[Intel-gfx] [PATCH] drm/i915: drm locks up when connecting laptop to docking station

Tue Apr 7 10:01:21 PDT 2015

Hello,

since late 4.0-rc4 / early4.0-rc5 drm-intel branch I'm experiencing lockups every time I try to connect my lenovo t440p laptop to its docking station. 

[  143.896172] ------------[ cut here ]------------
[  143.896182] WARNING: CPU: 0 PID: 1102 at drivers/gpu/drm/drm_atomic_helper.c:2204 drm_atomic_helper_connector_duplicate_state+0x35/0x40 [drm_kms_helper]()
[  143.896184] Modules linked in: snd_hda_codec_hdmi i915 snd_hda_codec_realtek snd_hda_codec_generic iwlmvm snd_hda_intel snd_hda_controller i2c_algo_bit drm_kms_helper snd_hda_codec drm iwlwifi snd_hwdep snd_pcm intel_gtt snd_timer thinkpad_acpi agpgart snd_hda_core
[  143.896201] CPU: 0 PID: 1102 Comm: X Not tainted 4.0.0-rc7-01086-g91d1586 #1
[  143.896202] Hardware name: LENOVO qqqqENX407/qqqqENX407, BIOS GLET77WW (2.31 ) 01/27/2015
[  143.896203]  0000000000000000 ffffffffa0171420 ffffffff81590365 0000000000000000
[  143.896206]  ffffffff81043617 fffffffffffffff4 ffff8804098d7d80 ffff8800c9cd3000
[  143.896209]  0000000000000006 ffff8800c9c7a800 ffffffffa016bf05 0000000000000000
[  143.896212] Call Trace:
[  143.896219]  [<ffffffff81590365>] ? dump_stack+0x40/0x50
[  143.896223]  [<ffffffff81043617>] ? warn_slowpath_common+0x77/0xb0
[  143.896228]  [<ffffffffa016bf05>] ? drm_atomic_helper_connector_duplicate_state+0x35/0x40 [drm_kms_helper]
[  143.896235]  [<ffffffffa00efea5>] ? drm_atomic_get_connector_state+0x95/0x110 [drm]
[  143.896252]  [<ffffffffa0352e8f>] ? intel_crtc_set_config+0xc6f/0xfb0 [i915]
[  143.896258]  [<ffffffff8112c21b>] ? ep_poll_callback+0xeb/0x120
[  143.896264]  [<ffffffffa00eed99>] ? drm_modeset_lock_all_crtcs+0xa9/0xc0 [drm]
[  143.896273]  [<ffffffffa00dffff>] ? drm_mode_set_config_internal+0x5f/0x100 [drm]
[  143.896281]  [<ffffffffa00e47fa>] ? drm_mode_setcrtc+0x22a/0x5f0 [drm]
[  143.896288]  [<ffffffffa00d65ca>] ? drm_ioctl+0x15a/0x580 [drm]
[  143.896292]  [<ffffffff8106b8cf>] ? pick_next_task_fair+0x43f/0x4b0
[  143.896295]  [<ffffffff81103488>] ? do_vfs_ioctl+0x2e8/0x4f0
[  143.896298]  [<ffffffff8159288d>] ? __schedule+0x24d/0x7c0
[  143.896301]  [<ffffffff811036c6>] ? SyS_ioctl+0x36/0x80
[  143.896303]  [<ffffffff811055f2>] ? SyS_poll+0x52/0xf0
[  143.896307]  [<ffffffff81595f36>] ? system_call_fastpath+0x16/0x1b
[  143.896309] ---[ end trace 17ff49bc79a1a762 ]---
[  143.896318] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[  143.896362] IP: [<ffffffffa00eff84>] drm_atomic_add_affected_connectors+0x64/0xc0 [drm]
[  143.896403] PGD 406577067 PUD 408c42067 PMD 0 
[  143.896426] Oops: 0000 [#1] SMP 
[  143.896439] Modules linked in: snd_hda_codec_hdmi i915 snd_hda_codec_realtek snd_hda_codec_generic iwlmvm snd_hda_intel snd_hda_controller i2c_algo_bit drm_kms_helper snd_hda_codec drm iwlwifi snd_hwdep snd_pcm intel_gtt snd_timer thinkpad_acpi agpgart snd_hda_core
[  143.896584] CPU: 0 PID: 1102 Comm: X Tainted: G        W       4.0.0-rc7-01086-g91d1586 #1
