Lots of piControl error messages in Kernel .log

[eth]

On a running system we noticed, that we have a lot of error messages pushed by piControl. We are not able to interprete this.

The configuration is a Connect CPU, a DO and a MIO module. On the system is running Codesys also.

Can someone explain what that means and how to solve this?

Code: Select all

Oct 27 13:03:41 RevPi64111 kernel: [2166943.411079] piControl: talk with mio for dio data error(addr:30, ret:-70)
Oct 27 13:03:41 RevPi64111 kernel: [2166943.491049] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:41 RevPi64111 kernel: [2166943.491070] piControl: talk with mio for dio data error(addr:30, ret:-70)
Oct 27 13:03:41 RevPi64111 kernel: [2166943.663960] piControl: crc for dio data err(got:254, expect:242)
Oct 27 13:03:42 RevPi64111 kernel: [2166943.901739] piControl: crc for dio data err(got:253, expect:229)
Oct 27 13:03:42 RevPi64111 kernel: [2166944.331212] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:42 RevPi64111 kernel: [2166944.331233] piControl: talk with mio for dio data error(addr:30, ret:-70)
Oct 27 13:03:42 RevPi64111 kernel: [2166944.401084] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:42 RevPi64111 kernel: [2166944.401105] piControl: talk with mio for aio data error(addr:30, ret:-70)
Oct 27 13:03:43 RevPi64111 kernel: [2166944.971205] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:43 RevPi64111 kernel: [2166944.971238] piControl: talk with mio for dio data error(addr:30, ret:-70)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.251064] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.251087] piControl: talk with mio for aio data error(addr:30, ret:-70)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.351076] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.351097] piControl: talk with mio for aio data error(addr:30, ret:-70)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.371098] piControl: recv len from pibridge err(got:0, exp:20)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.371119] piControl: talk with mio for aio data error(addr:30, ret:-70)
Oct 27 13:03:43 RevPi64111 kernel: [2166945.377042] piControl: crc for dio data err(got:0, expect:20)

Thx in advance
Ekki

[u.biakoup]

Dear eth,
Thanks for the detailed report. From your log files I can see lots of error on the backplane bus (piControl). Please check the following steps.

- Check if all PiBridge connectors are connected tighly
- Disable all unnecessary services / applications as the Connect is a avery resource restricted system (only one CPU core, only 700 MHz) and check if the error still occurs

Best Regards,

Ulrich Kouatang Biakoup | Technical Support