linux-kernel - Re: [1/2] 2.6.22-rc7: known regressions

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Date:	Sat, 07 Jul 2007 20:28:33 +0200
From:	Marcel Holtmann <marcel@...tmann.org>
To:	David Woodhouse <dwmw2@...radead.org>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Dmitry Torokhov <dtor@...ightbb.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>
Subject: Re: [1/2] 2.6.22-rc7: known regressions

Hi David,

> > I suspect it's more likely that hci_conn_del_sysfs() is running and
> > removing the object representing the ACL connection. That's what the
> > input device's remove event is reporting as 'PHYSDEVPATH' on the
> > occasions that it _doesn't_ oops. 
> 
> Yes, that seems to be it. It happens when we hit the idle_timeout and
> the kernel tears down the connection. Adding a mdelay(5000) into
> hidp_session() just before calling input_unregister_device(), and
> hard-coding idle_to to 1 second, makes it nice and easy to reproduce...
> 
> Marcel? Can we deregister the input devices earlier...?

looks good to me.

Signed-off-by: Marcel Holtmann <marcel@...tmann.org>

Regards

Marcel


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