[Bug 103771] plane A assertion failure (expected on, current off)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=103771

--- Comment #1 from Alexander List <alex at list.priv.at> ---
The previous snippet was from rc8, same behaviour on 4.2.0 tho:

[   25.866954] ------------[ cut here ]------------
[   25.866970] WARNING: CPU: 2 PID: 1030 at
/home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:1362
assert_plane.constprop.94+0x73/0xa0 [i915]()
[   25.866971] plane A assertion failure (expected on, current off)
[   25.866991] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4
nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp
bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables
iptable_filter ip_tables x_tables cmac rfcomm bnep uas nls_iso8859_1
usb_storage input_leds joydev uvcvideo videobuf2_vmalloc hid_generic
videobuf2_memops videobuf2_core v4l2_common videodev btusb snd_usb_audio btrtl
usbhid btbcm media snd_usbmidi_lib btintel bluetooth arc4 intel_rapl iosf_mbi
x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iwlmvm
crct10dif_pclmul mac80211 crc32_pclmul ghash_clmulni_intel
snd_hda_codec_realtek snd_hda_codec_hdmi snd_soc_rt5640 snd_hda_codec_generic
aesni_intel snd_soc_rl6231
[   25.867011]  snd_soc_core aes_x86_64 lrw snd_compress iwlwifi ac97_bus
gf128mul snd_pcm_dmaengine glue_helper ablk_helper snd_hda_intel snd_seq_midi
cryptd snd_hda_codec snd_seq_midi_event snd_hda_core snd_hwdep cfg80211
serio_raw snd_pcm lpc_ich mei_me shpchp snd_rawmidi mei snd_seq snd_seq_device
snd_timer nuvoton_cir rc_core snd i2c_hid hid dw_dmac dw_dmac_core
snd_soc_sst_acpi soundcore i2c_designware_platform acpi_als 8250_dw
i2c_designware_core kfifo_buf spi_pxa2xx_platform acpi_pad industrialio mac_hid
parport_pc ppdev lp parport sunrpc autofs4 raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath
linear i915 i2c_algo_bit psmouse drm_kms_helper e1000e drm ahci libahci ptp
pps_core sdhci_acpi video sdhci
[   25.867012] CPU: 2 PID: 1030 Comm: Xorg Not tainted 4.2.0-040200-generic
#201508301530
[   25.867013] Hardware name:
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff
\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff\xffffffff/NUC5i7RYB,
BIOS RYBDWi35.86A.0246.2015.0309.1355 03/09/2015
[   25.867014]  ffffffffc025bc48 ffff880408f237b8 ffffffff817a1b43
0000000000000001
[   25.867015]  ffff880408f23808 ffff880408f237f8 ffffffff8107719a
ffff880035e00000
[   25.867016]  0000000000000000 ffff880035e00000 ffff88040c393800
ffff88040c393860
[   25.867016] Call Trace:
[   25.867020]  [<ffffffff817a1b43>] dump_stack+0x45/0x57
[   25.867022]  [<ffffffff8107719a>] warn_slowpath_common+0x8a/0xc0
[   25.867023]  [<ffffffff81077216>] warn_slowpath_fmt+0x46/0x50
[   25.867034]  [<ffffffffc01f29e3>] assert_plane.constprop.94+0x73/0xa0 [i915]
[   25.867043]  [<ffffffffc01fc9e1>] hsw_disable_ips+0x41/0x180 [i915]
[   25.867051]  [<ffffffffc01fcb7d>] intel_pre_disable_primary+0x5d/0x90 [i915]
[   25.867059]  [<ffffffffc01fcbf8>] intel_crtc_disable_planes+0x48/0x110
[i915]
[   25.867067]  [<ffffffffc01fd541>] __intel_set_mode+0x251/0xb10 [i915]
[   25.867075]  [<ffffffffc01ff0b2>] ? intel_modeset_compute_config+0x362/0xb60
[i915]
[   25.867083]  [<ffffffffc0204886>] intel_crtc_set_config+0x366/0x5a0 [i915]
[   25.867092]  [<ffffffffc00803e8>] drm_mode_set_config_internal+0x68/0x100
[drm]
[   25.867095]  [<ffffffffc013ee42>] restore_fbdev_mode+0xc2/0xf0
[drm_kms_helper]
[   25.867098]  [<ffffffffc0140c19>]
drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x70 [drm_kms_helper]
[   25.867101]  [<ffffffffc0140c82>] drm_fb_helper_set_par+0x22/0x40
[drm_kms_helper]
[   25.867109]  [<ffffffffc0211a3a>] intel_fbdev_set_par+0x1a/0x60 [i915]
[   25.867112]  [<ffffffff812bad66>] ? jbd2_journal_dirty_metadata+0xb6/0x250
[   25.867114]  [<ffffffff81413a71>] fb_set_var+0x191/0x400
[   25.867115]  [<ffffffff8129fa01>] ? __ext4_handle_dirty_metadata+0x81/0x210
[   25.867117]  [<ffffffff8140adcc>] fbcon_blank+0x1bc/0x2b0
[   25.867119]  [<ffffffff8149a3d8>] do_unblank_screen+0xb8/0x1c0
[   25.867121]  [<ffffffff814918b3>] vt_ioctl+0x1063/0x10e0
[   25.867123]  [<ffffffff8179e7a8>] ? __slab_free+0x104/0x25c
[   25.867125]  [<ffffffff814847a7>] tty_ioctl+0x1f7/0xbe0
[   25.867127]  [<ffffffff81198671>] ? kzfree+0x31/0x40
[   25.867128]  [<ffffffff811cbc58>] ? kfree+0xf8/0x130
[   25.867130]  [<ffffffff811fc62d>] do_vfs_ioctl+0x2cd/0x4b0
[   25.867131]  [<ffffffff81208df4>] ? mntput+0x24/0x40
[   25.867133]  [<ffffffff811eb4d0>] ? __fput+0x190/0x210
[   25.867134]  [<ffffffff811fc889>] SyS_ioctl+0x79/0x90
[   25.867135]  [<ffffffff817a8e32>] entry_SYSCALL_64_fastpath+0x16/0x75
[   25.867136] ---[ end trace c6b6cf80ff58f9ce ]---

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