Panic @ orm_identify+0x308 (kernel probes) after r327103 -> r327140

David Wolfskill david at
Sun Dec 24 13:27:12 UTC 2017

Had this on the laptop; fotunately, also got it on the build machine (as
it's a lot easier to work with the serial console of the latter for
this -- and it runs a GENERIC kernel):

FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 12.0-CURRENT #51  r327140M/327142:1200054: Sun Dec 24 05:11:03 PST 2017
    root at amd64
FreeBSD clang version 5.0.1 (tags/RELEASE_501/final 320880) (based on LLVM 5.0.1)
WARNING: WITNESS option enabled, expect reduced performance.
Table 'FACP' at 0xde3c1b98
Table 'APIC' at 0xde3c1ca8
Table 'FPDT' at 0xde3c1d40
Table 'ASF!' at 0xde3c1d88
Table 'SLIC' at 0xde3c1e30
Table 'SSDT' at 0xde3c1fa8
Table 'SSDT' at 0xde3c24e8
Table 'MCFG' at 0xde3c2fc0
Table 'HPET' at 0xde3c3000
Table 'SSDT' at 0xde3c3038
Table 'SSDT' at 0xde3c33a8
Table 'MSDM' at 0xde3c6688
Table 'DMAR' at 0xde3c66e0
ACPI: No SRAT table found
PPIM 0: PA=0xa0000, VA=0xffffffff82410000, size=0x10000, mode=0
VT(vga): resolution 640x480
Preloaded elf kernel "/boot/kernel/kernel" at 0xffffffff82278000.
Preloaded boot_entropy_cache "/boot/entropy" at 0xffffffff822810d8.
Preloaded elf obj module "/boot/kernel/filemon.ko" at 0xffffffff82281130.
Calibrating TSC clock ... TSC clock: 3591758700 Hz
CPU: Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz (3591.76-MHz K8-class CPU)
  Origin="GenuineIntel"  Id=0x306c3  Family=0x6  Model=0x3c  Stepping=3
  AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
  AMD Features2=0x21<LAHF,ABM>
  XSAVE Features=0x1<XSAVEOPT>
  VT-x: Basic Features=0xda0400<SMM,INS/OUTS,TRUE>
        Pin-Based Controls=0x7f<ExtINT,NMI,VNMI,PreTmr>
        Exit Controls=0xda0400<PAT-LD,EFER-SV,PTMR-SV>
        Entry Controls=0xda0400
        EPT Features=0x6334141<XO,PW4,UC,WB,2M,1G,INVEPT,AD,single,all>
        VPID Features=0xf01<INVVPID,individual,single,all,single-globals>
  TSC: P-state invariant, performance statistics
Data TLB: 2 MByte or 4 MByte pages, 4-way set associative, 32 entries and a separate array with 1 GByte pages, 4-way set associative, 4 entries
Data TLB: 4 KB pages, 4-way set associative, 64 entries
Instruction TLB: 2M/4M pages, fully associative, 8 entries
Instruction TLB: 4KByte pages, 8-way set associative, 64 entries
64-Byte prefetching
Shared 2nd-Level TLB: 4 KByte/2MByte pages, 8-way associative, 1024 entries
L2 cache: 256 kbytes, 8-way associative, 64 bytes/line
real memory  = 34359738368 (32768 MB)
Physical memory chunk(s):
0x0000000000010000 - 0x0000000000099fff, 565248 bytes (138 pages)
0x0000000000100000 - 0x00000000001fffff, 1048576 bytes (256 pages)
0x00000000022c4000 - 0x00000000cd1d3fff, 3404791808 bytes (831248 pages)
0x00000000cd1db000 - 0x00000000cda2cfff, 8724480 bytes (2130 pages)
0x00000000cdcaa000 - 0x00000000de036fff, 272158720 bytes (66445 pages)
0x00000000de0c1000 - 0x00000000de2a4fff, 1982464 bytes (484 pages)
0x00000000defff000 - 0x00000000deffffff, 4096 bytes (1 pages)
0x0000000100000000 - 0x00000007eb4e2fff, 29717573632 bytes (7255267 pages)
avail memory = 33300434944 (31757 MB)
ACPI: Enabled 5 GPEs in block 00 to 3F
random: harvesting attach, 8 bytes (4 bits) from acpi0
random: harvesting attach, 8 bytes (4 bits) from apic0
acpi0: wakeup code va 0xfffffe009b189000 pa 0x99000
random: harvesting attach, 8 bytes (4 bits) from nexus0
ahc_isa_identify 0: ioport 0xc00 alloc failed
ahc_isa_identify 1: ioport 0x1c00 alloc failed
ahc_isa_identify 2: ioport 0x2c00 alloc failed
ahc_isa_identify 3: ioport 0x3c00 alloc failed
ahc_isa_identify 4: ioport 0x4c00 alloc failed
ahc_isa_identify 5: ioport 0x5c00 alloc failed
ahc_isa_identify 6: ioport 0x6c00 alloc failed
ahc_isa_identify 7: ioport 0x7c00 alloc failed
ahc_isa_identify 8: ioport 0x8c00 alloc failed
ahc_isa_identify 9: ioport 0x9c00 alloc failed
ahc_isa_identify 10: ioport 0xac00 alloc failed
ahc_isa_identify 11: ioport 0xbc00 alloc failed
ahc_isa_identify 12: ioport 0xcc00 alloc failed
ahc_isa_identify 13: ioport 0xdc00 alloc failed
ahc_isa_identify 14: ioport 0xec00 alloc failed
pcib0: allocated type 3 (0xb0000-0xb07ff) for rid 0 of orm0
pcib0: allocated type 3 (0xb0800-0xb0fff) for rid 0 of orm0
pcib0: allocated type 3 (0xe7000-0xe77ff) for rid 0 of orm0
pcib0: allocated type 3 (0xe7800-0xe7fff) for rid 0 of orm0

Fatal trap 9: general protection fault while in kernel mode
cpuid = 2; apic id = 02
instruction pointer     = 0x20:0xffffffff81066968
stack pointer           = 0x28:0xffffffff82286a90
frame pointer           = 0x28:0xffffffff82286ad0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 0 (swapper)
[ thread pid 0 tid 100000 ]
Stopped at      orm_identify+0x308:     movq    (%r14),%rax
db> bt
Tracing pid 0 tid 100000 td 0xffffffff81e94340
orm_identify() at orm_identify+0x308/frame 0xffffffff82286ad0
bus_generic_probe() at bus_generic_probe+0x74/frame 0xffffffff82286b00
isa_probe_children() at isa_probe_children+0x19/frame 0xffffffff82286b50
mi_startup() at mi_startup+0x9c/frame 0xffffffff82286b70
btext() at btext+0x2c

I can afford to leave this machine as-is for a while, and can poke
at it, given suitable clues as to where to poke & how hard. :-)


David H. Wolfskill				david at
If Trump is "taking names" re: the UN Jerusalem vote, he can add mine.

See for my public key.
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