linux-kernel - Re: OHCI root_port_reset() deadly loop...

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Date:	Tue, 09 Oct 2007 16:37:08 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Miller <davem@...emloft.net>
Cc:	david-b@...bell.net, linux-usb-users@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, greg@...ah.com
Subject: Re: OHCI root_port_reset() deadly loop...


On Mon, 2007-10-08 at 22:26 -0700, David Miller wrote:
> From: Benjamin Herrenschmidt <benh@...nel.crashing.org>
> Date: Tue, 09 Oct 2007 15:13:36 +1000
> 
> > I'm not even sure module load order is 100% fault proof here since
> > khubd spawns as a thread...
> 
> I'm concerned about that as well, thanks for bringing it up.
> 
> My understanding, however, is that the critical thing is that the EHCI
> device reset being done by the EHCI driver probe occurs and completes
> first.  If that is true, then just making sure EHCI loads initially is
> a sufficient constraint to fix this problem.

Yup, that would be, though I hate that sort of load order
dependencies...

Ben.


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