SGSN Crash

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Seungju Kim admin at manateeshome.com
Mon May 30 14:04:11 UTC 2011


I wonder whether I am the only one experiencing the crash or not. I am using the newest git version with imsi check removed.

Sent from my iPhone

On May 30, 2011, at 3:08 AM, Harald Welte <laforge at gnumonks.org> wrote:

> Hi all,
> 
> On Mon, May 30, 2011 at 08:52:13AM +0200, Holger Hans Peter Freyther wrote:
> 
>> please make yourself gdb and git and create a patch. The struct msgb has
>> detected a mis-use and forced a crash. What is going wrong is in the log, you
>> will need to identify where this msgb got allocated (or change the panic
>> message to print the name of the msgb) and see why it is using the amount of
>> headroom it wants to use.
> 
> I am quite certain it is the "MS Radio Access Capabilities IE" which for
> some reason seems to be _very_ large in this case.  I've seen this
> before, but never was able to hunt it down.  Everything seemed like it
> was _really_ that long.  But it's more likely that we do something wrong
> while parsing it in GMM when the phone sends it.  The SGSN saves this IE
> in its MM contaxt for the phone, and it will transmit it to the BTS in
> every BSSGP message.
> 
> -- 
> - Harald Welte <laforge at gnumonks.org>           http://laforge.gnumonks.org/
> ============================================================================
> "Privacy in residential applications is a desirable marketing option."
>                                                  (ETSI EN 300 175-7 Ch. A6)
> 
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