ubuntu@bionic-dev64:~$ v4l2-ctl -d3 -v width=2592,height=1944,pixelformat=UYVY,bytesperline=5184 --stream-mmap --stream-to video.UYVY
[   70.139006] cma: cma_alloc(cma (____ptrval____), count 4050, align 8)
[   70.159829] cma: cma_alloc(cma (____ptrval____), count 4050, align 8)
[   70.166292] cma: cma_alloc: alloc failed, req-size: 4050 pages, ret: -12
[   70.173006] cma: number of available pages: 72@184+3886@4306=> 3958 free of 8192 total pages
[   70.181471] cma: cma_alloc(): returned (____ptrval____)
[   70.192449] cma: cma_alloc(cma (____ptrval____), count 4050, align 8)
[   70.198907] cma: cma_alloc: alloc failed, req-size: 4050 pages, ret: -12
[   70.205625] cma: number of available pages: 72@184+3886@4306=> 3958 free of 8192 total pages
[   70.205733] systemd-journald[204]: /var/log/journal/5cca8918401249538eacb5efd5b9b052/system.journal: Journal file corrupted, rotating.
[   70.214083] cma: cma_alloc(): returned (____ptrval____)
[   70.219867] cma: cma_alloc(cma (____ptrval____), count 4050, align 8)
[   70.237878] cma: cma_alloc: alloc failed, req-size: 4050 pages, ret: -12
[   70.244599] cma: number of available pages: 72@184+3886@4306=> 3958 free of 8192 total pages
[   70.253066] cma: cma_alloc(): returned (____ptrval____)
[   70.264893] cma: cma_release(page (____ptrval____))
[   70.272871] cma: cma_release(page (____ptrval____))
[   70.277800] BUG: Bad page state in process v4l2-ctl  pfn:b5a00
[   70.283652] page:ffff7e0001d68000 refcount:13 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0
[   70.293874] flags: 0xffff00000010000(head)
[   70.297999] raw: 0ffff00000010000 dead000000000100 dead000000000122 0000000000000000
[   70.305772] raw: 0000000000000000 0000000000000000 0000000dffffffff 0000000000000000
[   70.313526] page dumped because: nonzero _refcount
[   70.318327] Modules linked in:
[   70.321399] CPU: 2 PID: 482 Comm: v4l2-ctl Not tainted 5.3.0-rc1+ #159
[   70.327927] Hardware name: Boundary Devices i.MX8MQ Nitrogen8M (DT)
[   70.334196] Call trace:
[   70.336654]  dump_backtrace+0x0/0x148
[   70.340319]  show_stack+0x14/0x20
[   70.343640]  dump_stack+0x9c/0xc4
[   70.346959]  bad_page+0xe4/0x148
[   70.350188]  free_pages_check_bad+0x70/0xa8
[   70.354375]  __free_pages_ok+0x294/0x2b0
[   70.358301]  __free_pages+0x38/0x50
[   70.361795]  dma_free_contiguous+0x90/0x98
[   70.365892]  __dma_direct_free_pages+0x18/0x20
[   70.370338]  arch_dma_free+0x74/0x88
[   70.373916]  dma_direct_free+0x4c/0x58
[   70.377668]  dma_free_attrs+0x88/0xe0
[   70.381335]  vb2_dc_put+0x44/0x60
[   70.384653]  __vb2_buf_mem_free+0x68/0x110
[   70.388749]  __vb2_queue_free+0x398/0x538
[   70.392763]  vb2_core_queue_release+0x34/0x48
[   70.397122]  _vb2_fop_release+0x88/0x98
[   70.400960]  vb2_fop_release+0x28/0x50
[   70.404712]  vivid_fop_release+0x88/0x208
[   70.408725]  v4l2_release+0x6c/0xf0
[   70.412216]  __fput+0x8c/0x1f8
[   70.415270]  ____fput+0xc/0x18
[   70.418328]  task_work_run+0x94/0xb0
