Hi!
I have been seeing the annoying message below non-stop:
i915: sleeping function called from invalid context at intel_pipe_update_start/end
[drm] Initialized i915 1.6.0 20150130 for 0000:00:02.0 on minor 0
fbcon: inteldrmfb (fb0) is primary device
BUG: sleeping function called from invalid context at /home/lclaudio/SANDBOX/mrg-rt-v2-devel/kernel/locking/rtmutex.c:917
in_atomic(): 0, irqs_disabled(): 1, pid: 111, name: kworker/u8:5
9 locks held by kworker/u8:5/111:
#0: ("events_unbound"){......}, at: [<ffffffff8109a06d>] process_one_work+0x17d/0x640
#1: ((&entry->work)){......}, at: [<ffffffff8109a06d>] process_one_work+0x17d/0x640
#2: (registration_lock){......}, at: [<ffffffff81416314>] register_framebuffer+0x34/0x3a0
#3: (console_lock){......}, at: [<ffffffff81416534>] register_framebuffer+0x254/0x3a0
#4: (&fb_info->lock){......}, at: [<ffffffff814145db>] lock_fb_info+0x1b/0x40
#5: ((fb_notifier_list).rwsem){......}, at: [<ffffffff810d7d60>] rt_down_read+0x10/0x20
#6: (&dev->mode_config.mutex){......}, at: [<ffffffffa007476e>] __drm_modeset_lock_all+0x8e/0x120 [drm]
#7: (crtc_ww_class_acquire){......}, at: [<ffffffffa0074778>] __drm_modeset_lock_all+0x98/0x120 [drm]
#8: (crtc_ww_class_mutex){......}, at: [<ffffffffa007432d>] drm_modeset_lock+0x3d/0x110 [drm]
CPU: 0 PID: 111 Comm: kworker/u8:5 Not tainted 4.0.5-rt4+ #4
Hardware name: Hewlett-Packard p7-1512/2ADA, BIOS 8.15 02/05/2013
Workqueue: events_unbound async_run_entry_fn
0000000000000000 000000002b54f949 ffff88003de17658 ffffffff81783f82
000000002b54f949 0000000000000000 ffff88003de17678 ffffffff810a6578
ffff88018aef5808 ffff88018aef5808 ffff88003de176a8 ffffffff8178abe4
Call Trace:
[<ffffffff81783f82>] dump_stack+0x4f/0x90
[<ffffffff810a6578>] ___might_sleep+0xf8/0x170
[<ffffffff8178abe4>] rt_spin_lock+0x24/0x60
[<ffffffff810acff5>] ? migrate_disable+0x85/0xf0
[<ffffffff810c7a0b>] prepare_to_wait+0x2b/0x90
[<ffffffffa005ab3f>] ? drm_vblank_get+0x6f/0xc0 [drm]
[<ffffffffa0161ace>] intel_pipe_update_start+0x1be/0x390 [i915]
[<ffffffff810c7e00>] ? wait_woken+0xa0/0xa0
[<ffffffffa014a6f9>] intel_begin_crtc_commit+0x159/0x1c0 [i915]
[<ffffffffa00cc464>] drm_atomic_helper_commit_planes+0x64/0x1b0 [drm_kms_helper]
[<ffffffffa00c9f0c>] ? drm_atomic_helper_prepare_planes+0x5c/0xe0 [drm_kms_helper]
[<ffffffffa016822e>] intel_atomic_commit+0xbe/0x110 [i915]
[<ffffffffa0075397>] drm_atomic_commit+0x37/0x60 [drm]
[<ffffffffa00cb48d>] drm_atomic_helper_plane_set_property+0x8d/0xd0 [drm_kms_helper]
[<ffffffffa006313d>] drm_mode_plane_set_obj_prop+0x2d/0x90 [drm]
[<ffffffffa00cd2fb>] restore_fbdev_mode+0x6b/0xf0 [drm_kms_helper]
[<ffffffffa00cf3b9>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80 [drm_kms_helper]
[<ffffffffa00cf432>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
[<ffffffffa0163c4a>] intel_fbdev_set_par+0x1a/0x60 [i915]
[<ffffffff8140d3f8>] fbcon_init+0x588/0x610
[<ffffffff81481c4c>] visual_init+0xbc/0x120
[<ffffffff8148449e>] do_bind_con_driver+0x17e/0x3c0
[<ffffffff81484c44>] do_take_over_console+0xb4/0x1b0
[<ffffffff814081f3>] do_fbcon_takeover+0x63/0xd0
[<ffffffff8140df4d>] fbcon_event_notify+0x6dd/0x7e0
[<ffffffff810a11bf>] notifier_call_chain+0x4f/0x80
[<ffffffff810d7d60>] ? rt_down_read+0x10/0x20
[<ffffffff810a14b1>] __blocking_notifier_call_chain+0x51/0x70
[<ffffffff810a14e6>] blocking_notifier_call_chain+0x16/0x20
[<ffffffff8141401b>] fb_notifier_call_chain+0x1b/0x20
[<ffffffff81416557>] register_framebuffer+0x277/0x3a0
[<ffffffffa00cf6c4>] drm_fb_helper_initial_config+0x264/0x3c0 [drm_kms_helper]
[<ffffffffa0164f5b>] intel_fbdev_initial_config+0x1b/0x20 [i915]
[<ffffffff810a2f4c>] async_run_entry_fn+0x4c/0x160
[<ffffffff8109a108>] process_one_work+0x218/0x640
[<ffffffff8109a06d>] ? process_one_work+0x17d/0x640
[<ffffffff8109a58b>] worker_thread+0x5b/0x500
[<ffffffff8109a530>] ? process_one_work+0x640/0x640
[<ffffffff8109fd56>] kthread+0xf6/0x110
[<ffffffff810cfb5e>] ? put_lock_stats.isra.24+0xe/0x40
[<ffffffff8109fc60>] ? kthread_create_on_node+0x260/0x260
[<ffffffff8178b688>] ret_from_fork+0x58/0x90
[<ffffffff8109fc60>] ? kthread_create_on_node+0x260/0x260
[drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
Console: switching to colour frame buffer device 240x67
i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
i915 0000:00:02.0: registered panic notifier
Signed-off-by: Luis Claudio R. Goncalves <lgoncalv@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 9c5451c..2b9e648 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -101,7 +101,7 @@ bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl_count)
if (WARN_ON(drm_vblank_get(dev, pipe)))
return false;
- local_irq_disable();
+ local_irq_disable_nort();
trace_i915_pipe_update_start(crtc, min, max);
@@ -123,11 +123,11 @@ bool intel_pipe_update_start(struct intel_crtc *crtc, uint32_t *start_vbl_count)
break;
}
- local_irq_enable();
+ local_irq_enable_nort();
timeout = schedule_timeout(timeout);
- local_irq_disable();
+ local_irq_disable_nort();
}
finish_wait(wq, &wait);
@@ -158,7 +158,7 @@ void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count)
trace_i915_pipe_update_end(crtc, end_vbl_count);
- local_irq_enable();
+ local_irq_enable_nort();
if (start_vbl_count != end_vbl_count)
DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u)\n",
--
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