[Intel-gfx] i915 driver stack trace on laptop docking event

[Colin Kincaid Williams]

Hello,

I tried to find the appropriate place to file a bug report. On my dell
latitude e5440 when I undock and redock I am unable to re-activate
both monitors using xrandr. I'm using linux kernel 4.4.5 and the i915
driver, and also could not find the appropriate section to file a bug
report.

Can you appoint me to the appropriate section on the bug reporting
page to file the report against?

[40604.935498] ------------[ cut here ]------------

[40604.935522] WARNING: CPU: 0 PID: 524 at
drivers/gpu/drm/i915/intel_ddi.c:772
intel_ddi_get_crtc_new_encoder+0x8d/0xa0 [i915]()

[40604.935525] 2 encoders on crtc for pipe B

[40604.935526] Modules linked in: sha256_ssse3 sha256_generic hmac
drbg ansi_cprng ctr ccm tun xt_conntrack ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 xt_addrtype iptable_filter nf_nat nf_conntrack
br_netfilter bridge stp llc dm_thin_pool dm_persistent_data
dm_bio_prison dm_bufio libcrc32c crc32c_generic loop dm_mod fuse
snd_hda_codec_hdmi arc4 snd_hda_codec_realtek snd_hda_codec_generic
iTCO_wdt iTCO_vendor_support dell_wmi sparse_keymap intel_rapl ppdev
iosf_mbi dell_laptop uvcvideo videobuf2_vmalloc dcdbas
x86_pkg_temp_thermal videobuf2_memops videobuf2_v4l2 intel_powerclamp
coretemp videobuf2_core btusb kvm_intel btrtl btbcm v4l2_common
btintel bluetooth videodev dell_smm_hwmon kvm irqbypass media
crct10dif_pclmul crc32_pclmul joydev crc32c_intel

[40604.935572] mousedev aesni_intel i915 aes_x86_64 lrw gf128mul
iwlmvm glue_helper ablk_helper cryptd mac80211 drm_kms_helper
snd_hda_intel evdev input_leds snd_hda_codec mac_hid psmouse
snd_hda_core serio_raw drm iwlwifi pcspkr snd_hwdep e1000e snd_pcm
i2c_i801 intel_gtt cfg80211 syscopyarea snd_timer sysfillrect mei_me
sysimgblt snd fb_sys_fops lpc_ich shpchp soundcore mei i2c_algo_bit
ptp thermal pps_core wmi battery tpm_tis dell_rbtn parport_pc tpm
parport dell_smo8800 rfkill fjes processor button video ac
sch_fq_codel vboxnetflt(O) vboxnetadp(O) pci_stub vboxpci(O)
vboxdrv(O) ip_tables x_tables ext4 crc16 mbcache jbd2 sr_mod cdrom
sd_mod hid_generic usbhid hid atkbd libps2 ahci libahci libata
scsi_mod sdhci_pci xhci_pci ehci_pci sdhci led_class ehci_hcd xhci_hcd
mmc_core usbcore usb_common i8042

[40604.935629] serio

[40604.935633] CPU: 0 PID: 524 Comm: Xorg Tainted: G O 4.4.5-1-ARCH #1

[40604.935635] Hardware name: Dell Inc. Latitude E5440/0C4F9T, BIOS
A12 05/19/2015

[40604.935636] 0000000000000286 000000000340055a ffff88021314f970
ffffffff812cb391

[40604.935640] ffff88021314f9b8 ffffffffa0831fd0 ffff88021314f9a8
ffffffff810776e2

[40604.935642] ffff88021374b000 ffff880020070800 ffff88021374b000
ffff880214eb2a00

[40604.935645] Call Trace:

[40604.935651] [<ffffffff812cb391>] dump_stack+0x63/0x82

[40604.935656] [<ffffffff810776e2>] warn_slowpath_common+0x82/0xc0

[40604.935659] [<ffffffff8107777c>] warn_slowpath_fmt+0x5c/0x80

[40604.935674] [<ffffffffa07de30d>]
intel_ddi_get_crtc_new_encoder+0x8d/0xa0 [i915]

