Dectmon only recording data partially?

Patrick McHardy kaber at trash.net
Mon Nov 15 14:14:49 UTC 2010


On 15.11.2010 15:06, Erik Tews wrote:
> Am Sonntag, den 14.11.2010, 14:15 +0100 schrieb Erik Tews:
>> Am Sonntag, den 14.11.2010, 14:10 +0100 schrieb Patrick McHardy:
>>> BTW:
>>>
>>>> netlink: message group: 4
>>>> netlink: FPC:
>>> full_slot,page_repetition,basic_a_field_setup,in_min_delay
>>>> netlink: HLC:
>>> adpcm_g721_voice,gap_pap_basic_speech,standard_authentication,location_registration
>>>
>>> It seems your FP doesn't support ciphering, so its possible that it
>>> doesn't broadcast the multi-frame number, which my stack expects.
>>> It shouldn't have locked to the FP in that case though.
>>>
>>> Perhaps the FP broadcasts the MFN at a lesser frequency than defined
>>> in the standard - if the stack doesn't receive the MFN at least every
>>> 8 multiframes (T216), it unlocks from the FP.
>>
>> Well, I tried the base station of my AS150 phone, where I am not sure if
>> it supports ciphering, I guess it doesn't support ciphering.
>>
>> However, I tried my Fritzbox 7270 too, which definitely supports
>> ciphering. I will try again with my Fritzbox.
> 
> OK, here is the kern.log for my Fritzbox. I am running the PCI card on a
> 32 bit Linux system. It takes minutes, until my computer in monitor-mode
> has found the Fritzbox. During the discovery, it finds a lot of other
> FPs. I am running that test in a very populated area with most probably
> a lot of other phones around my house.
> 
> What happens after my box has found the Fritzbox and got a lock on it
> is, that it seems to be able to hold the lock for a few seconds, but
> then runs into a timeout. Then it needs some seconds, but more like
> 10-40 to get the lock again.
> 
> Nov 15 14:57:49 pc2 kernel: [603017.486809] cell0: RX 218329.02.00: timer cd139df8: 218329.2.0
> Nov 15 14:57:49 pc2 kernel: [603017.486817] cell0: RX 218329.02.00: timer cd139df8: schedule for 218329.3.0
> Nov 15 14:57:49 pc2 kernel: [603017.489319] cell0: RX 218329.01.23: timer cd139dd8: 218329.1.23
> Nov 15 14:57:49 pc2 kernel: [603017.489326] cell0: RX 218329.01.23: timer cd139dd8: schedule for 218329.2.23
> Nov 15 14:57:49 pc2 kernel: [603017.494315] DBC slot 6 carrier 7: RSSI: selection: 0 now: 246
> Nov 15 14:57:49 pc2 kernel: [603017.496818] cell0: RX 218329.03.00: timer cd139df8: 218329.3.0
> Nov 15 14:57:49 pc2 kernel: [603017.496827] cell0: RX 218329.03.00: timer cd139df8: schedule for 218329.4.0
> Nov 15 14:57:49 pc2 kernel: [603017.499531] RX 218329.02.20: trx0: Q1: 0 Q2: 1 A/B: 40 carrier: 6 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.499541] cell0: RX 218329.02.23: timer cd139dd8: 218329.2.23
> Nov 15 14:57:49 pc2 kernel: [603017.499546] cell0: RX 218329.02.23: timer cd139dd8: schedule for 218329.3.23
> Nov 15 14:57:49 pc2 kernel: [603017.502040] RX 218329.03.04: trx0: Q1: 1 Q2: 1 A/B: 24 carrier: 8 A-CRC: 0 X-CRC: 0 DBC slot 6 carrier 7: RSSI: selection: 0 now: 246
> Nov 15 14:57:49 pc2 kernel: [603017.506808] cell0: RX 218329.04.00: timer cd139df8: 218329.4.0
> Nov 15 14:57:49 pc2 kernel: [603017.506816] cell0: RX 218329.04.00: timer cd139df8: schedule for 218329.5.0
> Nov 15 14:57:49 pc2 kernel: [603017.509317] cell0: RX 218329.03.23: timer cd139dd8: 218329.3.23
> Nov 15 14:57:49 pc2 kernel: [603017.509324] cell0: RX 218329.03.23: timer cd139dd8: schedule for 218329.4.23
> Nov 15 14:57:49 pc2 kernel: [603017.514539] DBC slot 6 carrier 7: RSSI: selection: 0 now: 246
> Nov 15 14:57:49 pc2 kernel: [603017.514554] RX 218329.04.10: trx0: Q1: 1 Q2: 0 A/B: ae carrier: 9 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.516815] cell0: RX 218329.05.00: timer cd139df8: 218329.5.0
> Nov 15 14:57:49 pc2 kernel: [603017.516824] cell0: RX 218329.05.00: timer cd139df8: schedule for 218329.6.0
> Nov 15 14:57:49 pc2 kernel: [603017.519301] cell0: RX 218329.04.23: timer cd139dd8: 218329.4.23
> Nov 15 14:57:49 pc2 kernel: [603017.519306] cell0: RX 218329.04.23: timer cd139dd8: schedule for 218329.5.23
> Nov 15 14:57:49 pc2 kernel: [603017.524308] DBC slot 6 carrier 7: RSSI: selection: 0 now: 246
