[Bug 292570] [virtio] virtio-balloon does not balloon correctly

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 22 Apr 2026 21:54:37 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292570

lysfjord.daniel@smokepit.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|Closed                      |In Progress
         Resolution|FIXED                       |---

--- Comment #10 from lysfjord.daniel@smokepit.net ---
Looking at it, there's something strange until I look at the vm in
virt-manager.

Usable seems to be very close to available for some reason, and the faults are
not reported.

This is on a 14.4 VM.

# Before looking
❯ virsh dommemstat "FreeBSD buildd"
actual 3140608
swap_in 0
swap_out 0
major_fault 0
minor_fault 0
unused 18224420
available 18296048
usable 18224420
last_update 1776893227
disk_caches 0
rss 2487048

# After Looking
❯ virsh dommemstat "FreeBSD buildd"
actual 3140608
swap_in 0
swap_out 0
major_fault 503
minor_fault 107626
unused 2167724
available 18296048
usable 2153348
last_update 1776894685
disk_caches 19412
rss 2491400

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