misko, the next step is to fully commit bisect from kernel 4.4 to 4.8 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ?
Please note, finding adjacent kernel versions is not fully commit bisecting. Also, the kernel release names are irrelevant for the purposes of bisecting. It is most helpful that after the fix commit (not kernel version) has been identified, you then mark this report Status Confirmed. Thank you for your help. ** Tags removed: kernel-bug-exists-upstream-4.9-rc8 ** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.9 needs-bisect -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1647048 Title: System freezes after login (NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s) Status in linux package in Ubuntu: Incomplete Bug description: Since I updated to kubuntu 16.10 I quite often have the situation that my laptop completely freezes after login in sddm (that means: while KDE is loading). During that time: - Fans run high - laptop is completely unuseable (no mouse or keyboard-input accepted, can't switch to other terminal, etc ...) - only a long press to the power-button helps . - network-connections break (tried to monitor the system remotely, but when the error occurs, also the ssh-connection fails) - the kern.log stops and contains only a few lines of rubbish: Dec 3 11:01:37 orbit kernel: [ 18.951805] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM Dec 3 11:01:37 orbit kernel: [ 18.951808] ACPI Warning: \_SB.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20160422/nsarguments-95) Dec 3 11:01:37 orbit kernel: [ 18.951891] nouveau 0000:01:00.0: DRM: suspending console... Dec 3 11:01:37 orbit kernel: [ 18.951894] nouveau 0000:01:00.0: DRM: suspending display... Dec 3 11:01:37 orbit kernel: [ 18.951902] nouveau 0000:01:00.0: DRM: evicting buffers... Dec 3 11:01:37 orbit kernel: [ 18.960908] nouveau 0000:01:00.0: DRM: waiting for kernel channels to go idle... Dec 3 11:01:37 orbit kernel: [ 18.960935] nouveau 0000:01:00.0: DRM: suspending client object trees... Dec 3 11:01:37 orbit kernel: [ 18.961192] nouveau 0000:01:00.0: DRM: suspending kernel object tree... ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ... - installed and tested kernel-crashdump, but in this situation it is not triggered (or fails to write a coredump) - (once I tried to leave the machin alone for about 30 min, it does not recover...) As a last resort, I installed netconsole and captured the kernel.log on a remote machine, this revealed, that during the lookup, following "soft lockups" occur: [ 107.926161] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 107.926172] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 135.919531] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 135.919536] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 159.917848] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [systemd-timesyn:502] [ 159.917853] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 163.912901] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 163.912904] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 187.911218] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [systemd-timesyn:502] [ 187.911221] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm[ 191.906272] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [baloo_file:2491] [ 191.906275] Modules linked in: vmnet(OE) vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) ccm rfcomm bnep joydev acer_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw glue_helper ablk_helper cryptd intel_cstate arc4 intel_rapl_perf ath9k ath9k_common ath9k_hw ath input_leds mac80211 uvcvideo serio_raw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 ath3k videobuf2_core btusb btrtl videodev btbcm rtsx_pci_ms btintel cfg80211 media snd_hda_codec_realtek bluetooth snd_hda_codec_generic lpc_ich memstick snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_seq_midi snd_pcm The issue occurs approx. every 3-4 logins, regardless whether it's a fersh startup, or if i logged out before/change user. WORKAROUND: Add this line to modprobe-settings: options snd-hda-intel enable=1,0 --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: misko 1761 F.... pulseaudio /dev/snd/controlC0: misko 1761 F.... pulseaudio CurrentDesktop: KDE DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=63876c7b-49f9-44df-9fdb-86f3dd1557a1 InstallationDate: Installed on 2016-06-09 (176 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Acer TravelMate 8481TG Package: linux (not installed) ProcFB: 0 inteldrmfb 1 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-28-generic root=UUID=f65e0ccb-17e7-48a8-93ea-f130239d4aa0 ro noprompt debug ignore_loglevel crashkernel=384M-:128M ProcVersionSignature: Ubuntu 4.8.0-28.30-generic 4.8.6 RelatedPackageVersions: linux-restricted-modules-4.8.0-28-generic N/A linux-backports-modules-4.8.0-28-generic N/A linux-firmware 1.161 Tags: yakkety Uname: Linux 4.8.0-28-generic x86_64 UpgradeStatus: Upgraded to yakkety on 2016-11-22 (10 days ago) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo wireshark _MarkForUpload: True dmi.bios.date: 11/28/2012 dmi.bios.vendor: Acer dmi.bios.version: V1.16 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: BA41_HS dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.16 dmi.modalias: dmi:bvnAcer:bvrV1.16:bd11/28/2012:svnAcer:pnTravelMate8481TG:pvrV1.16:rvnAcer:rnBA41_HS:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.16: dmi.product.name: TravelMate 8481TG dmi.product.version: V1.16 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1647048/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
