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Subject: Re: [BUG] Crda oopses the system
From: Maxim Levitsky <maximlevitsky@gmail.com>
To: "Luis R. Rodriguez" <mcgrof@gmail.com>
Cc: Pavel Roskin <proski@gnu.org>,
	linux-wireless <linux-wireless@vger.kernel.org>
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Date: Tue, 12 May 2009 18:05:28 +0300
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On Sun, 2009-05-10 at 12:36 -0700, Luis R. Rodriguez wrote:
> On Sun, May 10, 2009 at 12:34 PM, Maxim Levitsky
> <maximlevitsky@gmail.com> wrote:
> > On Sun, 2009-05-10 at 11:33 -0700, Luis R. Rodriguez wrote:
> >> On Sun, May 10, 2009 at 5:20 AM, Maxim Levitsky <maximlevitsky@gmail.com> wrote:
> >> > On Wed, 2009-05-06 at 16:34 -0400, Pavel Roskin wrote:
> >> >> gdb /lib/modules/`uname -r`/kernel/net/wireless/cfg80211.ko
> >> >
> >> > I have recompiled the kernel with debugging info.
> >> >
> >> > This is new backtrace:

Ok, here is what I found:

The real BUG_ON that fires up is at 

wireless/reg.c: __set_regdom: BUG_ON(!country_ie_regdomain)

Confirmed by replacing it with printk.


I attach a beacon sample that triggers this:


Best regards,
	Maxim Levitsky

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Content-Type: application/octet-stream; name="beacon.pcap"
Content-Transfer-Encoding: base64

1MOyoQIABAAAAAAAAAAAAP//AAB/AAAA5IkJSnACBwDQAAAA0AAAAAAAGABuSAAAAARsCaAAt4EC
AAAAAAAAAIAAAAD///////8ACw4qBIAACw4qBIDQsoFRo7l/AAAAZAAhAAAIVGVjaHdpZmkBCIKE
iwwSlhgkAwEBBQQAAQEABwZJTCABDRILBRUAPwAAQwIAACoBADIEMEhgbN0FAAsOBADdIgALDgIA
AAAAEgwCoQSiC6MMpRKmFqYYpySoMKtIrmC1bLjdLgALDgMC/AmdzrAAoLw8vgc0FdlcJI5bXxlJ
B/V6fLTb0mT0+iHjM8pJCV47nJo=


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