NetBSD 9 kernel complaints about new BIOS

To: port-amd64%netbsd.org@localhost
Subject: NetBSD 9 kernel complaints about new BIOS
From: Greg Troxel <gdt%lexort.com@localhost>
Date: Wed, 11 Jan 2023 09:18:25 -0500
On a PC Engine apu2 box that runs NetBSD 9, I updated the BIOS from
4.14.0.2 to 4.16.0.1.  The machine boots fine, but there are complaints
in dmesg.   I've attached a before/after diff with the same kernel.
Much of this is just a new coreboot date string but there is:

  +ACPI Error: \_SB.P000: This object type [Device] never contains data and cannot be evaluated (20190405/nseval-222)
  +acpicpu0: failed to obtain CPU object

  -acpicpu0: T0: I/O, lat   1 us, pow     0 mW, 100 %
  -acpicpu0: T1: I/O, lat   1 us, pow     0 mW,  88 %
  -acpicpu0: T2: I/O, lat   1 us, pow     0 mW,  76 %
  -acpicpu0: T3: I/O, lat   1 us, pow     0 mW,  64 %
  -acpicpu0: T4: I/O, lat   1 us, pow     0 mW,  52 %
  -acpicpu0: T5: I/O, lat   1 us, pow     0 mW,  40 %
  -acpicpu0: T6: I/O, lat   1 us, pow     0 mW,  28 %
  -acpicpu0: T7: I/O, lat   1 us, pow     0 mW,  16 %

and I don't know if that's worrying, a bug in 9, a bug in the bios, or
something else.

(If I boot 10 there are no complaints but also no T lines printed.  A
lot of other changes which look like improvements in 10: more info, com0
attaches via acpi0 instead of isa0, amdccp.)

My real question: is it ok to run 9 on a box with the new bios (that is
the router that other people rely on for videoconferencing)?   So far I
have upgraded the box that is cold spare and for testing.

