Christian,
The error isn't reproducible after installing the libvirt packages
from the PPA you provided. It took around ~42 seconds for the start to succeed.
root@buneary:/home/ubuntu# dpkg -l|grep libvirt
ii libvirt-bin 1.3.1-1ubuntu10.12~ppa1
amd64 programs for the libvirt library
ii libvirt0:amd64 1.3.1-1ubuntu10.12~ppa1
amd64 library for interfacing with different virtualization systems
ii libvirt0-dbg 1.3.1-1ubuntu10.12~ppa1
amd64 library for interfacing with different virtualization systems
- debugging symbols
root@buneary:/home/ubuntu# time virsh start reproducer2
Domain reproducer2 started
real 0m42.134s
user 0m0.016s
sys 0m0.008s
It really allocated all the available huge pages on both nodes (0, 1).
root@buneary:/home/ubuntu# sudo cat /proc/$(pidof qemu-system-x86_64)/numa_maps
| grep huge
7f5500000000 bind:1
file=/dev/hugepages/libvirt/qemu/qemu_back_mem._objects_ram-node1.DBggwd\040(deleted)
huge dirty=62 N1=62 kernelpagesize_kB=1048576
7f64c0000000 bind:0 file=/dev/hugepages/libvirt/qemu/qemu_back_mem
._objects_ram-node0.AmusgD\040(deleted) huge dirty=60 N0=60
kernelpagesize_kB=1048576
root@buneary:/home/ubuntu# cat
/sys/kernel/mm/hugepages/hugepages-1048576kB/free_hugepages
0
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https://bugs.launchpad.net/bugs/1705132
Title:
Large memory guests, "error: monitor socket did not show up: No such
file or directory"
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