The sab driver sometimes gets out of sync with the hardware.  This can cause the serial console to hang.
The sab driver sometimes gets out of sync with the hardware.  This can
cause the serial console to hang.

ok jason@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars