2.4.21-rc7 hang on boot after spurious 8259A interrupt: IRQ15.

From: Michael Frank (mflt1@micrologica.com.hk)
Date: Thu Jun 12 2003 - 22:36:36 EST

Doing swsusp testing in endless loop. On a P4/2.4G (ACPI=off)
on 192nd boot:

spurious 8259A interrupt: IRQ15.
Calibrating delay loop...


Hit Reset and it rebooted OK

This is the first spurious 8259A interrupt: IRQ15 seen.

I see spurious 8259A interrupt: IRQ7 quite frequently on
varying hardware on both 2.4 and 2.5.

By design, the 8259A delivers a vector 7 when the IRQ
line is deasserted before the IRQ is serviced. This
applies to both edge and level trigger modes. A floating
"wire" or crapy chipset can pickup noise, but the driver
should handle it.

No problems seen with mainboard/cpu/ram in three months.
I dont' think it is HW, but it could be.

Also, spurious 8259A interrupts are quite recent, could
something be wrong with recent 8259A driver?


I am not subscribed, pls cc me

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