Re: Boot fail as kvm guest

[Marc Balmer <mbalmer%NetBSD.org@localhost>]

Am 17.02.12 14:41, schrieb Manuel Bouyer:
> On Fri, Feb 17, 2012 at 02:12:35PM +0100, Marc Balmer wrote:
>> Am 17.02.12 14:06, schrieb Hubert Feyrer:
>>> On Fri, 17 Feb 2012, Kevin Bowling wrote:
>>>> fatal protection fault in supervisor mode
>>>> trap type 4 code 0 rip ffffffff80259023 cs 8 rflags 10246 cr2 0 cpl 8
>>>> rsp fffff
>>>> fff81032c18
>>>> kernel: protection fault trap, code=0
>>>> Stopped in pid 0.1 (system) at netbsd:rdmsr_locked+0xb: rdmsr
>>>
>>> I think NetBSD should add a stack trace on panics automatically...
>>
>> Can't that be achieved using ddb.commandonenter ?
>>
>> Or should a ddb.stacktrace sysctl variable be introduced for this?
> 
> No ddb.stacktrace please, ddb.commandonenter is fine for this.
> Maybe we should eventually create a bt_allcpu (the name can be discussed :)
> to get stack traces of all CPUs with a single command ?

on a side note, ddb.commandonenter can be quite nasty, thought about
entering multiple commands and set it to "bt ps".  That led to an
endless loop of a kind when I accidentally enter ddb... (no, don't try this)