From: Gunnar Widell (ESE) (sqdqj@arsecandle.org)
Date: Mon Mar 24 2003 - 11:22:07 EET
A couple of weeks ago a described a DCD problem with my Baycom ser12 modem.
Got several answers (thanks) and I was able to solve the problem by adjusting the TCM3105 modem, the "2.6 volt something" on one of the pins.
I used the sethdlc -d command to debug on RX signals... and was able to get the DCD much more stable.
BUT!
Now I have problems with my modem not responding or send any ax25 packets after acouple of hours, up to a day, of operation.
I can see incoming calls (listen -cart) on the channel to my station, but no answer. If I try to make a call myself (call -r bcsf0 sl0zs) the modem does not send anything.
If I then try to unload the baycom driver and start it again all seams to be ok again.
Sometimes when I try to unload it, I get a KERNEL PANIC (something with interupt) and I need to power off my computer.
I have tried several things, thinking this is a kernel problem, tried to compile a 2.4.20 kernel, instead of the 2.4.18-3 I have been running.
I see the same thing... I have tried to load ax25 as module but same result.
My setup is a Pentium 500MHZ with 128 MB and 2.4.18-3 kernel. Rigth now 2.4.20 kernel with same problem.
Will try to compile a 2.4.10 kernel today and see if I get the same problem. Also running IPTables with NAT...
Baycom_ser_fdx 1200 bd modem. DX-spider. NO NODE or IP over radio yet...
Where to continue? No I need to go to a 2.2 kernel or could it still be a configuration problem?
What else can I print to see status of my ax25? The printouts below does not give ME any useful information, but maybe to someone else.
During this printouts I do not see any call attempts on my "listen -cart".
[sm3sgp@c213-100-160-63 sm3sgp]$ call -r bcsf0 sl0zs
GW4PTS AX.25 Connect v1.11
Trying...
[root@c213-100-160-63 linux-2.4.10]# cat /proc/net/ax25
c40ba5e0 bcsf0 SM3SGP-0 SL0ZS-0 1 0 0 0 3 10 0 4 0 3000 0 0 5 15 5 4 256 0 0 13394
c7f97760 bcsf0 SM3SGP-10 * 0 0 0 0 0 10 0 4 0 3000 0 0 0 15 5 4 256 0 0 937
c7f97b60 bcsf0 SM3SGP-6 * 0 0 0 0 0 10 0 4 0 3000 0 0 0 15 5 4 256 0 0 935
[root@c213-100-160-63 linux-2.4.10]#
netstat
Dest Source Device State Vr/Vs Send-Q Recv-Q
SL0ZS-0 SM3SGP-0 bcsf0 SABM SENT 000/000 0 0
* SM3SGP-10 bcsf0 LISTENING 000/000 0 0
* SM3SGP-6 bcsf0 LISTENING 000/000 0 0
[root@c213-100-160-63 linux-2.4.10]#
73 de Gus, SM3SGP
telnet sk3w.shacknet.nu 8000 DX-spider
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This archive was generated by hypermail 2b30 : Mon Mar 24 2003 - 11:24:03 EET