netdev - Re: [Bugme-new] [Bug 19492] New: sky2 wake on line stopped working in 2.6.34/2.6.35

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Date:	Mon, 4 Oct 2010 15:14:04 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	arekm@...en.pl
Cc:	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org, netdev@...r.kernel.org,
	Stephen Hemminger <shemminger@...tta.com>,
	Ben Hutchings <bhutchings@...arflare.com>
Subject: Re: [Bugme-new] [Bug 19492] New: sky2 wake on line stopped working
 in 2.6.34/2.6.35


(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Sat, 2 Oct 2010 08:30:14 GMT
bugzilla-daemon@...zilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=19492
> 
>            Summary: sky2 wake on line stopped working in 2.6.34/2.6.35
>            Product: Drivers
>            Version: 2.5
>     Kernel Version: 2.6.34, 2.6.35
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Network
>         AssignedTo: drivers_network@...nel-bugs.osdl.org
>         ReportedBy: arekm@...en.pl
>         Regression: Yes
> 

A regression.

> sky2 WOL feature stopped working in 2.6.34 kernel. It was working fine in
> 2.6.33. ethtool 2.6.35 (and some earlier version before).
> 
> # ethtool -s eth0 wol g
> # ethtool eth0|grep Wake
>         Supports Wake-on: pg
>         Wake-on: g
> # ethtool -i eth0
> driver: sky2
> version: 1.28
> firmware-version: N/A
> bus-info: 0000:05:00.0
> # poweroff
> 
> When googling for solution I found /sys/class/net/eth0/device/power/wakeup
> which contains "disabled" before AND after I run ethtool. So I echoed "enabled"
> there, too but it didn't help. The machine doesn't wake up on magick packet.
> 
> ...
>

I can't immediately see any recent changes to the driver in that area
apart from "ethtool: Change ethtool_op_set_flags to validate flags". 
Perhaps you could run

	strace -f ethtool -s eth0 wol g

and see if it's getting an error when setting WOL mode.  If so, ethtool
is broken ;)

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