pmap panic

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

Updating an amd64 laptop from Wednesday's to today Mar 15 13:47 source, I
get:

#0  0xffffffff80222a45 in cpu_reboot (howto=howto@entry=260, 
    bootstr=bootstr@entry=0x0) at ../../../../arch/amd64/amd64/machdep.c:720
#1  0xffffffff806371fa in kern_reboot (howto=howto@entry=260, 
    bootstr=bootstr@entry=0x0) at ../../../../kern/kern_reboot.c:73
#2  0xffffffff806691ef in vpanic (fmt=fmt@entry=0xffffffff80b325a8 "trap", 
    ap=ap@entry=0xffffb0814d473808) at ../../../../kern/subr_prf.c:336
#3  0xffffffff806692b3 in panic (fmt=fmt@entry=0xffffffff80b325a8 "trap")
    at ../../../../kern/subr_prf.c:255
#4  0xffffffff8022484d in trap (frame=0xffffb0814d473950)
    at ../../../../arch/amd64/amd64/trap.c:326
#5  0xffffffff8021db75 in alltraps ()
#6  0xffffffff802402fb in pmap_lookup_pv (ptp=0xffffb08000815580, 
    old_pp=old_pp@entry=0x0, va=va@entry=140187359342592, pmap=<optimized out>)
    at ../../../../arch/x86/x86/pmap.c:2010
#7  0xffffffff80243e48 in pmap_enter_ma (pmap=0xffff8e88998883c0, 
    va=va@entry=140187359342592, ma=ma@entry=2147483648, 
    pa=pa@entry=2147483648, prot=<optimized out>, flags=547, 
    domid=domid@entry=0) at ../../../../arch/x86/x86/pmap.c:4671
#8  0xffffffff8024436a in pmap_enter_default (pmap=<optimized out>, 
    va=va@entry=140187359342592, pa=pa@entry=2147483648, prot=<optimized out>, 
    flags=<optimized out>) at ../../../../arch/x86/x86/pmap.c:4539
#9  0xffffffff805f4907 in udv_fault (ufi=0xffffb0814d473c98, 
    vaddr=<optimized out>, pps=0xffffb0814d473d50, npages=<optimized out>, 
    centeridx=0, access_type=2, flags=66) at ../../../../uvm/uvm_device.c:429
#10 0xffffffff805f5df9 in uvm_fault_internal (
    orig_map=orig_map@entry=0xffff8e889a67f1c0, 
    vaddr=vaddr@entry=140187359342592, access_type=access_type@entry=2, 
    fault_flag=fault_flag@entry=0) at ../../../../uvm/uvm_fault.c:878
#11 0xffffffff80224326 in trap (frame=0xffffb0814d473f00)
    at ../../../../arch/amd64/amd64/trap.c:520
#12 0xffffffff8021db75 in alltraps ()

(custom kernel without DIAGNOSTIC nor DEBUG)

11 March fine...


Cheers,

Patrick