Re: reboot broken on RPi4 on main [breaks at git: e6cf1a0826c9 - main - physmem: add ram0 pseudo-driver]

  I'm not exactly sure when it got fix (it doesn't always hang, just almost
always), but the last 2-3 reboots have succeeded without having to power cycle
the pi.

  aee2f11bf4b was Ok (~3/18), 896516e54a8 is where I figured I couldn't be
THAT lucky (~3/18) and maybe fixed as early as 6d33121337a (~3/15) or
626d1e4a82e (~3/13).  I didn't see anything specifically call it out.