Comment # 6 on bug 94410 from Timothee Besset

Not likely to be a radeon bug, but here is a possible solution for UE4 4.16:

17:18 <@rcl> if 4.16, remove the linker script
17:18 <@rcl> and try again
17:19 <@rcl> drivers aren't siloed from our new/delete and are probably
allocating memory through UE, a user program

(see LinuxToolChain.cs)

If someone can try that and report, that would help.