[Intel-gfx] YABT - pipe_off wait timed out

[Dave Airlie]

[    1.396361] ------------[ cut here ]------------
[    1.396396] WARNING: CPU: 2 PID: 108 at
/home/airlied/devel/kernel/drm-next/drivers/gpu/drm/i915/intel_display.c:997
intel_disable_pipe+0x2ae/0x2c0 [i915]()
[    1.396397] pipe_off wait timed out
[    1.396401] Modules linked in: i915 i2c_algo_bit video
drm_kms_helper drm i2ccore
[    1.396403] CPU: 2 PID: 108 Comm: kworker/u16:2 Not tainted 3.17.0-rc5+ #75
[    1.396404] Hardware name: Hewlett-Packard HP Z220 CMT
Workstation/1790, BIOS K51 v01.65 09/03/2013
[    1.396409] Workqueue: events_unbound async_run_entry_fn
[    1.396412]  0000000000000009 ffff8805f847b798 ffffffff81691069
ffff8805f847b7e0
[    1.396413]  ffff8805f847b7d0 ffffffff81073fad ffff8805f6ab0000
0000000000070008
[    1.396414]  00000000fffb7181 0000000000000000 ffff8805f8106330
ffff8805f847b830
[    1.396415] Call Trace:
[    1.396421]  [<ffffffff81691069>] dump_stack+0x45/0x56
[    1.396423]  [<ffffffff81073fad>] warn_slowpath_common+0x7d/0xa0
[    1.396425]  [<ffffffff8107401c>] warn_slowpath_fmt+0x4c/0x50
[    1.396447]  [<ffffffffa00e456e>] intel_disable_pipe+0x2ae/0x2c0 [i915]
[    1.396469]  [<ffffffffa00ef8dd>] ironlake_crtc_disable+0x9d/0x7c0 [i915]
[    1.396487]  [<ffffffffa00e1bec>] ?
intel_dump_pipe_config.isra.51+0x3c/0x3a0 [i915]
[    1.396489]  [<ffffffff811b3a66>] ? kmem_cache_alloc_trace+0x1d6/0x200
[    1.396508]  [<ffffffffa00e9f31>] __intel_set_mode+0x7b1/0x1620 [i915]
[    1.396511]  [<ffffffff8120e683>] ? ep_poll_callback+0xf3/0x160
[    1.396529]  [<ffffffffa00f2716>] intel_set_mode+0x16/0x30 [i915]
[    1.396547]  [<ffffffffa00f368c>] intel_crtc_set_config+0x92c/0xe50 [i915]
[    1.396558]  [<ffffffffa0025141>]
drm_mode_set_config_internal+0x61/0xf0 [drm]
[    1.396563]  [<ffffffffa007e843>] restore_fbdev_mode+0xd3/0x100
[drm_kms_helper]
[    1.396567]  [<ffffffffa007e893>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x23/0x40 [drm_kms_helper]
[    1.396572]  [<ffffffffa00804a8>] drm_fb_helper_set_par+0x28/0x70
[drm_kms_helper]
[    1.396593]  [<ffffffffa00fe3ca>] intel_fbdev_set_par+0x1a/0x60 [i915]
[    1.396595]  [<ffffffff81383244>] fbcon_init+0x4f4/0x580
[    1.396599]  [<ffffffff813e89a8>] visual_init+0xb8/0x120
[    1.396602]  [<ffffffff813eb013>] do_bind_con_driver+0x163/0x330
[    1.396604]  [<ffffffff813eb794>] do_take_over_console+0x114/0x1c0
[    1.396606]  [<ffffffff8137e993>] do_fbcon_takeover+0x63/0xd0
[    1.396608]  [<ffffffff81383ced>] fbcon_event_notify+0x68d/0x7e0
[    1.396610]  [<ffffffff8109097c>] notifier_call_chain+0x4c/0x70
[    1.396612]  [<ffffffff81090cbd>] __blocking_notifier_call_chain+0x4d/0x70
[    1.396613]  [<ffffffff81090cf6>] blocking_notifier_call_chain+0x16/0x20
[    1.396616]  [<ffffffff8138a23b>] fb_notifier_call_chain+0x1b/0x20
[    1.396617]  [<ffffffff8138c386>] register_framebuffer+0x1e6/0x320
[    1.396622]  [<ffffffffa008075f>]
drm_fb_helper_initial_config+0x26f/0x3c0 [drm_kms_helper]
[    1.396641]  [<ffffffffa00ff5bb>] intel_fbdev_initial_config+0x1b/0x20 [i915]
[    1.396643]  [<ffffffff81092479>] async_run_entry_fn+0x39/0x120
[    1.396645]  [<ffffffff8108a8a2>] process_one_work+0x142/0x3c0
[    1.396647]  [<ffffffff8108ac3b>] worker_thread+0x11b/0x480
[    1.396649]  [<ffffffff8108ab20>] ? process_one_work+0x3c0/0x3c0
[    1.396651]  [<ffffffff8108fab9>] kthread+0xc9/0xe0
[    1.396653]  [<ffffffff8108f9f0>] ? kthread_create_on_node+0x170/0x170
[    1.396656]  [<ffffffff816984ac>] ret_from_fork+0x7c/0xb0
[    1.396659]  [<ffffffff8108f9f0>] ? kthread_create_on_node+0x170/0x170
[    1.396660] ---[ end trace 94ef6c67e63fd2ee ]---
[    1.449389] [drm:ironlake_disable_pch_transcoder] *ERROR* failed to
disable transcoder A
[    1.451978] [drm:ivybridge_set_fifo_underrun_reporting] *ERROR*
uncleared fifo underrun on pipe A
[    1.451980] [drm:ivb_err_int_handler] *ERROR* Pipe A FIFO underrun
[    1.452429] [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared
pch fifo underrun on pch transcoder A
[    1.452431] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun

This is on an Ivybridge desktop with one DVI and one DP monitor with drm-next.

If I don't see a fix in the next while I'll just remove the warning, deal?

Dave.