Message-ID: <20161229165829.GA3998@yuu>
Date:   Thu, 29 Dec 2016 17:58:29 +0100
From:   Matthias Beyer <mail@...ermatthias.de>
To:     linux-kernel@...r.kernel.org
Subject: [BUG?] Freeze after trying to switch TTY?

Hi,

I experience a weird behaviour after upgrading to Kernel 4.9 and
trying to switch TTYs. My machine instantly freezes, after some
seconds (about 5 to 10) everything works again, then it freezes
again... and so on.

I'm not sure whether this is a kernel issue or X-Server, but as no TTY 
login prompt pops up I guess it must be a kernel issue.

Here is what I have found out via `journalctl`:


    Dez 29 14:33:14 yuu kernel: ------------[ cut here ]------------
    Dez 29 14:33:14 yuu kernel: WARNING: CPU: 0 PID: 917 at /tmp/nix-build-linux-4.9.drv-0/linux-4.9/drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xff4/0x1000 [i915]
    Dez 29 14:33:14 yuu kernel: pipe A vblank wait timed out
    Dez 29 14:33:14 yuu kernel: Modules linked in: ctr ccm af_packet msr mousedev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic nf_conntrack_ipv6 nf_defrag_ipv6 mei_wdt nf_conntrack_ipv4 i915 nf_defrag_ipv4 x86_p
    Dez 29 14:33:14 yuu kernel:  intel_gtt agpgart snd_hda_codec i2c_algo_bit fb_sys_fops thinkpad_acpi syscopyarea sysfillrect sysimgblt e1000e mei_me i2c_core fjes snd_hda_core nvram battery ip6table_filter rfkill snd_hwdep led_
    Dez 29 14:33:14 yuu kernel: CPU: 0 PID: 917 Comm: X Not tainted 4.9.0 #1-NixOS
    Dez 29 14:33:14 yuu kernel: Hardware name: LENOVO 4290A11/4290A11, BIOS 8DET66WW (1.36 ) 10/22/2012
    Dez 29 14:33:14 yuu kernel:  ffffa1cf02027850 ffffffffab2f3ae3 ffffa1cf020278a0 0000000000000000
    Dez 29 14:33:14 yuu kernel:  ffffa1cf02027890 ffffffffab06f30b 0000376dde20fdc0 0000000000000000
    Dez 29 14:33:14 yuu kernel:  0000000000000000 0000000000000000 0000000000000001 ffff939ec4be7000
    Dez 29 14:33:14 yuu kernel: Call Trace:
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab2f3ae3>] dump_stack+0x63/0x90
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab06f30b>] __warn+0xcb/0xf0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab06f37f>] warn_slowpath_fmt+0x4f/0x60
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab0ad056>] ? finish_wait+0x56/0x70
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0d81494>] intel_atomic_commit_tail+0xff4/0x1000 [i915]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab0ad3a0>] ? wake_atomic_t_function+0x60/0x60
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0d817fb>] intel_atomic_commit+0x35b/0x4c0 [i915]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0935707>] ? drm_atomic_add_affected_connectors+0x57/0xf0 [drm]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0935229>] drm_atomic_commit+0x49/0x50 [drm]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc097191c>] restore_fbdev_mode+0x14c/0x260 [drm_kms_helper]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0973573>] drm_fb_helper_restore_fbdev_mode_unlocked+0x33/0x80 [drm_kms_helper]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc09735ed>] drm_fb_helper_set_par+0x2d/0x60 [drm_kms_helper]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffc0d9b3c8>] intel_fbdev_set_par+0x18/0x70 [i915]
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab369828>] fb_set_var+0x238/0x460
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab097c5b>] ? check_preempt_curr+0x7b/0x90
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab35fe19>] fbcon_blank+0x2e9/0x330
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab3ed343>] do_unblank_screen+0xd3/0x1a0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab3e2dd9>] complete_change_console+0x59/0xe0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab3e354e>] vt_ioctl+0x6ee/0x12a0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab1696d3>] ? unlock_page+0x33/0x40
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab3d79ea>] tty_ioctl+0x35a/0xc70
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab19f6c0>] ? handle_mm_fault+0x820/0x10d0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab1e8708>] ? __vfs_write+0x28/0x120
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab1fd282>] do_vfs_ioctl+0x92/0x5a0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab05def7>] ? __do_page_fault+0x287/0x4b0
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab1fd809>] SyS_ioctl+0x79/0x90
    Dez 29 14:33:14 yuu kernel:  [<ffffffffab55d8b7>] entry_SYSCALL_64_fastpath+0x1a/0xa9
    Dez 29 14:33:14 yuu kernel: ---[ end trace e27a86fb3dfb03e6 ]---
    Dez 29 14:33:14 yuu kernel: [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:26:pipe A] flip_done timed out
    Dez 29 14:33:14 yuu kernel: [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:26:pipe A] flip_done timed out
    Dez 29 14:33:14 yuu kernel: [drm:drm_atomic_helper_commit_cleanup_done [drm_kms_helper]] *ERROR* [CRTC:26:pipe A] flip_done timed out

