Re: [Qemu-devel] [PATCH v4 04/11] tests: Use consistent names and sizes for migration

[Juan Quintela <quintela@redhat.com>]

"Dr. David Alan Gilbert" <dgilbert@redhat.com> wrote:
> * Peter Xu (peterx@redhat.com) wrote:
>> On Wed, Jan 10, 2018 at 09:43:48AM +0100, Juan Quintela wrote:
>> > Peter Xu <peterx@redhat.com> wrote:
>> > > On Fri, Jan 05, 2018 at 10:52:39PM +0100, Juan Quintela wrote:
>> > >> Signed-off-by: Juan Quintela <quintela@redhat.com>
>> > >> ---
>> > >>  tests/migration-test.c | 12 ++++++------
>> > >>  1 file changed, 6 insertions(+), 6 deletions(-)
>> > >> 
>> > >> diff --git a/tests/migration-test.c b/tests/migration-test.c
>> > >> index d81f22118b..f469235d0b 100644
>> > >> --- a/tests/migration-test.c
>> > >> +++ b/tests/migration-test.c
>> > >> @@ -440,13 +440,13 @@ static void test_migrate_start(QTestState **from, QTestState **to,
>> > >>  
>> > >>      if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
>> > >>          init_bootfile_x86(bootpath);
>> > >> -        cmd_src = g_strdup_printf("-machine accel=%s -m 150M"
>> > >> -                                  " -name pcsource,debug-threads=on"
>> > >> +        cmd_src = g_strdup_printf("-machine accel=%s -m 256M"
>> > >> +                                  " -name source,debug-threads=on"
>> > >
>> > > A pure question: when will the name matter?
>> > 
>> > It don't matter, but ARM didn't want to use the pcname, and decided for
>> > yet a different command line.  I would like to have the same command
>> > line for all architectures.  At least the less gratuitous differences.
>> > 
>> > As you can guess, name don't matter at all., but telling ARNM people to
>> > be consistent with things that are not consistent .... O:-)
>> 
>> Ah, fine. :)
>> 
>> This test only support x86 and ppc for now, right?
>> 
>> (Btw, AFAIK debug-threads=on is only useful if any of us wants to
>>  glance at thread names.  In other words, would it be even simpler to
>>  just remove that "-name" line? :-)
>
> It makes debugging hangs/crashes easier sometimes, so keep it.

Agreed.  I think that this should be default on qemu O:-)

Later, Juan.