose wrote:
> Stian Jordet wrote:
>> Sitat Greg KH <>:
>>> On Thu, May 08, 2003 at 05:50:36PM -0500, David van Hoose wrote:
>>>> I'm wondering if there is any work towards correcting the ACPI
>>>> conflict with USB. On my system, I cannot use any USB devices due to
>>>> a timeout anytime I use ACPI with my kernel. Other people have
>>>> noticed this happening on their systems as well, so I am assuming it
>>>> isn't just on my system.
>>> Have you tried the latest 2.5 kernels? I think this is fixed in 2.5.69
>>> for the majority of people. Also, does booting with "noapic" work for
>>> you?
>> If it is supposed to have been fixed in 2.5.69, that must be the
>> reason usb
>> stopped working with acpi on 2.5.69 for me. Worked fine with 2.5.68.
>> Only three days since I reported it, and you say it is fixed? Gee.
>> David: The consensus on acpi-devel is to report it in bugzilla, and
>> see what
>> happens.
> I'm using kernel 2.5.69-bk3 with this recent test. Booted with noapic,
> and I get thousands of lines of APIC errors. I still get the 'bulk_msg:
> timeout' with USB though.
> This hasn't ever worked for me. First tried with 2.5.54. I don't think I
> tried 2.5.68. Should I and see if it was something in a patch to 2.5.69?

Okay. I think I have figured some things out.
With 2.5.69-bk4, I have ACPI and APM built into my kernel.

If I boot normally, ACPI loads first and I get timeouts and my USB
trackball doesn't register with input.

If I boot with noacpi, I still have the same problem.

If I boot with pci=noacpi, I do *not* have the problem. I still have the
timeout, but my trackball works. However, I have many lines of an
acpi_irq handler and call trace with the comment 'irq 20: nobody
cared!'. I also get 'APIC error on CPU0: 00(40)' and 'APIC error on
CPU0: 40(40)' a couple dozen times each.

If I boot with noacpi *and* pci=noacpi, I have the all of the problems
mentioned; no trackball and the pci=noacpi related problems.

Someone mentioned using noapic, but it doesn't have any effect.

Any questions?


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