We had a project need to use devn-rtl8169.so to drive rtl8111c network chip on two identical motherboard to do data 
exchange. Beacuse our system was use QNX 6.3, we got the driver from QNX forum : " http://community.qnx.com/sf/sfmain/do
/go/projects.networking/discussion.drivers.topc3599?_pagenum=4 " 
However, when we test the network by "IPERF", we often see many "devn-rtl8169: rx error/overflow interrupt, resetting" 
message shown in sloginfo. 
Our test process sown as follow:
On A Side(server)
a. "slay -f io-net"
b. "io-net -d /root/devn-rtl8169.so did=0x8168,vid=0x10ec,pci=1 -ptcpip"
c. "ifconfig en0 192.168.0.1 netmask 255.255.255.0"
d. "/./root/iperf -s -B 192.168.0.1 -w 130k &"
 
On B Side(client)
a'. "slay -f io-net"
b'. "io-net -d /root/devn-rtl8169.so did=0x8168,vid=0x10ec,pci=1 -ptcpip"
c'. "ifconfig en0 192.168.0.2 netmask 255.255.255.0"
d'. "/./root/iperf -c 192.168.0.2 -t 259200 -w 130k -i 10 &"
 
e. reboot B Side and execute a' b' c' d' again

Then, we use the same hardware to test the same process on LINUX and use the driver which delivered by realtek. But we 
didn't see any releated message in "dmesg". What is any problem in qnx's driver? 

Finally, does QNX ever consider deliver devn-rtl8169.so for version 6.3 or any patch file to maintain it officially?

Thanks..