Re: "vfprintf %s NULL" during bulk build

On 2019/06/05 23:08, Markus Lude wrote:
> On Wed, Jun 05, 2019 at 09:06:48PM +0100, Stuart Henderson wrote:
> > While reviewing syslog to look for realpath problems I noticed these,
> > in case anyone cares:
> >
> > GUPnPAV-1.0: vfprintf %s NULL in "URL: %s, ID: %s."
> > desktoptojson: vfprintf %s NULL in "Warning: %s (%s:%u, %s) "
> > mono: vfprintf %s NULL in "%s %2d %02d:%02d:%02d%.*s %d%s"
> > valac: vfprintf %s NULL in " value="%s""
> > xpcshell: vfprintf %s NULL in "%s: Resetting desktop app info dirs from %s to %s"
> > gst-plugin-scanner: vfprintf %s NULL in "%s%s"
> >
> > (The last one was quite special because it was followed by "last message
> > repeated 44329 times", though looking at older logs that seems unusual).
>
> in messages log:
> first vfprintf entry starting at may 4th:
> firefox: vfprintf %s NULL in "%s: Resetting desktop app info dirs from %s to %s"
> a few times per day, all with firefox
>
> The first entry on may 4th was while updating packages, among them
> firefox. I still have a log of package update if anyone is interested.

That one is from a debug print in libgio-2,

glib-2.60.3/gio/gdesktopappinfo.c:
1484 /* If the XDG dirs configuration has changed (expected only during tests),
1485 * clear and reload the state. */
1486 if (g_strcmp0 (desktop_file_dirs_config_dir, user_config_dir) != 0)
1487 {
1488 g_debug ("%s: Resetting desktop app info dirs from %s to %s",
1489 G_STRFUNC, desktop_file_dirs_config_dir, user_config_dir);

I'm not convinced syslogging this is doing much good ..