glxgears (NO ERROR):
---- Xorg.0.log:
[  8026.519] (II) RADEON(0): radeon_dri2_create_buffer:308 width=300 height=300 pitch=1200 aligned_height=304 size=364800 htile_sup=22800
[  8026.519] (II) RADEON(0): radeon_dri2_create_buffer:313 new aligned_height=328
---- kern.log: empty
---- mesa log:
r600_db:925 : surf->aligned_height=300 rtex->pitch_in_bytes[level]=1536 rtex->size=460800 htile_offset=460800


gnome-shell (ERROR):
---- Xorg.0.log:
[  8167.072] (II) RADEON(0): radeon_dri2_create_buffer:308 width=3360 height=1050 pitch=13440 aligned_height=1056 size=14192640 htile_sup=887040
[  8167.072] (II) RADEON(0): radeon_dri2_create_buffer:313 new aligned_height=1128
---- kern.log:
[ 8167.076538] radeon 0000:01:00.0: htile buffer too small (3456x1048 (8x8) -> 14741568 have 14516224)
[ 8167.076552] radeon 0000:01:00.0: r600_packet3_check:1534 invalid cmd stream 529
[ 8167.076561] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
---- mesa log:
r600_db:925 : surf->aligned_height=1050 rtex->pitch_in_bytes[level]=13824 rtex->size=14515200 htile_offset=14515200