messages in syslog about ION_FUNCTION_FREE/ION_FUNCTION_IMPORT

[guru]

Due to my luck yesterday with the broken display, I flashed another E4.5 Aquaris to the latest version with the installer. It says as version Ubuntu 16.04(OTA-23).

While looking for something in /var/log/syslog I see there lines like this:

Aug 16 12:47:30 ubuntu-phablet kernel: [ 512.386289]  [1976][73][ION_FUNCTION_FREE(1)]can't found corresponding buffer 0xc999f300 in buffer created list 0 [1976][1976][ION_FUNCTION_IMPORT(1)]can't found corresponding buffer 0xce34fa80 in buffer created list 0

(maybe there are small typos, because I copied it by hand)

The messages are printed with high frequency (1 line per second). What does this mean?

UPDATE
I have here the complete syslog from the moment of boot until the moment these messages first appear: http://www.unixarea.de/syslog.txt

Matthias

[lduboeuf]

@guru Just had that today with testing contact vcf import:
https://gitlab.com/ubports/development/core/address-book-app/-/issues/208