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[Bug 1586373] [NEW] drm_wait_one_vblank+0x17b/0x1c0

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Public bug reported:

Hi,

I'm using a new Skylake Thinkpad T460s with and external monitor
connected via Displayport and Ubuntu 16.04, fully up to date and kernel
Running kernel 4.6.0-040600rc7-generic from http://kernel.ubuntu.com
/~kernel-ppa/mainline/ which resolved other more serious issues I've had
with the i915 driver.

The issue below appears to happen when I switch to text console and back
to X.   Other than the kernel messages there doesn't appear to be an
actual problem.

[1418463.728144] ------------[ cut here ]------------
[1418463.728199] WARNING: CPU: 2 PID: 1117 at /home/kernel/COD/linux/drivers/gpu/drm/drm_irq.c:1317 drm_wait_one_vblank+0x17b/0x1c0 [drm]
[1418463.728202] vblank not available on crtc 0, ret=-22
[1418463.728291] Modules linked in: uas usb_storage btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c drbg ansi_cprng ctr ccm md4 nls_utf8 cifs fscache mmc_block msr acpi_call(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media snd_usb_audio snd_usbmidi_lib btusb btrtl btbcm btintel bluetooth binfmt_misc nls_iso8859_1 arc4 snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc iwlmvm snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_hda_codec_realtek snd_soc_sst_match snd_hda_codec_generic mac80211 snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine dw_dmac_core iwlwifi snd_hda_intel snd_hda_codec intel_rapl snd_hda_core x86_pkg_temp_thermal cfg80211 intel_powerclamp coretemp
[1418463.728367]  snd_hwdep joydev input_leds serio_raw snd_pcm rtsx_pci_ms memstick thinkpad_acpi nvram mei_me snd_seq_midi mei snd_seq_midi_event shpchp snd_rawmidi intel_pch_thermal snd_seq snd_seq_device snd_timer snd soundcore tpm_crb mac_hid kvm_intel kvm irqbypass parport_pc ppdev lp parport autofs4 algif_skcipher af_alg dm_crypt hid_generic hid_microsoft usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel i915 nvme aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper e1000e syscopyarea psmouse sysfillrect sysimgblt ptp fb_sys_fops pps_core nvme_core drm rtsx_pci wmi video fjes
[1418463.728375] CPU: 2 PID: 1117 Comm: Xorg Tainted: G        W  OE   4.6.0-040600rc7-generic #201605081830
[1418463.728377] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET40W (1.08 ) 03/09/2016
[1418463.728386]  0000000000000286 000000003e515057 ffff880502d43820 ffffffff813f2ea3
[1418463.728392]  ffff880502d43870 0000000000000000 ffff880502d43860 ffffffff8108294b
[1418463.728397]  0000052500000000 ffff88003546e800 0000000000000000 ffff880502904c00
[1418463.728399] Call Trace:
[1418463.728411]  [<ffffffff813f2ea3>] dump_stack+0x63/0x90
[1418463.728420]  [<ffffffff8108294b>] __warn+0xcb/0xf0
[1418463.728427]  [<ffffffff810829cf>] warn_slowpath_fmt+0x5f/0x80
[1418463.728470]  [<ffffffffc0059754>] ? drm_vblank_get+0x74/0xc0 [drm]
[1418463.728511]  [<ffffffffc00599ab>] drm_wait_one_vblank+0x17b/0x1c0 [drm]
[1418463.728603]  [<ffffffffc0252220>] ? chv_write64+0x370/0x370 [i915]
[1418463.728670]  [<ffffffffc0204bd5>] skl_update_wm+0x515/0x640 [i915]
[1418463.728735]  [<ffffffffc020860e>] intel_update_watermarks+0x1e/0x30 [i915]
[1418463.728821]  [<ffffffffc0274821>] haswell_crtc_enable+0x321/0x8c0 [i915]
[1418463.728904]  [<ffffffffc02711bb>] intel_atomic_commit+0x5fb/0xdd0 [i915]
[1418463.728966]  [<ffffffffc0072c31>] ? drm_atomic_check_only+0x181/0x600 [drm]
[1418463.729026]  [<ffffffffc00730e7>] drm_atomic_commit+0x37/0x60 [drm]
[1418463.729056]  [<ffffffffc0175cfe>] drm_fb_helper_pan_display+0x1de/0x240 [drm_kms_helper]
[1418463.729137]  [<ffffffffc0286dea>] intel_fbdev_pan_display+0x1a/0x60 [i915]
[1418463.729145]  [<ffffffff81479c8f>] fb_pan_display+0xcf/0x160
[1418463.729151]  [<ffffffff81473e20>] bit_update_start+0x20/0x50
[1418463.729156]  [<ffffffff81470f00>] fbcon_switch+0x3b0/0x640
[1418463.729165]  [<ffffffff815068d7>] redraw_screen+0x177/0x240
[1418463.729173]  [<ffffffff814fd44f>] complete_change_console+0x3f/0xe0
[1418463.729179]  [<ffffffff814fdc00>] vt_ioctl+0x710/0x12f0
[1418463.729186]  [<ffffffff814f1d1f>] tty_ioctl+0x35f/0xc80
[1418463.729194]  [<ffffffff81237721>] do_vfs_ioctl+0xa1/0x5b0
[1418463.729202]  [<ffffffff8106bc15>] ? __do_page_fault+0x205/0x4d0
[1418463.729207]  [<ffffffff81237ca9>] SyS_ioctl+0x79/0x90
[1418463.729215]  [<ffffffff81845476>] entry_SYSCALL_64_fastpath+0x1e/0xa8
[1418463.729307] ---[ end trace 18c4708a5d4e21da ]---
[1418463.781572] ------------[ cut here ]------------

