linux-kernel - Re: [PATCH] JMicron JM20337 USB-SATA data corruption bugfix

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Date:	Fri, 01 Aug 2008 20:32:02 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Alex Buell <alex.buell@...ted.org.uk>
CC:	linux-kernel@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Tomas Styblo <tripie@...n.org>, linux-usb@...r.kernel.org,
	usb-storage@...ts.one-eyed-alien.net
Subject: Re: [PATCH] JMicron JM20337 USB-SATA data corruption bugfix - device
 152d:2338

Alex Buell wrote:
> On Fri, 1 Aug 2008 22:15:04 +0100, I waved a wand and this message
> magically appears in front of Alex Buell:
> 
>> I've done a lot of mkfs and fsck, haven't seen any problems so far.
>> Fingers crossed that this patch works. 
> 
> Spoke too soon, that patch that was posted doesn't work for me. Here's
> my log:
> 
> Aug  1 23:18:08 lithium scsi 5:0:0:0: Direct-Access     SAMSUNG  SP1213C          0-30 PQ: 0 ANSI: 2 CCS
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] 234493056 512-byte hardware sectors (120060 MB)
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Write Protect is off
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Mode Sense: 00 38 00 00
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Assuming drive cache: write through
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] 234493056 512-byte hardware sectors (120060 MB)
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Write Protect is off
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Mode Sense: 00 38 00 00
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Assuming drive cache: write through
> Aug  1 23:18:08 lithium sda: sda1
> Aug  1 23:18:08 lithium sd 5:0:0:0: [sda] Attached SCSI disk
> Aug  1 23:18:08 lithium sd 5:0:0:0: Attached scsi generic sg1 type 0
> Aug  1 23:18:08 lithium usb-storage: device scan complete
> Aug  1 23:19:11 lithium sd 5:0:0:0: [sda] Sense Key : 0x0 [current] 
> Aug  1 23:19:11 lithium sd 5:0:0:0: [sda] ASC=0x0 ASCQ=0x0

These patches (mine or Alan's) won't stop those messages from showing 
up. The request should get retried, though.

> Aug  1 23:19:11 lithium ERROR: (device sda1): dbAllocNext: Corrupt dmap page
> Aug  1 23:19:11 lithium ERROR: (device sda1): dbAllocNext: Corrupt dmap page

Not sure what is producing these messages?

> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] Sense Key : 0x0 [current] 
> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] ASC=0x0 ASCQ=0x0
> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] Sense Key : 0x0 [current] 
> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] ASC=0x0 ASCQ=0x0
> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] Sense Key : 0x0 [current] 
> Aug  1 23:19:20 lithium sd 5:0:0:0: [sda] ASC=0x0 ASCQ=0x0
> Aug  1 23:20:01 lithium cron[13504]: (root) CMD (test -x /usr/sbin/run-crons && /usr/sbin/run-crons )
> Aug  1 23:20:34 lithium usb 1-3.4.3: USB disconnect, address 8
> 
> :-(
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