My current FreeBSD installation does not take care at all of the /boot/loader.conf's commented lines.

From: Mario Marietto <marietto2008_at_gmail.com>
Date: Wed, 11 Jan 2023 22:57:29 UTC
Hello.

This is my */boot/loader.conf :*


loader_logo="daemon"
#vmm_load="YES"
nmdm_load="YES"
if_tap_load="YES"
if_bridge_load="YES"
bridgestp_load="YES"
fusefs_load="YES"
tmpfs_load="YES"
verbose_loading="YES"
#pptdevs="0/2/0 2/0/0 2/0/1 2/0/2 2/0/3"
kern.geom.label.disk_ident.enable="0"
kern.geom.label.gptid.enable="0"
cryptodev_load="YES"
zfs_load="YES"
kern.racct.enable=1
aio_load="YES"
vboxdrv_load="YES"
kern.cam.scsi_delay=10000


I REALLY want to know why,if I have commented the two lines related to
bhyve,*#vmm_load="YES"* and "*#pptdevs="0/2/0 2/0/0 2/0/1 2/0/2 2/0/3*" I'm
still able to launch a bhyve vm passing thru the gpus whose PCI addresses
are inside the pptdevs argument. It seems that my system does not care at
all to read the comment that I have added inside the */boot/loader.conf*
file. Or there is some different reason that I would like to understand.
This is the proof. Despite the comment on the line line "*#vmm_load="YES*",I
still see that the vmm module is still loaded :


# kldstat | grep vmm

10    1 0xffffffff82794000   5848b8 vmm-intel.ko


as well as the ppt "driver",it is still attached,despite I have commented
the line "*#pptdevs="0/2/0 2/0/0 2/0/1 2/0/2 2/0/3"*


pciconf -l

ppt4@pci0:0:2:0:        class=0x038000 rev=0x02 hdr=0x00 vendor=0x8086
device=0x3e98 subvendor=0x1458 subdevice=0xd000

ppt0@pci0:2:0:0:        class=0x030000 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1e04 subvendor=0x19da subdevice=0x2503

ppt1@pci0:2:0:1:        class=0x040300 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x10f7 subvendor=0x19da subdevice=0x2503

ppt2@pci0:2:0:2:        class=0x0c0330 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1ad6 subvendor=0x19da subdevice=0x2503

ppt3@pci0:2:0:3:        class=0x0c8000 rev=0xa1 hdr=0x00 vendor=0x10de
device=0x1ad7 subvendor=0x19da subdevice=0x2503


I presume that every line I want to comment on this file will be ignored.
WHY ?
-- 
Mario.