Ubuntu
qemu package

  1. Bug #1769053
  2. Comment #15

Comment 15 for bug 1769053

Revision history for this message
Daniel Berrange (berrange) wrote : Re: Cannot start a guest with more than 1TB of RAM

Hmm, if we know that QEMU guests will crash & burn when > 1 TB mem, when host-phys-bits/phys-bits are unset, then perhaps libvirt should do the right thing by default here. eg we can't use host-phys-bits=true due to migration compat issues, but if we see > 1TB mem, libvirt could reasonably set phys-bits=NNN for some suitable value of NNN. We should expose this in the XML config for the CPU explicitly too.