kern/70931: panic: page fault at end of boot on Athlon 64 / Asus K8V

Karl L. Swartz karl at
Wed Aug 25 00:40:29 PDT 2004

>Number:         70931
>Category:       kern
>Synopsis:       panic: page fault at end of boot on Athlon 64 / Asus K8V
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Aug 25 07:40:27 GMT 2004
>Originator:     Karl L. Swartz
>Release:        4.10-RELEASE
I'm trying to install FreeBSD 4.10 in a new machine which has an Asus           K8V motherboard with an AMD Athlon 64 2800+ CPU and 1GB of PC3200 ECC           memory.  Storage is a pair of Seagate ST-3200822A 200GB UATA-100 disks          in a mirror group on a 3Ware Escalade 7006-2 RAID controller.

Booting either from the FreeBSD Mall CD or floppies I get

   Mounting root from ufs:/dev/md0c                                                             
   /stand/sysinstall running as init on vty0                                   
   panic: page fault

Attempts with 4.9 and 5.2.1 both fail in the same way at approximately
the same location in the boot sequence.

I then temporarily installed an older motherboard and CPU and installed
FreeBSD 4.10-RELEASE.  After switching back to the K8V / Athlon 64 and
booting from the mirror set I again get a panic at approximately the
same location, albeit with more information:

   Mounting root from ufs:/dev/twed0s1a
   Fatal trap 12: page fault whle in kernel mode
   fault virtual address  = 0x4832870
   fault code             = supervisor write, page not present
   instruction pointer    = 0x8:0xc03ac086
   stack pointer          = 0x10:0xc043bdf0
   frame pointer          = 0x10:0xc043bdf8
   code segment           = base 0x0, limit 0xfffff, type 0x1b
                          = DPL 0, pres 1, def32 1, gran 1
   processor eflags       = interrupt enabled, resume, IOPL = 0
   current process        = idle
   interrupt mask         = net tty bio cam
   trap number            = 12
   panic: page fault
   syncing disks... 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
   giving up on 1 buffers
   Uptime: 14s
   twe0: Cannot delete unit, error = 16

A reset resulted in another failed boot with the only significant
difference being the fault virtual address, 0x45f27e0 the second time.
The other trace information was identical.

attempt to boot
none known


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