Hello,

there is a machine with four Ethernet cards 2xRTL8139 (devn-rtl.so) and 2xRTL8169 (devnp-rtl8169.so) running QNX 6.4.1.

Discovered issue occurs at random and is as follows.

When I unplug cable from any ethernet card then console becomes "damaged" and in result all characters entered from 
keyboard are corrupted. 

Sometimes system "hangs" for a while (looks like that something is done intensively just after link down detection).  
After some period of time system operates normally.

Ethernet drivers are started with default values/parameters.
System works fine and stable when link is up all the time.

Has anybody saw similar problem ?
Is it a matter of wrong O/S configuration ?

Regards,
Jacek