From: Jack E. Wilkinson (jackw@drbear.COM)
Date: 06/25/93 

From: jackw@drbear.COM (Jack E. Wilkinson)
Subject: aha1542_intr_handle: Unexpected interrupt stops boot
Date: 25 Jun 1993 05:48:48 GMT

I recently purchased the Yggdrasil Linux/GNU/X CDROM distribution and I'm
having a REAL problem in getting it to come up.

Here's my system configuration:
..............................................................................
OPTI 80386-SX/25 motherboard
8mb RAM
5.25" 1.2mb floppy
Micropolis 1578 SCSI disk (351mb)
Archive Viper 2150S SCSI QIC tape drive
Radio Shack/Mitsumi CD-ROM (and controller) (irq=3 dma=3 300h )
WD8003EB ethernet card (irq=5 240 E0000)
AST FourPort serial card on COM1 (irq 4)
serial/parallel card with serial ports disabled (irq=7)
Adaptec 1542B SCSI Controller (irq=11, dma=5 @ 8mhz, 330h DC000) floppy std
hercules clone (with parallel port disabled)
..............................................................................
And here's a transcript (first copied to paper then typed back in. I hope
I got it all correct) of the boot sequence:

LILO Loading linux
Console: mono *MDA 80x25, 8 virtual consoles
Serial driver version 3.94 with AST_FOURPORT AUTO_IRQ enabled
tty08 FourPort at 0x02a0 (irq=4) is a 16540
tty09 FourPort at 0x02a8 (irq=4) is a 16540
tty10 FourPort at 0x02b0 (irq=4) is a 16540
tty11 FourPort at 0x02b8 (irq=4) is a 8250
lp_init: lp1 exists (0), using polling driver
Detection sound card: ProAudio Spectrum (type 3)
Detection sound card: SoundBlaster (type 2)
Detection sound card: AdLib (type 1)
Mitsumi CDROM drive present
Configuring Adaptec at IO: 330, IRQ 11, DMA priority 5
scsi 0: Adaptec 1542
Adaptec 1542 scsi: 1 hosts
   Vendor: MICROP Model: 1578-15MB1036509 Rev: A509
   Type: Direct-Access ANSI SCSI revision: 01 CCS
Detected scsi disk sdo at scsi1, id0, lun0
aha1542_intr_handle: Unexpected interrupt
..............................................................................
And this is where the system stops. The floppy continues to be selected,
but nothing else happens. I have installed an IDE drive just to confirm
that linux boots all the way (and it did), but it's not the drive I plan to
run with. Any suggestions would be VERY much appreciated.

Thank you! 

-- 
Jack E. Wilkinson            \           Drummer Bear Systems
478 W. Hamilton Ave, #243     \          Providing computer and theatre
Campbell, CA  95008           /\         production services since 1984.
I am out, therefore I am!    /  \    jackw@drbear.COM or ...!a2i!drbear!jackw