> Nov 15 14:57:49 pc2 kernel: [603017.526805] cell0: RX 218329.06.00: timer cd139df8: 218329.6.0
> Nov 15 14:57:49 pc2 kernel: [603017.526813] cell0: RX 218329.06.00: timer cd139df8: schedule for 218329.7.0
> Nov 15 14:57:49 pc2 kernel: [603017.529314] cell0: RX 218329.05.23: timer cd139dd8: 218329.5.23
> Nov 15 14:57:49 pc2 kernel: [603017.529321] cell0: RX 218329.05.23: timer cd139dd8: schedule for 218329.6.23
> Nov 15 14:57:49 pc2 kernel: [603017.534535] DBC slot 6 carrier 7: RSSI: selection: 0 now: 246
> Nov 15 14:57:49 pc2 kernel: [603017.534547] RX 218329.06.08: trx0: Q1: 0 Q2: 0 A/B: 80 carrier: 1 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.536811] cell0: RX 218329.07.00: timer cd139df8: 218329.7.0
> Nov 15 14:57:49 pc2 kernel: [603017.536821] cell0: RX 218329.07.00: timer cd139df8: schedule for 218329.8.0
> Nov 15 14:57:49 pc2 kernel: [603017.539299] cell0: RX 218329.06.23: timer cd139dd8: 218329.6.23
> Nov 15 14:57:49 pc2 kernel: [603017.539305] cell0: RX 218329.06.23: timer cd139dd8: schedule for 218329.7.23
> Nov 15 14:57:49 pc2 kernel: [603017.544302] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.546802] cell0: RX 218329.08.00: timer cd139df8: 218329.8.0
> Nov 15 14:57:49 pc2 kernel: [603017.546810] cell0: RX 218329.08.00: timer cd139df8: schedule for 218329.9.0
> Nov 15 14:57:49 pc2 kernel: [603017.549311] cell0: RX 218329.07.23: timer cd139dd8: 218329.7.23
> Nov 15 14:57:49 pc2 kernel: [603017.549318] cell0: RX 218329.07.23: timer cd139dd8: schedule for 218329.8.23
> Nov 15 14:57:49 pc2 kernel: [603017.554527] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.554541] RX 218329.08.10: trx0: Q1: 1 Q2: 0 A/B: 6e carrier: 3 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.557038] cell0: RX 218329.09.00: timer cd139df8: 218329.9.0
> Nov 15 14:57:49 pc2 kernel: [603017.557048] cell0: RX 218329.09.00: timer cd139df8: schedule for 218329.10.0
> Nov 15 14:57:49 pc2 kernel: [603017.557057] RX 218329.08.14: trx0: Q1: 0 Q2: 0 A/B: a0 carrier: 2 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.559297] cell0: RX 218329.08.23: timer cd139dd8: 218329.8.23
> Nov 15 14:57:49 pc2 kernel: [603017.559302] cell0: RX 218329.08.23: timer cd139dd8: schedule for 218329.9.23
> Nov 15 14:57:49 pc2 kernel: [603017.564299] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.566800] cell0: RX 218329.10.00: timer cd139df8: 218329.10.0
> Nov 15 14:57:49 pc2 kernel: [603017.566808] cell0: RX 218329.10.00: timer cd139df8: schedule for 218329.11.0
> Nov 15 14:57:49 pc2 kernel: [603017.569307] cell0: RX 218329.09.23: timer cd139dd8: 218329.9.23
> Nov 15 14:57:49 pc2 kernel: [603017.569314] cell0: RX 218329.09.23: timer cd139dd8: schedule for 218329.10.23
> Nov 15 14:57:49 pc2 kernel: [603017.574303] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.576808] cell0: RX 218329.11.00: timer cd139df8: 218329.11.0
> Nov 15 14:57:49 pc2 kernel: [603017.576816] cell0: RX 218329.11.00: timer cd139df8: schedule for 218329.12.0
> Nov 15 14:57:49 pc2 kernel: [603017.579294] cell0: RX 218329.10.23: timer cd139dd8: 218329.10.23
> Nov 15 14:57:49 pc2 kernel: [603017.579299] cell0: RX 218329.10.23: timer cd139dd8: schedule for 218329.11.23
> Nov 15 14:57:49 pc2 kernel: [603017.584300] DBC slot 6 carrier 7: RSSI: selection: 0 now: 242
> Nov 15 14:57:49 pc2 kernel: [603017.586796] cell0: RX 218329.12.00: timer cd139df8: 218329.12.0
> Nov 15 14:57:49 pc2 kernel: [603017.586804] cell0: RX 218329.12.00: timer cd139df8: schedule for 218329.13.0
> Nov 15 14:57:49 pc2 kernel: [603017.589306] cell0: RX 218329.11.23: timer cd139dd8: 218329.11.23
> Nov 15 14:57:49 pc2 kernel: [603017.589313] cell0: RX 218329.11.23: timer cd139dd8: schedule for 218329.12.23
> Nov 15 14:57:49 pc2 kernel: [603017.594301] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.596805] cell0: RX 218329.13.00: timer cd139df8: 218329.13.0
> Nov 15 14:57:49 pc2 kernel: [603017.596814] cell0: RX 218329.13.00: timer cd139df8: schedule for 218329.14.0
> Nov 15 14:57:49 pc2 kernel: [603017.599517] RX 218329.12.18: trx0: Q1: 0 Q2: 1 A/B: ee carrier: 6 A-CRC: 0 X-CRC: 0 Z-CRC: 0 Unknown MAC control 6000000000000000
> 
> ### Any idea where that Unknown MAC control comes from?

