Re: [PATCH] tests/migration: Print some debug on bad status

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 11/8/19 11:43 AM, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> 
> We're seeing occasional asserts in 'wait_for_migraiton_fail', that
> I can't reliably reproduce, and where the cores don't have any useful
> state.  Print the 'status' out, so we can see which unexpected state
> we're ending up in.

Back to the good remote printf() debugging :)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> ---
>   tests/migration-test.c | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/migration-test.c b/tests/migration-test.c
> index 59f291c654..ac780dffda 100644
> --- a/tests/migration-test.c
> +++ b/tests/migration-test.c
> @@ -899,8 +899,13 @@ static void wait_for_migration_fail(QTestState *from, bool allow_active)
>   
>       do {
>           status = migrate_query_status(from);
> -        g_assert(!strcmp(status, "setup") || !strcmp(status, "failed") ||
> -                 (allow_active && !strcmp(status, "active")));
> +        bool result = !strcmp(status, "setup") || !strcmp(status, "failed") ||
> +                 (allow_active && !strcmp(status, "active"));
> +        if (!result) {
> +            fprintf(stderr, "%s: unexpected status status=%s allow_active=%d\n",
> +                    __func__, status, allow_active);
> +        }
> +        g_assert(result);
>           failed = !strcmp(status, "failed");
>           g_free(status);
>       } while (!failed);
>