On 13-Apr-2002 Makoto Matsushita wrote:
> Following are observed with 5-current kernel as of Apr/13/2002.
> Fatal trap 12: page fault while in kernel mode
> fault virtual address = 0x4
> fault code            = supervisor read, page not present
> instruction pointer   = 0x8:0xc0189b4a
> stack pointer         = 0x10:0xc03f5180
> frame pointer         = 0x10:0xc03f5180
> 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               = 0 (swapper)
> trap number           = 12
> panic: page fault
> Loading kernel is OK, it boots fine if my 'aue' ethernet is not
> plugged.  When I plug aue to the PC, kernel panic with messages above.
> Also, kernel panics after usb0, uhub0 is attached (same reason).
> Does anybody have aue see this?, or I'm alone?

Can you get a backtrace in ddb?  It looks like a null pointer dereference, and
knowing where it happened would help.  Finding the file and line of the
instruction pointer using addr2line on kernel.debug would be helpful as well.


John Baldwin <[EMAIL PROTECTED]>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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