search for: process_one_work

....488394] __schedule+0x322/0xaf0 > [ 861.489070] schedule+0x33/0x90 > [ 861.489744] rpm_resume+0x19c/0x850 > [ 861.490392] ? finish_wait+0x90/0x90 > [ 861.491068] __pm_runtime_resume+0x4e/0x90 > [ 861.491753] nouveau_display_hpd_work+0x22/0x60 [nouveau] > [ 861.492416] process_one_work+0x231/0x620 > [ 861.493068] worker_thread+0x44/0x3a0 > [ 861.493722] kthread+0x12b/0x150 > [ 861.494342] ? wq_pool_ids_show+0x140/0x140 > [ 861.494991] ? kthread_create_worker_on_cpu+0x70/0x70 > [ 861.495648] ret_from_fork+0x3a/0x50 > [ 861.496304] INFO: task kworker/6:...

...fffffff8c5ff2b4>] rpm_callback+0x24/0x80 [ 246.899695] [<ffffffff8c4ced30>] ? pci_pm_runtime_resume+0xa0/0xa0 [ 246.899698] [<ffffffff8c5fffee>] rpm_suspend+0x11e/0x6f0 [ 246.899701] [<ffffffff8c60149b>] pm_runtime_work+0x7b/0xc0 [ 246.899707] [<ffffffff8c0afe58>] process_one_work+0x1f8/0x750 [ 246.899710] [<ffffffff8c0afdd9>] ? process_one_work+0x179/0x750 [ 246.899713] [<ffffffff8c0b03fb>] worker_thread+0x4b/0x4f0 [ 246.899717] [<ffffffff8c0bf8fc>] ? preempt_count_sub+0x4c/0x80 [ 246.899720] [<ffffffff8c0b03b0>] ? process_one_work+0x750/0x75...

...8307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 12...

Latest version of https://patchwork.freedesktop.org/series/46815/ , with one small change re: ilia Lyude Paul (5): drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend() drm/nouveau: Fix deadlock with fb_helper with async RPM requests drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()

..._hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] > [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] > [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] > [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] > [ 246.692611] process_one_work+0x231/0x620 > [ 246.693725] worker_thread+0x214/0x3a0 > [ 246.694756] kthread+0x12b/0x150 > [ 246.695856] ? wq_pool_ids_show+0x140/0x140 > [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 > [ 246.697998] ret_from_fork+0x3a/0x50 > [ 246.699034] INFO: task kworker/0...

...861.487737] Call Trace: [ 861.488394] __schedule+0x322/0xaf0 [ 861.489070] schedule+0x33/0x90 [ 861.489744] rpm_resume+0x19c/0x850 [ 861.490392] ? finish_wait+0x90/0x90 [ 861.491068] __pm_runtime_resume+0x4e/0x90 [ 861.491753] nouveau_display_hpd_work+0x22/0x60 [nouveau] [ 861.492416] process_one_work+0x231/0x620 [ 861.493068] worker_thread+0x44/0x3a0 [ 861.493722] kthread+0x12b/0x150 [ 861.494342] ? wq_pool_ids_show+0x140/0x140 [ 861.494991] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.495648] ret_from_fork+0x3a/0x50 [ 861.496304] INFO: task kworker/6:2:320 blocked for more than 12...

...8307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 12...

Next version of https://patchwork.freedesktop.org/series/46815/ Same as previous version, but some small changes made to commit messages and acks/rbs have been added Lyude Paul (5): drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend() drm/nouveau: Fix deadlock with fb_helper with async RPM requests

Latest version of https://patchwork.freedesktop.org/series/46815/ with some significant improvements: - I finally figured out a clean way to do this entirely with runtime PM helpers, no avoiding grabbing refs required! - Since this new method removes the need for a lot of the other changes I made (although we probably still want those changes, but not for fixing these deadlocks)

..._hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] > [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] > [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] > [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] > [ 246.692611] process_one_work+0x231/0x620 > [ 246.693725] worker_thread+0x214/0x3a0 > [ 246.694756] kthread+0x12b/0x150 > [ 246.695856] ? wq_pool_ids_show+0x140/0x140 > [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 > [ 246.697998] ret_from_fork+0x3a/0x50 > [ 246.699034] INFO: task kworker/0...

