Openhab2 http binding show mmc0 errors in dmesg

Add-ons Bindings
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1

OpenHab run on RPi4. The items are set to read values using the http binding 1.14.0. Doing dmesg on the RPi4 it reports lots of errors mmc0.

Platform information:

  • RPi with openhabian and openHAB 2.5.0~S1549-1 (Build #1549)
  • Some 20 items use the HTTP Binding “binding-http1 - 1.14.0”, with from 1 to 10s refresh rate
  • Web-server runs on the same RPi, responding to all requests from HTTP Binding

Example item (~ 20 in total):

Number    	XT_invVoltInV12    		"AC voltage in V12[%d V]" 		{ http="<[http://<ip:port>/invVoltInV12:1000:JSONPATH($.invVoltInV12)]" }

Error excerpt from dmesg (there are some 100 lines spread over 5 days , from second 7777 to today at 412000 secs):

[258933.125342] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00000000
[258933.125351] mmc0: sdhci: Caps:      0x45ee6432 | Caps_1:   0x0000a525
[258933.125360] mmc0: sdhci: Cmd:       0x00000c1b | Max curr: 0x00080008
[258933.125369] mmc0: sdhci: Resp[0]:   0x00000c00 | Resp[1]:  0x003a437f
[258933.125378] mmc0: sdhci: Resp[2]:   0x325b5900 | Resp[3]:  0x00400e00
[258933.125386] mmc0: sdhci: Host ctl2: 0x00000000
[258933.125395] mmc0: sdhci: ADMA Err:  0x00000000 | ADMA Ptr: 0xded38208
[258933.125403] mmc0: sdhci: ============================================
[259336.328248] mmc0: Timeout waiting for hardware interrupt.
[259336.328260] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========

Help is appreciated.

2

This sounds like a hardware problem with an SD card, not anything to do with a binding…

1 Like
3

@namraccr Thanks :slight_smile: I will change the card and check. It will be monday, as the RPi is in a remote location.

4

This was the pronblem. Thanks :slight_smile: