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

To: Arnd Bergmann <arnd@xxxxxxxx>
Subject: Re: 2.6.38: XFS/USB/HW issue, or failing USB stick?
From: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>
Date: Fri, 18 Mar 2011 15:51:47 -0400 (EDT)
Cc: Tim Soderstrom <tim@xxxxxxxxxxxxxxxxxxxxx>, linux-usb@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Alan Piszcz <ap@xxxxxxxxxxxxx>, flashbench-results@xxxxxxxxxxxxxxxx
In-reply-to: <201103182033.02793.arnd@xxxxxxxx>
References: <alpine.DEB.2.02.1103181104020.30018@xxxxxxxxxxxxxxxx> <201103182010.37455.arnd@xxxxxxxx> <alpine.DEB.2.02.1103181524400.21715@xxxxxxxxxxxxxxxx> <201103182033.02793.arnd@xxxxxxxx>
User-agent: Alpine 2.02 (DEB 1266 2009-07-14)


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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