aic7xxx problem on 4-way PPro, 2.1.106

Noah Beck (noah@ecn.purdue.edu)
Fri, 19 Jun 1998 22:44:49 -0500


I have a server:

4 200MHz PPro processors
256MB RAM
Matrox Millenium PCI 4MB RAM
2 AIC 7880 SCSI controllers on board, BIOS v.1.26B3S2
3-button ps/2 mouse
Intel 82557-based PCI ethernet
IDE CDROM on primary master
1 9GB Seagate drive with NT (political reasons) on the
first SCSI controller (possibly a hot-swappable bay)
1 1GB old IBM AS400 drive with Linux on second SCSI controller

I obtained the AS400 drive from my office-mate, who used it
under NT on his computer with no problems for a while. I
did an ftp install of RedHat 5.1 on it. I set up a 128M
swap partition (which I don't think it has touched yet) and
the rest is the root partition (sdb2). I downloaded 2.1.106
and compiled for UP first, booted successfully, then compiled
for SMP and booted. I am using a boot disk made with a
slightly modified version of RedHat's mkbootdisk (no initrd).
Stuff needed for boot is compiled into the kernel (SCSI, ext2fs,
etc.), ethernet & psaux are modules.

Anyway, when the SMP kernel tries to initialize, it gets to the
point where it finds both AIC controllers, then prints

(scsi0:0:-1:-1) scanning channel for devices

followed by

scsi: aborting command due to timeout: pid 0, scsi0, channel 0,
id 0, lun 0, Test Unit Ready 00 00 00 00 00

This does not happen with a UP 2.1.106 kernel. Any ideas, anyone?
The kernel is the only thing nonstandard on RH5.1.

Thanks,
Noah

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