This probably applies to all releases, but for now I'm concentrating on
stable/7.
We have beta Dell r720 (12g) gear in the office and I suspect a broken
EFI wrapped BIOS thing here, but freebsd definitely panics on startup.
OK boot -v
KDB: debugger backends: ddb
KDB: current backend: ddb
SMAP type=01 base=0000000000000000 len=00000000000a0000
SMAP type=01 base=0000000000100000 len=00000000cd200000
SMAP type=02 base=00000000cd300000 len=000000000002c000
SMAP type=03 base=00000000cd32c000 len=000000000003f000
SMAP type=02 base=00000000cd36b000 len=0000000002c95000
SMAP type=02 base=00000000e0000000 len=0000000010000000
SMAP type=02 base=00000000fe000000 len=0000000002000000
SMAP type=01 base=0000000100000000 len=0000000f30000000
Physical memory use set to 2097152K
Copyright (c) 1992-2011 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 7.4-YAHOO-20111021 #0 ybsd_7@307778: Thu Dec 15 23:31:18 UTC 2011
seanbru@x85.klab.corp.yahoo.com:/home/src/sys/i386/compile/NETBOOT i386
Preloaded elf kernel "/boot/kernel" at 0xa92c9000.
Preloaded mfs_root "/boot/build.dsk" at 0xa92c917c.
Calibrating clock(s) ... i8254 clock: 1193157 Hz
CLK_USE_I8254_CALIBRATION not specified - using default frequency
Timecounter "i8254" frequency 1193182 Hz quality 0
Calibrating TSC clock ... TSC clock: 2700021228 Hz
CPU: Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz (2700.02-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x206d6 Family = 6 Model = 2d
Stepping = 6
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x17bee3ff<SSE3,<b1>,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,<b17>,DCA,SSE4.1,SSE4.2,x2APIC,POPCNT,<b24>,<b25>,XSAVE,<b28>>
AMD Features=0x2c100000<NX,Page1GB,RDTSCP,LM>
AMD Features2=0x1<LAHF>
TSC: P-state invariant
Cores per package: 16
Logical CPUs per core: 2
Data TLB: 4 KB pages, 4-way set associative, 64 entries
L2 cache: 256 kbytes, 8-way associative, 64 bytes/line
real memory = 2147483648 (2048 MB)
Physical memory chunk(s):
0x0000000000001000 - 0x000000000009efff, 647168 bytes (158 pages)
0x0000000000100000 - 0x00000000001fffff, 1048576 bytes (256 pages)
0x000000000960a000 - 0x000000007d995fff, 1949876224 bytes (476044 pages)
avail memory = 1942470656 (1852 MB)
Table 'FACP' at 0xcd35119c
Table 'APIC' at 0xcd350478
APIC: Found table at 0xcd350478
MP Configuration Table version 1.4 found at 0xa00f0000
APIC: Using the MADT enumerator.
MADT: Found CPU APIC ID 0 ACPI ID 1: enabled
SMP: Added CPU 0 (AP)
MADT: Found CPU APIC ID 32 ACPI ID 2: enabled
SMP: Added CPU 32 (AP)
MADT: Found CPU APIC ID 2 ACPI ID 3: enabled
SMP: Added CPU 2 (AP)
MADT: Found CPU APIC ID 34 ACPI ID 4: enabled
SMP: Added CPU 34 (AP)
MADT: Found CPU APIC ID 4 ACPI ID 5: enabled
SMP: Added CPU 4 (AP)
MADT: Found CPU APIC ID 36 ACPI ID 6: enabled
SMP: Added CPU 36 (AP)
MADT: Found CPU APIC ID 6 ACPI ID 7: enabled
SMP: Added CPU 6 (AP)
MADT: Found CPU APIC ID 38 ACPI ID 8: enabled
SMP: Added CPU 38 (AP)
MADT: Found CPU APIC ID 8 ACPI ID 9: enabled
SMP: Added CPU 8 (AP)
MADT: Found CPU APIC ID 40 ACPI ID 10: enabled
SMP: Added CPU 40 (AP)
MADT: Found CPU APIC ID 10 ACPI ID 11: enabled
SMP: Added CPU 10 (AP)
MADT: Found CPU APIC ID 42 ACPI ID 12: enabled
SMP: Added CPU 42 (AP)
MADT: Found CPU APIC ID 12 ACPI ID 13: enabled
SMP: Added CPU 12 (AP)
MADT: Found CPU APIC ID 44 ACPI ID 14: enabled
SMP: Added CPU 44 (AP)
MADT: Found CPU APIC ID 14 ACPI ID 15: enabled
SMP: Added CPU 14 (AP)
MADT: Found CPU APIC ID 46 ACPI ID 16: enabled
SMP: Added CPU 46 (AP)
MADT: Found CPU APIC ID 1 ACPI ID 17: enabled
SMP: Added CPU 1 (AP)
MADT: Found CPU APIC ID 33 ACPI ID 18: enabled
SMP: Added CPU 33 (AP)
MADT: Found CPU APIC ID 3 ACPI ID 19: enabled
SMP: Added CPU 3 (AP)
