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Date:      Fri, 02 Jul 1999 10:26:41 +0200
From:      Andre Oppermann <oppermann@pipeline.ch>
To:        se@FreeBSD.org
Cc:        freebsd-scsi@FreeBSD.org
Subject:   Re: ncr0: queue is empty
Message-ID:  <377C77C1.4F8ACEE1@pipeline.ch>
References:  <377B1E99.46188B0C@pipeline.ch> <19990702003518.B468@dialup124.mi.uni-koeln.de>

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Stefan Esser wrote:
> 
> On 1999-07-01 09:54 +0200, Andre Oppermann <oppermann@pipeline.ch> wrote:
> > Hi
> >
> > I got this messages today on the screen on my yesterday's 4.0-current
> > box:
> >
> >  ncr0: queue empty
> >
> > The only way to get it back was to hit reset.
> >
> > Is this a known problem?
> >
> > If you need more information I'll provide it, just tell me what you
> > need to know.
> >
> > Please CC me as I'm not on SCSI.
> 
> Hi Andre!
> 
> Sorry, this is not a known problem. Could you offer more details ?

opi# uname -a
FreeBSD opi.flirtbox.ch 4.0-CURRENT FreeBSD 4.0-CURRENT #14: Wed Jun 30
10:06:02
 CEST 1999     opi@opi.flirtbox.ch:/usr/src/sys/compile/opi  i386
opi# uptime
10:08AM  up 1 day, 25 mins, 2 users, load averages: 0.03, 0.01, 0.00

> Are there any other error messages in the logs ?

There is *nothing* in the logs, it wasn't able to write anything to
the disk. However the box didn't lock up, I got a login prompt via
telnet but was not able to log in.

Since yesterday it has been stable and I didn't change anything. As
a side note: This box runs qmail as an mail realy. Sometimes it
beats the disk pretty hard.

> What NCR chip is on that SCSI card ?

from dmesg:

CPU: Pentium/P54C (132.63-MHz 586-class CPU)
...
ncr0: <ncr 53c810 fast10 scsi> irq 10 at device 10.0 on pci0
...
Waiting 15 seconds for SCSI devices to settle
da0 at ncr0 bus 0 target 0 lun 0
da0: <Quantum XP34300 81HB> Fixed Direct Access SCSI-2 device
da0: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled
da0: 4101MB (8399520 512 byte sectors: 255H 63S/T 522C)
changing root device to da0s1a
cd0 at ncr0 bus 0 target 2 lun 0
cd0: <TOSHIBA CD-ROM XM-3401TA 3593> Removable CD-ROM SCSI-2 device
cd0: 4.237MB/s transfers (4.237MHz, offset 8)
cd0: Attempt to query device size failed: NOT READY, Medium not present
cd1 at ncr0 bus 0 target 4 lun 1
cd1: <MATSHITA PD-1 LF-1000 A109> Removable CD-ROM SCSI-2 device
cd1: 5.000MB/s transfers (5.000MHz, offset 8)
cd1: Attempt to query device size failed: NOT READY, Medium not present
da1 at ncr0 bus 0 target 4 lun 0
da1: <MATSHITA PD-1 LF-1000 A109> Removable Optical SCSI-2 device
da1: 5.000MB/s transfers (5.000MHz, offset 8)
da1: Attempt to query device size failed: NOT READY, Medium not present
WARNING: / was not properly dismounted

opi# camcontrol devlist -v
scbus-1 on xpt0 bus 0:
<  >                               at scbus-1 target -1 lun -1 (xpt0)
scbus0 on ncr0 bus 0:
<Quantum XP34300 81HB>             at scbus0 target 0 lun 0 (pass0,da0)
<TOSHIBA CD-ROM XM-3401TA 3593>    at scbus0 target 2 lun 0 (pass1,cd0)
<MATSHITA PD-1 LF-1000 A109>       at scbus0 target 4 lun 0 (pass2,da1)
<MATSHITA PD-1 LF-1000 A109>       at scbus0 target 4 lun 1 (pass3,cd1)
<  >                               at scbus0 target -1 lun -1 ()

opi# grep Id ncr.c
**  $Id: ncr.c,v 1.149 1999/06/15 13:14:56 des Exp $

/usr/src/sys/i386/conf/opi:

controller      ncr0
controller      scbus0
device          da0     #Only need one of these, the code dynamically
grows
device          sa0
device          pass0
device          cd0


Do you need more information? What can I do?

Thanks!
-- 
Andre


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