% cat broken/kenv
COLUMNS="80"
LINES="25"
acpi.oem="BOCHS "
acpi.revision="1"
acpi.rsdp="0x000f5900"
acpi.rsdt="0x7ffe2088"
acpi_load="YES"
autoboot_delay="NO"
bootenv_autolist="YES"
bootfile="kernel"
comconsole_pcidev=""
comconsole_port="1016"
comconsole_speed="9600"
console="vidconsole"
currdev="cd0:"
efi_max_resolution="1x1"
hint.acpi.0.disabled="0"
hint.acpi.0.oem="BOCHS "
hint.acpi.0.revision="1"
hint.acpi.0.rsdp="0x000f5900"
hint.acpi.0.rsdt="0x7ffe2088"
hint.acpi_throttle.0.disabled="1"
hint.atkbd.0.at="atkbdc"
hint.atkbd.0.irq="1"
hint.atkbdc.0.at="isa"
hint.atkbdc.0.port="0x060"
hint.atrtc.0.at="isa"
hint.atrtc.0.irq="8"
hint.atrtc.0.port="0x70"
hint.attimer.0.at="isa"
hint.attimer.0.irq="0"
hint.attimer.0.port="0x40"
hint.fd.0.at="fdc0"
hint.fd.0.drive="0"
hint.fd.1.at="fdc0"
hint.fd.1.drive="1"
hint.fdc.0.at="isa"
hint.fdc.0.drq="2"
hint.fdc.0.irq="6"
hint.fdc.0.port="0x3F0"
hint.p4tcc.0.disabled="1"
hint.ppc.0.at="isa"
hint.ppc.0.irq="7"
hint.psm.0.at="atkbdc"
hint.psm.0.irq="12"
hint.sc.0.at="isa"
hint.sc.0.flags="0x100"
hint.uart.0.at="isa"
hint.uart.0.flags="0x10"
hint.uart.0.irq="4"
hint.uart.0.port="0x3F8"
hint.uart.1.at="isa"
hint.uart.1.irq="3"
hint.uart.1.port="0x2F8"
hw.ata.ata_dma="0"
hw.ata.atapi_dma="0"
interpret="OK"
kernel="kernel"
kernel_options=""
kernel_path="/boot/kernel"
kernelname="/boot/kernel/kernel"
kernels_autodetect="NO"
loaddev="cd0:"
loader_conf_dirs="/boot/loader.conf.d"
module_blacklist="drm drm2 radeonkms i915kms amdgpu"
module_path="/boot/kernel;/boot/modules;/boot/dtb;/boot/dtb/overlays"
nextboot_conf="/boot/nextboot.conf"
pcibios.config1="1"
pcibios.config2="0"
pcibios.major="2"
pcibios.maxbus="17"
pcibios.minor="0"
prompt="${interpret}"
screen.font="8x16"
screen.textmode="1"
script.lang="lua"
smbios.bios.vendor="Vultr"
smbios.chassis.maker="QEMU"
smbios.chassis.type="Other"
smbios.chassis.version="pc-q35-5.2"
smbios.memory.enabled="2097152"
smbios.socket.enabled="1"
smbios.socket.populated="1"
smbios.system.family="KVM"
smbios.system.maker="Vultr"
smbios.system.product="HFC"
smbios.system.serial="48839585"
smbios.system.uuid="85515512-0c21-4653-a57d-56ca994e2802"
smbios.system.version="pc-q35-5.2"
smbios.version="2.8"
teken.bg_color="0"
teken.fg_color="7"
twiddle_divisor="1"
vbe_max_resolution=""
verbose_loading="NO"
vfs.mountroot.timeout="10"
vfs.root.mountfrom="cd9660:/dev/iso9660/13_0_STABLE_AMD64_BO"
vfs.root.mountfrom.options="ro"
dev.ax.sph_enable="1"

% cat working/kenv
COLUMNS="80"
LINES="25"
acpi.oem="BOCHS "
acpi.revision="1"
acpi.rsdp="0x000f58f0"
acpi.rsdt="0x7ffe14b5"
acpi_load="YES"
bootenv_autolist="YES"
bootfile="kernel"
comconsole_pcidev=""
comconsole_port="1016"
comconsole_speed="9600"
console="vidconsole"
currdev="disk0p2:"
efi_max_resolution="1x1"
hint.acpi.0.disabled="0"
hint.acpi.0.oem="BOCHS "
hint.acpi.0.revision="1"
hint.acpi.0.rsdp="0x000f58f0"
hint.acpi.0.rsdt="0x7ffe14b5"
hint.acpi_throttle.0.disabled="1"
hint.atkbd.0.at="atkbdc"
hint.atkbd.0.irq="1"
