linux-kernel - 3.4.0-rc7 regression: bluetooth vs. s2ram

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Message-ID: <20120515131453.GA1936@elf.ucw.cz>
Date:	Tue, 15 May 2012 15:14:57 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-bluetooth@...r.kernel.org, marcel@...tmann.org,
	gustavo@...ovan.org, johan.hedberg@...il.com
Subject: 3.4.0-rc7 regression: bluetooth vs. s2ram

Hi!

In 3.4-rc7, if I suspend while bnep0 over btusb is connected, then
resume, system dies with a backtrace. (Unfortunately, it is not
exactly easy to capture).

If I suspend without bnep0 active, resume works. 

(This has worked before, but "before" may mean 3.2 in this case).

Can someone test/reproduce this? Ideas?

									Pavel

PS: Under normal suspend/resume, I see these warnings in the
log. Maybe relevant?

ehci_hcd 0000:00:1d.7: GetStatus port:7 status 003002 0  ACK POWER OWNER sig=se0 CSC
usb 5-2: finish reset-resume
uhci_hcd 0000:00:1d.3: port 1 portsc 0093,00
usb 5-1: finish reset-resume
usb 5-2: reset full-speed USB device number 3 using uhci_hcd
usb 5-2: ep0 maxpacket = 8
usb 5-1: reset full-speed USB device number 2 using uhci_hcd
btusb 5-1:1.0: no reset_resume for driver btusb?
btusb 5-1:1.1: no reset_resume for driver btusb?
btusb 5-1:1.0: forced unbind
usb usb2: suspend_rh (auto-stop)
usb usb3: suspend_rh (auto-stop)
usb usb4: suspend_rh (auto-stop)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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