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Date:      Wed, 15 Dec 1999 20:30:13 +0100 (MET)
From:      hm@hcs.de (Hellmuth Michaelis)
To:        freebsd-current@freebsd.org (FreeBSD Current)
Subject:   tagged openings now 31, 25, 2; ncr0: queue empty.
Message-ID:  <19991215193013.B006D38E5@hcswork.hcs.de>
In-Reply-To: <19991215102811.A35D338E6@hcswork.hcs.de> from Hellmuth Michaelis at "Dec 15, 99 11:28:11 am"

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From the keyboard of Hellmuth Michaelis:
> 
> from time to time (i have no idea how to reproduce it or what causes it) i get
> the following message on the console of one of my current systems:
> 
> 	(da1:ncr0:0:1:0): tagged openings now 31
> 
> The drive causing this is a
> 
> da1 at ncr0 bus 0 target 1 lun 0
> da1: <CONNER CFP4207W  4.28GB 1524> Fixed Direct Access SCSI-2 device 
> da1: Serial Number DX91RXG 
> da1: 20.000MB/s transfers (10.000MHz, offset 15, 16bit), Tagged Queueing Enabled
> da1: 4096MB (8388608 512 byte sectors: 255H 63S/T 522C)
> 
> on a Tekram:
> 
> ncr0: <ncr 53c875 fast20 wide scsi> irq 15 at device 8.0 on pci0
> ncr0: minsync=12, maxsync=137, maxoffs=16, 128 dwords burst, large dma fifo
> ncr0: single-ended, open drain IRQ driver, using on-chip SRAM
> 
> Should i be concerned about this ?

Just to follow up on this, i just saw on that device:

(da1:ncr0:0:1:0): tagged openings now 31
(da1:ncr0:0:1:0): tagged openings now 25
(da1:ncr0:0:1:0): tagged openings now 2

and then scrolling:

ncr0: queue empty.
ncr0: queue empty.
ncr0: queue empty.
....

over and over the console screen. The only way to get out of this was to 
reboot.

Now i am concerned :-)

What is happening there ? Is the drive going bad ?

hellmuth
-- 
Hellmuth Michaelis                                    Tel   +49 40 559747-70
HCS Hanseatischer Computerservice GmbH                Fax   +49 40 559747-77
Oldesloer Strasse 97-99                               Mail  hm [at] hcs.de
22457 Hamburg                                         WWW   http://www.hcs.de


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