qtlauncher crashes on apalis-imx6

[  100.153059] WARNING: CPU: 2 PID: 369 at /usr/src/kernel/mm/page_alloc.c:7393 free_contig_range+0x94/0x98
[  100.162617] 338 pages are still in use!
[  100.166485] Modules linked in: usb_f_fs usb_f_rndis u_ether libcomposite configfs ov5640_camera_mipi_int mxc_v4l2_capture ipu_bg_overlay_sdc ipu_still ipu_prp_enc ipu_csi_enc adv7280_tvin ipu_fg_overlay_sdc max9526_tvin v4l2_int_device galcore(O) atmel_mxt_ts
[  100.189748] CPU: 2 PID: 369 Comm: QSGRenderThread Tainted: G           O    4.9.87-2.8.3+g07d40f6ffcbb #1
[  100.199317] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[  100.205847] Backtrace: 
[  100.208329] [<8010c224>] (dump_backtrace) from [<8010c4fc>] (show_stack+0x18/0x1c)
[  100.215912]  r7:00000009 r6:60060013 r5:00000000 r4:80d50388
[  100.221587] [<8010c4e4>] (show_stack) from [<80457724>] (dump_stack+0x90/0xa4)
[  100.228821] [<80457694>] (dump_stack) from [<80127b14>] (__warn+0xf0/0x108)
[  100.235789]  r7:00000009 r6:80a2d998 r5:00000000 r4:e2cd9da8
[  100.241458] [<80127a24>] (__warn) from [<80127b6c>] (warn_slowpath_fmt+0x40/0x48)
[  100.248948]  r9:e2cd8000 r8:80ddfd00 r7:80d06584 r6:0008528a r5:00000152 r4:80a2e128
[  100.256703] [<80127b30>] (warn_slowpath_fmt) from [<801fb03c>] (free_contig_range+0x94/0x98)
[  100.265145]  r3:00000152 r2:80a2e128
[  100.268723]  r4:0008528a
[  100.271272] [<801fafa8>] (free_contig_range) from [<8023ddc0>] (cma_release+0x7c/0x124)
[  100.279283]  r9:e2cd8000 r8:5e6cece4 r7:0000018a r6:e6699000 r5:00085100 r4:80de0a44
[  100.287039] [<8023dd44>] (cma_release) from [<80576cdc>] (dma_release_from_contiguous+0x38/0x3c)
[  100.295832]  r9:e2cd8000 r8:5e6cece4 r7:80115a0c r6:00000000 r5:0018a000 r4:e6699000
[  100.303586] [<80576ca4>] (dma_release_from_contiguous) from [<8011501c>] (cma_allocator_free+0x58/0x7c)
[  100.312989] [<80114fc4>] (cma_allocator_free) from [<801159f8>] (__arm_dma_free.constprop.2+0x124/0x138)
[  100.322473]  r7:80115a0c r6:85100000 r5:f0d4b000 r4:e2dd3000
[  100.328142] [<801158d4>] (__arm_dma_free.constprop.2) from [<80115a28>] (arm_dma_free+0x1c/0x24)
[  100.336930]  r5:f0d4b000 r4:0018a000
[  100.340518] [<80115a0c>] (arm_dma_free) from [<806e7cbc>] (vpu_free_dma_buffer+0x94/0xb4)
[  100.348703] [<806e7c28>] (vpu_free_dma_buffer) from [<806e9178>] (vpu_ioctl+0x858/0xaf0)
[  100.356798]  r7:00000017 r6:e2f43780 r5:00000051 r4:5e6cece4
[  100.362469] [<806e8920>] (vpu_ioctl) from [<80253e94>] (do_vfs_ioctl+0xa8/0x8e8)
[  100.369871]  r8:5e6cece4 r7:00000017 r6:e2f43780 r5:e2710f80 r4:5e6cece4
[  100.376579] [<80253dec>] (do_vfs_ioctl) from [<80254710>] (SyS_ioctl+0x3c/0x60)
[  100.383896]  r10:00000000 r9:e2cd8000 r8:5e6cece4 r7:00005601 r6:00000017 r5:e2f43780
[  100.391728]  r4:e2f43781
[  100.394274] [<802546d4>] (SyS_ioctl) from [<80107d20>] (ret_fast_syscall+0x0/0x48)
[  100.401850]  r9:e2cd8000 r8:80107ee4 r7:00000036 r6:00005601 r5:5c0bf398 r4:5e6cece4
[  100.409655] ---[ end trace 1164deb531c8a93e ]---
[  100.414565] ------------[ cut here ]------------
[  100.419264] WARNING: CPU: 2 PID: 369 at /usr/src/kernel/mm/page_alloc.c:7393 free_contig_range+0x94/0x98
[  100.428774] 338 pages are still in use!
[  100.432618] Modules linked in: usb_f_fs usb_f_rndis u_ether libcomposite configfs ov5640_camera_mipi_int mxc_v4l2_capture ipu_bg_overlay_sdc ipu_still ipu_prp_enc ipu_csi_enc adv7280_tvin ipu_fg_overlay_sdc max9526_tvin v4l2_int_device galcore(O) atmel_mxt_ts