x86: 0.993
graphic: 0.965
KVM: 0.926
device: 0.915
kernel: 0.847
semantic: 0.766
user-level: 0.736
ppc: 0.693
performance: 0.679
architecture: 0.648
files: 0.608
debug: 0.601
peripherals: 0.578
register: 0.553
network: 0.537
mistranslation: 0.537
VMM: 0.492
permissions: 0.462
vnc: 0.421
PID: 0.398
hypervisor: 0.388
TCG: 0.321
risc-v: 0.316
boot: 0.295
socket: 0.209
arm: 0.189
assembly: 0.150
virtual: 0.101
i386: 0.059

Hugepages are not released after windows guest shutdown
Description of problem:
* Hugepages are not released after windows guest shutdown (tested with server 2019 and 2022), everything is ok with linux guests
* Issue is present in both cases: shutdown is initiated by guest, and with the qemu monitor command ``system_shutdown``
* If the guest is configured with 4G as memory size, hugepages not released may vary but in most cases, only 1G are not released
* Host is a x86_64 linux system, with 1G hugepages only : kernel cmline contains ``default_hugepagesz=1G hugepagesz=1G hugepages=88``
* I've done many tests with qemu components disabled (network, monitor, vnc), issue is still present with basic command line (launched as root) ``qemu-system-x86_64 -cpu host -enable-kvm -smp 4 -machine type=q35,accel=kvm -m 4G -mem-path /mnt/hugepages -drive id=drv0,file=win.qcow2 -nodefaults``
* Same issue with args in command line, with or without prealloc:

        -m 4G -mem-path /mnt/hugepages [-mem-prealloc]
        -m 4G -machine memory-backend=mem0 -object memory-backend-memfd,id=mem0,size=4G,hugetlb=on,hugetlbsize=1G[,prealloc=on]
Additional information:
* Hugepages release process is audited with command ``cat /proc/meminfo``
* I can't find any online documentation to help to troubleshoot used hugepages : articles suggest to audit /proc/[pid]/smaps, but here, issue is raised after qemu process terminates