[144] in linux-scsi channel archive
NCR 53c810 lockups
daemon@ATHENA.MIT.EDU (Bogdan Urma)
Fri Apr 14 16:56:13 1995
From: Bogdan Urma <bau1@crux2.cit.cornell.edu>
To: linux-scsi@vger.rutgers.edu
Date: Fri, 14 Apr 1995 14:42:36 -0400 (EDT)
Ever since I got a Seagate 31230N SCSI II drive and plugged it into
the NCR 53c810 controler on my 486/PCI motherboard, I've been experiencing
random lockups with Linux. The SCSI disk seems to work fine, but at
random intervals(hours or days) the system just locks up. Since I never
had these problems before when using an IDE drive, I'm attributing these
lockups to the NCR controller and the SCSI drive. One thing I came up with is
that the NCR is using IRQ 9, the ONLY one I can use with it. Is using
IRQ 9 a problem with the NCR? Is anybody else doing it successfully?
What else can be the problem? I'm including the boot up messages. BTW, when
the system locks up, there are no messages reported by syslog, even
though I enabled verbose SCSI in the kernel.
scsi-ncr53c7,8xx : at PCI bus 0, device 1, function 0
scsi-ncr53c7,8xx : NCR53c810 at memory 0xffbfff00, io 0xfc00, irq 9
scsi0 : using io mapped access
scsi0 : using initiator ID 7
scsi0 : using level active interrupts.
scsi0 ; burst length 8
scsi0 : using 40MHz SCSI clock
scsi0 : m_to_n = 0x90, n_to_m = 0xa0, n_to_n = 0xb0
scsi0 : NCR code relocated to 0x2102dc
scsi0 : testing
scsi0 : test 1 started
scsi0 : tests complete.
scsi0 : NCR53c{7,8}xx (rel 3)
scsi : 1 host.
Vendor: SEAGATE Model: ST31230N Rev: 0170
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, id 0, lun 0
scsi : detected 1 SCSI disk total.
SCSI Hardware sector size is 512 bytes on device sda :
Thanks,
Bogdan
------
Bogdan Urma
Cornell University
Email: bau1@crux2.cit.cornell.edu
WWW: http://www.ruph.cornell.edu/burma/homepage.html
