The heart of the patchset are the last two patches. Long story short, if a domain is configured to be pinned onto a set of NUMA nodes stricly, we use both CGroups and numa_set_membind(). While we can change the former later on a user's wish, we can't change the latter. Therefore, any subsequent memory enlargement (e.g. via virsh setmem $dom) will result in memory still being allocated from old NUMA nodes and OOM killer interference is likely to occur.
Michal Privoznik (6): virCgroupNewPartition: Fix comment virCgroupNew: Enhance debug message virCgroupController: Check the enum fits into 'int' qemuDomainGetNumaParameters: Check for the correct CGroup controller qemuProcessHook: Call virNuma*() iff needed virLXCControllerSetupResourceLimits: Call virNuma*() iff needed src/lxc/lxc_controller.c | 31 +++++++++++++++++++++++++------ src/qemu/qemu_driver.c | 2 +- src/qemu/qemu_process.c | 32 ++++++++++++++++++++++++++++---- src/util/vircgroup.c | 6 +++--- src/util/vircgroup.h | 5 +++++ 5 files changed, 62 insertions(+), 14 deletions(-) -- 2.0.5 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
