[Bug 97923] [SKL] WARNING: CPU: 2 PID: 1526 at drivers/gpu/drm/i915/intel_display.c:13554 intel_atomic_commit+0x1397/0x1450 [i915]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97923

--- Comment #2 from GermanK <germank at gmail.com> ---
I have the same error on Linux 4.7.6-1, with a different effect. After it, the
laptop behaves in a very strange way where it only seems to process system
events while I move the mouse cursor.

Here's the log:
Oct 15 10:25:25 precious kernel: ------------[ cut here ]------------
Oct 15 10:25:25 precious kernel: WARNING: CPU: 2 PID: 463 at
drivers/gpu/drm/i915/intel_display.c:13554 intel_atomic_commit+0x13af/0x1460
[i915]
Oct 15 10:25:25 precious kernel: pipe A vblank wait timed out
Oct 15 10:25:25 precious kernel: Modules linked in: sha256_ssse3 sha256_generic
hmac drbg ansi_cprng ctr ccm cmac rfcomm bnep uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_v4l2 video
Oct 15 10:25:25 precious kernel:  snd_soc_ssm4567 snd_soc_rl6347a snd_soc_core
elan_i2c snd_compress snd_pcm_dmaengine ac97_bus i2c_hid hid snd_hda_intel
intel_pch_thermal snd_hda_codec i2c_
Oct 15 10:25:25 precious kernel:  libps2 ahci libahci libata xhci_pci xhci_hcd
scsi_mod rtsx_pci usbcore usb_common i8042 serio sdhci_acpi sdhci led_class
mmc_core i915 video button i2c_algo
Oct 15 10:25:25 precious kernel: CPU: 2 PID: 463 Comm: Xorg Tainted: G        W
 O    4.7.6-1-ARCH #1
Oct 15 10:25:25 precious kernel: Hardware name: Dell Inc. XPS 13 9343/0TM99H,
BIOS A09 08/29/2016
Oct 15 10:25:25 precious kernel:  0000000000000286 0000000040c264cd
ffff8800d868bac8 ffffffff812ecc92
Oct 15 10:25:25 precious kernel:  ffff8800d868bb18 0000000000000000
ffff8800d868bb08 ffffffff8107a44b
Oct 15 10:25:25 precious kernel:  000034f200000282 ffff88021535a000
0000000000000000 0000000000000000
Oct 15 10:25:25 precious kernel: Call Trace:
Oct 15 10:25:25 precious kernel:  [<ffffffff812ecc92>] dump_stack+0x63/0x81
Oct 15 10:25:25 precious kernel:  [<ffffffff8107a44b>] __warn+0xcb/0xf0
Oct 15 10:25:25 precious kernel:  [<ffffffff8107a4cf>]
warn_slowpath_fmt+0x5f/0x80
Oct 15 10:25:25 precious kernel:  [<ffffffff810bc8b5>] ? finish_wait+0x55/0x70
Oct 15 10:25:25 precious kernel:  [<ffffffffa016986f>]
intel_atomic_commit+0x13af/0x1460 [i915]
Oct 15 10:25:25 precious kernel:  [<ffffffff811da1b1>] ?
__kmalloc_track_caller+0x31/0x240
Oct 15 10:25:25 precious kernel:  [<ffffffff810bcd60>] ?
wake_atomic_t_function+0x60/0x60
Oct 15 10:25:25 precious kernel:  [<ffffffffa0033f57>]
drm_atomic_commit+0x37/0x60 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa00a5acc>]
drm_atomic_helper_disable_plane+0xac/0xf0 [drm_kms_helper]
Oct 15 10:25:25 precious kernel:  [<ffffffffa00327e5>] ?
drm_modeset_lock+0x35/0xe0 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa002300b>]
__setplane_internal+0x17b/0x260 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa0032b14>] ?
drm_modeset_lock_all_ctx+0xa4/0xb0 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa0026bcc>]
drm_mode_setplane+0x15c/0x1d0 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa00189a2>] drm_ioctl+0x152/0x540
[drm]
Oct 15 10:25:25 precious kernel:  [<ffffffffa0026a70>] ?
drm_plane_check_pixel_format+0x50/0x50 [drm]
Oct 15 10:25:25 precious kernel:  [<ffffffff81211a51>] ?
__dentry_kill+0x181/0x220
Oct 15 10:25:25 precious kernel:  [<ffffffff8121ac3c>] ?
mntput_no_expire+0x2c/0x1b0
Oct 15 10:25:25 precious kernel:  [<ffffffff8120cee2>] do_vfs_ioctl+0xa2/0x5d0
Oct 15 10:25:25 precious kernel:  [<ffffffff8108699b>] ?
recalc_sigpending+0x1b/0x50
Oct 15 10:25:25 precious kernel:  [<ffffffff810874f1>] ?
__set_task_blocked+0x41/0xa0
Oct 15 10:25:25 precious kernel:  [<ffffffff81217f77>] ? __fget+0x77/0xb0
Oct 15 10:25:25 precious kernel:  [<ffffffff8120d489>] SyS_ioctl+0x79/0x90
Oct 15 10:25:25 precious kernel:  [<ffffffff8108a054>] ?
SyS_rt_sigprocmask+0x74/0xc0
Oct 15 10:25:25 precious kernel:  [<ffffffff815d74b2>]
entry_SYSCALL_64_fastpath+0x1a/0xa4
Oct 15 10:25:25 precious kernel: ---[ end trace 22f0c9988a36fbc3 ]---
Oct 15 10:25:25 precious kernel: [drm:intel_cpu_fifo_underrun_irq_handler
[i915]] *ERROR* CPU pipe A FIFO underrun


uname -a
Linux precious 4.7.6-1-ARCH #1 SMP PREEMPT Fri Sep 30 19:28:42 CEST 2016 x86_64
GNU/Linux

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