Date: Mon, 16 Dec 2013 17:03:54 -0800 From: Neel Natu <neelnatu@gmail.com> To: Michael Berman <michael.berman@tidalscale.com> Cc: "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org> Subject: Re: break to debugger in bhyve Message-ID: <CAFgRE9G6eofjPhx-2tNcabj9H83uO7A57bF7zoKiXH6igYJ1qQ@mail.gmail.com> In-Reply-To: <03322001-03C7-491F-B97D-64EA2E89BF6C@tidalscale.com> References: <CED388F2.1AA90%michael.berman@tidalscale.com> <52AE52DD.6020500@freebsd.org> <03322001-03C7-491F-B97D-64EA2E89BF6C@tidalscale.com>
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Hi Michael,
On Sun, Dec 15, 2013 at 9:00 PM, Michael Berman
<michael.berman@tidalscale.com> wrote:
>
> Unfortunately, this does not seem to work with the bhyve /dev/console dev=
ice.
>
Works fine for me once I compile with the ALT_BREAK_TO_DEBUGGER config opti=
on.
root@b2:~ # sysctl -a kern.conftxt | grep ALT_BREAK_TO_DEBUGGER
options ALT_BREAK_TO_DEBUGGER
root@b2:~ #
root@b2:~ # KDB: enter: Break to debugger
[ thread pid 11 tid 100003 ]
Stopped at kdb_alt_break_internal+0x17f: movq $0,kdb_why
db>
best
Neel
> Sent from my iPhone
>
>> On Dec 15, 2013, at 5:10 PM, "Julian Elischer" <julian@freebsd.org> wrot=
e:
>>
>>> On 12/16/13, 8:27 AM, Michael Berman wrote:
>>> I=92ve tried the various kernel and sysctl options, and it may be the w=
ay I am starting bhyve but I can=92t seem to get a the FreeBSD guest to ent=
er the kernel debugger with a hotkey.
>> it depends of course on which 'console' you are using,, for serial cons=
ole with /dev/nmdm you can use the ALT_BREAK_TO_DEBUGGER
>> option so that {enter| {~} {^B} will drop you into the debugger.
>> When I was doing this last I had the console on the first serial port an=
d the debugger on the second.
>> (that's why I wrote the nmdm node.)
>>>
>>> Michael
>>>
>>> _______________________________________________
>>> freebsd-virtualization@freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization
>>> To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@fr=
eebsd.org"
>>
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