DragonFly kernel List (threaded) for 2004-06
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Re: trap 12 during boot
:The trace does not help here:
:db> trace
You can experiment a bit by tracing higher addresses starting at the
stack pointer. So, for example:
:fault virtual address = 0x8758b53
:fault code = supervisor read, page not present
:instruction pointer = 0x8:0xc02f0a50
:stack pointer = 0x10:0xc048eac8
:frame pointer = 0x10:0xc048eacc
:..
Try:
trace 0xc048eacc
trace 0xc048ead0
trace 0xc048ead4
trace 0xc048ead8
trace 0xc048eadc
trace 0xc048eae0
...
until you get a good trace (or the machine locks up from the debugger
trapping into itself too many times).
If that doesn't work boot a backup kernel and generate a nm output on
the kernel binary that panics so we can figure out which procedure it
crashed in.
-Matt
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