I have two maxtor disks showing a similar problem. Not
sure if its exactly the same issue. smartctl tests
indicated that the disks are ok. I will try your patch
and let you know if it fixes the issues.

More detailed info:

satalink0: port 0: device present, speed: 1.5Gb/s
wd0 at atabus0 drive 0: <Maxtor 6V160E0>
wd0: drive supports 16-sector PIO transfers, LBA48
addressing
wd0: 149 GB, 310101 cyl, 16 head, 63 sec, 512
bytes/sect x 312581808 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA
mode 6 (Ultra/133)
wd0(satalink0:0:0): using PIO mode 4, Ultra-DMA mode 6
(Ultra/133) (using DMA)
boot device: wd0

<snip>

satalink0:0:0: lost interrupt
        type: ata tc_bcount: 51200 tc_skip: 0
satalink0:0:0: bus-master DMA error: missing
interrupt, status=0x21
satalink0:0:0: device timeout, c_bcount=51200, c_skip0
wd0k: device timeout writing fsbn 18342834 of
18342834-18342933 (wd0 bn 45613236
; cn 45251 tn 3 sn 39), retrying
satalink0 channel 0: reset failed for drive 0
satalink0:0:0: wait timed out
wd0k: device timeout writing fsbn 18342834 of
18342834-18342933 (wd0 bn 45613236
; cn 45251 tn 3 sn 39), retrying
satalink0 channel 0: reset failed for drive 0
satalink0:0:0: wait timed out

<snip>

satalink0:0:0: wait timed out
wd0k: device timeout writing fsbn 16 of 16-31 (wd0 bn
27270418; cn 27053 tn 15 s
n 49)

<snip> after a reboot and several hours later: 

satalink0:0:0: lost interrupt
        type: ata tc_bcount: 51200 tc_skip: 0
satalink0:0:0: bus-master DMA error: missing
interrupt, status=0x21
wd0k: device timeout writing fsbn 18342834 of
18342834-18342933 (wd0 bn 45613236
; cn 45251 tn 3 sn 39), retrying
satalink0 channel 0: reset failed for drive 0
satalink0:0:0: wait timed out
wd0k: device timeout writing fs



--- Manuel Bouyer <bouyer@antioche.eu.org> wrote:

> On Mon, Mar 05, 2007 at 01:56:02PM -0500, George
> Georgalis wrote:
> > I seem to have come across a quirk for Maxtor SATA
> drives:
> > 
> > wd0 at atabus2 drive 0: <MAXTOR STM3200820AS>
> > wd0: drive supports 16-sector PIO transfers, LBA48
> addressing
> > wd0: 186 GB, 387621 cyl, 16 head, 63 sec, 512
> bytes/sect x 390721968 sectors
> > wd0: 32-bit data port
> > wd0: drive supports PIO mode 4, DMA mode 2,
> Ultra-DMA mode 6 (Ultra/133)
> > wd0(viaide1:0:0): using PIO mode 4, Ultra-DMA mode
> 6 (Ultra/133) (using DMA)
> > wd1 at atabus3 drive 0: <MAXTOR STM3200820AS>
> > wd1: drive supports 16-sector PIO transfers, LBA48
> addressing
> > wd1: 186 GB, 387621 cyl, 16 head, 63 sec, 512
> bytes/sect x 390721968 sectors
> > wd1: 32-bit data port
> > wd1: drive supports PIO mode 4, DMA mode 2,
> Ultra-DMA mode 6 (Ultra/133)
> > wd1(viaide1:1:0): using PIO mode 4, Ultra-DMA mode
> 6 (Ultra/133) (using DMA)
> > 
> > the center command below (only) fails on two new
> drives.
> > 
> >     dd if=/dev/rwd1a of=/dev/null skip=268435391
> count=1
> >     dd if=/dev/rwd1a of=/dev/null skip=268435392
> count=1
> >     dd if=/dev/rwd1a of=/dev/null skip=268435393
> count=1
> > 
> > with kernel messages:
> > 
> > wd1a: error reading fsbn 268435392 of
> 268435392-268435519 (wd1 bn 268435455; cn 266305 tn
> 0 sn 15), retrying
> > wd1: (id not found)
> > 
> > In hex that's fffffc0 which is a little different
> than the Seagate
> > LBA 32/48 quirk that comes up now and then. I'm
> looking for
> > (hopefully) an existing quirk table that I can add
> my drive id to.
> > 
> > If anyone knows where to go from here, please let
> me know.
> 
> Could you try the attached patch against current ?
> This should fix the
> issue for the most common cases, and hopefully it
> won't break any working
> setups.
> 
> -- 
> Manuel Bouyer <bouyer@antioche.eu.org>
>      NetBSD: 26 ans d'experience feront toujours la
> difference
> --
> > Index: wd.c
>
===================================================================
> RCS file: /cvsroot/src/sys/dev/ata/wd.c,v
> retrieving revision 1.337
> diff -u -r1.337 wd.c
> --- wd.c	4 Mar 2007 06:01:44 -0000	1.337
> +++ wd.c	7 Mar 2007 21:35:03 -0000
> @@ -107,7 +107,7 @@
>  
>  #include <prop/proplib.h>
>  
> -#define	LBA48_THRESHOLD		(0xfffffff)	/* 128GB /
> DEV_BSIZE */
> +#define	LBA48_THRESHOLD		(0x10000000)	/* 128GB /
> DEV_BSIZE */
>  
>  #define	WDIORETRIES_SINGLE 4	/* number of retries
> before single-sector */
>  #define	WDIORETRIES	5	/* number of retries before
> giving up */
> @@ -233,29 +233,6 @@
>  	  WD_QUIRK_SPLIT_MOD15_WRITE },
>  	{ "ST380023AS",
>  	  WD_QUIRK_SPLIT_MOD15_WRITE },
> -
> -	/*
> -	 * These seagate drives seems to have issue
> addressing sector 0xfffffff
> -	 * (aka LBA48_THRESHOLD) in LBA mode. The
> workaround is to force
> -	 * LBA48
> -	 * Note that we can't just change the code to
> always use LBA48 for
> -	 * sector 0xfffffff, because this would break
> valid and working
> -	 * setups using LBA48 drives on non-LBA48-capable
> controllers
> -	 * (and it's hard to get a list of such
> controllers)
> -	 */
> -	{ "ST3160021A*",
> -	  WD_QUIRK_FORCE_LBA48 },
> -	{ "ST3160811A*",
> -	  WD_QUIRK_FORCE_LBA48 },
> -	{ "ST3160812A*",
> -	  WD_QUIRK_FORCE_LBA48 },
> -	{ "ST3160023A*",
> -	  WD_QUIRK_FORCE_LBA48 },
> -	{ "ST3160827A*",
> -	  WD_QUIRK_FORCE_LBA48 },
> -	/* Attempt to catch all seagate drives larger than
> 200GB */
> -	{ "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*",
> -	  WD_QUIRK_FORCE_LBA48 },
>  	{ NULL,
>  	  0 }
>  };
> @@ -382,6 +359,12 @@
>  		    ((u_int64_t) wd->sc_params.__reserved6[10] <<
> 32) |
>  		    ((u_int64_t) wd->sc_params.__reserved6[9]  <<
> 16) |
>  		    ((u_int64_t) wd->sc_params.__reserved6[8]  <<
> 0);
> +		if (wd->sc_capacity <= LBA48_THRESHOLD &&
> +		    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0
> &&
> +		    (wd->sc_flags & WDF_LBA) != 0) {
> +			/* no need to use LBA48, LBA will do it */
> +			wd->sc_flags &= ~WDF_LBA48;
> +		}
>  	} else if ((wd->sc_flags & WDF_LBA) != 0) {
>  		aprint_verbose(" LBA addressing\n");
>  		wd->sc_capacity =
> @@ -737,9 +720,7 @@
>  		wd->sc_wdc_bio.flags = ATA_SINGLE;
>  	else
>  		wd->sc_wdc_bio.flags = 0;
> -	if (wd->sc_flags & WDF_LBA48 &&
> -	    (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD ||
> -	    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0))
> +	if (wd->sc_flags & WDF_LBA48)
>  		wd->sc_wdc_bio.flags |= ATA_LBA48;
>  	if (wd->sc_flags & WDF_LBA)
>  		wd->sc_wdc_bio.flags |= ATA_LBA;
> @@ -1599,9 +1580,7 @@
>  	wd->sc_bp = NULL;
>  	wd->sc_wdc_bio.blkno = blkno;
>  	wd->sc_wdc_bio.flags = ATA_POLL;
> -	if (wd->sc_flags & WDF_LBA48 &&
> -	    (blkno > LBA48_THRESHOLD ||
> -    	    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) !=
> 0))
> +	if (wd->sc_flags & WDF_LBA48)
>  		wd->sc_wdc_bio.flags |= ATA_LBA48;
>  	if (wd->sc_flags & WDF_LBA)
>  		wd->sc_wdc_bio.flags |= ATA_LBA;
> 



 
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