linux-kernel - RE: [git patches] libata fixes

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Message-ID: <01bd01c75fc2$57e70300$4b00a8c0@donald>
Date:	Tue, 6 Mar 2007 08:37:45 +0100
From:	"Paul Rolland" <rol@...917.net>
To:	"'Tejun Heo'" <htejun@...il.com>
Cc:	"'Jeff Garzik'" <jeff@...zik.org>,
	"'Andrew Morton'" <akpm@...ux-foundation.org>,
	"'Linus Torvalds'" <torvalds@...ux-foundation.org>,
	<linux-ide@...r.kernel.org>,
	"'LKML'" <linux-kernel@...r.kernel.org>,
	"'Eric D. Mudama'" <edmudama@...il.com>
Subject: RE: [git patches] libata fixes

Hell Tejun,

I've boot-tested this yesterday, with no real luck... 

1 - Tested on top of 2.6.21-rc2 (hope it's fine for you),
2 - Collected a full dmesg before and after

Extract is :
ata7: PATA max UDMA/100 cmd 0x0000000000019c00 ctl 0x0000000000019882 bmdma
0x00
00000000019400 irq 16
ata8: PATA max UDMA/100 cmd 0x0000000000019800 ctl 0x0000000000019482 bmdma
0x00
00000000019408 irq 16
scsi6 : pata_jmicron
ata7.00: ATAPI, max UDMA/66
ata7.00: configured for UDMA/66
scsi7 : pata_jmicron
ATA: abnormal status 0x7F on port 0x0000000000019807
ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata7.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 36 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata7: soft resetting port
ata7.00: configured for UDMA/66
ata7: EH complete
ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata7.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 36 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata7: soft resetting port
ata7.00: configured for UDMA/66
ata7: EH complete
ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata7.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 36 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata7: soft resetting port
ata7.00: configured for UDMA/66
ata7: EH complete
ata7.00: limiting speed to UDMA/44:PIO4
ata7.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata7.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 36 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata7: soft resetting port
ata7.00: configured for UDMA/44
ata7: EH complete

Hope this helps...

Regards,
Paul

Paul Rolland, rol(at)as2917.net
ex-AS2917 Network administrator and Peering Coordinator

--

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> -----Original Message-----
> From: linux-ide-owner@...r.kernel.org 
> [mailto:linux-ide-owner@...r.kernel.org] On Behalf Of Tejun Heo
> Sent: Monday, March 05, 2007 4:45 PM
> To: rol@...917.net
> Cc: 'Jeff Garzik'; 'Andrew Morton'; 'Linus Torvalds'; 
> linux-ide@...r.kernel.org; 'LKML'; 'Eric D. Mudama'
> Subject: Re: [git patches] libata fixes
> 
> Paul Rolland wrote:
> > Hello,
> > 
> >> Your drive has some issues with NCQ and is scheduled to be 
> blacklisted
> >> such that it isn't enabled.  libata used to ignore the 
> >> condition but now
> >> considers it NCQ protocol violation and fails all pending commands.
> > 
> > OK, do you need an hdparm report to fully identify the disk ?
> 
> Nope, we already know.
> 
> >> libata EH should turn NCQ off automatically after a few of 
> the above
> >> errors.  I'd love to see how that actually works in the field (full
> >> dmesg please).  If it doesn't, it needs fixing.
> > 
> > I'll get you one tonite, I don't have access to the machine 
> right now.
> 
> Great. Thanks.
> 
> -- 
> tejun
> -
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> 

Download attachment "dmesg-2.6.21-rc2.before.bz2" of type "application/octet-stream" (8609 bytes)

Download attachment "dmesg-2.6.21-rc2.after.bz2" of type "application/octet-stream" (8595 bytes)