To be fair this is an old old machine and I was merely testing but here is what I see from the serial console : Loading kernel... /boot/kernel/kernel text=0xfe834 text=0xb1fc10 text=0x5feb24 data=0xb0 data=0x10e214+0x31f794 0x4+0xf02c0+0x4+0x188333| Loading configured modules... can't find '/etc/hostid' can't find '/boot/entropy' GDB: no debug ports present KDB: debugger backends: ddb KDB: current backend: ddb ---<<BOOT>>--- MP Configuration Table version 1.4 found at 0x49f160 Firmware Error (ACPI): A valid RSDP was not found (20220331/tbxfroot-369) APIC: Using the MPTable enumerator. Copyright (c) 1992-2022 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 14.0-CURRENT #0 main-n256174-c692ea40265: Fri Jun 17 07:59:39 UTC 2022 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/i386.i386/sys/GENERIC i386 FreeBSD clang version 14.0.5 (https://github.com/llvm/llvm-project.git llvmorg-14.0.5-0-gc12386ae247c) WARNING: WITNESS option enabled, expect reduced performance. VT(vga): resolution 640x480 Preloaded elf kernel "/boot/kernel/kernel" at 0x22cb000. Preloaded TSLOG data "TSLOG" at 0x22d3af4. Early TSC frequency 399019910Hz calibrated from 8254 PIT CPU: Pentium II/Pentium II Xeon/Celeron (399.02-MHz 686-class CPU) Origin="GenuineIntel" Id=0x652 Family=0x6 Model=0x5 Stepping=2 Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR> Instruction TLB: 4 KB pages, 4-way set associative, 32 entries Instruction TLB: 4 MB pages, fully associative, 2 entries Data TLB: 4 KB pages, 4-way set associative, 64 entries 2nd-level cache: 512 KB, 4-way set associative, 32 byte line size 1st-level instruction cache: 16 KB, 4-way set associative, 32 byte line size Data TLB: 4 MB Pages, 4-way set associative, 8 entries 1st-level data cache: 16 KB, 4-way set associative, 32 byte line size real memory = 805306368 (768 MB) Physical memory chunk(s): 0x0000000000001000 - 0x000000000009dfff, 643072 bytes (157 pages) 0x0000000000100000 - 0x00000000007fffff, 7340032 bytes (1792 pages) 0x0000000002500000 - 0x000000002f0e4fff, 750669824 bytes (183269 pages) avail memory = 756310016 (721 MB) MPTable: <SMP: Added CPU 1 (BSP) SMP: Added CPU 0 (AP) HP XU/XW > Event timer "LAPIC" quality 100 LAPIC: ipi_wait() us multiplier 9 (r 4000105 tsc 399019910) Package ID shift: 0 L2 cache ID shift: 0 L1 cache ID shift: 0 INTR: Adding local APIC 0 as a target FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs FreeBSD/SMP: 2 package(s) x 1 core(s) Package HW ID = 1 CPU0 (BSP): APIC ID: 1 Package HW ID = 0 CPU1 (AP): APIC ID: 0 Pentium Pro MTRR support enabled bios32: Found BIOS32 Service Directory header at 0x4f70b0 bios32: Entry = 0xfd7ac (4fd7ac) Rev = 0 Len = 1 pcibios: PCI BIOS entry at 0xfd720+0x291 pnpbios: Found PnP BIOS data at 0x4f7110 pnpbios: Entry = f0000:ada2 Rev = 1.0 Other BIOS signatures found: random: no preloaded entropy cache random: no platform bootloader entropy arc4random: WARNING: initial seeding bypassed the cryptographic random device because it was not yet seeded and the knob 'bypass_before_seeding' was enabled. VIMAGE (virtualized network stack) enabled hostuuid: using 00000000-0000-0000-0000-000000000000 ULE: setup cpu 0 ULE: setup cpu 1 ioapic0: Assuming intbase of 0 ioapic0: ver 0x11 maxredir 0x17 ioapic0: Routing external 8259A's -> intpin 0 ioapic0: Routing IRQ 0 -> intpin 2 lapic: Routing ExtINT -> LINT0 lapic: LINT0 trigger: edge lapic: LINT0 polarity: high lapic: Routing NMI -> LINT1 lapic: LINT1 trigger: edge lapic: LINT1 polarity: high ioapic0 <Version 1.1> irqs 0-23 cpu0 BSP: ID: 0x01000000 VER: 0x00040011 LDR: 0x00000000 DFR: 