netdev - Re: [PATCH net-2.6 V2] tg3: Fix phylib locking strategy

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Date:	Wed, 07 Oct 2009 03:41:41 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mcarlson@...adcom.com
Cc:	felix@...edded-sol.com, netdev@...r.kernel.org, mchan@...adcom.com,
	andy@...yhouse.net
Subject: Re: [PATCH net-2.6 V2] tg3: Fix phylib locking strategy

From: "Matt Carlson" <mcarlson@...adcom.com>
Date: Mon, 5 Oct 2009 20:55:29 -0700

> O.K.  Here is the latest version.  Felix, can you verify your problem
> is solved with this patch?
> 
> ---
> 
> Felix Radensky noted that chip resets were generating stack trace dumps.
> This is because the driver is attempting to acquire the mdio bus mutex
> while holding the tp->lock spinlock.  The fix is to change the code such
> that every phy access takes the tp->lock spinlock instead.
> 
> Signed-off-by: Matt Carlson <mcarlson@...adcom.com>

I'm going to apply this now to net-2.6, let me know if there are
any updates after testing.
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