Hi all!

I'm workig with this set:
linux-2.4.18
RTAI 3.0 (rthal-5g-2.4.18.patch for PPC)
RTNET 0.7.1

I'm getting a very strange behavior when I going to set up Rtnet:

PPC host with IP: 10.10.1.1:
[ with the network wire unplugged from switch]
# lsmod
loopback-rt             1412   1
mpc8xx_fec-rt           5398   1
rtnet                  45856   0  [loopback-rt mpc8xx_fec-rt]
rtai_rtdm              11424   0  [rtnet]
rtai_sem               18544   0  [mpc8xx_fec-rt rtnet]
rtai_up                44400   0  [mpc8xx_fec-rt rtnet rtai_rtdm rtai_sem]
rtai_malloc             5224   0  [rtai_rtdm rtai_sem rtai_up]
rtai_hal               22480   0  [loopback-rt mpc8xx_fec-rt rtnet
rtai_rtdm rtai_sem rtai_up rtai_malloc
# ./rtifconfig rtlo up 127.0.0.1
# ./rtifconfig rteth0 up 10.10.1.1
# ./rtroute solicit 10.10.1.2 dev rteth0
fec_enet_start_xmit: data len is 42
fec_enet_start_xmit: transmission start triggered
fec_enet_interrupt: interrupt handler
fec_enet_tx: TX path
RTnet: TXI: c669f040 c6531330 0
fec_enet_tx: dev_kfree_rtskb, sk buffer freed!

[These are my traces. Obiously the ARP cache is not correct because of
we are not connected to switch]

# ./rtroute
Host Routing Table
Hash    Destination     HW Address              Device
00      0.0.0.0         00:00:00:00:00:00                   rtlo
01      255.255.255.1   FF:FF:FF:FF:FF:FF       rteth0
01      10.10.1.1       00:00:00:00:00:00       rtlo
01      127.0.0.1       00:00:00:00:00:00       rtlo

[At this moment I connect the network wire to switch and try again]

#  ./rtroute solicit 10.10.1.2 dev rteth0
fec_enet_start_xmit: data len is 42
fec_enet_start_xmit: transmission start triggered

[I repeat this command several times with the same behavior until I
obtain the output queue full]

# ./rtroute solicit 10.10.1.2 dev rteth0
fec_enet_start_xmit: data len is 42
fec_enet_start_xmit: transmission start triggered
fec_enet_start_xmit: rtnetif_stop_queue!
# ./rtroute solicit 10.10.1.2 dev rteth0
fec_enet_start_xmit: data len is 42
RTnet: rteth0: tx queue full!.
hard_start_xmit returned 1

Please, anybody has an idea?
Best regards.

--
Javi Roman

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