我的 ThinkPad 笔记本电脑启动非常慢，它配备了第六代 i5、8 条内存和 1 个 HDD，这是我的 dmsg 输出：
[ 1.303559] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin (v1.27)
[ 1.312050] [drm] Initialized i915 1.6.0 20190822 for 0000:00:02.0 on minor 0
[ 1.313682] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[ 1.314732] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
[ 1.315064] input: Video Bus as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input6
[ 1.464919] usb 1-1: New USB device found, idVendor=0930, idProduct=6544, bcdDevice= 1.00
[ 1.464921] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.464922] usb 1-1: Product: TransMemory
[ 1.464923] usb 1-1: Manufacturer: TOSHIBA
[ 1.464924] usb 1-1: SerialNumber: 54B80A3FA779C18100027640
[ 1.514306] fbcon: i915drmfb (fb0) is primary device
[ 1.514307] fbcon: Deferring console take-over
[ 1.514309] i915 0000:00:02.0: fb0: i915drmfb frame buffer device
[ 1.593855] usb 1-3: new high-speed USB device number 3 using xhci_hcd
[ 1.746792] usb 1-3: config 1 has an invalid interface number: 12 but max is 4
[ 1.746794] usb 1-3: config 1 has an invalid interface number: 13 but max is 4
[ 1.746794] usb 1-3: config 1 has an invalid interface number: 13 but max is 4
[ 1.746795] usb 1-3: config 1 has no interface number 1
[ 1.746796] usb 1-3: config 1 has no interface number 4
[ 1.748317] usb 1-3: New USB device found, idVendor=1199, idProduct=9079, bcdDevice= 0.06
[ 1.748319] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1.748320] usb 1-3: Product: Sierra Wireless EM7455 Qualcomm Snapdragon X7 LTE-A
[ 1.748321] usb 1-3: Manufacturer: Sierra Wireless, Incorporated
[ 1.748322] usb 1-3: SerialNumber: LF63911203031014
[ 1.778118] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1.797573] ata2.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 1.797576] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.835401] ata2.00: ATA-10: ST1000LM035-1RK172, SDM1, max UDMA/133
[ 1.835404] ata2.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 32), AA
[ 1.867533] ata2.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[ 1.867536] ata2.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered out
[ 1.881859] usb 1-7: new full-speed USB device number 4 using xhci_hcd
[ 1.905325] ata2.00: configured for UDMA/133
[ 1.914957] scsi 1:0:0:0: Direct-Access ATA ST1000LM035-1RK1 SDM1 PQ: 0 ANSI: 5
[ 1.915382] sd 1:0:0:0: Attached scsi generic sg0 type 0
[ 1.915409] sd 1:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[ 1.915411] sd 1:0:0:0: [sda] 4096-byte physical blocks
[ 1.915423] sd 1:0:0:0: [sda] Write Protect is off
[ 1.915425] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.915455] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.926066] tsc: Refined TSC clocksource calibration: 2496.013 MHz
[ 1.926072] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23fa83802b9, max_idle_ns: 440795289750 ns
[ 1.926264] clocksource: Switched to clocksource tsc
[ 2.010683] sda: sda1 sda2 sda3 sda4 sda5 sda6
[ 2.011958] sd 1:0:0:0: [sda] Attached SCSI disk
[ 2.034671] usb 1-7: New USB device found, idVendor=8087, idProduct=0a2b, bcdDevice= 0.01
[ 2.034673] usb 1-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.080463] psmouse serio1: synaptics: queried max coordinates: x [..5676], y [..4758]
[ 2.111436] psmouse serio1: synaptics: queried min coordinates: x [1266..], y [1096..]
[ 2.111440] psmouse serio1: synaptics: Your touchpad (PNP: LEN2016 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to [email protected].