..._hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] > [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] > [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] > [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] > [ 246.692611] process_one_work+0x231/0x620 > [ 246.693725] worker_thread+0x214/0x3a0 > [ 246.694756] kthread+0x12b/0x150 > [ 246.695856] ? wq_pool_ids_show+0x140/0x140 > [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 > [ 246.697998] ret_from_fork+0x3a/0x50 > [ 246.699034] INFO: task kworker/0...

...8307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 12...

...8307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 12...

...] default_device_exit_batch+0x156/0x180 [ 359.050624] [<ffffffff810fd6b0>] ? abort_exclusive_wait+0xb0/0xb0 [ 359.051185] [<ffffffff81706c43>] ops_exit_list.isra.1+0x53/0x60 [ 359.051720] [<ffffffff817077f0>] cleanup_net+0x100/0x1f0 [ 359.052271] [<ffffffff810ccdb8>] process_one_work+0x218/0x850 [ 359.052806] [<ffffffff810ccd1f>] ? process_one_work+0x17f/0x850 [ 359.053356] [<ffffffff810cd4d7>] ? worker_thread+0xe7/0x4a0 [ 359.053891] [<ffffffff810cd45b>] worker_thread+0x6b/0x4a0 [ 359.054444] [<ffffffff810cd3f0>] ? process_one_work+0x850/0x850 [...

...8307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 12...

This is the latest version of https://patchwork.freedesktop.org/series/46815/ With a bunch of fixes to the new fb_helper to prevent it from breaking module loading/unloading with nouveau. Also; lots of documentation fixes and one fix in response to a kbuild bot. Lyude Paul (8): drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement drm/nouveau: Enable polling even if we have runtime

...eset_lock+0x35/0xb0 [drm] [354073.762243] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354073.762251] drm_modeset_lock_all+0x5e/0xb0 [drm] [354073.762252] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354073.762254] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354073.762256] process_one_work+0x20f/0x410 [354073.762257] worker_thread+0x34/0x400 [354073.762259] kthread+0x120/0x140 [354073.762260] ? process_one_work+0x410/0x410 [354073.762261] ? __kthread_parkme+0x70/0x70 [354073.762262] ret_from_fork+0x35/0x40 [354194.557095] INFO: task Xorg:920 blocked for more than 241 seconds. [3...

...eset_lock+0x35/0xb0 [drm] [354073.762243] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354073.762251] drm_modeset_lock_all+0x5e/0xb0 [drm] [354073.762252] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354073.762254] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354073.762256] process_one_work+0x20f/0x410 [354073.762257] worker_thread+0x34/0x400 [354073.762259] kthread+0x120/0x140 [354073.762260] ? process_one_work+0x410/0x410 [354073.762261] ? __kthread_parkme+0x70/0x70 [354073.762262] ret_from_fork+0x35/0x40 [354194.557095] INFO: task Xorg:920 blocked for more than 241 seconds. [3...

...t; [drm_kms_helper] > > [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 > > [drm_kms_helper] > > [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] > > [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] > > [ 246.692611] process_one_work+0x231/0x620 > > [ 246.693725] worker_thread+0x214/0x3a0 > > [ 246.694756] kthread+0x12b/0x150 > > [ 246.695856] ? wq_pool_ids_show+0x140/0x140 > > [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 > > [ 246.697998] ret_from_fork+0x3a/0x50 > > [ 24...

This is a trimmed down version of https://patchwork.freedesktop.org/series/46637/ with all of the review comments addressed. The last version of this series had fixes for the i2c and DP aux busses to ensure that the GPU would be turned on whenever anything tried to access the i2c/aux busses. Unfortunately: one of the fixes apparently contained some very incorrect usage of Linux's runtime PM