mpc5200 fec error

[Eric Millbrandt]

Hello all,

 

I am testing a 2.6.29.3 (with preempt_rt patches) kernel on a phytec
pcm030 and am getting a kernel hang when testing the fec Ethernet
controller.  The error only occurs when running the preempt-patched
kernel, an unmodified kernel works fine.  Is anyone out there using
preempt_rt on an MPC5200 successfully?

 

Eric

 

root at rudolph-ui:/root> iperf -c linux-5200bdevl01 -P 2 -i 1 -p 5001 -f k
-t 600

------------------------------------------------------------

Client connecting to linux-5200bdevl01, TCP port 5001

TCP window size: 36.2 KByte (default)

------------------------------------------------------------

[  4] local 10.1.4.88 port 37872 connected with 10.1.5.234 port 5001

[  3] local 10.1.4.88 port 37871 connected with 10.1.5.234 port 5001

[ ID] Interval       Transfer     Bandwidth

[  3]  0.0- 1.0 sec  3824 KBytes  31326 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  4]  0.0- 1.0 sec  3656 KBytes  29950 Kbits/sec

[SUM]  0.0- 1.0 sec  7480 KBytes  61276 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  4]  1.0- 2.0 sec  3760 KBytes  30802 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  3]  1.0- 2.0 sec  3752 KBytes  30736 Kbits/sec

[SUM]  1.0- 2.0 sec  7512 KBytes  61538 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  4]  2.0- 3.0 sec  3728 KBytes  30540 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  3]  2.0- 3.0 sec  3816 KBytes  31261 Kbits/sec

[SUM]  2.0- 3.0 sec  7544 KBytes  61800 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  3]  3.0- 4.0 sec  3712 KBytes  30409 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  4]  3.0- 4.0 sec  3824 KBytes  31326 Kbits/sec

[SUM]  3.0- 4.0 sec  7536 KBytes  61735 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  3]  4.0- 5.0 sec  3968 KBytes  32506 Kbits/sec

[ ID] Interval       Transfer     Bandwidth

[  4]  4.0- 5.0 sec  3624 KBytes  29688 Kbits/sec

[SUM]  4.0- 5.0 sec  7592 KBytes  62194 Kbits/sec

[ 5761.999175] net eth0: transmit queue overrun

[ 5762.003591] net eth0: transmit queue overrun

[ 5762.007948] net eth0: transmit queue overrun

[ 5762.012302] net eth0: transmit queue overrun

[ 5762.016658] net eth0: transmit queue overrun

[ 5762.021013] net eth0: transmit queue overrun

[ 5762.025381] net eth0: transmit queue overrun

[ 5762.029735] net eth0: transmit queue overrun

[ 5762.034090] net eth0: transmit queue overrun

[ 5762.038445] net eth0: transmit queue overrun

[ 5767.000928] net eth0: transmit queue overrun

[ 5767.005278] net eth0: transmit queue overrun

[ 5767.009634] net eth0: transmit queue overrun

[ 5767.013990] net eth0: transmit queue overrun

[ 5767.018345] net eth0: transmit queue overrun

[ 5767.022701] net eth0: transmit queue overrun

...



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