Re: [libvirt] [PATCH 0/3] several cgroups/cpuset fixes

Hi, i already explained some of the cgroup problems in some detail so i will not do that again. https://www.redhat.com/archives/libvir-list/2015-October/msg00876.html I managed to solve some of the problems in the current codebase, and am now sharing the patches. But they are really just half of what i had to change to get libvirt to behave in a system with isolated cpus. Other changes/hacks i am not sending here because they do not work for the general case: - create machine.slice before starting libvirtd (smaller than root) ... and hope it wont grow - disabling cpuset.cpus inheritance in libvirtd - allowing only xml with fully specified cputune - set machine cpuset to (vcpupins | emulatorpin) I am not sure how useful the individual fixes are, i am sending them as concrete examples for the problems i described earlier. And i am hoping that will start a discussion. Henning Henning Schild (3): util: cgroups do not implicitly add task to new machine cgroup qemu: do not put a task into machine cgroup qemu cgroups: move new threads to new cgroup after cpuset is set up src/lxc/lxc_cgroup.c | 6 ++++++ src/qemu/qemu_cgroup.c | 23 ++++++++++++++--------- src/util/vircgroup.c | 22 ---------------------- 3 files changed, 20 insertions(+), 31 deletions(-)