Comment 42 for bug 1723350

After setting try_inotify to false, I see that the message that an inotify was set up does not show up anymore, but no message that polling is used instead is shown in the logs. If I understand the code correctly, that's just right - a message will only be shown if try_inotify is true and it actually fails.

The polling, though, appears to be pretty useless when checking the code. It checks whether "mtime" was changed, on "/etc/resolv.conf". That seems to rarely change for the symlink, but only for the symlink target, so actual resolv-file changes are not noticed...

I think your observation concerning inotify is expected, since inotify works with on inode numbers, IIUC.