0x6 is "Tail for use with the first transmission of a B-field "bearer
request" message". This is simply not handled by my code. Often these
are just reception errors or frames received from different FPs/PPs.

> Nov 15 14:57:49 pc2 kernel: [603017.599530] cell0: RX 218329.12.23: timer cd139dd8: 218329.12.23
> Nov 15 14:57:49 pc2 kernel: [603017.599535] cell0: RX 218329.12.23: timer cd139dd8: schedule for 218329.13.23
> Nov 15 14:57:49 pc2 kernel: [603017.604294] DBC slot 6 carrier 7: RSSI: selection: 0 now: 238
> Nov 15 14:57:49 pc2 kernel: [603017.606795] cell0: RX 218329.14.00: timer cd139df8: 218329.14.0
> Nov 15 14:57:49 pc2 kernel: [603017.606803] cell0: RX 218329.14.00: timer cd139df8: schedule for 218329.15.0
> Nov 15 14:57:49 pc2 kernel: [603017.609536] RX 218329.13.22: trx0: Q1: 1 Q2: 0 A/B: 20 carrier: 7 A-CRC: 0 X-CRC: 0 Z-CRC: 0
> Nov 15 14:57:49 pc2 kernel: [603017.609545] cell0: RX 218329.13.23: timer cd139dd8: 218329.13.23
> Nov 15 14:57:49 pc2 kernel: [603017.609551] cell0: RX 218329.13.23: timer cd139dd8: schedule for 218329.14.23
> Nov 15 14:57:49 pc2 kernel: [603017.614301] DBC slot 6 carrier 7: RSSI: selection: 0 now: 234
> Nov 15 14:57:49 pc2 kernel: [603017.616802] cell0: RX 218329.15.00: timer cd139df8: 218329.15.0
> Nov 15 14:57:49 pc2 kernel: [603017.616811] cell0: RX 218329.15.00: timer cd139df8: schedule for 218330.0.0
> Nov 15 14:57:49 pc2 kernel: [603017.619512] RX 218329.14.22: trx0: Q1: 0 Q2: 0 A/B: ca carrier: 8 A-CRC: 0 X-CRC: 0 Unknown MAC control 3000000000000000
> Nov 15 14:57:49 pc2 kernel: [603017.619522] cell0: RX 218329.14.23: timer cd139dd8: 218329.14.23
> Nov 15 14:57:49 pc2 kernel: [603017.619527] cell0: RX 218329.14.23: timer cd139dd8: schedule for 218329.15.23
> Nov 15 14:57:49 pc2 kernel: [603017.624291] DBC slot 6 carrier 7: RSSI: selection: 0 now: 234
> Nov 15 14:57:49 pc2 kernel: [603017.626792] cell0: RX 218330.00.00: timer cd139df8: 218330.0.0
> Nov 15 14:57:49 pc2 kernel: [603017.626800] cell0: RX 218330.00.00: timer cd139df8: schedule for 218330.1.0
> Nov 15 14:57:49 pc2 kernel: [603017.629300] cell0: RX 218329.15.23: timer cd139dd8: 218329.15.23
> Nov 15 14:57:49 pc2 kernel: [603017.629307] cell0: RX 218329.15.23: timer cd139dd8: schedule for 218330.0.23
> Nov 15 14:57:49 pc2 kernel: [603017.629312] timeout, unlock, a: 159 nt: 101 mfn: 9
> 
> ### From here on, it seems to have lost the lock of the FP

Indeed, the multi-frame resync timer has timed out (mfn:9, max is 8).
It seems it didn't receive a valid tail message over the entire
previous period, judging by the log. I'd guess that the transceiver
has drifted off too much. You should be able to see that by watching
the output of dect-transceiver-list for the slot in question.

Does locking to that PF work if you don't use monitor mode?

