Hello. Trying to collect the trace, I got the following kernel trace appearing repeatedly in the system logs:
Jun 8 20:47:56 saguti-laptop kernel: [ 227.846542] ------------[ cut here ]------------ Jun 8 20:47:56 saguti-laptop kernel: [ 227.846567] WARNING: CPU: 2 PID: 135 at /home/kernel/COD/linux/drivers/net/wireless/ath/ath9k/hw.c:2776 ath9k_hw_gpio_get+0x161/0x1b0 [ath9k_hw] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846569] Modules linked in: rfcomm fuse drbg ansi_cprng ctr ccm cpufreq_userspace cpufreq_ondemand cpufreq_powersave bnep cpufreq_conservative binfmt_misc nls_iso8859_1 vfat fat uvcvideo videobuf2_vmalloc ath3k videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb btrtl btbcm btintel media bluetooth x86_pkg_temp_thermal nvram intel_powerclamp msr kvm_intel kvm arc4 acer_wmi irqbypass sparse_keymap ath9k joydev ath9k_common hid_multitouch ath9k_hw crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_hdmi ath mac80211 aesni_intel aes_x86_64 lrw input_leds cfg80211 snd_hda_codec_realtek gf128mul snd_hda_codec_generic snd_hda_intel glue_helper snd_hda_codec ablk_helper snd_hda_core snd_hwdep cryptd snd_pcm serio_raw snd_seq_midi snd_seq_midi_event sg snd_rawmidi snd_seq snd_seq_device snd_timer dw_dmac dw_dmac_core battery 8250_dw mei_me mei snd mac_hid spi_pxa2xx_platform ac i2c_designware_platform soundcore i2c_designware_core shpchp lpc_ich coretemp parport_pc ppdev lp parport autofs4 dm_mod sr_mod cdrom sd_mod hid_generic usbhid i915 ahci libahci crc32c_intel libata i2c_algo_bit drm_kms_helper syscopyarea xhci_pci ehci_pci sysfillrect r8169 xhci_hcd sysimgblt fb_sys_fops ehci_hcd mii drm thermal scsi_mod usbcore intel_gtt agpgart usb_common sdhci_acpi wmi sdhci i2c_hid fjes video led_class hid button Jun 8 20:47:56 saguti-laptop kernel: [ 227.846641] CPU: 2 PID: 135 Comm: kworker/u16:3 Tainted: G W 4.7.0-040700rc2-generic #201606051831 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846643] Hardware name: Acer Aspire V3-472G/EA40_HB, BIOS V1.21 09/24/2014 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846647] Workqueue: events_power_efficient rfkill_poll Jun 8 20:47:56 saguti-laptop kernel: [ 227.846649] 0000000000000286 00000000fc97a9fd ffff88003539fd28 ffffffff813c88a3 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846651] 0000000000000000 0000000000000000 ffff88003539fd68 ffffffff8108089b Jun 8 20:47:56 saguti-laptop kernel: [ 227.846654] 00000ad8fc97a9fd ffff88025274c018 000000000000000b ffff880252de0720 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846656] Call Trace: Jun 8 20:47:56 saguti-laptop kernel: [ 227.846662] [<ffffffff813c88a3>] dump_stack+0x63/0x90 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846665] [<ffffffff8108089b>] __warn+0xcb/0xf0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846667] [<ffffffff810809cd>] warn_slowpath_null+0x1d/0x20 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846674] [<ffffffffc07ee311>] ath9k_hw_gpio_get+0x161/0x1b0 [ath9k_hw] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846679] [<ffffffffc06b6553>] ath9k_rfkill_poll_state+0x33/0x60 [ath9k] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846699] [<ffffffffc07500b3>] ieee80211_rfkill_poll+0x33/0x40 [mac80211] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846711] [<ffffffffc05bb9fa>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846713] [<ffffffff817056f4>] rfkill_poll+0x24/0x50 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846716] [<ffffffff8109a767>] process_one_work+0x167/0x470 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846718] [<ffffffff8109aabb>] worker_thread+0x4b/0x4f0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846721] [<ffffffff8109aa70>] ? process_one_work+0x470/0x470 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846724] [<ffffffff810a1178>] kthread+0xd8/0xf0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846727] [<ffffffff81719f5f>] ret_from_fork+0x1f/0x40 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846730] [<ffffffff810a10a0>] ? kthread_create_on_node+0x1c0/0x1c0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846732] ---[ end trace a452da9b1d5c6333 ]--- Jun 8 20:47:56 saguti-laptop kernel: [ 227.846733] ------------[ cut here ]------------ Jun 8 20:47:56 saguti-laptop kernel: [ 227.846740] WARNING: CPU: 2 PID: 135 at /home/kernel/COD/linux/drivers/net/wireless/ath/ath9k/hw.c:2796 ath9k_hw_gpio_get+0xc0/0x1b0 [ath9k_hw] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846741] Modules linked in: rfcomm fuse drbg ansi_cprng ctr ccm cpufreq_userspace cpufreq_ondemand cpufreq_powersave bnep cpufreq_conservative binfmt_misc nls_iso8859_1 vfat fat uvcvideo videobuf2_vmalloc ath3k videobuf2_memops videobuf2_v4l2 videobuf2_core videodev btusb btrtl btbcm btintel media bluetooth x86_pkg_temp_thermal nvram intel_powerclamp msr kvm_intel kvm arc4 acer_wmi irqbypass sparse_keymap ath9k joydev ath9k_common hid_multitouch ath9k_hw crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_hdmi ath mac80211 aesni_intel aes_x86_64 lrw input_leds cfg80211 snd_hda_codec_realtek gf128mul snd_hda_codec_generic snd_hda_intel glue_helper snd_hda_codec ablk_helper snd_hda_core snd_hwdep cryptd snd_pcm