And some more here:

    Dez 29 14:36:39 yuu xsession[937]: [4739:4739:1229/143639:ERROR:zygote_communication_linux.cc(292)] Failed to send GetTerminationStatus message to zygote
    Dez 29 14:36:39 yuu xsession[937]: [4739:4739:1229/143639:ERROR:zygote_communication_linux.cc(292)] Failed to send GetTerminationStatus message to zygote
    Dez 29 14:36:39 yuu kernel: ------------[ cut here ]------------
    Dez 29 14:36:39 yuu kernel: WARNING: CPU: 0 PID: 917 at /tmp/nix-build-linux-4.9.drv-0/linux-4.9/drivers/gpu/drm/i915/intel_display.c:14189 intel_atomic_commit_tail+0xff4/0x1000 [i915]
    Dez 29 14:36:39 yuu kernel: pipe A vblank wait timed out
    Dez 29 14:36:39 yuu kernel: Modules linked in: ctr ccm af_packet msr mousedev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic nf_conntrack_ipv6 nf_defrag_ipv6 mei_wdt nf_conntrack_ipv4 i915 nf_defrag_ipv4 x86_p
    Dez 29 14:36:39 yuu kernel:  intel_gtt agpgart snd_hda_codec i2c_algo_bit fb_sys_fops thinkpad_acpi syscopyarea sysfillrect sysimgblt e1000e mei_me i2c_core fjes snd_hda_core nvram battery ip6table_filter rfkill snd_hwdep led_
    Dez 29 14:36:39 yuu kernel: CPU: 0 PID: 917 Comm: X Tainted: G        W       4.9.0 #1-NixOS
    Dez 29 14:36:39 yuu kernel: Hardware name: LENOVO 4290A11/4290A11, BIOS 8DET66WW (1.36 ) 10/22/2012
    Dez 29 14:36:39 yuu kernel:  ffffa1cf02027a70 ffffffffab2f3ae3 ffffa1cf02027ac0 0000000000000000
    Dez 29 14:36:39 yuu kernel:  ffffa1cf02027ab0 ffffffffab06f30b 0000376dde20fdc0 0000000000000000
    Dez 29 14:36:39 yuu kernel:  0000000000000000 0000000000000000 0000000000000001 ffff939ec4be7000
    Dez 29 14:36:39 yuu kernel: Call Trace:
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab2f3ae3>] dump_stack+0x63/0x90
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab06f30b>] __warn+0xcb/0xf0
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab06f37f>] warn_slowpath_fmt+0x4f/0x60
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab0ad056>] ? finish_wait+0x56/0x70
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc0d81494>] intel_atomic_commit_tail+0xff4/0x1000 [i915]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab55abe2>] ? mutex_lock+0x12/0x30
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab1cbc41>] ? kmem_cache_alloc_trace+0x1a1/0x1c0
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab0ad3a0>] ? wake_atomic_t_function+0x60/0x60
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc0d817fb>] intel_atomic_commit+0x35b/0x4c0 [i915]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc0935229>] drm_atomic_commit+0x49/0x50 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc096f70c>] drm_atomic_helper_disable_plane+0xac/0xf0 [drm_kms_helper]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc093b605>] __setplane_internal+0x215/0x260 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc093409a>] ? drm_modeset_lock_all_ctx+0x9a/0xb0 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc093c154>] drm_mode_setplane+0x134/0x1a0 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc0920cd6>] drm_ioctl+0x1f6/0x4a0 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffc093c020>] ? drm_plane_check_pixel_format+0x50/0x50 [drm]
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab201400>] ? __dentry_kill+0x110/0x160
