Re: 2.6.35-rc* regression: ERROR: Unable to locate IOAPIC for GSI*

From: Meelis Roos
Date: Fri Jul 09 2010 - 06:02:17 EST


> > > Meelis do you have a boot trace from 2.6.34? Meelis can you confirm
> > > that you don't come up in XT_PIC mode in 2.6.34?
> >
> > Now that was a good question. It's XT-PIC in 2.6.34 too, just the ERROR:
> > lines are not there.
>
> So it's not really a regression, just a bit noisier bootup?

Yes, seems so - sorry for the overreaction over the ERROR's.
Both old and new kernels have XT-PIC-XT in /proc/interrupts and both
work.

Notable differneces from dmesg. The TSC calibration one is interesting.
2.6.34 tells a failure for some reason. Re-testing 2.6.34 results in
normal "Fast TSC calibration using PIT"...

-nr_irqs_gsi: 16
+nr_irqs_gsi: 17


-Fast TSC calibration failed
-TSC: PIT calibration matches PMTIMER. 1 loops
-Detected 897.087 MHz processor.
-Calibrating delay loop (skipped), value calculated using timer frequency.. 1794.17 BogoMIPS (lpj=3588348)
+Fast TSC calibration using PIT
+Detected 896.953 MHz processor.
+Calibrating delay loop (skipped), value calculated using timer frequency.. 1793.90 BogoMIPS (lpj=3587812)


+ERROR: Unable to locate IOAPIC for GSI 8
+ERROR: Unable to locate IOAPIC for GSI 13
+ERROR: Unable to locate IOAPIC for GSI 12
+ERROR: Unable to locate IOAPIC for GSI 1
+ERROR: Unable to locate IOAPIC for GSI 6
+ERROR: Unable to locate IOAPIC for GSI 4
+ERROR: Unable to locate IOAPIC for GSI 3
+ERROR: Unable to locate IOAPIC for GSI 7


--
Meelis Roos (mroos@xxxxxxxx)
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