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SubjectRe: Possible cause of "spurious APIC interrupt"
At 04:44 PM 05/23/1998 -0700, Vadim E. Kogan wrote:
>In my case (same MB, 2 PPro233) I *don't* have USB enabled (at least
>it's not in /proc/pci) and I *do* get spurious APIC interrupts. (see my
>message several hours ago). Let's check what other common hardware we
>have - maybe we'll be able to find the problem.
>
>PCI devices found:
> Host bridge: Intel 82441FX Natoma (rev 2).
> ISA bridge: Intel 82371SB PIIX3 ISA (rev 1).
> IDE interface: Intel 82371SB PIIX3 IDE (rev 0).
> Display controller: Matrox Millennium (rev 1).
> SCSI storage controller: NCR 53c825 (rev 2).
> VGA compatible controller: S3 Inc. Trio32/Trio64 (rev 84).
> Ethernet controller: 3Com 3C905 100bTX (rev 0).

I too get spurious APIC interrupts in 2.1.103. The only hardware
I have in common with Vadim is the ncr53c825.

PCI devices found:
Bus 0, device 20, function 0:
SCSI storage controller: NCR Unknown device (rev 4).
Vendor id=1000. Device id=8f.
Medium devsel. IRQ 10. Master Capable. Latency=144. Min Gnt=17.Max Lat=64.
I/O at 0xec00.
Non-prefetchable 32 bit memory at 0xfebcff00.
Non-prefetchable 32 bit memory at 0xfebce000.
(diamond fireport 40)

Bus 0, device 19, function 0:
VGA compatible controller: Texas Instruments Unknown device (rev 1).
Vendor id=104c. Device id=3d07.
Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable. Latency=64. M
in Gnt=192.Max Lat=192.
Non-prefetchable 32 bit memory at 0xfebe0000.
Non-prefetchable 32 bit memory at 0xfe000000.
Non-prefetchable 32 bit memory at 0xfd800000.
(diamond firegl 1000 pro)

Bus 0, device 18, function 0:
SCSI storage controller: NCR 53c825 (rev 2).
Medium devsel. IRQ 9. Master Capable. Latency=64.
I/O at 0xe800.
Non-prefetchable 32 bit memory at 0xfebcfe00.
(tyan fast/wide scsi)

Bus 0, device 17, function 0:
Ethernet controller: Intel 82557 (rev 1).
Medium devsel. Fast back-to-back capable. IRQ 15. Master Capable. Latency=64. M
in Gnt=8.Max Lat=56.
Prefetchable 32 bit memory at 0xffaff000.
I/O at 0xef40.
Non-prefetchable 32 bit memory at 0xfea00000.
(intel etherexpress pro 100)

Bus 0, device 7, function 1:
IDE interface: Intel 82371SB Natoma/Triton II PIIX3 (rev 0).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0xffa0.

Bus 0, device 7, function 0:
ISA bridge: Intel 82371SB Natoma/Triton II PIIX3 (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.

Bus 0, device 0, function 0:
Host bridge: Intel 82441FX Natoma (rev 2).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.

No USB, serial and parallel ports disabled, 8-bit soundblaster
on IRQ 7.

---
chris

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