https://bugs.freedesktop.org/show_bug.cgi?id=111077
--- Comment #2 from roland@rptd.ch roland@rptd.ch --- I don't know what other information can help so I collected information about the state that worked (before the update) and the state that does not work anymore (after the update):
before update (working state): media-libs/mesa-18.2.8 - x11-drivers/xf86-video-amdgpu-18.1.0 - x11-libs/libdrm-2.4.96 - sys-devel/llvm-6.0.1 - sys-devel/llvmgold-6 - sys-devel/llvm-common-6.0.1
after update (memory consumption bug present): - media-libs/mesa-18.3.6 (I also tested media-libs/mesa-19.0.6 and media-libs/mesa-19.1.1 with same result) - x11-drivers/xf86-video-amdgpu-19.0.1 - x11-libs/libdrm-2.4.97 - sys-devel/llvm-7.1.0 - sys-devel/llvmgold-7 - sys-devel/llvm-common-7.1.0
Is there anything else that can help?