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab201664>] ? dput+0x214/0x250
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab1fd282>] do_vfs_ioctl+0x92/0x5a0
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab07bb1b>] ? recalc_sigpending+0x1b/0x50
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab07c8bd>] ? __set_task_blocked+0x2d/0x70
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab08c853>] ? task_work_run+0x83/0xa0
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab1fd809>] SyS_ioctl+0x79/0x90
    Dez 29 14:36:39 yuu kernel:  [<ffffffffab55d8b7>] entry_SYSCALL_64_fastpath+0x1a/0xa9
    Dez 29 14:36:39 yuu kernel: ---[ end trace e27a86fb3dfb03e8 ]---
    Dez 29 14:36:39 yuu xsession[937]: [4739:4739:1229/143639:ERROR:zygote_communication_linux.cc(292)] Failed to send GetTerminationStatus message to zygote
    Dez 29 14:36:39 yuu xsession[937]: [4739:4752:1229/143639:FATAL:bus.cc(1197)] D-Bus connection was disconnected. Aborting.
    Dez 29 14:36:39 yuu xsession[937]: #0 0x561ddf40657e base::debug::StackTrace::StackTrace()
    Dez 29 14:36:39 yuu xsession[937]: #1 0x561ddf41ef1e logging::LogMessage::~LogMessage()
    Dez 29 14:36:39 yuu xsession[937]: #2 0x561de007e430 dbus::Bus::OnConnectionDisconnectedFilter()
    Dez 29 14:36:39 yuu xsession[937]: #3 0x561de007e483 dbus::Bus::OnConnectionDisconnectedFilter()
    Dez 29 14:36:39 yuu xsession[937]: #4 0x7f43f1fa7dc5 dbus_connection_dispatch
    Dez 29 14:36:39 yuu xsession[937]: #5 0x561de007e6f9 dbus::Bus::ProcessAllIncomingDataIfAny()
    Dez 29 14:36:39 yuu xsession[937]: #6 0x561ddf48f7fb base::debug::TaskAnnotator::RunTask()
    Dez 29 14:36:39 yuu xsession[937]: #7 0x561ddf427468 base::MessageLoop::RunTask()
    Dez 29 14:36:39 yuu xsession[937]: #8 0x561ddf428d8d base::MessageLoop::DeferOrRunPendingTask()
    Dez 29 14:36:39 yuu xsession[937]: #9 0x561ddf42927d base::MessageLoop::DoWork()
    Dez 29 14:36:39 yuu xsession[937]: #10 0x561ddf42a650 base::MessagePumpLibevent::Run()
    Dez 29 14:36:39 yuu xsession[937]: #11 0x561ddf448454 base::RunLoop::Run()
    Dez 29 14:36:39 yuu xsession[937]: #12 0x561ddf465e36 base::Thread::ThreadMain()
    Dez 29 14:36:39 yuu xsession[937]: #13 0x561ddf461bad base::(anonymous namespace)::ThreadFunc()
    Dez 29 14:36:39 yuu xsession[937]: #14 0x7f43f5ea91f4 start_thread
    Dez 29 14:36:39 yuu xsession[937]: #15 0x7f43eec4812f __GI___clone

Information about my system:

    * Thinkpad X220
    * Linux yuu 4.9.0 #1-NixOS SMP Sun Dec 11 19:17:54 UTC 2016 x86_64 GNU/Linux

    NixOS version information (if you need this at all):

    * System: 17.03pre97792.c311871 (Gorilla)
    * Nix version: nix-env (Nix) 1.11.4
    * Nixpkgs version: "17.03pre97792.c311871"

Feel free to ask for more information if you need it - but please tell
me how to get it, too!

The issue was also reported here:

    https://github.com/NixOS/nixpkgs/issues/21497

I'm not sure which "intel related mailinglist" I should post this to,
so if someone could tell me that'd be great.

I did _not_ verify that this issue is new for me because of the
upgrade to Linux kernel 4.9 or whether it is also present in 4.8
kernels!

-- 
Mit freundlichen Grüßen,
Kind regards,
Matthias Beyer

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