linux-kernel - Re: 2.6.38: XFS/USB/HW issue, or failing USB stick?

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Date:	Fri, 18 Mar 2011 15:51:47 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	Arnd Bergmann <arnd@...db.de>
cc:	Tim Soderstrom <tim@...cowproductions.org>,
	linux-usb@...r.kernel.org, xfs@....sgi.com,
	linux-kernel@...r.kernel.org, Alan Piszcz <ap@...arrain.com>,
	flashbench-results@...ts.linaro.org
Subject: Re: 2.6.38: XFS/USB/HW issue, or failing USB stick?



On Fri, 18 Mar 2011, Arnd Bergmann wrote:

> On Friday 18 March 2011 20:26:46 Justin Piszcz wrote:
>>> The numbers are jumping around a bit with the incorrectly guessed erasesize.
>>> These values should be more like the ones in the first test. Can you rerun
>>> with --erasesize=$[4 * 1024 * 1024]?
>> Hi, I put the box back into production with ext2, if it fails again I can
>> re-run.
>
> Ok. Did you make sure to get the partition table right? It's
> rather tricky with fdisk, since it normally doesn't align
> to 4 MB. You can see this using 'fdisk -l -u /dev/sda'.

Erm, probably not right then..

Disk /dev/sda: 8220 MB, 8220835840 bytes
154 heads, 56 sectors/track, 1861 cylinders, total 16056320 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x99df019d

    Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2048    16056319     8027136   83  Linux

>
>>> Also, what is the output of 'lsusb' for this stick? I'd like to add the
>>> data to https://wiki.linaro.org/WorkingGroups/KernelConsolidation/Projects/FlashCardSurvey
>> Sure,
>> Bus 001 Device 002: ID 0325:ac02 OCZ Technology Inc ATV Turbo / Rally2 Dual Channel USB 2.0 Flash Drive
>>
>
> Added now, thanks!
>
> Do you also have the product name for this?
10007937 OCZ OCZUSBR2TDC-8GB 8GB Rally2 Turbo USB 2.0 Flash Drive Retail
Was $116.99 on 01-05-2009.

Was purported (at the time) to be one of the fastest USB sticks available,
according to benchmarks.


>
> 	Arnd
>
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