Promise PDC20268 spurious interrupt

From: Mathieu Desnoyers (compudj@krystal.dyndns.org)
Date: Thu Feb 07 2002 - 19:49:54 EST

I have a problem here since I plugged my second hard disk on my Promise
Ultra 100 TX2 PDC20268 controller. It occurs all the time when I use software
raid 0. I looked at the LKML archives, and this problem does not seems to be
solved. There is a simpler way to generate the problem than to use raid.

It occurs when I use dd for reading on my both hard disks in parallel.
The disks are both masters of their channel.

When I do this test, The message I get is

spurious 8259A interrupt: IRQ7.
spurious 8259A interrupt: IRQ15.

And I can look at /proc/interrupts and see the ERR counter increment at
a phenomenal speed.

I wonder if this problem is due to the linux driver support or if it is
a hardware bug.

OpenPGP public key: http://krystal.dyndns.org:8080/key/compudj.gpg
Key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68


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This archive was generated by hypermail 2b29 : Thu Feb 07 2002 - 21:01:09 EST