** Changed in: ubuntu-z-systems Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1841447
Title: Periodic Msg "BUG: non-zero pgtables_bytes on freeing mm: -16384" Status in Ubuntu on IBM z Systems: Confirmed Status in linux package in Ubuntu: New Bug description: A message "BUG: non-zero pgtables_bytes on freeing mm: -16384" occurs frequently during IPL of Ubuntu 18.04.1 and 18.04.2 and also periodically appear very often on the console device after the IPL has finished, which is very annoying. See the output of the dmesg and journalctl -b commands are attached. Both versions 18.04.1 and 18.04.2 use the same kernel: root@m83lp37:~# uname -a Linux m83lp37 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:03 UTC 2019 s390x s390x s390x GNU/Linux root@m83lp37:~# The problem appears on LPAR as well as on a z/VM guest. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1841447/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp