From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Bill Nottingham <notting@redhat.com>
Cc: linux-kernel@vger.kernel.org,
Alan Stern <stern@rowland.harvard.edu>,
Pavel Machek <pavel@ucw.cz>
Subject: Re: Problems with suspend and USB storage
Date: Thu, 15 May 2008 22:04:15 +0200 [thread overview]
Message-ID: <200805152204.15828.rjw@sisk.pl> (raw)
In-Reply-To: <20080515194259.GA28848@nostromo.devel.redhat.com>
On Thursday, 15 of May 2008, Bill Nottingham wrote:
> Rafael J. Wysocki (rjw@sisk.pl) said:
> > Well, the problem is that USB storage devices are disconnected during suspend
> > and hibernation and connected once again during resume. Then, however, we
> > are not able to tell whether the device in the slot is the same that was in
> > there before the system was put into the sleep state.
>
> 1) If they're disconnected, how come they work as a hibernate device? Or
> are they disconnected twice?
They are disconnected right after the image has been loaded, so the resuming
hibernated kernel sees them as disconnected.
> 2) Isn't USB persist supposed to work around this?
That has been changing recently. Please follow the Alan's advice to debug this
problem.
Thanks,
Rafael
next prev parent reply other threads:[~2008-05-15 20:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-15 16:33 Bill Nottingham
2008-05-15 17:54 ` Tino Keitel
2008-05-15 18:03 ` Bill Nottingham
2008-05-15 19:40 ` Rafael J. Wysocki
2008-05-15 19:42 ` Bill Nottingham
2008-05-15 20:04 ` Rafael J. Wysocki [this message]
2008-05-15 19:55 ` Alan Stern
2008-05-16 12:04 ` Pavel Machek
2008-05-16 7:29 ` Greg KH
2008-05-22 20:59 ` Bill Nottingham
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