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1586373

Title:
  drm_wait_one_vblank+0x17b/0x1c0

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,

  I'm using a new Skylake Thinkpad T460s with and external monitor
  connected via Displayport and Ubuntu 16.04, fully up to date and
  kernel Running kernel 4.6.0-040600rc7-generic from
  http://kernel.ubuntu.com/~kernel-ppa/mainline/ which resolved other
  more serious issues I've had with the i915 driver.

  The issue below appears to happen when I switch to text console and
  back to X.   Other than the kernel messages there doesn't appear to be
  an actual problem.

  [1418463.728144] ------------[ cut here ]------------
  [1418463.728199] WARNING: CPU: 2 PID: 1117 at /home/kernel/COD/linux/drivers/gpu/drm/drm_irq.c:1317 drm_wait_one_vblank+0x17b/0x1c0 [drm]
  [1418463.728202] vblank not available on crtc 0, ret=-22
  [1418463.728291] Modules linked in: uas usb_storage btrfs xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c drbg ansi_cprng ctr ccm md4 nls_utf8 cifs fscache mmc_block msr acpi_call(OE) pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core videodev media snd_usb_audio snd_usbmidi_lib btusb btrtl btbcm btintel bluetooth binfmt_misc nls_iso8859_1 arc4 snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc iwlmvm snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_hda_codec_realtek snd_soc_sst_match snd_hda_codec_generic mac80211 snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine dw_dmac_core iwlwifi snd_hda_intel snd_hda_codec intel_rapl snd_hda_core x86_pkg_temp_thermal cfg80211 intel_powerclamp coretemp
  [1418463.728367]  snd_hwdep joydev input_leds serio_raw snd_pcm rtsx_pci_ms memstick thinkpad_acpi nvram mei_me snd_seq_midi mei snd_seq_midi_event shpchp snd_rawmidi intel_pch_thermal snd_seq snd_seq_device snd_timer snd soundcore tpm_crb mac_hid kvm_intel kvm irqbypass parport_pc ppdev lp parport autofs4 algif_skcipher af_alg dm_crypt hid_generic hid_microsoft usbhid hid rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel i915 nvme aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper e1000e syscopyarea psmouse sysfillrect sysimgblt ptp fb_sys_fops pps_core nvme_core drm rtsx_pci wmi video fjes
  [1418463.728375] CPU: 2 PID: 1117 Comm: Xorg Tainted: G        W  OE   4.6.0-040600rc7-generic #201605081830
