On Mon, Jan 03, 2022 at 09:35:14AM -0300, Fabio Estevam wrote: > Hi Laurent, > > On Mon, Jan 3, 2022 at 8:48 AM Laurent Pinchart > <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > > > With the comment from 2/2 taken into account, > > > > Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > Thanks for the review. I addressed your feedback and sent v2. > > I noticed a problem when removing/inserting the HDMI cable. > > If I boot the board with the HDMI cable connected, then after > removal/insertion of the HDMI cable, the following > kernel warning is observed: > > # [ 23.201080] ------------[ cut here ]------------ > [ 23.207275] WARNING: CPU: 0 PID: 56 at > drivers/gpu/drm/drm_atomic_helper.c:1514 > drm_atomic_helper_wait_for_vblanks.part.0+0x27c/0x294 > [ 23.221469] [CRTC:35:crtc-0] vblank wait timed out > [ 23.226448] Modules linked in: > [ 23.230255] CPU: 0 PID: 56 Comm: kworker/0:3 Not tainted > 5.15.12-00003-g27f29fb60028 #94 > [ 23.238508] Hardware name: Freescale i.MX6 SoloX (Device Tree) > [ 23.244457] Workqueue: events output_poll_execute > [ 23.249377] [<c01118f8>] (unwind_backtrace) from [<c010bde0>] > (show_stack+0x10/0x14) > [ 23.257316] [<c010bde0>] (show_stack) from [<c0e8d38c>] > (dump_stack_lvl+0x58/0x70) > [ 23.265059] [<c0e8d38c>] (dump_stack_lvl) from [<c0125e2c>] > (__warn+0xd8/0x114) > [ 23.272533] [<c0125e2c>] (__warn) from [<c0e87f94>] > (warn_slowpath_fmt+0x90/0xc4) > [ 23.280166] [<c0e87f94>] (warn_slowpath_fmt) from [<c0707c98>] > (drm_atomic_helper_wait_for_vblanks.part.0+0x27c/0x294) > [ 23.291054] [<c0707c98>] > (drm_atomic_helper_wait_for_vblanks.part.0) from [<c07092cc>] > (drm_atomic_helper_commit_tail_rpm+0x5c/0x6c) > [ 23.303150] [<c07092cc>] (drm_atomic_helper_commit_tail_rpm) from > [<c0709e44>] (commit_tail+0x9c/0x190) > [ 23.312717] [<c0709e44>] (commit_tail) from [<c070a098>] > (drm_atomic_helper_commit+0x158/0x18c) > [ 23.321588] [<c070a098>] (drm_atomic_helper_commit) from > [<c073f4e4>] (drm_client_modeset_commit_atomic+0x238/0x284) > [ 23.332314] [<c073f4e4>] (drm_client_modeset_commit_atomic) from > [<c073f600>] (drm_client_modeset_commit_locked+0x60/0x1cc) > [ 23.343615] [<c073f600>] (drm_client_modeset_commit_locked) from > [<c073f790>] (drm_client_modeset_commit+0x24/0x40) > [ 23.354218] [<c073f790>] (drm_client_modeset_commit) from > [<c071050c>] (__drm_fb_helper_restore_fbdev_mode_unlocked+0x9c/0xc8) > [ 23.365803] [<c071050c>] > (__drm_fb_helper_restore_fbdev_mode_unlocked) from [<c07105a0>] > (drm_fb_helper_set_par+0x38/0x68) > [ 23.377015] [<c07105a0>] (drm_fb_helper_set_par) from [<c0710674>] > (drm_fb_helper_hotplug_event.part.0+0xa4/0xc0) > [ 23.387443] [<c0710674>] (drm_fb_helper_hotplug_event.part.0) from > [<c073ea80>] (drm_client_dev_hotplug+0x6c/0xb4) > [ 23.397959] [<c073ea80>] (drm_client_dev_hotplug) from [<c06fc5e0>] > (output_poll_execute+0x200/0x21c) > [ 23.407346] [<c06fc5e0>] (output_poll_execute) from [<c0147f54>] > (process_one_work+0x298/0x7cc) > [ 23.416224] [<c0147f54>] (process_one_work) from [<c01484b8>] > (worker_thread+0x30/0x50c) > [ 23.424479] [<c01484b8>] (worker_thread) from [<c015138c>] > (kthread+0x154/0x17c) > [ 23.432039] [<c015138c>] (kthread) from [<c010011c>] > (ret_from_fork+0x14/0x38) > [ 23.439413] Exception stack(0xc42a1fb0 to 0xc42a1ff8) > [ 23.444588] 1fa0: 00000000 > 00000000 00000000 00000000 > [ 23.452888] 1fc0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > [ 23.461182] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 23.468734] irq event stamp: 43775 > [ 23.472305] hardirqs last enabled at (43783): [<c0197408>] > __up_console_sem+0x50/0x60 > [ 23.480785] hardirqs last disabled at (43792): [<c01973f4>] > __up_console_sem+0x3c/0x60 > [ 23.489224] softirqs last enabled at (43774): [<c010150c>] > __do_softirq+0x2ec/0x5a4 > [ 23.497163] softirqs last disabled at (43747): [<c012efdc>] > irq_exit+0x18c/0x210 > [ 23.505106] ---[ end trace 86572327287ca501 ]--- > > I haven't managed to fix this yet, but if you have any suggestions, > please let me know. > > Thanks, > > Fabio Estevam Hi Fabio, If you need some test let me know. Whitch filesystem are you using? In the next days I will investigate on this issue. Let me know. Thanks, Tommaso
