tree 3ff4ece1a7b4cf62e863ad23edf1f0a40d1148cd
parent fed4c72689805001108f86868e5856edb3d3808a
author Richard Weinberger <richard@nod.at> 1465761402 +0200
committer Richard Weinberger <richard@nod.at> 1470261646 +0200

um: Setup physical memory in setup_arch()

Currently UML sets up physical memory very early,
long before setup_arch() was called by the kernel main
function.
This can cause problems when code paths in UML's memory setup
code assume that the kernel is already running.
i.e. when kmemleak is enabled it will evaluate current()
in free_bootmem(). That early current() is undefined and
UML explodes.

Solve the problem by setting up physical memory in setup_arch(),
at this stage the kernel has materialized and basic infrastructure
such as current() works.

Signed-off-by: Richard Weinberger <richard@nod.at>