hint.atkbdc.0.at="isa"
hint.atkbdc.0.port="0x060"
hint.atrtc.0.at="isa"
hint.atrtc.0.irq="8"
hint.atrtc.0.port="0x70"
hint.attimer.0.at="isa"
hint.attimer.0.irq="0"
hint.attimer.0.port="0x40"
hint.fd.0.at="fdc0"
hint.fd.0.drive="0"
hint.fd.1.at="fdc0"
hint.fd.1.drive="1"
hint.fdc.0.at="isa"
hint.fdc.0.drq="2"
hint.fdc.0.irq="6"
hint.fdc.0.port="0x3F0"
hint.p4tcc.0.disabled="1"
hint.ppc.0.at="isa"
hint.ppc.0.irq="7"
hint.psm.0.at="atkbdc"
hint.psm.0.irq="12"
hint.sc.0.at="isa"
hint.sc.0.flags="0x100"
hint.uart.0.at="isa"
hint.uart.0.flags="0x10"
hint.uart.0.irq="4"
hint.uart.0.port="0x3F8"
hint.uart.1.at="isa"
hint.uart.1.irq="3"
hint.uart.1.port="0x2F8"
kernel="kernel"
kernel_options=""
kernel_path="/boot/kernel"
kernelname="/boot/kernel/kernel"
kernels_autodetect="YES"
loaddev="disk0p2:"
loader_conf_dirs="/boot/loader.conf.d"
module_blacklist="drm drm2 radeonkms i915kms amdgpu"
module_path="/boot/kernel;/boot/modules;/boot/dtb;/boot/dtb/overlays"
nextboot_conf="/boot/nextboot.conf"
pcibios.config1="1"
pcibios.config2="0"
pcibios.major="2"
pcibios.maxbus="0"
pcibios.minor="0"
screen.font="8x16"
screen.textmode="1"
script.lang="lua"
smbios.bios.vendor="Vultr"
smbios.chassis.maker="QEMU"
smbios.chassis.type="Other"
smbios.chassis.version="pc-i440fx-5.2"
smbios.memory.enabled="2097152"
smbios.socket.enabled="1"
smbios.socket.populated="1"
smbios.system.family="KVM"
smbios.system.maker="Vultr"
smbios.system.product="HFC"
smbios.system.serial="48839706"
smbios.system.uuid="23c255c5-2791-4f1c-b089-fec374bce894"
smbios.system.version="pc-i440fx-5.2"
smbios.version="2.8"
teken.bg_color="0"
teken.fg_color="7"
twiddle_divisor="1"
vbe_max_resolution=""
verbose_loading="NO"
vfs.root.mountfrom="ufs:/dev/ufs/rootfs"
vfs.root.mountfrom.options="rw"
dev.ax.sph_enable="1"

% diff broken/kenv working/kenv
5,6c5,6
< acpi.rsdp="0x000f5900"
< acpi.rsdt="0x7ffe2088"
---
> acpi.rsdp="0x000f58f0"
> acpi.rsdt="0x7ffe14b5"
8d7
< autoboot_delay="NO"
15c14
< currdev="cd0:"
---
> currdev="disk0p2:"
20,21c19,20
< hint.acpi.0.rsdp="0x000f5900"
< hint.acpi.0.rsdt="0x7ffe2088"
---
> hint.acpi.0.rsdp="0x000f58f0"
> hint.acpi.0.rsdt="0x7ffe14b5"
55,57d53
< hw.ata.ata_dma="0"
< hw.ata.atapi_dma="0"
< interpret="OK"
62,63c58,59
< kernels_autodetect="NO"
< loaddev="cd0:"
---
> kernels_autodetect="YES"
> loaddev="disk0p2:"
71c67
< pcibios.maxbus="17"
---
> pcibios.maxbus="0"
73d68
< prompt="${interpret}"
80c75
< smbios.chassis.version="pc-q35-5.2"
---
> smbios.chassis.version="pc-i440fx-5.2"
87,89c82,84
< smbios.system.serial="48839585"
< smbios.system.uuid="85515512-0c21-4653-a57d-56ca994e2802"
< smbios.system.version="pc-q35-5.2"
---
> smbios.system.serial="48839706"
> smbios.system.uuid="23c255c5-2791-4f1c-b089-fec374bce894"
> smbios.system.version="pc-i440fx-5.2"
96,98c91,92
< vfs.mountroot.timeout="10"
< vfs.root.mountfrom="cd9660:/dev/iso9660/13_0_STABLE_AMD64_BO"
< vfs.root.mountfrom.options="ro"
---
> vfs.root.mountfrom="ufs:/dev/ufs/rootfs"
> vfs.root.mountfrom.options="rw"