[40604.935685] [<ffffffffa07de991>] intel_ddi_pll_select+0x41/0x1360 [i915]

[40604.935687] [<ffffffff810bef60>] ? mutex_optimistic_spin+0x120/0x1c0

[40604.935698] [<ffffffffa07c6eed>] ?
intel_plane_atomic_calc_changes+0x4d/0x6c0 [i915]

[40604.935702] [<ffffffffa05f83db>] ?
drm_plane_helper_check_update+0xdb/0x190 [drm_kms_helper]

[40604.935715] [<ffffffffa07b0e02>] haswell_crtc_compute_clock+0x12/0x30 [i915]

[40604.935729] [<ffffffffa07be7a6>] intel_crtc_atomic_check+0x146/0x1e0 [i915]

[40604.935733] [<ffffffffa060079b>]
drm_atomic_helper_check_planes+0x14b/0x1c0 [drm_kms_helper]

[40604.935743] [<ffffffffa07c15b2>] intel_atomic_check+0x412/0x1020 [i915]

[40604.935750] [<ffffffffa052c55e>] drm_atomic_check_only+0x18e/0x590 [drm]

[40604.935754] [<ffffffffa052bdd0>] ?
drm_atomic_set_crtc_for_connector+0x20/0x90 [drm]

[40604.935759] [<ffffffffa052c977>] drm_atomic_commit+0x17/0x60 [drm]

[40604.935762] [<ffffffffa06012b6>]
drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]

[40604.935768] [<ffffffffa051b062>]
drm_mode_set_config_internal+0x62/0x100 [drm]

[40604.935774] [<ffffffffa051ff52>] drm_mode_setcrtc+0x3d2/0x4f0 [drm]

[40604.935781] [<ffffffffa05117b2>] drm_ioctl+0x152/0x540 [drm]

[40604.935786] [<ffffffffa051fb80>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]

[40604.935789] [<ffffffff811f3258>] do_vfs_ioctl+0x298/0x480

[40604.935791] [<ffffffff81083791>] ? __set_task_blocked+0x41/0xa0

[40604.935793] [<ffffffff811fd307>] ? __fget+0x77/0xb0

[40604.935795] [<ffffffff811f34b9>] SyS_ioctl+0x79/0x90

[40604.935797] [<ffffffff810862de>] ? SyS_rt_sigprocmask+0x8e/0xc0

[40604.935799] [<ffffffff815970ee>] entry_SYSCALL_64_fastpath+0x12/0x6d

[40604.935801] ---[ end trace 909344e33a4c649e ]---

[40605.031135] ------------[ cut here ]------------

[40605.031163] WARNING: CPU: 0 PID: 524 at
drivers/gpu/drm/i915/intel_display.c:6442
intel_atomic_commit+0x61e/0x1430 [i915]()

[40605.031167] attached crtc is active, but connector isn't

[40605.031168] Modules linked in: sha256_ssse3 sha256_generic hmac
drbg ansi_cprng ctr ccm tun xt_conntrack ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 xt_addrtype iptable_filter nf_nat nf_conntrack
br_netfilter bridge stp llc dm_thin_pool dm_persistent_data
dm_bio_prison dm_bufio libcrc32c crc32c_generic loop dm_mod fuse
snd_hda_codec_hdmi arc4 snd_hda_codec_realtek snd_hda_codec_generic
iTCO_wdt iTCO_vendor_support dell_wmi sparse_keymap intel_rapl ppdev
iosf_mbi dell_laptop uvcvideo videobuf2_vmalloc dcdbas
x86_pkg_temp_thermal videobuf2_memops videobuf2_v4l2 intel_powerclamp
coretemp videobuf2_core btusb kvm_intel btrtl btbcm v4l2_common
btintel bluetooth videodev dell_smm_hwmon kvm irqbypass media
crct10dif_pclmul crc32_pclmul joydev crc32c_intel

