Can anyone help track down my unknown source of rcu stalls, kworker infinite disk sleep, and general crashes unspecific crashes

Asked by Kris

ps aux | grep D shows kworker threads (always starting with thread kworker/u16:3) stuck in infinite disk sleep (to which more and more kworker threads enter infinite disk sleep) immediately followed by upower. System almost always locks up after this.

journalctl | grep -e "fail" -e "error" -e "warn" -e "Error" -e "Warn" -e "WARN" -e "FAIL" -e "ERROR" -e "trace" -e "stall" prints out

"May 25 12:01:37 Failboat-Mobile kernel: ftrace: allocating 31904 entries in 125 pages
May 25 12:01:37 Failboat-Mobile kernel: acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
May 25 12:01:37 Failboat-Mobile kernel: EXT4-fs (sda1): re-mounted. Opts: discard,errors=remount-ro
May 25 12:01:37 Failboat-Mobile kernel: ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20150930/utaddress-254)
May 25 12:01:37 Failboat-Mobile kernel: ACPI Warning: SystemIO range 0x0000000000000540-0x000000000000054F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150930/utaddress-254)
May 25 12:01:37 Failboat-Mobile kernel: ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150930/utaddress-254)
May 25 12:01:37 Failboat-Mobile kernel: ACPI Warning: SystemIO range 0x0000000000000500-0x000000000000052F conflicts with OpRegion 0x0000000000000500-0x0000000000000563 (\GPIO) (20150930/utaddress-254)
May 25 12:01:38 Failboat-Mobile thermald[840]: failed to open /dev/acpi_thermal_rel
May 25 12:01:38 Failboat-Mobile thermald[840]: failed to open /dev/acpi_thermal_rel
May 25 12:01:38 Failboat-Mobile thermald[840]: TRT/ART read failed
May 25 12:01:38 Failboat-Mobile whoopsie[754]: [12:01:38] GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.NetworkManager was not provided by any .service files
May 25 12:01:38 Failboat-Mobile smartd[832]: Device: /dev/sda [SAT], no SMART Error Log, ignoring -l error (override with -T permissive)
May 25 12:01:38 Failboat-Mobile thermald[840]: sysfs write failed enabled
May 25 12:01:38 Failboat-Mobile thermald[840]: sysfs read failed max_brightness
May 25 12:01:38 Failboat-Mobile smartd[832]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 100 to 120
May 25 12:01:38 Failboat-Mobile smartd[832]: Device: /dev/sda [SAT], SMART Usage Attribute: 195 ECC_Uncorr_Error_Count changed from 120 to 100
May 25 12:01:38 Failboat-Mobile gpu-manager[887]: Error: can't open /lib/modules/4.4.0-22-lowlatency/updates/dkms
May 25 12:01:38 Failboat-Mobile gpu-manager[887]: Error: can't open /lib/modules/4.4.0-22-lowlatency/updates/dkms
May 25 12:01:38 Failboat-Mobile gpu-manager[887]: update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf
May 25 12:01:38 Failboat-Mobile NetworkManager[896]: <warn> [1464192098.7386] interfaces file /etc/network/interfaces.d/* doesn't exist
May 25 12:01:38 Failboat-Mobile NetworkManager[896]: <warn> [1464192098.7415] SettingsPlugin-Ofono: file doesn't exist: /var/lib/ofono
May 25 12:01:38 Failboat-Mobile NetworkManager[896]: nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed
May 25 12:01:39 Failboat-Mobile NetworkManager[896]: <warn> [1464192099.2615] failed to enumerate oFono devices: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.ofono was not provided by any .service files
May 25 12:01:39 Failboat-Mobile wpa_supplicant[1117]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
May 25 12:01:39 Failboat-Mobile sddm-greeter[1120]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
May 25 12:01:39 Failboat-Mobile sddm-greeter[1120]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
May 25 12:01:43 Failboat-Mobile NetworkManager[896]: <warn> [1464192103.7836] dnsmasq[0x16a2280]: dnsmasq not found on the bus. The nameserver update will be sent when dnsmasq appears
May 25 12:01:43 Failboat-Mobile dnsmasq[1262]: warning: no upstream servers configured
May 25 12:01:47 Failboat-Mobile org.a11y.Bus[1618]: ** (process:1656): WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
May 25 12:01:49 Failboat-Mobile org.kde.KScreen[1618]: kscreen.xcb.helper: Event Error: 147
May 25 12:02:13 Failboat-Mobile pulseaudio[1774]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
May 25 12:39:08 Failboat-Mobile kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=135100 end=135101) time 198 us, min 763, max 767, scanline start 748, end 772
May 25 12:39:20 Failboat-Mobile pulseaudio[1774]: [pulseaudio] shm.c: shm_open() failed: No such file or directory
May 25 12:39:20 Failboat-Mobile pulseaudio[1774]: [pulseaudio] shm.c: shm_open() failed: No such file or directory
May 25 15:53:40 Failboat-Mobile kernel: [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=830930 end=830931) time 301 us, min 763, max 767, scanline start 752, end 768
May 25 17:01:38 Failboat-Mobile smartd[832]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 120 to 99
May 25 17:01:38 Failboat-Mobile smartd[832]: Device: /dev/sda [SAT], SMART Usage Attribute: 195 ECC_Uncorr_Error_Count changed from 100 to 120
May 25 17:15:53 Failboat-Mobile kernel: INFO: rcu_preempt detected stalls on CPUs/tasks:
May 25 17:16:53 Failboat-Mobile kernel: INFO: rcu_preempt detected stalls on CPUs/tasks:
May 25 17:16:56 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:16:57 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:16:58 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:16:59 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:00 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:01 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:02 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:03 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:04 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:05 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:06 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:07 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:08 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:09 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:10 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:11 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:12 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:13 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:14 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:15 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:16 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:17 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:18 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:19 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:20 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:21 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:22 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:23 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:24 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:25 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:26 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:27 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:28 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:29 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:30 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:31 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:32 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:33 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:34 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:35 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:36 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:37 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:38 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:39 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:40 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:41 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:42 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:43 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:44 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:45 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:46 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:47 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:48 