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

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Message-Id: <200906142031.38358.elendil@planet.nl>
Date:	Sun, 14 Jun 2009 20:31:36 +0200
From:	Frans Pop <elendil@...net.nl>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	thomas@...3r.de, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, stern@...land.harvard.edu
Subject: Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately

Rafael J. Wysocki wrote:

>> 00:02.1 USB Controller: nVidia Corporation MCP55 USB Controller (rev a2) (prog-if 20 [EHCI])
>>       Subsystem: Micro-Star International Co., Ltd. Device 7250
>>       Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>>       Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>       Latency: 0 (750ns min, 250ns max)
>>       Interrupt: pin B routed to IRQ 23
>>       Region 0: Memory at fe9fac00 (32-bit, non-prefetchable) [size=256]
>>       Capabilities: [44] Debug port: BAR=1 offset=0098
>>       Capabilities: [80] Power Management version 2
>>               Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
>>               Status: D0 PME-Enable- DSel=0 DScale=0 PME+
>>       Kernel driver in use: ehci_hcd
> 
> PME+ means that the USB EHCI controller will signal a PME as soon as it is
> enabled, so if PME is enabled on the controller before suspend, it will
> wake up the system.
> 
> Please send a boot log.

Was already included in the initial message...

I wonder if this device could be the cause:
[   40.232873] wlan0: register 'rndis_wlan' at usb-0000:00:02.1-6.1,
               Wireless RNDIS device, BCM4320b based, 00:16:01:cf:56:29
[   40.232907] usbcore: registered new interface driver rndis_wlan
[...]
[   41.705516] rndis_wlan 1-6.1:1.0: rndis media disconnect
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