From: Greg KH <greg@kroah.com>
To: Karim Yaghmour <karim@opersys.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Weird USB errors on HD
Date: Tue, 19 Jul 2005 15:29:18 -0400 [thread overview]
Message-ID: <20050719192918.GA19803@kroah.com> (raw)
In-Reply-To: <42DD2EA4.5040507@opersys.com>
On Tue, Jul 19, 2005 at 12:47:32PM -0400, Karim Yaghmour wrote:
>
> I have a usb-attached HD that I use from time to time. When it's connected
> to my desktop through a hub it works flawlessly. When connected to my Dell
> D600 Laptop, however, it sometimes randomly exhibits a loud click (as if the
> heads went berzerk) and the device goes unrecognized (i.e. the USB layer drops
> the device and then redetects it again; meanwhile there is FS corruption.)
>
> The same behavior happens with 2.4.x and 2.6.x
>
> In /var/log/messages I see something like:
> hub 3-0:1.0: over-current change on port 1
> hub 1-0:1.0: over-current change on port 3
> ...
> usb 1-3: USB disconnect, address 2
> usb 1-3: new high speed USB device using ehci_hcd and address 3
Ugh, you have a bad device or power supply, or aren't giving it enough
power to drive the thing. Nothing we can do in Linux for that, sorry.
Buy a wall-powered usb hub, that usually helps.
Good luck,
greg k-h
next prev parent reply other threads:[~2005-07-19 19:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-19 16:47 Weird USB errors on HD Karim Yaghmour
2005-07-19 19:29 ` Greg KH [this message]
2005-07-19 19:27 ` Karim Yaghmour
2005-07-19 19:40 ` Greg KH
2005-07-19 20:16 ` Lee Revell
2005-07-19 20:29 ` Greg KH
2005-07-20 14:53 ` Alistair John Strachan
2005-07-26 2:16 ` Karim Yaghmour
[not found] <4s3BX-8X-7@gated-at.bofh.it>
[not found] ` <4s66H-2ai-21@gated-at.bofh.it>
[not found] ` <4s66H-2ai-19@gated-at.bofh.it>
2005-07-27 2:34 ` Robert Hancock
2005-07-27 3:31 ` Grant Coady
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