On Wed, 11 Nov 2020 10:20:41 +0100, Jan Stary wrote: > This is current/amd64 on an APU2 (dmesg below). > It seems that after every sysupgrade, > there is a storm of messages like these: > > uvn_flush: obj=0x0, offset=0x7c20000. error during pageout. > uvn_flush: WARNING: changes to page may be lost! > > They appear right after the booting sequence is finished, > and never appear again. This does not happen after a regular > reboot, only after sysupgrade's reboot. The logs of the last > three occasions follow.
This happens when /usr/libexec/reorder_kernel runs and your /usr is full. If you have upgraded the system multiple times there is probably cruft in /usr you can remove such as old shared libraries and obsolete binaries. Your removal of /usr/X11R6 probably is what "fixes" it after sysupgrade. - todd
