fixing the case where we use every single page in 1 vm
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
OpenStack Compute (nova) |
Triaged
|
Undecided
|
Unassigned |
Bug Description
Got this error: qemu-kvm: -object memory-
My Hardware: 32CPU / 32G memory
Flavor: 30 vCPU / 24000 MB (24G) memory
Grub hugemem setting: hugepagesz=2M hugepages=12288
[root@ostack-
Node 0 AnonHugePages: 0 kB
Node 0 HugePages_Total: 6144
Node 0 HugePages_Free: 394
Node 0 HugePages_Surp: 0
Node 1 AnonHugePages: 0 kB
Node 1 HugePages_Total: 6144
Node 1 HugePages_Free: 394
Node 1 HugePages_Surp: 0
Solution was set 23000 MB (23G) in flavor to make it work.
IRC: sean-k-mooney suggested to open bug to use every single page in 1 vm.
we used to have a bug in the libvirt driver where we effectly had an off by 1 error and could not use all pages. in this case i belive this might actully be a qemu issue but i asked for this to be filed so we can figure out if it is a qemu issue or not.