> Nov 15 14:57:49 pc2 kernel: [603017.629322] cl cd2e0000: MAC_INFO-ind: rpn: 0
> Nov 15 14:57:50 pc2 kernel: [603018.283036] connectionless: identities information: e: 1 class: 0 emc: 0080 fpn: 07405 rpn: 7
> Nov 15 14:57:50 pc2 kernel: [603018.527295] unknown tail a0
> Nov 15 14:57:50 pc2 kernel: [603018.568814] identities information: e: 0 class: 0 emc: 11f0 fpn: 1611c rpn: 0
> Nov 15 14:57:51 pc2 kernel: [603018.731582] extended rf carrier information: rfcars 50000000 band 26 num 1
> Nov 15 14:57:51 pc2 kernel: [603018.954793] connectionless: identities information: e: 0 class: 0 emc: 08a7 fpn: 040b2 rpn: 0
> Nov 15 14:57:51 pc2 kernel: [603018.974890] encctrl: cmd: 1 fmid: 0a3a pmid: 00d34
> Nov 15 14:57:51 pc2 kernel: [603019.179211] identities information: e: 0 class: 0 emc: 006b fpn: 0ff38 rpn: 0
> Nov 15 14:57:51 pc2 kernel: [603019.223252] unknown system information type 7000000000000000
> Nov 15 14:57:52 pc2 kernel: [603019.998634] identities information: e: 0 class: 0 emc: 11f0 fpn: 1691c rpn: 0
> Nov 15 14:57:52 pc2 kernel: [603020.384959] C_S tail sequence number 0
> Nov 15 14:57:52 pc2 kernel: [603020.567434] identities information: e: 0 class: 0 emc: 0397 fpn: 141be rpn: 0
> Nov 15 14:57:52 pc2 kernel: [603020.629240] identities information: e: 0 class: 1 emc: a362 fpn: 00010 rpn: 10
> Nov 15 14:57:53 pc2 kernel: [603020.791895] identities information: e: 0 class: 0 emc: 07f6 fpn: 03463 rpn: 0
> Nov 15 14:57:53 pc2 kernel: [603021.547044] connectionless: identities information: e: 0 class: 0 emc: d31a fpn: 1842c rpn: 6
> Nov 15 14:57:54 pc2 kernel: [603021.994986] page: RFPI: ea9d8 blind full slots: a28
> Nov 15 14:57:54 pc2 kernel: [603022.035430] identities information: e: 0 class: 0 emc: 0a43 fpn: 0c048 rpn: 0
> Nov 15 14:57:54 pc2 kernel: [603022.157050] identities information: e: 0 class: 3 emc: f439 fpn: 0008b rpn: f7
> Nov 15 14:57:54 pc2 kernel: [603022.197227] connectionless: identities information: e: 0 class: 0 emc: 0387 fpn: 14494 rpn: 0
> Nov 15 14:57:55 pc2 kernel: [603022.831636] identities information: e: 0 class: 0 emc: 07f6 fpn: 13443 rpn: 0
> Nov 15 14:57:56 pc2 kernel: [603023.851170] connectionless: identities information: e: 1 class: 3 emc: a183 fpn: 000a9 rpn: 8b
> Nov 15 14:57:56 pc2 kernel: [603024.054154] identities information: e: 0 class: 0 emc: 0804 fpn: 000a2 rpn: 0
> Nov 15 14:57:56 pc2 kernel: [603024.074242] unknown tail a0