[40605.031201] mousedev aesni_intel i915 aes_x86_64 lrw gf128mul
iwlmvm glue_helper ablk_helper cryptd mac80211 drm_kms_helper
snd_hda_intel evdev input_leds snd_hda_codec mac_hid psmouse
snd_hda_core serio_raw drm iwlwifi pcspkr snd_hwdep e1000e snd_pcm
i2c_i801 intel_gtt cfg80211 syscopyarea snd_timer sysfillrect mei_me
sysimgblt snd fb_sys_fops lpc_ich shpchp soundcore mei i2c_algo_bit
ptp thermal pps_core wmi battery tpm_tis dell_rbtn parport_pc tpm
parport dell_smo8800 rfkill fjes processor button video ac
sch_fq_codel vboxnetflt(O) vboxnetadp(O) pci_stub vboxpci(O)
vboxdrv(O) ip_tables x_tables ext4 crc16 mbcache jbd2 sr_mod cdrom
sd_mod hid_generic usbhid hid atkbd libps2 ahci libahci libata
scsi_mod sdhci_pci xhci_pci ehci_pci sdhci led_class ehci_hcd xhci_hcd
mmc_core usbcore usb_common i8042

[40605.031243] serio

[40605.031246] CPU: 0 PID: 524 Comm: Xorg Tainted: G W O 4.4.5-1-ARCH #1

[40605.031247] Hardware name: Dell Inc. Latitude E5440/0C4F9T, BIOS
A12 05/19/2015

[40605.031249] 0000000000000286 000000000340055a ffff88021314fb20
ffffffff812cb391

[40605.031251] ffff88021314fb68 ffffffffa082c1c8 ffff88021314fb58
ffffffff810776e2

[40605.031253] ffff8800ba49e000 ffff880089755400 ffff880213319000
ffff88008945e400

[40605.031255] Call Trace:

[40605.031260] [<ffffffff812cb391>] dump_stack+0x63/0x82

[40605.031264] [<ffffffff810776e2>] warn_slowpath_common+0x82/0xc0

[40605.031266] [<ffffffff8107777c>] warn_slowpath_fmt+0x5c/0x80

[40605.031278] [<ffffffffa07bf82e>] intel_atomic_commit+0x61e/0x1430 [i915]

[40605.031284] [<ffffffffa052c55e>] ? drm_atomic_check_only+0x18e/0x590 [drm]

[40605.031289] [<ffffffffa052c997>] drm_atomic_commit+0x37/0x60 [drm]

[40605.031292] [<ffffffffa06012b6>]
drm_atomic_helper_set_config+0x76/0xb0 [drm_kms_helper]

[40605.031299] [<ffffffffa051b062>]
drm_mode_set_config_internal+0x62/0x100 [drm]

[40605.031304] [<ffffffffa051ff52>] drm_mode_setcrtc+0x3d2/0x4f0 [drm]

[40605.031309] [<ffffffffa05117b2>] drm_ioctl+0x152/0x540 [drm]

[40605.031314] [<ffffffffa051fb80>] ? drm_mode_setplane+0x1b0/0x1b0 [drm]

[40605.031317] [<ffffffff811f3258>] do_vfs_ioctl+0x298/0x480

[40605.031319] [<ffffffff81083791>] ? __set_task_blocked+0x41/0xa0

[40605.031321] [<ffffffff811fd307>] ? __fget+0x77/0xb0

[40605.031323] [<ffffffff811f34b9>] SyS_ioctl+0x79/0x90

[40605.031325] [<ffffffff810862de>] ? SyS_rt_sigprocmask+0x8e/0xc0

[40605.031328] [<ffffffff815970ee>] entry_SYSCALL_64_fastpath+0x12/0x6d

[40605.031329] ---[ end trace 909344e33a4c649f ]---