--- DMESG.20230110.apu2-4.14.0.4.9.txt	2023-01-10 14:58:51.302248186 -0500
+++ DMESG.20230110.apu2-4.16.0.1.9.txt	2023-01-10 16:10:54.361375619 -0500
@@ -17,19 +17,19 @@
 PC Engines apu2 (1.0)
 mainbus0 (root)
 ACPI: RSDP 0x00000000000F3830 000024 (v02 COREv4)
-ACPI: XSDT 0x00000000CFE950E0 000074 (v01 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: FACP 0x00000000CFE96D90 000114 (v06 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: DSDT 0x00000000CFE95280 001B09 (v02 COREv4 COREBOOT 00010001 INTL 20180531)
+ACPI: XSDT 0x00000000CFE950E0 000074 (v01 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: FACP 0x00000000CFE96E10 000114 (v06 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: DSDT 0x00000000CFE95280 001B87 (v02 COREv4 COREBOOT 00010001 INTL 20200925)
 ACPI: FACS 0x00000000CFE95240 000040
-ACPI: SSDT 0x00000000CFE96EB0 0001F8 (v02 COREv4 COREBOOT 0000002A CORE 20180531)
-ACPI: MCFG 0x00000000CFE970B0 00003C (v01 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: TPM2 0x00000000CFE970F0 00004C (v04 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: APIC 0x00000000CFE97140 00007E (v03 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: HEST 0x00000000CFE971C0 0001D0 (v01 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: SSDT 0x00000000CFE97390 0048A6 (v02 AMD    AGESA    00000002 MSFT 04000000)
-ACPI: SSDT 0x00000000CFE9BC40 0007C8 (v01 AMD    AGESA    00000001 AMD  00000001)
-ACPI: DRTM 0x00000000CFE9C410 00007C (v01 COREv4 COREBOOT 00000000 CORE 20180531)
-ACPI: HPET 0x00000000CFE9C490 000038 (v01 COREv4 COREBOOT 00000000 CORE 20180531)
+ACPI: SSDT 0x00000000CFE96F30 0001F8 (v02 COREv4 COREBOOT 0000002A CORE 20200925)
+ACPI: MCFG 0x00000000CFE97130 00003C (v01 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: TPM2 0x00000000CFE97170 00004C (v04 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: APIC 0x00000000CFE971C0 00007E (v03 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: HEST 0x00000000CFE97240 0001D0 (v01 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: SSDT 0x00000000CFE97410 0048A6 (v02 AMD    AGESA    00000002 MSFT 04000000)
+ACPI: SSDT 0x00000000CFE9BCC0 0007C8 (v01 AMD    AGESA    00000001 AMD  00000001)
+ACPI: DRTM 0x00000000CFE9C490 00007C (v01 COREv4 COREBOOT 00000000 CORE 20200925)
+ACPI: HPET 0x00000000CFE9C510 000038 (v01 COREv4 COREBOOT 00000000 CORE 20200925)
 ACPI: 4 ACPI AML tables successfully acquired and loaded
 ioapic0 at mainbus0 apid 4: pa 0xfec00000, version 0x21, 24 pins
 ioapic1 at mainbus0 apid 5: pa 0xfec20000, version 0x21, 32 pins
@@ -46,7 +46,7 @@
 cpu3: AMD GX-412TC SOC                               , id 0x730f01
 cpu3: package 0, core 3, smt 0
 acpi0 at mainbus0: Intel ACPICA 20190405
-acpi0: X/RSDT: OemId <COREv4,COREBOOT,00000000>, AslId <CORE,20180531>
+acpi0: X/RSDT: OemId <COREv4,COREBOOT,00000000>, AslId <CORE,20200925>
 acpi0: MCFG: segment 0, bus 0-63, address 0x00000000f8000000
 acpi0: SCI interrupting at int 9
 acpi0: fixed power button present
@@ -178,24 +178,24 @@
 com0: console
 com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
 acpicpu0 at cpu0: ACPI CPU
+ACPI Error: \_SB.P000: This object type [Device] never contains data and cannot be evaluated (20190405/nseval-222)
+acpicpu0: failed to obtain CPU object
 acpicpu0: C1: HLT, lat   0 us, pow     0 mW
 acpicpu0: C2: I/O, lat 400 us, pow     0 mW
 acpicpu0: P0: FFH, lat   4 us, pow   924 mW, 1000 MHz
 acpicpu0: P1: FFH, lat   4 us, pow   760 mW,  800 MHz
 acpicpu0: P2: FFH, lat   4 us, pow   571 mW,  600 MHz
-acpicpu0: T0: I/O, lat   1 us, pow     0 mW, 100 %
-acpicpu0: T1: I/O, lat   1 us, pow     0 mW,  88 %
-acpicpu0: T2: I/O, lat   1 us, pow     0 mW,  76 %
-acpicpu0: T3: I/O, lat   1 us, pow     0 mW,  64 %
-acpicpu0: T4: I/O, lat   1 us, pow     0 mW,  52 %
-acpicpu0: T5: I/O, lat   1 us, pow     0 mW,  40 %
-acpicpu0: T6: I/O, lat   1 us, pow     0 mW,  28 %
-acpicpu0: T7: I/O, lat   1 us, pow     0 mW,  16 %
 acpicpu1 at cpu1: ACPI CPU
+ACPI Error: \_SB.P001: This object type [Device] never contains data and cannot be evaluated (20190405/nseval-222)
+acpicpu1: failed to obtain CPU object
 acpicpu2 at cpu2: ACPI CPU
+ACPI Error: \_SB.P002: This object type [Device] never contains data and cannot be evaluated (20190405/nseval-222)
+acpicpu2: failed to obtain CPU object
 acpicpu3 at cpu3: ACPI CPU
+ACPI Error: \_SB.P003: This object type [Device] never contains data and cannot be evaluated (20190405/nseval-222)
+acpicpu3: failed to obtain CPU object
 timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
-timecounter: Timecounter "TSC" frequency 998174610 Hz quality 3000
+timecounter: Timecounter "TSC" frequency 998161180 Hz quality 3000
 uhub0 at usb0: NetBSD (0000) xHCI root hub (0000), class 9/0, rev 3.00/1.00, addr 0
 uhub0: 2 ports with 2 removable, self powered
 uhub1 at usb1: NetBSD (0000) xHCI root hub (0000), class 9/0, rev 2.00/1.00, addr 0
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