[REGRESSION][BISECTED] Severe flickering with an R9 290

Submitted by Markus Ebner @seijikun

Assigned to Default DRI bug account

Link to original bug (#100726)

Description

As of the commit:
d8d1721cfb3162abbda078d67a928792d6552b84 : A series of fixup patches meant to fix the usage of DMA on stack, plus one warning fixup

My R9 290 produces heavy flickering artifacts in 1 of 3 or 4 cases when starting Linux.
I am using the amdgpu kernel module, and have not tested this with radeon.
When the bug occurs, the system is completely unusable.

Since the occurence of this bug is not really deterministic, bisecting it was not that easy. I hope I didn't make any mistake.