> I confirm that on another test system with an AMD GPU I do not observe the > deleted mappings.
With the more recent Xorg/mesa version now in sid the deleted objects have a different name: # grep i915 /proc/$(pidof Xorg)/maps 7f4c27930000-7f4c27935000 rw-s 00000000 00:16 1011645 /i915 (deleted) 7f4c27935000-7f4c2793a000 rw-s 00000000 00:16 1003904 /i915 (deleted) 7f4c2793a000-7f4c2793e000 rw-s 00000000 00:16 1018009 /i915 (deleted) 7f4c2793e000-7f4c2794e000 rw-s 00000000 00:16 1003894 /i915 (deleted) 7f4c2794e000-7f4c27953000 rw-s 00000000 00:16 1003372 /i915 (deleted) 7f4c27953000-7f4c27958000 rw-s 00000000 00:16 1016242 /i915 (deleted) 7f4c27958000-7f4c2795c000 rw-s 00000000 00:16 1017939 /i915 (deleted) 7f4c2795c000-7f4c2796c000 rw-s 00000000 00:16 1003866 /i915 (deleted) 7f4c2796c000-7f4c27971000 rw-s 00000000 00:16 1016240 /i915 (deleted) 7f4c27b86000-7f4c27b8a000 rw-s 00000000 00:16 1017996 /i915 (deleted) 7f4c27b8a000-7f4c27b8f000 rw-s 00000000 00:16 1016238 /i915 (deleted) 7f4c27b8f000-7f4c27b93000 rw-s 00000000 00:16 1017505 /i915 (deleted) 7f4c27b93000-7f4c27c13000 rw-s 00000000 00:16 972018 /i915 (deleted) 7f4c2d468000-7f4c2d46c000 rw-s 00000000 00:16 1016411 /i915 (deleted) 7f4c2d46c000-7f4c2d471000 rw-s 00000000 00:16 972003 /i915 (deleted) 7f4c2d59f000-7f4c2d5a7000 rw-s 00000000 00:16 972019 /i915 (deleted) 7f4c2d5e9000-7f4c2d5ed000 rw-s 00000000 00:16 1018025 /i915 (deleted) It makes it obvious that the problem is specific to Intel GPUs. -- Laurent.