> Nov 15 14:57:56 pc2 kernel: [603024.278570] static system information: nr: 0 sn: 6 cn: 9 pscn: 6
> Nov 15 14:57:56 pc2 kernel: [603024.461427] unknown cctrl command: 900000000000000
> Nov 15 14:57:57 pc2 kernel: [603025.054607] C_S tail sequence number 1

This is just random crap received while trying to regain lock.

> Here is another log on the same machine, but this time, it doesn't say a word about unknown MAC control:
> 
> Nov 15 15:03:07 pc2 kernel: [603335.317365] cell0: RX 220315.13.00: timer cd139df8: schedule for 220315.14.0
> Nov 15 15:03:07 pc2 kernel: [603335.319844] cell0: RX 220315.12.23: timer cd139dd8: 220315.12.23
> Nov 15 15:03:07 pc2 kernel: [603335.319850] cell0: RX 220315.12.23: timer cd139dd8: schedule for 220315.13.23
> Nov 15 15:03:07 pc2 kernel: [603335.324850] DBC slot 6 carrier 7: RSSI: selection: 0 now: 234
> Nov 15 15:03:07 pc2 kernel: [603335.327341] cell0: RX 220315.14.00: timer cd139df8: 220315.14.0
> Nov 15 15:03:07 pc2 kernel: [603335.327349] cell0: RX 220315.14.00: timer cd139df8: schedule for 220315.15.0
> Nov 15 15:03:07 pc2 kernel: [603335.329855] cell0: RX 220315.13.23: timer cd139dd8: 220315.13.23
> Nov 15 15:03:07 pc2 kernel: [603335.329862] cell0: RX 220315.13.23: timer cd139dd8: schedule for 220315.14.23
> Nov 15 15:03:07 pc2 kernel: [603335.334847] DBC slot 6 carrier 7: RSSI: selection: 0 now: 234
> Nov 15 15:03:07 pc2 kernel: [603335.337355] cell0: RX 220315.15.00: timer cd139df8: 220315.15.0
> Nov 15 15:03:07 pc2 kernel: [603335.337364] cell0: RX 220315.15.00: timer cd139df8: schedule for 220316.0.0
> Nov 15 15:03:07 pc2 kernel: [603335.340083] RX 220315.14.18: trx0: Q1: 0 Q2: 0 A/B: 80 carrier: 4 A-CRC: 0 X-CRC: 0 Z-CRC: 0 
> Nov 15 15:03:07 pc2 kernel: [603335.340093] cell0: RX 220315.14.23: timer cd139dd8: 220315.14.23
> Nov 15 15:03:07 pc2 kernel: [603335.340099] cell0: RX 220315.14.23: timer cd139dd8: schedule for 220315.15.23
> Nov 15 15:03:07 pc2 kernel: [603335.344846] DBC slot 6 carrier 7: RSSI: selection: 0 now: 234
> Nov 15 15:03:07 pc2 kernel: [603335.347340] cell0: RX 220316.00.00: timer cd139df8: 220316.0.0
> Nov 15 15:03:07 pc2 kernel: [603335.347348] cell0: RX 220316.00.00: timer cd139df8: schedule for 220316.1.0
> Nov 15 15:03:07 pc2 kernel: [603335.349853] cell0: RX 220315.15.23: timer cd139dd8: 220315.15.23
> Nov 15 15:03:07 pc2 kernel: [603335.349860] cell0: RX 220315.15.23: timer cd139dd8: schedule for 220316.0.23
> Nov 15 15:03:07 pc2 kernel: [603335.349865] timeout, unlock, a: 199 nt: 171 mfn: 9

