https://bugs.freedesktop.org/show_bug.cgi?id=94410
--- Comment #2 from Felix Hellmann privat@cirk2.de --- This still happens in current git (dd072cf4b1) with unreal editor 4.16.
Kernel 4.12.3-ARCH Rx 480 libdrm-2.4.82
Full log output from two runs. One with default binned2 malloc and one with ansimalloc: