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Date: Fri, 17 Nov 1995 11:19:40 +0100
From: "Christoph P. Kukulies" <kuku@gilberto.physik.rwth-aachen.de>
Message-Id: <199511171019.LAA26773@gilberto.physik.rwth-aachen.de>
To: freebsd-hackers@freefall.FreeBSD.org
Subject: pci/ncr 53c810 problem
Sender: owner-hackers@FreeBSD.ORG
Precedence: bulk


I bought a ncr53c810 cheapo PCI controller yesterday and connected 
the SCSI CDROM (Toshiba 3301) to it.
(P90, 32MB, WD8003E, PCI/I P54SP4 Asus board , 3 eIDE drives).
(Toshiba 3301 SCSI, Quantum GrandPrix SCSI connected to the SCSI
PCI controller).
This happened during booting the boot disk:


sd0(ncr0:0:0): Direct-Access
sd0(ncr0:0:0): FAST SCSI-2 100ns (10MB/sec) offset 8.
4106MB (8410200 512 byte sectors)
(ncr0:2:0): "TOSHIBA CD-ROM XM-3301TA 0272" type 5 removable SCSI 2
cd0(ncr0:2:0):CD-ROM
cd0(ncr0:2:0): asynchronous.
cd present.[304677 x 2048 byte records]
vga0 <Display device> rev 0 on pci0:10
pci0:13: CMD, device=0x640, class=storage (ide) [no driver assigned]
rootfs is 1000 Kbyte compiled in MFS


Fatal trap 18: integer divide fault while in kernel mode
instruction pointer     = 0x8:0xf0197f1b
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def 32, gran 1
processor eflags        = resume, IOPL = 0
current process         = 0 (swapper)
interrupt mask          = net tty bio
panic: integer divide fault

syncing disks... done
(I suspect this is a general PCI problem)

Removing the ncr controller and installing the system 
to an IDE drive worked fine. 

BTW, FreeBSD still does not probe a Future Domain 845 SCSI (8 bit)
controller correctly  (this is a successor of the ST02 controller, I
believe). 

--Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de