Hi, When I quit from my QT5 application on am335x-evm running distro from arago-fido branch, I get following back trace:
[ 61.645940] WARNING: CPU: 0 PID: 1152 at /home/nws/yocto-fido-dev/oe-layersetup/build/arago-tmp-external-linaro-toolchain/work-shared/am335x-evm/kernel-source/mm/page_alloc.c:6523 free_contig_range+0xa0/0xb8() [ 61.666185] 375 pages are still in use! [ 61.670076] Modules linked in: ipv6 usb_f_ecm g_ether usb_f_rndis u_ether libcomposite musb_dsps musb_hdrc udc_core usbcore gpio_keys snd_soc_evm pm33xx omapdrm_pvr(O) omap_aes_driver omap_sham evdev joydev lm75 snd_soc_tlv320aic3x ti_am335x_adc omap_rng kfifo_buf rng_core industrialio musb_am335x rtc_omap omap_wdt matrix_keypad matrix_keymap [ 61.701652] CPU: 0 PID: 1152 Comm: QSGRenderThread Tainted: G O 4.1.17-g6c8d9c4682 #1 [ 61.711300] Hardware name: Generic AM33XX (Flattened Device Tree) [ 61.718176] Backtrace: [ 61.720694] [<c0012b18>] (dump_backtrace) from [<c0012d38>] (show_stack+0x18/0x1c) [ 61.728774] r7:c0803bb0 r6:0000197b r5:00000009 r4:00000000 [ 61.734524] [<c0012d20>] (show_stack) from [<c067b95c>] (dump_stack+0x20/0x28) [ 61.742131] [<c067b93c>] (dump_stack) from [<c0035d14>] (warn_slowpath_common+0x7c/0xb4) [ 61.750312] [<c0035c98>] (warn_slowpath_common) from [<c0035d84>] (warn_slowpath_fmt+0x38/0x40) [ 61.759341] r8:c0904580 r7:00000177 r6:c095d58c r5:000bec77 r4:c080438c [ 61.766201] [<c0035d50>] (warn_slowpath_fmt) from [<c00c1048>] (free_contig_range+0xa0/0xb8) [ 61.774677] r3:00000177 r2:c080438c [ 61.778612] r4:00000000 [ 61.781185] [<c00c0fa8>] (free_contig_range) from [<c0101614>] (cma_release+0x94/0xbc) [ 61.789483] r9:eeef9000 r8:f07a9000 r7:ee0fc610 r6:00000001 r5:c095e3c4 r4:000beb00 [ 61.797368] [<c0101580>] (cma_release) from [<c03fdc8c>] (dma_release_from_contiguous+0x34/0x3c) [ 61.806449] r5:008d0c00 r4:00177000 [ 61.810089] [<c03fdc58>] (dma_release_from_contiguous) from [<c001af14>] (__arm_dma_free+0x14c/0x1f8) [ 61.819658] [<c001adc8>] (__arm_dma_free) from [<c001b010>] (arm_dma_free+0x24/0x2c) [ 61.827466] r10:00000001 r9:c03c29f8 r8:ed02e080 r7:00000001 r6:ee206c00 r5:c001afec [ 61.835624] r4:ed02e480 [ 61.838209] [<c001afec>] (arm_dma_free) from [<c03de978>] (drm_gem_cma_free_object+0x5c/0x98) [ 61.847049] [<c03de91c>] (drm_gem_cma_free_object) from [<c03c2780>] (drm_gem_object_free+0x30/0x38) [ 61.856255] r5:ee206c34 r4:ed02e480 [ 61.859872] [<c03c2750>] (drm_gem_object_free) from [<c03c286c>] (drm_gem_object_handle_unreference_unlocked+0xe4/0x114) [ 61.871318] [<c03c2788>] (drm_gem_object_handle_unreference_unlocked) from [<c03c2a50>] (drm_gem_object_release_handle+0x58/0x70) [ 61.883071] r5:ed02e080 r4:ed02e480 [ 61.886908] [<c03c29f8>] (drm_gem_object_release_handle) from [<c02d4bbc>] (idr_for_each+0xac/0xe0) [ 61.896256] r7:00000001 r6:000000ff r5:ec209d50 r4:00000000 [ 61.901992] [<c02d4b10>] (idr_for_each) from [<c03c3104>] (drm_gem_release+0x20/0x30) [ 61.910107] r10:ed02e0dc r9:ee206c34 r8:ee206cc4 r7:ee206cc0 r6:ee206c00 r5:ed02e0e0 [ 61.918075] r4:ed02e0a0 [ 61.920651] [<c03c30e4>] (drm_gem_release) from [<c03c1e50>] (drm_release+0x378/0x518) [ 61.928926] r5:ed02e0e0 r4:ed02e080 [ 61.932560] [<c03c1ad8>] (drm_release) from [<c0104fbc>] (__fput+0x88/0x20c) [ 61.939897] r10:ed18bd88 r9:00000008 r8:ee293020 r7:00000000 r6:ee40d6d0 r5:ed812bb0 [ 61.947834] r4:ed18bd80 [ 61.950399] [<c0104f34>] (__fput) from [<c0105198>] (____fput+0x10/0x14) [ 61.957430] r10:08430000 r9:ee6c43b4 r8:ee6c4380 r7:ed309a28 r6:c094330c r5:ed309680 [ 61.965394] r4:ed18ba80 [ 61.967970] [<c0105188>] (____fput) from [<c004dfc0>] (task_work_run+0x94/0xc4) [ 61.975649] [<c004df2c>] (task_work_run) from [<c0037c94>] (do_exit+0x2e0/0x9a8) [ 61.983084] r7:00000001 r6:ec209edc r5:00000000 r4:ed309680 [ 61.988995] [<c00379b4>] (do_exit) from [<c00383dc>] (do_group_exit+0x44/0xf8) [ 61.996493] r7:ee7179c0 [ 61.999071] [<c0038398>] (do_group_exit) from [<c0042140>] (get_signal+0x2e4/0x700) [ 62.007052] r5:00418004 r4:00000009 [ 62.010686] [<c0041e5c>] (get_signal) from [<c00122b0>] (do_signal+0x6c/0x3cc) [ 62.018606] r10:00000000 r9:ec208000 r8:fffffe00 r7:b5836b16 r6:ec209ec8 r5:b5836b14 [ 62.026535] r4:ec209fb0 r3:002a4c8c [ 62.030149] [<c0012244>] (do_signal) from [<c00127d4>] (do_work_pending+0xa4/0xb4) [ 62.037996] r10:00000000 r9:ec208000 r8:c000fa24 r7:000000f0 r6:ec209fb0 r5:c000fa24 [ 62.045911] r4:ec208000 [ 62.048465] [<c0012730>] (do_work_pending) from [<c000f8cc>] (work_pending+0xc/0x20) [ 62.056455] r7:000000f0 r6:0000000f r5:00000000 r4:002a4c88 [ 62.062161] ---[ end trace e8a7009dde5ddb7c ]--- ​thanks Ankur
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