[ 2.169680] usb 1-10: new high-speed USB device number 5 using xhci_hcd
[ 2.172145] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1, caps: 0xf006a3/0x943300/0x12e800/0x10000, board id: 3053, fw id: 2010421
[ 2.172149] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0
[ 2.210705] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input5
[ 2.335591] usb 1-10: New USB device found, idVendor=5986, idProduct=0706, bcdDevice= 0.12
[ 2.335593] usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 2.335594] usb 1-10: Product: Integrated Camera
[ 2.335595] usb 1-10: Manufacturer: SunplusIT Inc
[ 2.343008] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 2.343171] scsi host2: usb-storage 1-1:1.0
[ 2.343280] usbcore: registered new interface driver usb-storage
[ 2.344235] usbcore: registered new interface driver uas
[ 2.860627] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 3.082521] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input7
[ 3.380834] scsi 2:0:0:0: Direct-Access TOSHIBA TransMemory 1.00 PQ: 0 ANSI: 4
[ 3.381206] sd 2:0:0:0: Attached scsi generic sg1 type 0
[ 3.381447] sd 2:0:0:0: [sdb] 30310400 512-byte logical blocks: (15.5 GB/14.5 GiB)
[ 3.381654] sd 2:0:0:0: [sdb] Write Protect is off
[ 3.381655] sd 2:0:0:0: [sdb] Mode Sense: 45 00 00 00
[ 3.381861] sd 2:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 3.399931] sdb: sdb1
[ 3.400924] sd 2:0:0:0: [sdb] Attached SCSI removable disk
[ 4.139964] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[ 4.223724] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) c8:5b:76:83:6a:b8
[ 4.223725] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[ 4.223781] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: 1000FF-0FF
[ 4.224625] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[ 5.382517] EXT4-fs (sda5): mounted filesystem with ordered data mode. Opts: (null)
[ 7.601382] systemd[1]: Inserted module 'autofs4'
[ 7.835888] systemd[1]: systemd 245.4-4ubuntu3.1 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid)
[ 7.854183] systemd[1]: Detected architecture x86-64.
[ 7.901156] systemd[1]: Set hostname to <anas-ThinkPad-T460>.
[ 10.006189] systemd[1]: /lib/systemd/system/dbus.socket:5: ListenStream= references a path below legacy directory /var/run/, updating /var/run/dbus/system_bus_socket → /run/dbus/system_bus_socket; please update the unit file accordingly.
[ 10.224808] systemd[1]: /lib/systemd/system/vpnagentd.service:10: PIDFile= references a path below legacy directory /var/run/, updating /var/run/vpnagentd.pid → /run/vpnagentd.pid; please update the unit file accordingly.
[ 10.528736] systemd[1]: /lib/systemd/system/docker.socket:6: ListenStream= references a path below legacy directory /var/run/, updating /var/run/docker.sock → /run/docker.sock; please update the unit file accordingly.
[ 10.630103] systemd[1]: Created slice system-modprobe.slice.
[ 10.630426] systemd[1]: Created slice system-systemd\x2dfsck.slice.
[ 10.630634] systemd[1]: Created slice User and Session Slice.
[ 10.630692] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[ 10.630891] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[ 10.630933] systemd[1]: Reached target User and Group Name Lookups.
[ 10.630943] systemd[1]: Reached target Remote File Systems.
[ 10.630950] systemd[1]: Reached target Slices.
[ 10.631096] systemd[1]: Listening on Syslog Socket.
[ 10.631164] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 10.631202] systemd[1]: Listening on initctl Compatibility Named Pipe.
[ 10.631346] systemd[1]: Listening on Journal Audit Socket.
[ 10.631411] systemd[1]: Listening on Journal Socket (/dev/log).
[ 10.631490] systemd[1]: Listening on Journal Socket.
[ 10.631564] systemd[1]: Listening on udev Control Socket.
[ 10.631626] systemd[1]: Listening on udev Kernel Socket.
[ 10.632479] systemd[1]: Mounting Huge Pages File System...
[ 10.633404] systemd[1]: Mounting POSIX Message Queue File System...
[ 10.634745] systemd[1]: Mounting Kernel Debug File System...
[ 10.635999] systemd[1]: Mounting Kernel Trace File System...
[ 10.637631] systemd[1]: Starting Journal Service...
[ 10.638597] systemd[1]: Starting Set the console keyboard layout...
[ 10.639633] systemd[1]: Starting Create list of static device nodes for the current kernel...
[ 10.639687] systemd[1]: Condition check resulted in Load Kernel Module drm being skipped.
