Tested the interim version from [1] TL;DR: with that it is working base: 4.15.0-13 proposed fix: 4.15.0.16.17
## Base ## $virsh attach-device cpaelzer-bionic hp512.xml error: Failed to attach device from hp512.xml error: cannot limit locked memory of process 10121 to 96468992: Permission denied DMESG: [1031564.759963] audit: type=1400 audit(1523946413.082:15731): apparmor="DENIED" operation="setrlimit" info="cap_sys_resource" error=-13 profile="/usr/sbin/libvirtd" pid=8376 comm="libvirtd" rlimit=memlock value=96468992 peer="libvirt-70a586a2-ef34-4954-91ea-9a6ecab52da3" [1031564.760010] audit: type=1400 audit(1523946413.082:15732): apparmor="DENIED" operation="setrlimit" info="cap_sys_resource" error=-13 profile="/usr/sbin/libvirtd" pid=8376 comm="libvirtd" rlimit=memlock value=96468992 peer="libvirt-70a586a2-ef34-4954-91ea-9a6ecab52da3" ## proposed fixed kernel ## $ virsh attach-device cpaelzer-bionic hp512.xml Device attached successfully No denies in log. Guest log on attach: [ 48.652358] pseries-hotplug-mem: Attempting to hot-add 2 LMB(s) at index 80000008 [ 48.652996] lpar: Attempting to resize HPT to shift 21 [ 48.771485] lpar: Hash collision while resizing HPT [ 48.771491] Unable to resize hash page table to target order 21: -28 [ 48.785406] Built 1 zonelists, mobility grouping on. Total pages: 28174 [ 48.785409] Policy zone: Normal [ 48.785951] lpar: Attempting to resize HPT to shift 21 [ 48.898213] lpar: Hash collision while resizing HPT [ 48.898218] Unable to resize hash page table to target order 21: -28 [ 48.906304] pseries-hotplug-mem: Memory at 80000000 (drc index 80000008) was hot-added [ 48.906305] pseries-hotplug-mem: Memory at 90000000 (drc index 80000009) was hot-added [1]: https://launchpad.net/~canonical-kernel- team/+archive/ubuntu/unstable/+packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1679704 Title: libvirt profile is blocking global setrlimit despite having no rlimit rule To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1679704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs