Computer freezes/crashes while using GNOME

Bug #1511002 reported by Germán Poo-Caamaño on 2015-10-28
This bug affects 3 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)

Bug Description

I think I have two issues (may related) with the Intel driver for my graphic card. Sometimes the text is shown as garbage, and every other day (after suspending) it crashes. As I have not figure out what is the SysRq magic key is in this new laptop (Lenovo x250), I can only recover control on my computer after pressing the power off button.

I cannot go to a vt. No nothing. I hope the follow call trace is related to that, although it should not be there in any case :-)

Oct 27 14:49:33 sai kernel: [38682.963345] ------------[ cut here ]------------
Oct 27 14:49:33 sai kernel: [38682.963368] WARNING: CPU: 0 PID: 0 at /build/linux-AxjFAn/linux-4.2.0/drivers/gpu/drm/i915/intel_display.c:11100 intel_check_page_flip+0xfc/0x110 [i915]()
Oct 27 14:49:33 sai kernel: [38682.963369] Kicking stuck page flip: queued at 2122948, now 2122952
Oct 27 14:49:33 sai kernel: [38682.963370] Modules linked in: ses enclosure uas usb_storage hid_generic usbhid hid msr rfcomm pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) drbg ansi_cprng ctr ccm binfmt_misc bnep arc4 int
el_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core crct10dif_pclmul v4l2_common videodev crc32_pclmul iwlmvm snd_hda_codec_hdmi snd_hda_codec_realtek bt
usb media snd_hda_codec_generic ghash_clmulni_intel btrtl mac80211 btbcm btintel bluetooth aesni_intel snd_hda_intel aes_x86_64 snd_hda_codec lrw gf128mul snd_hda_core glue_helper snd_hwdep ablk_helper thinkpad_acpi cryptd iwlwifi snd_pcm
 nvram snd_seq_midi snd_seq_midi_event snd_rawmidi input_leds cfg80211 joydev snd_seq serio_raw rtsx_pci_ms snd_seq_device memstick snd_timer snd mei_me soundcore shpchp mei lpc_ich mac_hid parport_pc ppdev sunrpc lp parport autofs4 rtsx_
pci_sdmmc i915 psmouse i2c_algo_bit e1000e drm_kms_helper ahci libahci drm ptp rtsx_pci pps_core wmi video
Oct 27 14:49:33 sai kernel: [38682.963414] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W OE 4.2.0-16-generic #19-Ubuntu
Oct 27 14:49:33 sai kernel: [38682.963415] Hardware name: LENOVO 20CMCTO1WW/20CMCTO1WW, BIOS N10ET36W (1.15 ) 06/19/2015
Oct 27 14:49:33 sai kernel: [38682.963416] 0000000000000000 4c472c3169d69ebc ffff88022dc03d48 ffffffff817e8c09
Oct 27 14:49:33 sai kernel: [38682.963418] 0000000000000000 ffff88022dc03da0 ffff88022dc03d88 ffffffff8107b3c6
Oct 27 14:49:33 sai kernel: [38682.963420] ffff88022dc03db8 ffff8800b872d000 ffff8802201e2000 ffff8800b872d1a8
Oct 27 14:49:33 sai kernel: [38682.963421] Call Trace:
Oct 27 14:49:33 sai kernel: [38682.963422] <IRQ> [<ffffffff817e8c09>] dump_stack+0x45/0x57
Oct 27 14:49:33 sai kernel: [38682.963429] [<ffffffff8107b3c6>] warn_slowpath_common+0x86/0xc0
Oct 27 14:49:33 sai kernel: [38682.963431] [<ffffffff8107b455>] warn_slowpath_fmt+0x55/0x70
Oct 27 14:49:33 sai kernel: [38682.963443] [<ffffffffc01fdb3c>] intel_check_page_flip+0xfc/0x110 [i915]
Oct 27 14:49:33 sai kernel: [38682.963453] [<ffffffffc01c65e5>] gen8_irq_handler+0x325/0x590 [i915]
Oct 27 14:49:33 sai kernel: [38682.963456] [<ffffffff810d41d4>] handle_irq_event_percpu+0x74/0x180
Oct 27 14:49:33 sai kernel: [38682.963457] [<ffffffff810d4329>] handle_irq_event+0x49/0x70
Oct 27 14:49:33 sai kernel: [38682.963459] [<ffffffff810d76a1>] handle_edge_irq+0x81/0x150
Oct 27 14:49:33 sai kernel: [38682.963461] [<ffffffff81017295>] handle_irq+0x25/0x40
Oct 27 14:49:33 sai kernel: [38682.963463] [<ffffffff817f25ef>] do_IRQ+0x4f/0xe0
Oct 27 14:49:33 sai kernel: [38682.963465] [<ffffffff817f056b>] common_interrupt+0x6b/0x6b
Oct 27 14:49:33 sai kernel: [38682.963465] <EOI> [<ffffffff810e77a4>] ? enqueue_hrtimer+0x44/0x80
Oct 27 14:49:33 sai kernel: [38682.963469] [<ffffffff81686930>] ? cpuidle_enter_state+0x130/0x270
Oct 27 14:49:33 sai kernel: [38682.963471] [<ffffffff8168690b>] ? cpuidle_enter_state+0x10b/0x270
Oct 27 14:49:33 sai kernel: [38682.963472] [<ffffffff81686aa7>] cpuidle_enter+0x17/0x20
Oct 27 14:49:33 sai kernel: [38682.963474] [<ffffffff810bd432>] call_cpuidle+0x32/0x60
Oct 27 14:49:33 sai kernel: [38682.963475] [<ffffffff81686a83>] ? cpuidle_select+0x13/0x20
Oct 27 14:49:33 sai kernel: [38682.963476] [<ffffffff810bd6c8>] cpu_startup_entry+0x268/0x320
Oct 27 14:49:33 sai kernel: [38682.963479] [<ffffffff817dd16c>] rest_init+0x7c/0x80
Oct 27 14:49:33 sai kernel: [38682.963481] [<ffffffff81d50025>] start_kernel+0x48b/0x4ac
Oct 27 14:49:33 sai kernel: [38682.963483] [<ffffffff81d4f120>] ? early_idt_handler_array+0x120/0x120
Oct 27 14:49:33 sai kernel: [38682.963484] [<ffffffff81d4f339>] x86_64_start_reservations+0x2a/0x2c
Oct 27 14:49:33 sai kernel: [38682.963486] [<ffffffff81d4f485>] x86_64_start_kernel+0x14a/0x16d
Oct 27 14:49:33 sai kernel: [38682.963487] ---[ end trace 2d9bf7218712045a ]---

