Hi
Ok, the kernel is a bit old, but maybe someone has an idea... Running ppp
over irnet, one side with the above kernel, another is a verified
reference system. The following strange fenomena are observed:
1. irdadump on the 2.6.18-rt6 side shows only incoming packets
2. sometimes, especially after a connection break down, the connection is
re-established, but the reference side has empty /proc/net/irda/discovery,
the reason being a couple of missing packets during re-negotiation:
15:06:43.854376 xid:cmd c62da07d > ffffffff S=6 s=0 (14)
15:06:43.944244 xid:cmd c62da07d > ffffffff S=6 s=1 (14)
15:06:44.034244 xid:cmd c62da07d > ffffffff S=6 s=2 (14)
15:06:44.124245 xid:cmd c62da07d > ffffffff S=6 s=3 (14)
15:06:44.214281 xid:cmd c62da07d > ffffffff S=6 s=4 (14)
15:06:44.304289 xid:cmd c62da07d > ffffffff S=6 s=5 (14)
15:06:44.394282 xid:cmd c62da07d > ffffffff S=6 s=* TESTNODE hint=4400 [
Computer LAN Access ] (25)
15:06:46.864376 xid:cmd c62da07d > ffffffff S=6 s=0 (14)
15:06:46.954286 xid:cmd c62da07d > ffffffff S=6 s=1 (14)
15:06:47.044280 xid:cmd c62da07d > ffffffff S=6 s=2 (14)
15:06:47.134293 xid:cmd c62da07d > ffffffff S=6 s=3 (14)
15:06:47.224281 xid:cmd c62da07d > ffffffff S=6 s=4 (14)
15:06:47.314250 xid:cmd c62da07d > ffffffff S=6 s=5 (14)
15:06:47.404249 xid:cmd c62da07d > ffffffff S=6 s=* TESTNODE hint=4400 [
Computer LAN Access ] (25)
15:06:49.391225 snrm:cmd ca=fe pf=1 c62da07d < 0ad5eb46 new-ca=58 (33)
15:06:49.391389 ua:rsp ca=58 pf=1 c62da07d > 0ad5eb46 (32)
15:06:49.448100 rr:cmd < ca=58 pf=1 nr=0 (2)
15:06:49.448172 rr:rsp > ca=58 pf=1 nr=0 (2)
15:06:49.450636 i:cmd < ca=58 pf=1 nr=0 ns=0 LM slsap=16 dlsap=00 CONN_CMD (6)
15:06:49.450817 i:rsp > ca=58 pf=1 nr=1 ns=0 LM slsap=00 dlsap=16 CONN_RSP (6)
I.e., we see 2 discovery packets from TESTNODE, and then the 2.6.18-rt6
host sends directly an SNRM packet without presenting itself first with
its nick... Looks like some timers are confused through highres timers?...
Thanks
Guennadi
---------------------------------
Guennadi Liakhovetski, Ph.D.
DSA Daten- und Systemtechnik GmbH
Pascalstr. 28
D-52076 Aachen
Germany
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