Promise PDC20268 spurious interrupt

[Mathieu Desnoyers]

This is a MIME-formatted message.  If you see this text it means that your
E-mail software does not support MIME-formatted messages.

--=_Krystal-20181-1013129395-0001-2
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

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 softwa=
re
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=20

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=20

--=_Krystal-20181-1013129395-0001-2
Content-Type: application/pgp-signature
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE8YyCxPyWo/juummgRAg/fAJ99+sekpIWuBUaPBNIAFDEEfbHsXwCfbNBn
90KydsH/MRpho0kpXjsJHMU=
=Q2mM
-----END PGP SIGNATURE-----

--=_Krystal-20181-1013129395-0001-2--