Crash of UmTRX transceiver with dual TRX

Thomas Tsou tom at
Mon Jul 8 15:53:26 UTC 2013

On Mon, Jul 8, 2013 at 5:24 PM, Alexander Chemeris
<alexander.chemeris at> wrote:
> On Mon, Jul 8, 2013 at 5:58 PM, Thomas Tsou <tom at> wrote:
>>> i do also get no reception from the phone at second trx (late
>>> assignment, my tester showed me power on TS0 uplink). seems that rx and
>>> tx does not work for some reason.
>> If the slots aren't enabled, then both uplink and downlink will be
>> disabled. This patch should cause Tx slot setting to be ignored and
>> will send whatever core submits. We need the slot setting to set the
>> TSC / RACH correlation, so Rx is not as simple.
>>> also i found that the transceiver leaks about 2 megabytes every second.
>>> after some minutes my test machine runs out of mem space.
>> Should be resolved in the same patch.
> Could you please push this to the osmo-trx repository?

Do we want to permanently disable the filler table? This is a breaking
change for OpenBTS. Or do you just mean the memory leak fix.


More information about the UmTRX mailing list