[Bug 1706] pc386: spurious interrupt 7

bugzilla-daemon at rtems.org bugzilla-daemon at rtems.org
Thu May 31 15:23:19 UTC 2012


--- Comment #15 from Ralf Corsepius <ralf.corsepius at rtems.org> 2012-05-31 10:23:19 CDT ---
(In reply to comment #13)
> I have the parallel port
The machine this issues had started with doesn't have a parallel port ;)

(In reply to comment #14)
> I think it is really spurious
If you define "spurious" as "unexpected", then you're right, RTEMS doesn't
expect them and reports them as "spurious".

> where people have had this
> with various Linux kernel configurations.
Well, I am not having any problems with irq7 with Linux on this particular

FWIW: After ca. 36 hours of uptime under Fedora 17 on this machine from today:
# cat /proc/interrupts
   CPU0  CPU1
7:   26     0    IO-APIC-edge

This is very different than RTEMS behaviour, where these "spurious irq 7" seem
to appear at very high rate and in much larger numbers.

What makes me think is this link: http://www.daemon-systems.org/man/isa.4.html

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