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Date:      Thu, 16 Dec 1999 07:10:46 -0600
From:      "Richard Seaman, Jr." <dick@tar.com>
To:        Soren Schmidt <sos@freebsd.dk>
Cc:        djb@Wit389306.student.utwente.nl, freebsd-current@FreeBSD.ORG
Subject:   Re: ATA driver problem?? (lost disk contact)
Message-ID:  <19991216071046.A91400@tar.com>
In-Reply-To: <199912160825.JAA71207@freebsd.dk>; from sos@freebsd.dk on Thu, Dec 16, 1999 at 09:25:11AM %2B0100
References:  <19991216091950.B8469@relativity.student.utwente.nl> <199912160825.JAA71207@freebsd.dk>

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On Thu, Dec 16, 1999 at 09:25:11AM +0100, Soren Schmidt wrote:
> It seems Dave J. Boers wrote:
> > 
> > I am still having "disc contact lost messages" regularly too. I've been
> > posting about them on several occasions some time ago.  I haven't been able
> > to pinn it down, however. IF they occur, they occur somewhere between 9:15
> > and 9:20 a.m. OR p.m. But they don't always. This used to be 10:15, but
> > that changed _some weeks after_ the change of daylight saving time. I can't
> > seem to relate it to anything. It is unlikely that it's a power glitch,
> > because the system has been displaying the problem with two different
> > UPS's. 
> > 
> > The machine is running current current's which are regularly updated. It's
> > an ABIT BP6 and the disk causing problems is a WD 7200 RPM 18,2 Gb disk
> > running UDMA33. It's the only IDE disk in the system; the other disks are
> > all SCSI. The system is running 24/7. Other details were posted earlier. 
> 
> There is this thing with the IBM's doing some headcleaning stuff once
> a day/week, but I've never seen any of my IBM's do that (I got plenty
> of them). I'll try to get more info on that from IBM...

I've been running the ata driver for about a week now.  Yesterday,
for the first time, I got the messages posted below, and now again
this morning.

Note the fallback to PIO. Also note that Dec 15 is exactly 1 week
from the first time I ran with the ATA drivers, thought there have
been several reboots in the interim. The times are CST (-600).  The
machine's time is synched using ntp.

Dec 15 07:00:44 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 07:00:45 test /kernel: ata0: resetting devices .. done

[snip]

Dec 15 19:01:02 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:02 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:07 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:07 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:07 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:07 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:12 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:12 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:12 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:12 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:17 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:17 test /kernel: ata0-master: ad_timeout: trying fallback to PIO mode
Dec 15 19:01:17 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:17 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:17 test /kernel: ata0: resetting devices .. done
Dec 15 19:01:22 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 15 19:01:22 test /kernel: ata0: resetting devices .. done

[snip]

Dec 16 07:01:24 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 16 07:01:24 test /kernel: ata0: resetting devices .. done
Dec 16 07:01:29 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 16 07:01:29 test /kernel: ata0: resetting devices .. done
Dec 16 07:01:34 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 16 07:01:34 test /kernel: ata0: resetting devices .. done
Dec 16 07:01:39 test /kernel: ata0-master: ad_timeout: lost disk contact - resetting
Dec 16 07:01:39 test /kernel: ata0: resetting devices .. done


Setup:

Dec 11 11:31:02 test /kernel: ata-pci0: <SiS 5591 ATA controller> irq 14 at device 0.1 on pci0
Dec 11 11:31:02 test /kernel: ata-pci0: Busmastering DMA supported
Dec 11 11:31:02 test /kernel: ata0 at 0x01f0 irq 14 on ata-pci0
Dec 11 11:31:02 test /kernel: ata1 at 0x0170 irq 15 on ata-pci0

[snip]

Dec 11 11:31:02 test /kernel: ata-isa0: already registered as ata0
Dec 11 11:31:02 test /kernel: ata-isa1: already registered as ata1

[snip]

Dec 11 11:31:02 test /kernel: ad0: <IBM-DJNA-371800/J78OA30K> ATA-4 disk at ata0 as master
Dec 11 11:31:02 test /kernel: ad0: 17206MB (35239680 sectors), 34960 cyls, 16 heads, 63 S/T, 512 B/S
Dec 11 11:31:02 test /kernel: ad0: 16 secs/int, 32 depth queue, UDMA33
Dec 11 11:31:02 test /kernel: ad1: <Maxtor 85120A8/AA8Z2726> ATA-3 disk at ata0 as slave 
Dec 11 11:31:02 test /kernel: ad1: 4884MB (10003392 sectors), 9924 cyls, 16 heads, 63 S/T, 512 B/S
Dec 11 11:31:02 test /kernel: ad1: 16 secs/int, 1 depth queue, DMA
Dec 11 11:31:02 test /kernel: ad2: <Maxtor 91152D8/WAS82739> ATA-4 disk at ata1 as master
Dec 11 11:31:02 test /kernel: ad2: 10991MB (22510656 sectors), 22332 cyls, 16 heads, 63 S/T, 512 B/S
Dec 11 11:31:02 test /kernel: ad2: 16 secs/int, 1 depth queue, UDMA33


-- 
Richard Seaman, Jr.           email: dick@tar.com
5182 N. Maple Lane            phone: 262-367-5450
Chenequa WI 53058             fax:   262-367-5852


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