Same problem, multiframe resync has timed out, apparently no valid tails
received.

> Nov 15 15:03:07 pc2 kernel: [603335.349875] cl cd2e0000: MAC_INFO-ind: rpn: 0
> Nov 15 15:03:08 pc2 kernel: [603335.758892] unknown MAC page info 0
> Nov 15 15:03:08 pc2 kernel: [603336.351786] identities information: e: 0 class: 0 emc: 07f6 fpn: 12072 rpn: 0
> Nov 15 15:03:09 pc2 kernel: [603336.761731] identities information: e: 0 class: 0 emc: 07f4 fpn: 13462 rpn: 0
> Nov 15 15:03:09 pc2 kernel: [603337.008980] C_S tail sequence number 0
> Nov 15 15:03:10 pc2 kernel: [603338.090210] C_S tail sequence number 0
> Nov 15 15:03:10 pc2 kernel: [603338.274403] static system information: nr: 0 sn: 5 cn: 2 pscn: 3
> Nov 15 15:03:10 pc2 kernel: [603338.601499] identities information: e: 0 class: 0 emc: 06e4 fpn: 02042 rpn: 0
> Nov 15 15:03:10 pc2 kernel: [603338.643032] connectionless: identities information: e: 1 class: 2 emc: dd7a fpn: 0005f rpn: df
> Nov 15 15:03:11 pc2 kernel: [603338.785825] C_S tail sequence number 1
> Nov 15 15:03:11 pc2 kernel: [603339.280452] C_S tail sequence number 0
> Nov 15 15:03:12 pc2 kernel: [603339.848379] identities information: e: 0 class: 0 emc: 11f0 fpn: 1691c rpn: 0
> Nov 15 15:03:12 pc2 kernel: [603340.093837] C_S tail sequence number 1
> Nov 15 15:03:12 pc2 kernel: [603340.114035] Unknown MAC control d000000000000000
> Nov 15 15:03:12 pc2 kernel: [603340.215766] identities information: e: 0 class: 4 emc: 0410 fpn: 007b1 rpn: d8
> Nov 15 15:03:13 pc2 kernel: [603340.746906] unknown tail a0
> Nov 15 15:03:13 pc2 kernel: [603340.827436] identities information: e: 0 class: 1 emc: 0397 fpn: 00020 rpn: 64
> Nov 15 15:03:13 pc2 kernel: [603340.888397] C_S tail sequence number 1
> Nov 15 15:03:13 pc2 kernel: [603340.970535] full/long page: extend: 1 length: 7000000000000000
> Nov 15 15:03:13 pc2 kernel: [603341.174531] unknown tail a0
> Nov 15 15:03:13 pc2 kernel: [603341.235558] unknown tail a0
> Nov 15 15:03:13 pc2 kernel: [603341.318620] connectionless: identities information: e: 0 class: 4 emc: ce3a fpn: 00020 rpn: 10
> Nov 15 15:03:13 pc2 kernel: [603341.420344] extended rf carrier information: rfcars e0000000 band 22 num 1
> 





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