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	Sun, 24 Jan 2010 06:42:31 -0500
Subject: Re: Starting hostapd causes kernel panic
From: Johannes Berg <johannes@sipsolutions.net>
To: "Philip A. Prindeville" <philipp_subx@redfish-solutions.com>
Cc: Kalle Valo <kalle.valo@iki.fi>, Pavel Roskin <proski@gnu.org>,
	Markus Baier <markus_baier@web.de>,
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Date: Sun, 24 Jan 2010 12:42:21 +0100
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On Sun, 2010-01-24 at 00:14 -0800, Philip A. Prindeville wrote:
> On 01/23/2010 09:58 PM, Kalle Valo wrote:
> > "Philip A. Prindeville" <philipp_subx@redfish-solutions.com> writes:
> >=20
> >>>> Whatever you prefer.  Either way, the panic is fixed now!
> >>>>    =20
> >>> Great, and sorry about that! I'll send a patch to insert the else too=
.
> >>>
> >>> johannes
> >>>  =20
> >>
> >> Did you send that patch? I'd like to apply it. Please copy me when
> >> you send it out.
> >=20
> > Johannes was busy and I sent the patch instead. It's here:
> >=20
> > http://marc.info/?l=3Dlinux-wireless&m=3D126427124317427&w=3D2
> >=20
>=20
> I just applied it to compat-wireless-2010-01-20 and ran it on an AR5413 b=
ut it still panics:
>=20
>=20
> BUG: unable to handle kernel NULL pointer dereference at 0000019f
> IP: [<e0993e7f>] :mac80211:invoke_tx_handlers+0x5be/0xe6a
> *pde =3D 00000000
> Oops: 0000 [#1] PREEMPT

> Pid: 1652, comm: hostapd Tainted: P          (2.6.27.42-astlinux #1)
> EIP: 0060:[<e0993e7f>] EFLAGS: 00010246 CPU: 0
> EIP is at invoke_tx_handlers+0x5be/0xe6a [mac80211]

Are you sure you reloaded the modules etc. correctly? Kinda looks like
the same issue. Otherwise can you send me in private your mac80211.ko
and hostapd config file?

johannes

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