On Mon, Dec 21, 2020 at 11:39 PM David Gow <davidgow@xxxxxxxxxx> wrote: > > kunit_tool relies on the UML console outputting printk() output to the > tty in order to get results. Since the default console driver could > change, pass 'console=tty' to the kernel. > > This is triggered by a change[1] to use ttynull as a fallback console > driver which -- by chance or by design -- seems to have changed the > default console output on UML, breaking kunit_tool. While this may be > fixed, we should be less fragile to such changes in the default. > > [1]: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=757055ae8dedf5333af17b3b5b4b70ba9bc9da4e > > Signed-off-by: David Gow <davidgow@xxxxxxxxxx> > Fixes: 757055ae8ded ("init/console: Use ttynull as a fallback when there is no console") Acked-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx> Thanks for taking care of this!