linux-kernel - Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately

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Message-ID: <Pine.LNX.4.44L0.0906161429060.5125-100000@iolanthe.rowland.org>
Date:	Tue, 16 Jun 2009 14:50:48 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Thomas Meyer <thomas@...3r.de>
cc:	Jiri Kosina <jkosina@...e.cz>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Frans Pop <elendil@...net.nl>, <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>
Subject: Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately

On Tue, 16 Jun 2009, Thomas Meyer wrote:

> Yes. These patches make usbmon stop abending.
> 
> Successful suspend -> stay in S3 -> resume cylce:

Unfortunately this log is uninterpretable, thanks largely to the two 
mass-storage devices at addresses 9 and 10.  I can't tell what they
are because they don't appear to be listed in the dmesg log you
posted.

The device at address 10 isn't working at all.  It apparently has 4
LUNs but it replies to all commands for all LUNs with an error code
saying that the LUN isn't supported.

The device at address 9 is working, but its I/O clutters up the log.

There's also something at address 4; perhaps an HID device, I can't
tell.

Can you run the test again, this time with no extraneous USB devices 
plugged in?  (That includes hubs.)  And before starting the test, 
collect the contents of /sys/kernel/debug/usb/devices (you'll probably 
have to mount /sys/kernel/debug first).

Alan Stern

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