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:49 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:50 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:51 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:52 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:53 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:54 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:55 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:56 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:57 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:58 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:17:59 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:00 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:01 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:02 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:03 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:04 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:05 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:06 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:07 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:08 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:10 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:11 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:12 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:13 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:14 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:15 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:16 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:17 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:18 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:19 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:20 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:21 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:22 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:23 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:24 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:25 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:26 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:27 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:28 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:29 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:30 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:31 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:32 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:33 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:34 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:35 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:36 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:37 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:38 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:39 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:40 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:41 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:42 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:43 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:44 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:45 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:46 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:47 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:48 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:49 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:50 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:51 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:52 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:53 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:54 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:55 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:56 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:56 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:57 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:58 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:18:59 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:00 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:01 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:02 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:03 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:04 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:05 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:06 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:07 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:08 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:09 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:10 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:11 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:12 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:13 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:14 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:15 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:16 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:17 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:18 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:19 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:20 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:21 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:22 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:23 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:24 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:25 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:26 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:27 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:28 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:29 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:30 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:31 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:32 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:33 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:34 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:35 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:36 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:37 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:38 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:39 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:40 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:41 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:42 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:43 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:44 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:45 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:46 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:47 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:48 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:49 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:50 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:51 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:52 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:53 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:53 Failboat-Mobile kernel: INFO: rcu_preempt detected stalls on CPUs/tasks:
May 25 17:19:54 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:55 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:56 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:57 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:58 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:19:59 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:00 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:01 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:02 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:03 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:04 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:05 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1
May 25 17:20:06 Failboat-Mobile wpa_supplicant[1117]: wlp3s0: CTRL-EVENT-SCAN-FAILED ret=-16 retry=1"

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Launchpad Janitor (janitor) said :
#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.