0xffffffff lint0: 0x00010700 lint1: 0x00000400 TPR: 0x00000000 SVR: 0x000001ff timer: 0x000100ef therm: 0x00000000 err: 0x000000f0 pmc: 0x00010400 CPU0: local APIC error 0x80 SMP: AP CPU #1 Launched! cpu1 AP: ID: 0x00000000 VER: 0x00040011 LDR: 0x00000000 DFR: 0xffffffff lint0: 0x00010700 lint1: 0x00000400 TPR: 0x00000000 SVR: 0x000001ff timer: 0x000100ef therm: 0x00000000 err: 0x000000f0 pmc: 0x00010400 TSC timecounter disables C2 and C3. CPU1: local APIC error 0x80 snd_unit_init() u=0x00ff8000 [512] d=0x00007c00 [32] c=0x000003ff [1024] feeder_register: snd_unit=-1 snd_maxautovchans=16 latency=2 feeder_rate_min=1 feeder_rate_max=2016000 feeder_rate_round=25 wlan: <802.11 Link Layer> random: entropy device external interface kbd: new array size 4 kbd1 at kbdmux0 crypto: <crypto core> mem: <memory> null: <full device, null device, zero device> io: <I/O> [ath_hal] loaded Firmware Error (ACPI): A valid RSDP was not found (20220331/tbxfroot-369) ACPI: Table initialisation failed: AE_NOT_FOUND ACPI: Try disabling either ACPI or apic support. vtvga0: <VT VGA driver> crypto: assign cryptosoft0 driver id 0, flags 0x6000000 aesni0: No AES or SHA support. pci_open(1): mode 1 addr port (0x0cf8) is 0x80003b90 pci_open(1a): mode1res=0x80000000 (0x80000000) pci_cfgcheck: device 0 [class=060000] [hdr=00] is there (id=71908086) pcibios: BIOS version 2.10 pcib0: <MPTable Host-PCI bridge> pcibus 0 panic: pci_get_bus failed for pcib0 on bus legacy0, error = 2 cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper(2,1d83720,2,e042a80,e044ed0,...) at db_trace_self_wrapper+0x28/frame 0x24f9b3c vpanic(154f803,24f9b78,24f9b78,24f9bbc,141582b,...) at vpanic+0xf4/frame 0x24f9b58 panic(154f803,146e415,e044ed0,e030c60,2,...) at panic+0x14/frame 0x24f9b6c mptable_pci_host_res_init(e042a80) at mptable_pci_host_res_init+0x2eb/frame 0x24f9bbc mptable_hostb_attach(e042a80) at mptable_hostb_attach+0xd/frame 0x24f9bcc device_attach(e042a80) at device_attach+0x301/frame 0x24f9bf4 device_probe_and_attach(e042a80) at device_probe_and_attach+0x5f/frame 0x24f9c0c bus_generic_attach(e042b00) at bus_generic_attach+0x16/frame 0x24f9c1c legacy_attach(e042b00) at legacy_attach+0xe6/frame 0x24f9c30 device_attach(e042b00) at device_attach+0x301/frame 0x24f9c58 device_probe_and_attach(e042b00) at device_probe_and_attach+0x5f/frame 0x24f9c70 bus_generic_attach(e042e00) at bus_generic_attach+0x16/frame 0x24f9c80 nexus_attach(e042e00) at nexus_attach+0x5c/frame 0x24f9c90 device_attach(e042e00) at device_attach+0x301/frame 0x24f9cb8 device_probe_and_attach(e042e00,7fffffff,e02ff80,e043000,24f9d00,...) at device_probe_and_attach+0x5f/frame 0x24f9cd0 bus_generic_new_pass(e043000) at bus_generic_new_pass+0xcb/frame 0x24f9ce8 bus_set_pass(7fffffff) at bus_set_pass+0x24/frame 0x24f9d00 root_bus_configure(24f9d38,f8c444,0,1b10280,0,...) at root_bus_configure+0xd/frame 0x24f9d0c configure(0) at configure+0x8/frame 0x24f9d14 mi_startup() at mi_startup+0x214/frame 0x24f9d38 btext() at btext+0x5f KDB: enter: panic [ thread pid 0 tid 100000 ] Stopped at kdb_enter+0x34: movl $0,kdb_why db> So this is a real genuine Intel Pentium II machine with dual sockets. I will try FreeBSD 13.1 and see what happens on the same hardware. Dennis Clarke
It seems that mptable_pci_host_res_init() should not use pci_get_bus(). At minimum, it should use pcib_get_bus (note 'b') but it looks that the most proper method would be legacy_get_picbus. The same is true for mptable_hostb_probe(). pcib_get_bus works there because PCIB_IVAR_BUS happens (or is designed) to have the same value as LEGACY_IVAR_PCIBUS.