MADT: Found CPU APIC ID 35 ACPI ID 20: enabled
SMP: Added CPU 35 (AP)
MADT: Found CPU APIC ID 5 ACPI ID 21: enabled
SMP: Added CPU 5 (AP)
MADT: Found CPU APIC ID 37 ACPI ID 22: enabled
SMP: Added CPU 37 (AP)
MADT: Found CPU APIC ID 7 ACPI ID 23: enabled
SMP: Added CPU 7 (AP)
MADT: Found CPU APIC ID 39 ACPI ID 24: enabled
SMP: Added CPU 39 (AP)
MADT: Found CPU APIC ID 9 ACPI ID 25: enabled
SMP: Added CPU 9 (AP)
MADT: Found CPU APIC ID 41 ACPI ID 26: enabled
SMP: Added CPU 41 (AP)
MADT: Found CPU APIC ID 11 ACPI ID 27: enabled
SMP: Added CPU 11 (AP)
MADT: Found CPU APIC ID 43 ACPI ID 28: enabled
SMP: Added CPU 43 (AP)
MADT: Found CPU APIC ID 13 ACPI ID 29: enabled
SMP: Added CPU 13 (AP)
MADT: Found CPU APIC ID 45 ACPI ID 30: enabled
SMP: Added CPU 45 (AP)
MADT: Found CPU APIC ID 15 ACPI ID 31: enabled
SMP: Added CPU 15 (AP)
MADT: Found CPU APIC ID 47 ACPI ID 32: enabled
SMP: Added CPU 47 (AP)
ACPI APIC Table: <DELL PE_SC3 >
INTR: Adding local APIC 2 as a target
INTR: Adding local APIC 4 as a target
INTR: Adding local APIC 6 as a target
INTR: Adding local APIC 8 as a target
INTR: Adding local APIC 10 as a target
INTR: Adding local APIC 12 as a target
INTR: Adding local APIC 14 as a target
FreeBSD/SMP: Multiprocessor System Detected: 16 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP/HT): APIC ID: 1
cpu2 (AP): APIC ID: 2
cpu3 (AP/HT): APIC ID: 3
cpu4 (AP): APIC ID: 4
cpu5 (AP/HT): APIC ID: 5
cpu6 (AP): APIC ID: 6
cpu7 (AP/HT): APIC ID: 7
cpu8 (AP): APIC ID: 8
cpu9 (AP/HT): APIC ID: 9
cpu10 (AP): APIC ID: 10
cpu11 (AP/HT): APIC ID: 11
cpu12 (AP): APIC ID: 12
cpu13 (AP/HT): APIC ID: 13
cpu14 (AP): APIC ID: 14
cpu15 (AP/HT): APIC ID: 15
cpu (AP): APIC ID: 32 (disabled)
cpu (AP/HT): APIC ID: 33 (disabled)
cpu (AP): APIC ID: 34 (disabled)
cpu (AP/HT): APIC ID: 35 (disabled)
cpu (AP): APIC ID: 36 (disabled)
cpu (AP/HT): APIC ID: 37 (disabled)
cpu (AP): APIC ID: 38 (disabled)
cpu (AP/HT): APIC ID: 39 (disabled)
cpu (AP): APIC ID: 40 (disabled)
cpu (AP/HT): APIC ID: 41 (disabled)
cpu (AP): APIC ID: 42 (disabled)
cpu (AP/HT): APIC ID: 43 (disabled)
cpu (AP): APIC ID: 44 (disabled)
cpu (AP/HT): APIC ID: 45 (disabled)
cpu (AP): APIC ID: 46 (disabled)
cpu (AP/HT): APIC ID: 47 (disabled)
APIC: CPU 0 has ACPI ID 1
APIC: CPU 1 has ACPI ID 17
APIC: CPU 2 has ACPI ID 3
APIC: CPU 3 has ACPI ID 19
APIC: CPU 4 has ACPI ID 5
APIC: CPU 5 has ACPI ID 21
APIC: CPU 6 has ACPI ID 7
APIC: CPU 7 has ACPI ID 23
APIC: CPU 8 has ACPI ID 9
APIC: CPU 9 has ACPI ID 25
APIC: CPU 10 has ACPI ID 11
APIC: CPU 11 has ACPI ID 27
APIC: CPU 12 has ACPI ID 13
APIC: CPU 13 has ACPI ID 29
APIC: CPU 14 has ACPI ID 15
APIC: CPU 15 has ACPI ID 31
lapic0: CMCI unmasked
bios32: Found BIOS32 Service Directory header at 0xa00f1600
bios32: Entry = 0xf1630 (a00f1630) Rev = 0 Len = 1
kernel trap 12 with interrupts disabled
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x20
fault code = supervisor write, page not present
instruction pointer = 0x20:0xa0755c7f
stack pointer = 0x28:0xa9605d04
frame pointer = 0x28:0x20
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
current process = 0 ()
trap number = 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
db_trace_self_wrapper(a07f0188,a9605ba4,a05284c7,a080fd7f,0,...) at
db_trace_self_wrapper+0x26
kdb_backtrace(a080fd7f,0,a07b8367,a9605bb0,0,...) at kdb_backtrace+0x29
panic(a07b8367,a08110b4,a08fab44,1,1,...) at panic+0x117
trap_fatal(a0558ede,a0810fb6,a0559340,a9605c08,a,...) at trap_fatal+0x323
trap_pfault(a0810fb6,c,0,0,a08fa920,...) at trap_pfault+0x260
trap(a9605cc4) at trap+0x443
calltrap() at calltrap+0x6
--- trap 0xc, eip = 0xa0755c7f, esp = 0xa9605d04, ebp = 0x20 ---
bios32() at bios32+0x37
kernel trap 12 with interrupts disabled