Seeing these log entries in Bionic:
audit: type=1400 audit(1525128782.144:24): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/sbin/mysqld" pid=24878 comm="apparmor_parser" audit: type=1400 audit(1525128782.420:25): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=24896 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 audit: type=1400 audit(1525128782.428:26): apparmor="DENIED" operation="capable" profile="/usr/sbin/mysqld" pid=24896 comm="mysqld" capability=2 capname="dac_read_search" audit: type=1400 audit(1525128782.448:27): apparmor="DENIED" operation="capable" profile="/usr/sbin/mysqld" pid=24896 comm="mysqld" capability=2 capname="dac_read_search" audit: type=1400 audit(1525128783.004:28): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=24930 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 audit: type=1400 audit(1525128787.392:29): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=25112 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 audit: type=1400 audit(1525128792.144:30): apparmor="STATUS" operation="profile_replace" info="same as current profile, skipping" profile="unconfined" name="/usr/sbin/mysqld" pid=25238 comm="apparmor_parser" audit: type=1400 audit(1525128797.052:31): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=25462 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 audit: type=1400 audit(1525128797.272:32): apparmor="DENIED" operation="open" profile="/usr/sbin/mysqld" name="/sys/devices/system/node/" pid=25475 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=106 ouid=0
Seeing these log entries in Bionic:
audit: type=1400 audit(152512878 2.144:24) : apparmor="STATUS" operation= "profile_ replace" info="same as current profile, skipping" profile= "unconfined" name="/ usr/sbin/ mysqld" pid=24878 comm="apparmor_ parser" 2.420:25) : apparmor="DENIED" operation="open" profile= "/usr/sbin/ mysqld" name="/ sys/devices/ system/ node/" pid=24896 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 2.428:26) : apparmor="DENIED" operation="capable" profile= "/usr/sbin/ mysqld" pid=24896 comm="mysqld" capability=2 capname= "dac_read_ search" 2.448:27) : apparmor="DENIED" operation="capable" profile= "/usr/sbin/ mysqld" pid=24896 comm="mysqld" capability=2 capname= "dac_read_ search" 3.004:28) : apparmor="DENIED" operation="open" profile= "/usr/sbin/ mysqld" name="/ sys/devices/ system/ node/" pid=24930 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 7.392:29) : apparmor="DENIED" operation="open" profile= "/usr/sbin/ mysqld" name="/ sys/devices/ system/ node/" pid=25112 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 2.144:30) : apparmor="STATUS" operation= "profile_ replace" info="same as current profile, skipping" profile= "unconfined" name="/ usr/sbin/ mysqld" pid=25238 comm="apparmor_ parser" 7.052:31) : apparmor="DENIED" operation="open" profile= "/usr/sbin/ mysqld" name="/ sys/devices/ system/ node/" pid=25462 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=0 ouid=0 7.272:32) : apparmor="DENIED" operation="open" profile= "/usr/sbin/ mysqld" name="/ sys/devices/ system/ node/" pid=25475 comm="mysqld" requested_mask="r" denied_mask="r" fsuid=106 ouid=0
audit: type=1400 audit(152512878
audit: type=1400 audit(152512878
audit: type=1400 audit(152512878
audit: type=1400 audit(152512878
audit: type=1400 audit(152512878
audit: type=1400 audit(152512879
audit: type=1400 audit(152512879
audit: type=1400 audit(152512879