I reverted ( or made the safe leap ) over to 13.1 RELEASE in order to just get the machine working. Which it is. However I can always swap around SCSI disks to check on this bug in the near future. The machine has an external old Sun Microsystems SCSI disk pack as storage. So that makes a swap around to CURRENT pretty trivial. Dennis Clarke
Andriy is correct, both places should be using legacy_get_pcibus().
Patch at https://reviews.freebsd.org/D35548
^Triage: Assign to committer resolving
A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=b076d8d54c2fd91a35aad6931d0bfa2aa0122036 commit b076d8d54c2fd91a35aad6931d0bfa2aa0122036 Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2022-06-23 17:49:09 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2022-06-23 17:49:09 +0000 mptable_hostb: Use legacy_get_pcibus() to fetch PCI bus number. The mptable_hostb driver is a child of legacy0 and has legacy bus ivars, not PCI or PCI bridge ivars. PR: 264819 Reported by: Dennis Clarke <dclarke@blastwave.org> Diagnosed by: avg Reviewed by: avg MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D35548 sys/x86/x86/mptable.c | 2 +- sys/x86/x86/mptable_pci.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
I will test this on the problem hardware but not until I see a snapshot released. That makes the process trivial to test. Otherwise a whole buildworld + buildkernel would be painful on an old i686 machine. Dennis
A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=516846b256483cbce82933e1cb9ba0cf7b5279ec commit 516846b256483cbce82933e1cb9ba0cf7b5279ec Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2022-06-23 17:49:09 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2022-07-13 16:21:10 +0000 mptable_hostb: Use legacy_get_pcibus() to fetch PCI bus number. The mptable_hostb driver is a child of legacy0 and has legacy bus ivars, not PCI or PCI bridge ivars. PR: 264819 Reported by: Dennis Clarke <dclarke@blastwave.org> Diagnosed by: avg Reviewed by: avg Differential Revision: https://reviews.freebsd.org/D35548 (cherry picked from commit b076d8d54c2fd91a35aad6931d0bfa2aa0122036) sys/x86/x86/mptable.c | 2 +- sys/x86/x86/mptable_pci.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
A commit in branch stable/12 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=ece27cdfb33cc5dc2420653d7f86bff4f5aa344a commit ece27cdfb33cc5dc2420653d7f86bff4f5aa344a Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2022-06-23 17:49:09 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2022-07-13 16:52:58 +0000 mptable_hostb: Use legacy_get_pcibus() to fetch PCI bus number. The mptable_hostb driver is a child of legacy0 and has legacy bus ivars, not PCI or PCI bridge ivars. PR: 264819 Reported by: Dennis Clarke <dclarke@blastwave.org> Diagnosed by: avg Reviewed by: avg Differential Revision: https://reviews.freebsd.org/D35548 (cherry picked from commit b076d8d54c2fd91a35aad6931d0bfa2aa0122036) sys/x86/x86/mptable.c | 2 +- sys/x86/x86/mptable_pci.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)