[Bug 97771] intel_dp.c trace / laptop lockup

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=97771

tianye <yex.tian at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |yex.tian at intel.com

--- Comment #10 from tianye <yex.tian at intel.com> ---
This bug is also exists on BDW-U (Lenovo L450 i3-5005U) with 4.2_rc2 kernel.

dmesg info:
------------------------

[    6.175269] ------------[ cut here ]------------
[    6.175284] WARNING: CPU: 0 PID: 149 at drivers/gpu/drm/drm_irq.c:1162
drm_wait_one_vblank+0x173/0x180 [drm]()
[    6.175285] vblank not available on crtc 0, ret=-22
[    6.175312] Modules linked in: snd_hda_intel cfg80211 snd_hda_codec
kvm_intel(-) snd_hda_core kvm snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event
snd_rawmidi snd_seq psmouse crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
snd_seq_device snd_timer cryptd xhci_pci rtsx_pci_ms memstick serio_raw mei_me
ehci_pci i915 drm_kms_helper drm xhci_hcd ehci_hcd snd mei i2c_algo_bit wmi
mac_hid soundcore video lpc_ich parport_pc ppdev lp parport rtsx_pci_sdmmc ahci
e1000e libahci rtsx_pci ptp pps_core
[    6.175315] CPU: 0 PID: 149 Comm: kworker/u16:4 Tainted: G        W      
4.2.0-rc2-mainline-4.2-rc1 #2
[    6.175316] Hardware name: LENOVO 20DSA060CD/Intel powered classmate PC,
BIOS JDET50WW (1.12 ) 03/25/2015
[    6.175322] Workqueue: events_unbound async_run_entry_fn
[    6.175325]  ffffffffa01aed32 ffff8800360a3738 ffffffff81751af6
0000000000000001
[    6.175327]  ffff8800360a3788 ffff8800360a3778 ffffffff810736cc
ffff8800360a37a8
[    6.175329]  ffff8800c5381000 0000000000000000 ffff8800c5381000
0000000000000000
[    6.175330] Call Trace:
[    6.175335]  [<ffffffff81751af6>] dump_stack+0x45/0x57
[    6.175338]  [<ffffffff810736cc>] warn_slowpath_common+0x8c/0xd0
[    6.175340]  [<ffffffff81073756>] warn_slowpath_fmt+0x46/0x50
[    6.175351]  [<ffffffffa0182ab3>] drm_wait_one_vblank+0x173/0x180 [drm]
[    6.175381]  [<ffffffffa0203a41>] ? intel_runtime_pm_get+0x41/0x80 [i915]
[    6.175416]  [<ffffffffa025e629>] intel_finish_crtc_commit+0x169/0x170
[i915]
[    6.175425]  [<ffffffffa01ddf4e>]
drm_atomic_helper_commit_planes+0x11e/0x200 [drm_kms_helper]
[    6.175457]  [<ffffffffa025f88a>] __intel_set_mode+0x90a/0xb70 [i915]
[    6.175485]  [<ffffffffa0260da2>] ? intel_modeset_compute_config+0x362/0xb60
[i915]
[    6.175512]  [<ffffffffa0266739>] intel_crtc_set_config+0x379/0x630 [i915]
[    6.175527]  [<ffffffffa018b308>] drm_mode_set_config_internal+0x68/0x100
[drm]
[    6.175534]  [<ffffffffa01dec33>] restore_fbdev_mode+0xc3/0xf0
[drm_kms_helper]
[    6.175540]  [<ffffffffa01e0a09>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70 [drm_kms_helper]
[    6.175545]  [<ffffffffa01e0a72>] drm_fb_helper_set_par+0x22/0x40
[drm_kms_helper]
[    6.175575]  [<ffffffffa0274bba>] intel_fbdev_set_par+0x1a/0x60 [i915]
[    6.175579]  [<ffffffff813f71e6>] fbcon_init+0x4c6/0x550
[    6.175582]  [<ffffffff81487ff0>] visual_init+0xc0/0x120
[    6.175584]  [<ffffffff8148a5b8>] do_bind_con_driver+0x148/0x310
[    6.175587]  [<ffffffff8148aaa3>] do_take_over_console+0x143/0x1b0
[    6.175589]  [<ffffffff813f2639>] do_fbcon_takeover+0x59/0xb0
[    6.175592]  [<ffffffff813f7bf5>] fbcon_event_notify+0x615/0x760
[    6.175594]  [<ffffffff810920fd>] notifier_call_chain+0x4d/0x80
[    6.175596]  [<ffffffff8109242d>] __blocking_notifier_call_chain+0x4d/0x70
[    6.175599]  [<ffffffff81092466>] blocking_notifier_call_chain+0x16/0x20
[    6.175601]  [<ffffffff813fd6cb>] fb_notifier_call_chain+0x1b/0x20
[    6.175604]  [<ffffffff813ff5c0>] register_framebuffer+0x1e0/0x300
[    6.175611]  [<ffffffffa01e0ce7>] drm_fb_helper_initial_config+0x257/0x3c0
[drm_kms_helper]
[    6.175640]  [<ffffffffa0275d2b>] intel_fbdev_initial_config+0x1b/0x20
[i915]
[    6.175643]  [<ffffffff81093c6c>] async_run_entry_fn+0x4c/0x160
[    6.175647]  [<ffffffff8108b73e>] process_one_work+0x14e/0x3d0
[    6.175649]  [<ffffffff8108bdea>] worker_thread+0x11a/0x470
[    6.175652]  [<ffffffff8108bcd0>] ? rescuer_thread+0x310/0x310
[    6.175655]  [<ffffffff810912a2>] kthread+0xd2/0xf0
[    6.175658]  [<ffffffff810911d0>] ? kthread_create_on_node+0x180/0x180
[    6.175661]  [<ffffffff8175935f>] ret_from_fork+0x3f/0x70
[    6.175664]  [<ffffffff810911d0>] ? kthread_create_on_node+0x180/0x180
[    6.175666] ---[ end trace 4c30203e764495c2 ]---

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