Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault viftual address = 0x40
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff001ccfa0
stack pointer = 0x20:0xffffffff00c6f070
frame pointer = 0x20:0xffffffff00c6f0a0
code segment = base 0x0, limit 0xffffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL=0
current process = 0 (swapper)
trap number = 12
panic: page fault
cpuid = 0
Uptime: 1s
Automatic reboot <skipped>
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The system is Dell Inspiron 1501, latest BIOS 2.6.3. FreeBSD was upgraded from working previously 7.2 with ACPI.
Disabling ACPI during the boot helps, and later I was able to isolate the problem to "ec" sub-device (debug.acpi.disabled="ec")
>How-To-Repeat:
Boot with FreeBSD 8.0 CD with ACPI enabled on Dell Inspiron 1501. Don't have another one to verify though.
>Fix:
Put into /boot/loader.conf:
debug.acpi.disabled="ec"
>Release-Note:
>Audit-Trail:
>Unformatted:
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