My FreeBSD system (amd64, SATA, root on ZFS) has suddenly started
refusing to boot up. It crashes out with a page fault just after the ZFS
warning that I "only" have 4GB of RAM.
The following is a transcription of what I see:
ZFS file system version 13
ZFS storage pool version 13
Timecounters tick every 1.000msec
Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address = 0x4
fault code = supervisor write data, page not present
instruction pointer = 0x20:0xf...810c522a
stack pointer = 0x28:0xf...81128af0
frame pointer = 0x28:0xf...81128b10
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interupt enabled, resume, IOPL = 0
current process = 0 (swapper)
trap number = 12
panic: page fault
cupid = 0
uptime : 1s
Cannot dump, Device not defined or unavailable
Automatic reboot in 15 seconds
The ellipses in addresses represents continued f's. These addresses seem
to be the same each time. I have tried using the "Without ACPI" boot
option to no avail.
Originally I had a problem in that using a USB keyboard meant I was
unable to press a key to halt the reboot timer but a USB to PS/2 adapter
solved that.
This problem has suspiciously started happening after I had trouble
performing the big "gettext" upgrade to the ports tree but I don't see
how changes to the ports tree can affect the base system which is
presumably where I still am this early in the boot process. However, for
completeness, the "portmaster -w -r gettext" command kept failing half
way through over the "xz" archiver. In the end I gave up and went with a
"portmaster -a" expecting some minor problems which could be fixed with
manual recompilation of effected ports.
While some web searching didn't turn up an answer to my problem it did
show that a memory fault is often suspected in these situations. I used
an "Ultimate Boot" disc to test the memory and it tested okay.
Have I hosed my system? And help gratefully received.
--
(\/)atthew
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