linux-kernel - Re: ext4: total breakdown on USB hdd, 3.0 kernel

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Message-ID: <1403857405.16560.0.camel@linux-fkkt.site>
Date:	Fri, 27 Jun 2014 10:23:25 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Pavel Machek <pavel@....cz>
Cc:	tytso@....edu, kernel list <linux-kernel@...r.kernel.org>
Subject: Re: ext4: total breakdown on USB hdd, 3.0 kernel

On Thu, 2014-06-26 at 22:20 +0200, Pavel Machek wrote:
> Hi!
> 
> Ok, this ext4 filesystem does _not_ have easy life: it is in usb
> envelope, I wanted
> to use it as a root filesystem, and it is connected to OLPC-1.75,
> running some kind
> of linux-3.0 kernels.
> 
> So power disconnects are common, and even during regular reboot, I
> hear disk doing
> emergency parking.
> 
> I don't know how barriers work over USB...

Just like with other SCSI devices.

	HTH
		Oliver


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