I'm trying to disable inteldrm from loading on my headless firewall,
because it slows down my system, but I can't make the change stick
after another reboot.

After upgrading to 7.2 I noticed a higher than usual load average on
my openbsd firewall. A system process called drmwq seems to be
responsible for this if I'm understanding systat pigs correctly.
Seeing that this is a part of the inteldrm, I've disabled inteldrm in
the kernel and rebooted and noticed that my system seems back to
normal levels. Unfortunately after a reboot this morning, inteldrm is
back. This box is a headless box and I don't know why drmwq is doing
whatever it is doing, but I seem to be fine with it disabled. I
realize I shouldn't disable things if I don't know what I'm doing, but
I don't know what else I can do to with this drmwq process. How can I
keep inteldrm disabled after reboots?

I'm running current (Nov 10 snapshot)

I've disabled intel drm this way:
# config -ef /bsd
ukc> disable inteldrm
ukc> quit
# sha256 -h /var/db/kernel.SHA256 /bsd
# reboot

The device I'm using: https://protectli.com/product/fw4b/

Here is my dmesg

OpenBSD 7.2-current (GENERIC.MP) #827: Thu Nov 10 13:46:36 MST 2022
    dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4224679936 (4028MB)
avail mem = 4079226880 (3890MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0x7cd0b020 (14 entries)
bios0: vendor coreboot version "v4.12.0.7" date 09/28/2021
bios0: Protectli FW4B
acpi0 at bios0: ACPI 6.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT MCFG APIC
acpi0: wakeup devices XHCI(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz, 2240.41 MHz, 06-4c-04
cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu0: 24KB 64b/line 6-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 79MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz, 2240.96 MHz, 06-4c-04
cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu1: 24KB 64b/line 6-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz, 2241.21 MHz, 06-4c-04
cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu2: 24KB 64b/line 6-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Celeron(R) CPU J3160 @ 1.60GHz, 2241.36 MHz, 06-4c-04
cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,AES,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,MD_CLEAR,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu3: 24KB 64b/line 6-way D-cache, 32KB 64b/line 8-way I-cache, 1MB
64b/line 16-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 115 pins, remapped
acpiprt0 at acpi0: bus 0 (PCI0)
acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001
"INT33BD" at acpi0 not configured
acpicmos0 at acpi0
com0 at acpi0 COM1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
com0: console
chvgpio0 at acpi0 GPSW uid 1 addr 0xfed80000/0x8000 irq 49, 56 pins
chvgpio1 at acpi0 GPNC uid 2 addr 0xfed88000/0x8000 irq 48, 59 pins
chvgpio2 at acpi0 GPEC uid 3 addr 0xfed90000/0x8000 irq 50, 24 pins
chvgpio3 at acpi0 GPSE uid 4 addr 0xfed98000/0x8000 irq 91, 55 pins
"BOOT0000" at acpi0 not configured
acpicpu0 at acpi0: C3(1@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(1@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(1@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(1@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
cpu0: using VERW MDS workaround
cpu0: Enhanced SpeedStep 2240 MHz: speeds: 1601, 1600, 1520, 1440,
1360, 1280, 1200, 1120, 1040, 960, 880, 800, 720, 640, 560, 480 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Braswell Host" rev 0x35
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics" rev 0x35
drm0 at inteldrm0
inteldrm0: msi, CHERRYVIEW, gen 8
ahci0 at pci0 dev 19 function 0 "Intel Braswell AHCI" rev 0x35: msi, AHCI 1.3.1
ahci0: port 0: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, BIWIN SSD, QHY2> naa.0000000000000000
sd0: 15272MB, 512 bytes/sector, 31277232 sectors, thin
xhci0 at pci0 dev 20 function 0 "Intel Braswell xHCI" rev 0x35: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel Braswell HD Audio" rev 0x35: msi
azalia0: codecs: Realtek ALC662, Intel/0x2883, using Realtek ALC662
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel Braswell PCIE" rev 0x35: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I210" rev 0x03: msi, address
ppb1 at pci0 dev 28 function 1 "Intel Braswell PCIE" rev 0x35: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel I210" rev 0x03: msi, address
ppb2 at pci0 dev 28 function 2 "Intel Braswell PCIE" rev 0x35: msi
pci3 at ppb2 bus 3
em2 at pci3 dev 0 function 0 "Intel I210" rev 0x03: msi, address 2
ppb3 at pci0 dev 28 function 3 "Intel Braswell PCIE" rev 0x35: msi
pci4 at ppb3 bus 4
em3 at pci4 dev 0 function 0 "Intel I210" rev 0x03: msi, address
pcib0 at pci0 dev 31 function 0 "Intel Braswell PCU LPC" rev 0x35
ichiic0 at pci0 dev 31 function 3 "Intel Braswell SMBus" rev 0x35: apic 2 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 4GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
vga0 at isa0 port 0x3b0/48 iomem 0xa0000/131072
wsdisplay at vga0 not configured
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT (using slow L1TF mitigation)
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (d3d81fe166194904.a) swap on sd0b dump on sd0b
inteldrm0: 1024x768, 32bpp
wsdisplay0 at inteldrm0 mux 1
wsdisplay0: screen 0-5 added (std, vt100 emulation)

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