PRACH fails

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Sipos Csaba sipos.csaba at kvk.uni-obuda.hu
Thu Sep 8 12:21:12 UTC 2016


Hi Neels,

> pcu
>  two-phase-access

Thanks for this, it "solved" the problem, the PDP context is active now.

Will put a note on the wiki.

Regards,
Csaba

----- Eredeti üzenet -----
Feladó: "Neels Hofmeyr" <nhofmeyr at sysmocom.de>
Címzett: "Sipos Csaba" <sipos.csaba at kvk.uni-obuda.hu>
Másolatot kap: "OpenBSC Mailing List" <openbsc at lists.osmocom.org>
Elküldött üzenetek: Csütörtök, 2016. Szeptember 8. 13:44:49
Tárgy: Re: PRACH fails

Hi Sipos,

this sounds like https://osmocom.org/issues/1756

You need to either revert f1a7b8fc6651f92a8b7f3f27b7ca05d07f4e44e0 in osmo-pcu
or add this to your pcu config:

pcu
 two-phase-access

Normally, whether to use two phase access is decided on the fly, but this
option enforces two-phase-access for every assignment -- and incidentally works
around the unknown bug.

This issue has been sitting there for some time now, and though adding the
WAIT_ASSIGN state makes sense, we've still not resolved the bug hidden within.
https://gerrit.osmocom.org/218

~Neels

-- 
- Neels Hofmeyr <nhofmeyr at sysmocom.de>          http://www.sysmocom.de/
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