serio_raw snd_seq_midi snd_seq_midi_event sg snd_rawmidi snd_seq snd_seq_device snd_timer dw_dmac dw_dmac_core battery 8250_dw mei_me mei snd mac_hid spi_pxa2xx_platform ac i2c_designware_platform soundcore i2c_designware_core shpchp lpc_ich coretemp parport_pc ppdev lp parport autofs4 dm_mod sr_mod cdrom sd_mod hid_generic usbhid i915 ahci libahci crc32c_intel libata i2c_algo_bit drm_kms_helper syscopyarea xhci_pci ehci_pci sysfillrect r8169 xhci_hcd sysimgblt fb_sys_fops ehci_hcd mii drm thermal scsi_mod usbcore intel_gtt agpgart usb_common sdhci_acpi wmi sdhci i2c_hid fjes video led_class hid button Jun 8 20:47:56 saguti-laptop kernel: [ 227.846792] CPU: 2 PID: 135 Comm: kworker/u16:3 Tainted: G W 4.7.0-040700rc2-generic #201606051831 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846793] Hardware name: Acer Aspire V3-472G/EA40_HB, BIOS V1.21 09/24/2014 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846796] Workqueue: events_power_efficient rfkill_poll Jun 8 20:47:56 saguti-laptop kernel: [ 227.846797] 0000000000000286 00000000fc97a9fd ffff88003539fd28 ffffffff813c88a3 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846799] 0000000000000000 0000000000000000 ffff88003539fd68 ffffffff8108089b Jun 8 20:47:56 saguti-laptop kernel: [ 227.846801] 00000aecfc97a9fd ffff88025274c018 000000000000000b ffff880252de0720 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846803] Call Trace: Jun 8 20:47:56 saguti-laptop kernel: [ 227.846806] [<ffffffff813c88a3>] dump_stack+0x63/0x90 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846808] [<ffffffff8108089b>] __warn+0xcb/0xf0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846810] [<ffffffff810809cd>] warn_slowpath_null+0x1d/0x20 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846816] [<ffffffffc07ee270>] ath9k_hw_gpio_get+0xc0/0x1b0 [ath9k_hw] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846820] [<ffffffffc06b6553>] ath9k_rfkill_poll_state+0x33/0x60 [ath9k] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846835] [<ffffffffc07500b3>] ieee80211_rfkill_poll+0x33/0x40 [mac80211] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846845] [<ffffffffc05bb9fa>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211] Jun 8 20:47:56 saguti-laptop kernel: [ 227.846848] [<ffffffff817056f4>] rfkill_poll+0x24/0x50 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846850] [<ffffffff8109a767>] process_one_work+0x167/0x470 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846852] [<ffffffff8109aabb>] worker_thread+0x4b/0x4f0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846854] [<ffffffff8109aa70>] ? process_one_work+0x470/0x470 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846857] [<ffffffff810a1178>] kthread+0xd8/0xf0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846860] [<ffffffff81719f5f>] ret_from_fork+0x1f/0x40 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846863] [<ffffffff810a10a0>] ? kthread_create_on_node+0x1c0/0x1c0 Jun 8 20:47:56 saguti-laptop kernel: [ 227.846864] ---[ end trace a452da9b1d5c6334 ]--- How should I proceed? -- 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/1576909 Title: Suspend not working on Ubuntu 16.04 Status in linux package in Ubuntu: Incomplete Bug description: I am running Ubuntu 16.04 on an Acer Aspire V3-472G with Nvidia Geforce 840M graphic cards, proprietary driver. None of the options for suspend are working. The process of suspend works fine but when the computer is waken, screen stays black and computer becomes unresponsive. Installation of packets such as uswsusp create a bigger problem as the computer freezes during boot process. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-21-generic 4.4.0-21.37 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: saguti 2907 F.... pulseaudio /dev/snd/pcmC1D0p: saguti 2907 F...m pulseaudio /dev/snd/controlC1: saguti 2907 F.... pulseaudio Date: Fri Apr 29 21:42:27 2016 HibernationDevice: RESUME=UUID=93ec1eec-dc0c-4ac4-9b06-b2d3cca2a8da InstallationDate: Installed on 2015-01-01 (484 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) Lsusb: Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 004: ID 04f2:b469 Chicony Electronics Co., Ltd Bus 002 Device 005: ID 0489:e04e Foxconn / Hon Hai Bus 002 Device 002: ID 3938:1031 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Acer Aspire V3-472G ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic root=/dev/mapper/ubuntu--vg-root ro acpi_sleep=nonvs resume=/dev/dm-1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-21-generic N/A linux-backports-modules-4.4.0-21-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-25 (4 days ago) dmi.bios.date: 09/24/2014 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.21 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: EA40_HB dmi.board.vendor: Acer dmi.board.version: Type2 - A01 Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.21:bd09/24/2014:svnAcer:pnAspireV3-472G:pvrTBDbyOEM:rvnAcer:rnEA40_HB:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion: dmi.product.name: Aspire V3-472G dmi.product.version: TBD by OEM dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1576909/+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
