Pull UML fixes from Richard Weinberger:
- Make sure to set a default console, otherwise ttynull is selected
- Revert initial ARCH_HAS_SET_MEMORY support, this needs more work
- Fix a regression due to ubd refactoring
- Various small fixes
* tag 'for-linus-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: time: fix initialization in time-travel mode
um: fix os_idle_sleep() to not hang
Revert "um: support some of ARCH_HAS_SET_MEMORY"
Revert "um: allocate a guard page to helper threads"
um: virtio: free vu_dev only with the contained struct device
um: kmsg_dumper: always dump when not tty console
um: stdio_console: Make preferred console
um: return error from ioremap()
um: ubd: fix command line handling of ubd