new dmesg message "dmesg-5.1.15:tty tty2: hash matches" with 5.1.15

[Toralf FÃrster]

at my docked ThinkPad T440s.

I'm just curious what this does mean?

...
sched_clock: Marking stable (765790894, 14019108)->(786693847, -6883845)
registered taskstats version 1
Loading compiled-in X.509 certificates
alg: No test for pkcs1pad(rsa,sha1) (pkcs1pad(rsa-generic,sha1))
Loaded X.509 cert 'Build time autogenerated kernel key: ac61161b25852a930a9d67e7f2b9e5a9633ce42f'
Btrfs loaded, crc32c=crc32c-generic
PM:   Magic number: 7:467:945
cpuid cpu0: hash matches
tty tty2: hash matches
processor cpu0: hash matches
rtc_cmos 00:02: setting system clock to 2019-06-25T16:55:52 UTC (1561481752)
cfg80211: Loading compiled-in X.509 certificates for regulatory database
cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
cfg80211: failed to load regulatory.db
...

TIA
--
Toralf
PGP C4EACDDE 0076E94E