[ 7596.881260] ------------[ cut here ]------------
[ 7596.886100] WARNING: CPU: 0 PID: 60 at mm/page_alloc.c:6520 free_contig_range+0xa0/0xb8()
[ 7596.896005] 64 pages are still in use!
[ 7596.899810] Modules linked in: ipv6 cryptodev(O) arc4 wl18xx wlcore mac80211 cfg80211 musb_dsps musb_hdrc udc_core usbcore pm33xx omapdrm_pvr(O) wlcore_sdio omap_rng evdev joydev rng_core c_can_platform c_can can_dev musb_am335x rtc_omap omap_wdt cpufreq_voltdm thermal_sys hwmon
[ 7596.925491] CPU: 0 PID: 60 Comm: kworker/u2:2 Tainted: G        W  O    4.1.6tec+ #1
[ 7596.933864] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 7596.940024] Workqueue: tilcdc flip_worker
[ 7596.944347] Backtrace:
[ 7596.946846] [<c0012b10>] (dump_backtrace) from [<c0012d30>] (show_stack+0x18/0x1c)
[ 7596.956773]  r7:c079a514 r6:00001978 r5:00000009 r4:00000000
[ 7596.962658] [<c0012d18>] (show_stack) from [<c061ef04>] (dump_stack+0x20/0x28)
[ 7596.970283] [<c061eee4>] (dump_stack) from [<c0037d6c>] (warn_slowpath_common+0x7c/0xb4)
[ 7596.978882] [<c0037cf0>] (warn_slowpath_common) from [<c0037ddc>] (warn_slowpath_fmt+0x38/0x40)
[ 7596.987821]  r8:c0886580 r7:00000040 r6:c08e15c4 r5:0009d940 r4:c079ac00
[ 7596.995073] [<c0037da8>] (warn_slowpath_fmt) from [<c00c5d54>] (free_contig_range+0xa0/0xb8)
[ 7597.004099]  r3:00000040 r2:c079ac00
[ 7597.007713]  r4:00000000
[ 7597.010287] [<c00c5cb4>] (free_contig_range) from [<c0106380>] (cma_release+0x94/0xbc)
[ 7597.018630]  r9:dfb6d000 r8:dd900000 r7:dd0fcc10 r6:00000001 r5:c08e23fc r4:0009d900
[ 7597.026651] [<c01062ec>] (cma_release) from [<c03fc520>] (dma_release_from_contiguous+0x34/0x3c)
[ 7597.036084]  r5:00428400 r4:00040000
[ 7597.039730] [<c03fc4ec>] (dma_release_from_contiguous) from [<c001af14>] (__arm_dma_free+0x14c/0x1f8)
[ 7597.049369] [<c001adc8>] (__arm_dma_free) from [<c001b010>] (arm_dma_free+0x24/0x2c)
[ 7597.057295]  r10:dd5cc394 r9:dd5cc300 r8:dd1afc34 r7:dd5cc388 r6:00000001 r5:c001afec
[ 7597.065441]  r4:dc1aae80
[ 7597.068198] [<c001afec>] (arm_dma_free) from [<c03df694>] (drm_gem_cma_free_object+0x5c/0x98)
[ 7597.077168] [<c03df638>] (drm_gem_cma_free_object) from [<c03c34b0>] (drm_gem_object_free+0x30/0x38)
[ 7597.086532]  r5:ffffffff r4:dc1aae80
[ 7597.090167] [<c03c3480>] (drm_gem_object_free) from [<c03bebe4>] (drm_fb_cma_destroy+0xa8/0xb4)
[ 7597.099688] [<c03beb3c>] (drm_fb_cma_destroy) from [<c03cda44>] (drm_framebuffer_free+0x54/0x58)
[ 7597.108560]  r10:dd280758 r9:dd280770 r8:dd3ee000 r7:dd5cc300 r6:dd1afc00 r5:dd1afd5c
[ 7597.116847]  r4:dd5cc304 r3:c03beb3c
[ 7597.120475] [<c03cd9f0>] (drm_framebuffer_free) from [<c03cda94>] (drm_framebuffer_unreference+0x4c/0x80)
[ 7597.130627]  r7:dd280750 r6:dd3efeb8 r5:dd5cc300 r4:dd5cc300
[ 7597.136415] [<c03cda48>] (drm_framebuffer_unreference) from [<c03eb13c>] (unref_worker+0x28/0x34)
[ 7597.145757]  r4:dd1afcf8
[ 7597.148485] [<c03eb114>] (unref_worker) from [<c03dccf4>] (flip_worker+0xbc/0xe0)
[ 7597.156302]  r5:d69b6240 r4:dd3efeb8
[ 7597.160256] [<c03dcc38>] (flip_worker) from [<c004c43c>] (process_one_work+0x12c/0x374)
[ 7597.168612]  r10:dd3e0000 r9:00000000 r8:dd003a00 r7:dd15ef00 r6:00000000 r5:dd280758
[ 7597.176669]  r4:dd3e0000
[ 7597.179235] [<c004c310>] (process_one_work) from [<c004c6e4>] (worker_thread+0x60/0x5cc)
[ 7597.187893]  r10:dd3e0000 r9:00000000 r8:dd003a00 r7:dd003a10 r6:00000088 r5:dd3e0018
[ 7597.195879]  r4:dd003a00
[ 7597.198453] [<c004c684>] (worker_thread) from [<c0051a9c>] (kthread+0xd4/0xf0)
[ 7597.206145]  r10:00000000 r9:00000000 r8:00000000 r7:c004c684 r6:dd3e0000 r5:dd374b00
[ 7597.214091]  r4:00000000
[ 7597.216940] [<c00519c8>] (kthread) from [<c000f928>] (ret_from_fork+0x14/0x2c)
[ 7597.224556]  r7:00000000 r6:00000000 r5:c00519c8 r4:dd374b00
[ 7597.230282] ---[ end trace dc2fa584945a92d3 ]---