Thanks Stuart.
> Try "call cpu_reset".
That made the machine reboot cleanly. Afterwards, dmesg and
dmesg.boot had captured both the 6.3 boot and the 6.3 reboot, but the
ddb session in between was missing. Is there a ddb command that
flushes the session log to the message buffer?
> Or take photos and please transcribe the most
> important bits - at least the panic / crash string and function names
> from 'trace' - it's a lot quicker to figure out who needs to see it
> if those are available in plaintext in the email.
(==) Using system config directory "/usr/X11R6/share/X11/xorg.conf.d"
uvm_fault(0xd0c10110, 0xd44fa000, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at _rb_min+0x12: movl 0(%edx),%esi
ddb{0}> trace
_rb_min(d09c33a8,d1127004) at _rb_min+0x12
uvm_pmr_get1page(1,0,f5ea0798,0,0,0) at uvm_pmr_get1page+0x105
uvm_pmr_getpages(1,0,0,1,0,1,2,f5ea0798) at uvm_pmr_getpages+0x1a3
uvm_pagealloc(d610d630,4000,0,0) at uvm_pagealloc+0x155
uvn_get(d610d630,4000,0,f5ea0854,f5ea085c,0,4,0) at uvn_get+0xbc
uvm_fault(d6513310,fa97000,0,4) at uvm_fault+0xaf6
trap() at trap+0x602
--- trap(number -2107169536) ---
end of kernel
0x14:
ddb{0}>
Rodney