[   70.421907]  do_exit+0x2b0/0x9f8
[   70.425138]  do_group_exit+0x34/0x98
[   70.428717]  get_signal+0x104/0x678
[   70.432209]  do_notify_resume+0x2ac/0x380
[   70.436220]  work_pending+0x8/0x10
[   70.439648] Disabling lock debugging due to kernel taint
[   70.444974] BUG: Bad page state in process v4l2-ctl  pfn:b5a01
[   70.450822] page:ffff7e0001d68040 refcount:0 mapcount:0 mapping:dead000000000400 index:0x1 compound_mapcount: 0
[   70.451427] printk: systemd: 27 output lines suppressed due to ratelimiting
[   70.460924] flags: 0xffff00000000000()
[   70.460931] raw: 0ffff00000000000 ffff7e0001d68001 ffffffff01d60301 dead000000000400
[   70.467945] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b
[   70.471659] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   70.479389] CPU: 1 PID: 1 Comm: systemd Tainted: G    B             5.3.0-rc1+ #159
[   70.479394] Hardware name: Boundary Devices i.MX8MQ Nitrogen8M (DT)
[   70.487058] page dumped because: non-NULL mapping
[   70.494782] Call trace:
[   70.494789]  dump_backtrace+0x0/0x148
[   70.494793]  show_stack+0x14/0x20
[   70.494799]  dump_stack+0x9c/0xc4
[   70.502460] Modules linked in:
[   70.508713]  panic+0x140/0x32c
[   70.508718]  complete_and_exit+0x0/0x20
[   70.508724]  do_group_exit+0x34/0x98
[   70.539649]  get_signal+0x104/0x678
[   70.543139]  do_notify_resume+0x2ac/0x380
[   70.547149]  work_pending+0x8/0x10
[   70.550553] CPU: 2 PID: 482 Comm: v4l2-ctl Tainted: G    B             5.3.0-rc1+ #159
[   70.550554] SMP: stopping secondary CPUs
[   70.562387] Hardware name: Boundary Devices i.MX8MQ Nitrogen8M (DT)
[   70.568653] Call trace:
[   70.571103]  dump_backtrace+0x0/0x148
[   70.574765]  show_stack+0x14/0x20
[   70.578081]  dump_stack+0x9c/0xc4
[   70.581398]  bad_page+0xe4/0x148
[   70.584627]  free_pages_check_bad+0x70/0xa8
[   70.588814]  __free_pages_ok+0x294/0x2b0
[   70.592737]  __free_pages+0x38/0x50
[   70.596229]  dma_free_contiguous+0x90/0x98
[   70.600327]  __dma_direct_free_pages+0x18/0x20
[   70.604771]  arch_dma_free+0x74/0x88
[   70.608347]  dma_direct_free+0x4c/0x58
[   70.612098]  dma_free_attrs+0x88/0xe0
[   70.615765]  vb2_dc_put+0x44/0x60
[   70.619082]  __vb2_buf_mem_free+0x68/0x110
[   70.623180]  __vb2_queue_free+0x398/0x538
[   70.627192]  vb2_core_queue_release+0x34/0x48
[   70.631551]  _vb2_fop_release+0x88/0x98
[   70.635387]  vb2_fop_release+0x28/0x50
[   70.639138]  vivid_fop_release+0x88/0x208
[   70.643149]  v4l2_release+0x6c/0xf0
[   70.646638]  __fput+0x8c/0x1f8
[   70.649693]  ____fput+0xc/0x18
[   70.652750]  task_work_run+0x94/0xb0
[   70.656326]  do_exit+0x2b0/0x9f8
[   70.659554]  do_group_exit+0x34/0x98
[   70.663130]  get_signal+0x104/0x678
[   70.666621]  do_notify_resume+0x2ac/0x380
[   70.670632]  work_pending+0x8/0x10
[   70.674036] Kernel Offset: disabled
[   70.677526] CPU features: 0x0002,2000200c
[   70.681535] Memory Limit: none
[   70.684599] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]---