[  143.896619] Hardware name: LENOVO qqqqENX407/qqqqENX407, BIOS GLET77WW (2.31 ) 01/27/2015
[  143.896654] task: ffff88040652b1e0 ti: ffff880409a90000 task.ti: ffff880409a90000
[  143.896686] RIP: 0010:[<ffffffffa00eff84>]  [<ffffffffa00eff84>] drm_atomic_add_affected_connectors+0x64/0xc0 [drm]
[  143.896738] RSP: 0018:ffff880409a93b18  EFLAGS: 00010283
[  143.896759] RAX: 0000000000000000 RBX: ffff8800c9cd3000 RCX: ffff88040af8ec00
[  143.896789] RDX: ffff88040a603e20 RSI: ffff880408d916a8 RDI: ffff88040af8eea8
[  143.896819] RBP: ffff8800c9c7ab28 R08: 0000000000015700 R09: ffff880409a93c30
[  143.896849] R10: ffff88040dc01500 R11: ffffffffa00ef362 R12: ffff88040c38d000
[  143.896878] R13: ffff8804098d7d80 R14: ffff880409a93c34 R15: ffff88040c38d000
[  143.896909] FS:  00007f13fb95f8c0(0000) GS:ffff88041e200000(0000) knlGS:0000000000000000
[  143.896943] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  143.896966] CR2: 0000000000000008 CR3: 000000040bbd7000 CR4: 00000000001406f0
[  143.896995] Stack:
[  143.897000]  0000000000000006 ffff8800c9c7a800 ffff880409a93c30 ffff8804098d7d80
[  143.897037]  0000000000000000 ffffffffa034c0ac 0000000000000000 ffff880409a93c2c
[  143.897074]  000000000000000c 0000000000000000 ffffffffa0171420 000000000000089c
[  143.897112] Call Trace:
[  143.897131]  [<ffffffffa034c0ac>] ? intel_modeset_compute_config+0x3c/0x1090 [i915]
[  143.897166]  [<ffffffff8158f7b5>] ? printk+0x48/0x4d
[  143.897196]  [<ffffffffa0351b49>] ? intel_set_mode+0x39/0xa0 [i915]
[  143.897225]  [<ffffffffa016bf05>] ? drm_atomic_helper_connector_duplicate_state+0x35/0x40 [drm_kms_helper]
[  143.897272]  [<ffffffffa00ef362>] ? drm_atomic_state_clear+0xb2/0x180 [drm]
[  143.897311]  [<ffffffffa0352c3d>] ? intel_crtc_set_config+0xa1d/0xfb0 [i915]
[  143.897343]  [<ffffffff8112c21b>] ? ep_poll_callback+0xeb/0x120
[  143.897372]  [<ffffffffa00eed99>] ? drm_modeset_lock_all_crtcs+0xa9/0xc0 [drm]
[  143.897409]  [<ffffffffa00dffff>] ? drm_mode_set_config_internal+0x5f/0x100 [drm]
[  143.897447]  [<ffffffffa00e47fa>] ? drm_mode_setcrtc+0x22a/0x5f0 [drm]
[  143.897479]  [<ffffffffa00d65ca>] ? drm_ioctl+0x15a/0x580 [drm]
[  143.897505]  [<ffffffff8106b8cf>] ? pick_next_task_fair+0x43f/0x4b0
[  143.897532]  [<ffffffff81103488>] ? do_vfs_ioctl+0x2e8/0x4f0
[  143.897557]  [<ffffffff8159288d>] ? __schedule+0x24d/0x7c0
[  143.897580]  [<ffffffff811036c6>] ? SyS_ioctl+0x36/0x80
[  143.897602]  [<ffffffff811055f2>] ? SyS_poll+0x52/0xf0
[  143.897625]  [<ffffffff81595f36>] ? system_call_fastpath+0x16/0x1b
[  143.897650] Code: c5 28 03 00 00 48 8d 58 e8 48 39 c5 75 16 eb 47 0f 1f 80 00 00 00 00 48 8b 43 18 48 8d 58 e8 48 39 c5 74 33 48 8b 83 70 03 00 00 <4c> 39 60 08 75 e6 48 89 de 4c 89 ef e8 7b fe ff ff 48 3d 00 f0 
[  143.897838] RIP  [<ffffffffa00eff84>] drm_atomic_add_affected_connectors+0x64/0xc0 [drm]
[  143.897878]  RSP <ffff880409a93b18>
[  143.897889] CR2: 0000000000000008
[  143.918495] ---[ end trace 17ff49bc79a1a763 ]---

complete dmesg goes here: http://pastebin.com/2zgayY27

Any Ideas?

Kind regards
nkalkhof