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-16-generic 4.2.0-16.19
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
 /dev/snd/controlC1: gpoo 2278 F.... pulseaudio
 /dev/snd/controlC0: gpoo 2278 F.... pulseaudio
CurrentDesktop: GNOME
Date: Wed Oct 28 08:52:31 2015
InstallationDate: Installed on 2015-04-07 (203 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Beta amd64 (20150326)
MachineType: LENOVO 20CMCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=6d7b32fc-b6c2-4bd8-8a58-fe1941d338b1 ro quiet splash vt.handoff=7
 linux-restricted-modules-4.2.0-16-generic N/A
 linux-backports-modules-4.2.0-16-generic N/A
 linux-firmware 1.149
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: Upgraded to wily on 2015-10-22 (5 days ago) 06/19/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: N10ET36W (1.15 )
dmi.board.asset.tag: Not Available 20CMCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: 20CMCTO1WW
dmi.product.version: ThinkPad X250
dmi.sys.vendor: LENOVO

Germán Poo-Caamaño (gpoo) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed


1. If this bug is a duplicate of bug #1507255, please mark it as such.
2. Anyway, set this bug status back to "confirmed".

Thank you.

Changed in linux (Ubuntu):
importance: Undecided → Critical
affects: linux (Ubuntu) → xserver-xorg-video-intel (Ubuntu)
Changed in xserver-xorg-video-intel (Ubuntu):
status: Confirmed → Incomplete
Germán Poo-Caamaño (gpoo) wrote :

I set it back to Confirmed as this bug mainly is a crash report, with a kernel stacktrace. The stacktrace may help a developer to see where the issue is.

The other bug is only about the garbage text, something I mentioned that may be related, but it may be not and just be coincidence.

Anyhow, I will test the setting suggested there (to fallback from SNA to UXA), and see whether I can get a crash report in the following days. Otherwise, I will try back to SNA and test the same again.

Changed in xserver-xorg-video-intel (Ubuntu):
status: Incomplete → Confirmed
Germán Poo-Caamaño (gpoo) wrote :

This bug seems related to

As I can reproduce it after setting the parameters to save energy using powertop.

affects: xserver-xorg-video-intel → linux
affects: xserver-xorg-video-intel (Ubuntu) → linux (Ubuntu)
tags: added: kernel-power
tags: added: xorg-needs-kernel-fix
Changed in linux (Ubuntu):
status: Confirmed → Triaged
Changed in linux (Ubuntu):
importance: Critical → Medium
importance: Medium → High
Tal Liron (emblem-parade) wrote :

Some people think it's this kernel bug, related to Intel Bay Trail:

The workaround is to boot your kernel with the following parameter:


(Add it to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, and then run update-grub).

Changed in linux:
status: Unknown → Incomplete
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