Hello,

Having just seen Jonathan Haslam (almost) modeling his fabulous "Fast Reboot" 
t-shirt at LOSUG last night, I thought I would give it a try in my 2008.11 
installation. And it worked great, and is a great new feature..

Then I did it a second time, and the VM panicked. I had kmdb loaded, so was 
able to get a stack backtrace, which contained the following (apols for absence 
of arguments to the routines; but where there are no arguments, I have inserted 
parentheses)).

kmdb_enter+0x9
debug_enter+0x29
panicsys+0x354
vpanic+0xc3
panic+0x12
die+0x93
trap+0x1422

[all of which you would kinda expect in a panic scenario]

Then in the backtrace:

0xfe00837c()
0x501d

Both of which look strange... Then:

pci_check_bios+0x2e()
pci_check+0x1e()
pci_cfgspace_init+0x31
mlsetup+0x42

Which suggests that the problem area is PCI. Another side-issue is that when I 
try to quit kmdb, I get "mkmdb: cannot modify read-only variable 'mdb_ks'", and 
the only way "forward" is to reset the VM. This is reproduceable.

Kmdb also reports that there is a "Bad kernel fault at addr=0x889cb9b3c", and 
that "pc=0x501d"

Repeating without kmdb loaded, I get "panic[cpu0]=fec1e360 BAD TRAP type=e" 
repeated, until finally "WARNING: Request for too much kernel memory (4096 
bytes), will hang forever", and the code "delay(1000000000)" in a "for(;;)" 
loop in vm_page.c sees to that ;-)

Finally, my VirtualBox is 2.0.6.

Anyone any ideas? Or anything I could try.....

Thanks and regards... Sean.
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