On Mon 2021-01-04 09:23:57, Shuah Khan wrote: > On 12/22/20 4:11 AM, Andy Shevchenko wrote: > > On Mon, Dec 21, 2020 at 11:39:00PM -0800, David Gow 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 > > > > Reported-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > Tested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > > > Thank you all. Now in linux-kselftest kunit-fixes branch. > > Will send this up for rc3. > > Sorry for the delay - have been away from the keyboard for a > bit. JFYI, I am not sure that this is the right solution. I am looking into it, see https://lore.kernel.org/linux-kselftest/X%2FSRA1P8t+ONZFKb@alley/ for more details. Best Regards, Petr