Unable to locate IOAPIC for GSI ???

[blnlx]

After installing Fedora 14, following error messages appear at boot:

ERROR: Unable to locate IOAPIC for GSI 4
ERROR: Unable to locate IOAPIC for GSI 3
ERROR: Unable to locate IOAPIC for GSI 7
ERROR: Unable to locate IOAPIC for GSI 13
ERROR: Unable to locate IOAPIC for GSI 8
ERROR: Unable to locate IOAPIC for GSI 1
ERROR: Unable to locate IOAPIC for GSI 12

What is the meaning of this?

[DBelton]

are they preventing your system from booting?

here is an explanation of them, which the messages are new to the 2.6.35 kernels...

>> [ 0.089969] ERROR: Unable to locate IOAPIC for GSI 13
>> [ 0.090556] ERROR: Unable to locate IOAPIC for GSI 8
>> [ 0.091104] ERROR: Unable to locate IOAPIC for GSI 12
>> [ 0.091375] ERROR: Unable to locate IOAPIC for GSI 1
>> [ 0.093195] ERROR: Unable to locate IOAPIC for GSI 4
>> [ 0.094342] ERROR: Unable to locate IOAPIC for GSI 10
>> [ 0.096335] ERROR: Unable to locate IOAPIC for GSI 6
>
>The new warning originates from acpi_get_override_irq, which I changed to
>use helper functions that warn when they fail.
>
>When IOAPICs and ACPI are enabled in a kernel and run on ACPI hardware
>that doesn't use the ioapics the pnp acpi code calls this function,
>looking for ACPI irq overrides. ACPI irq overrides exist only in the
>ioapic case so this function will never succeed. So make the function
>fail fast so we don't call into help functions that legitimately
>complain when they fail.
>
>Tested-by: Avinash Kurup <kurup.avinash [at] gmail>
>Signed-off-by: "Eric W. Biederman" <ebiederm [at] xmission>

[blnlx]

No, these IOAPIC errors do not prevent me from booting.
However, I'm not feeling that comfortable when my system welcomes me with a list of errors.

Can this affect the functioning of my video card? I do have a huge problem when I turn on the "Desktop Effects".

[DBelton]

no, this shouldn't affect your video card.

These are just warning telling you it cant override something because it doesn't exist. The outcome is the same. If you had IOAPICS, then ACPI would override them. Since you don't have them, then ACPI doesn't need to override them and can do it's thing normally.

[blnlx]

Originally Posted by DBelton

no, this shouldn't affect your video card.

These are just warning telling you it cant override something because it doesn't exist. The outcome is the same. If you had IOAPICS, then ACPI would override them. Since you don't have them, then ACPI doesn't need to override them and can do it's thing normally.

Thank you for the explanation!

I shall open a new thread for the video card issue.

[talalek]

i have the same problem, i have an AMD 1GHz TS-ALR4, so, i should't worry about that warning?

txs.

---------- Post added at 05:05 PM ---------- Previous post was at 05:01 PM ----------

in order to enable ioapic i must update my bios?

[David Batson]

I get the same or similar error on my ThinkPad T42 with F14. Although I don't notice any problem with functionality, it seems there should be a way to prevent this error message on boot...