  [1418463.728377] Hardware name: LENOVO 20F9CTO1WW/20F9CTO1WW, BIOS N1CET40W (1.08 ) 03/09/2016
  [1418463.728386]  0000000000000286 000000003e515057 ffff880502d43820 ffffffff813f2ea3
  [1418463.728392]  ffff880502d43870 0000000000000000 ffff880502d43860 ffffffff8108294b
  [1418463.728397]  0000052500000000 ffff88003546e800 0000000000000000 ffff880502904c00
  [1418463.728399] Call Trace:
  [1418463.728411]  [<ffffffff813f2ea3>] dump_stack+0x63/0x90
  [1418463.728420]  [<ffffffff8108294b>] __warn+0xcb/0xf0
  [1418463.728427]  [<ffffffff810829cf>] warn_slowpath_fmt+0x5f/0x80
  [1418463.728470]  [<ffffffffc0059754>] ? drm_vblank_get+0x74/0xc0 [drm]
  [1418463.728511]  [<ffffffffc00599ab>] drm_wait_one_vblank+0x17b/0x1c0 [drm]
  [1418463.728603]  [<ffffffffc0252220>] ? chv_write64+0x370/0x370 [i915]
  [1418463.728670]  [<ffffffffc0204bd5>] skl_update_wm+0x515/0x640 [i915]
  [1418463.728735]  [<ffffffffc020860e>] intel_update_watermarks+0x1e/0x30 [i915]
  [1418463.728821]  [<ffffffffc0274821>] haswell_crtc_enable+0x321/0x8c0 [i915]
  [1418463.728904]  [<ffffffffc02711bb>] intel_atomic_commit+0x5fb/0xdd0 [i915]
  [1418463.728966]  [<ffffffffc0072c31>] ? drm_atomic_check_only+0x181/0x600 [drm]
  [1418463.729026]  [<ffffffffc00730e7>] drm_atomic_commit+0x37/0x60 [drm]
  [1418463.729056]  [<ffffffffc0175cfe>] drm_fb_helper_pan_display+0x1de/0x240 [drm_kms_helper]
  [1418463.729137]  [<ffffffffc0286dea>] intel_fbdev_pan_display+0x1a/0x60 [i915]
  [1418463.729145]  [<ffffffff81479c8f>] fb_pan_display+0xcf/0x160
  [1418463.729151]  [<ffffffff81473e20>] bit_update_start+0x20/0x50
  [1418463.729156]  [<ffffffff81470f00>] fbcon_switch+0x3b0/0x640
  [1418463.729165]  [<ffffffff815068d7>] redraw_screen+0x177/0x240
  [1418463.729173]  [<ffffffff814fd44f>] complete_change_console+0x3f/0xe0
  [1418463.729179]  [<ffffffff814fdc00>] vt_ioctl+0x710/0x12f0
  [1418463.729186]  [<ffffffff814f1d1f>] tty_ioctl+0x35f/0xc80
  [1418463.729194]  [<ffffffff81237721>] do_vfs_ioctl+0xa1/0x5b0
  [1418463.729202]  [<ffffffff8106bc15>] ? __do_page_fault+0x205/0x4d0
  [1418463.729207]  [<ffffffff81237ca9>] SyS_ioctl+0x79/0x90
  [1418463.729215]  [<ffffffff81845476>] entry_SYSCALL_64_fastpath+0x1e/0xa8
  [1418463.729307] ---[ end trace 18c4708a5d4e21da ]---
  [1418463.781572] ------------[ cut here ]------------

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