Re: [Qemu-devel] [PATCH v2] Add chardev-send-break monitor command

[Stefan Fritsch <sf@sfritsch.de>]

On Wed, 19 Jul 2017, Thomas Huth wrote:
> On 11.06.2017 09:48, Stefan Fritsch wrote:
> > Sending a break on a serial console can be useful for debugging the
> > guest. But not all chardev backends support sending breaks (only telnet
> > and mux do). The chardev-send-break command allows to send a break even
> > if using other backends.
> > 
> > Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
> > Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> > ---
> > v2: added tests and Acked-by line
> [...]
> > diff --git a/tests/test-hmp.c b/tests/test-hmp.c
> > index 99e35ec15a..6dfa0c36e2 100644
> > --- a/tests/test-hmp.c
> > +++ b/tests/test-hmp.c
> > @@ -22,6 +22,7 @@ static int verbose;
> >  static const char *hmp_cmds[] = {
> >      "boot_set ndc",
> >      "chardev-add null,id=testchardev1",
> > +    "chardev-send-break testchardev2",
> >      "chardev-remove testchardev1",
> >      "commit all",
> >      "cpu-add 1",
> 
> Did you use "testchardev2" here on purpose, or should that have been a
> "testchardev1" instead? "testchardev2" is not a valid identifier in the
> HMP test, so this might not exercise the code path that you might have
> intended?

You are right, this should have been "testchardev1". Actually, one could 
do both, which would then exercise two different code paths.

Cheers,
Stefan