[ 10.760671] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[ 10.760719] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[ 10.763100] systemd[1]: Starting Load Kernel Modules...
[ 10.763933] systemd[1]: Starting Remount Root and Kernel File Systems...
[ 10.764773] systemd[1]: Starting udev Coldplug all Devices...
[ 10.765620] systemd[1]: Starting Uncomplicated firewall...
[ 10.767511] systemd[1]: Mounted Huge Pages File System.
[ 10.767698] systemd[1]: Mounted POSIX Message Queue File System.
[ 10.767801] systemd[1]: Mounted Kernel Debug File System.
[ 10.767896] systemd[1]: Mounted Kernel Trace File System.
[ 10.777449] systemd[1]: Finished Create list of static device nodes for the current kernel.
[ 10.790296] systemd[1]: Finished Uncomplicated firewall.
[ 10.886989] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[ 10.888959] systemd[1]: Finished Remount Root and Kernel File Systems.
[ 10.889976] systemd[1]: Condition check resulted in Rebuild Hardware Database being skipped.
[ 10.890025] systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
[ 10.891171] systemd[1]: Starting Load/Save Random Seed...
[ 10.892364] systemd[1]: Starting Create System Users...
[ 10.988976] systemd[1]: Finished udev Coldplug all Devices.
[ 11.148705] systemd[1]: Started Journal Service.
[ 11.233888] systemd-journald[423]: Received client request to flush runtime journal.
[ 11.466835] lp: driver loaded but no devices found
[ 11.559435] ppdev: user-space parallel port driver
[ 14.039310] mei_me 0000:00:16.0: enabling device (0000 -> 0002)
[ 14.080931] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[ 14.083360] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[ 14.145227] Intel(R) Wireless WiFi driver for Linux
[ 14.145229] Copyright(c) 2003- 2015 Intel Corporation
[ 14.145547] iwlwifi 0000:04:00.0: enabling device (0000 -> 0002)
[ 14.238457] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer
[ 14.238459] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules
[ 14.238459] RAPL PMU: hw unit of domain package 2^-14 Joules
[ 14.238460] RAPL PMU: hw unit of domain dram 2^-14 Joules
[ 14.238461] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules
[ 14.238461] RAPL PMU: hw unit of domain psys 2^-14 Joules
[ 14.274143] iwlwifi 0000:04:00.0: Found debug destination: EXTERNAL_DRAM
[ 14.274145] iwlwifi 0000:04:00.0: Found debug configuration: 0
[ 14.274893] iwlwifi 0000:04:00.0: loaded firmware version 36.77d01142.0 op_mode iwlmvm
[ 14.662191] Non-volatile memory driver v1.3
[ 14.919364] intel_rapl_common: Found RAPL domain package
[ 14.919366] intel_rapl_common: Found RAPL domain core
[ 14.919367] intel_rapl_common: Found RAPL domain uncore
[ 14.919367] intel_rapl_common: Found RAPL domain dram
[ 15.206458] thinkpad_acpi: ThinkPad ACPI Extras v0.26
[ 15.206459] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 15.206460] thinkpad_acpi: ThinkPad BIOS R06ET67W (1.41 ), EC R06HT31W
[ 15.206461] thinkpad_acpi: Lenovo ThinkPad T460, model 20FMS64X01
[ 15.208115] thinkpad_acpi: radio switch found; radios are enabled
[ 15.208132] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
[ 15.208133] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
[ 15.211456] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 15.212806] thinkpad_acpi: rfkill switch tpacpi_wwan_sw: radio is unblocked
[ 15.223448] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one
[ 15.233511] thinkpad_acpi: battery 1 registered (start 45, stop 65)
[ 15.233517] battery: new extension: ThinkPad Battery Extension
[ 15.233577] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input8
[ 15.764278] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 15.855330] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC293: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 15.855332] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 15.855334] snd_hda_codec_realtek hdaudioC0D0: hp_outs=2 (0x16/0x15/0x0/0x0/0x0)
[ 15.855335] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 15.855335] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 15.855336] snd_hda_codec_realtek hdaudioC0D0: Dock Mic=0x19
[ 15.855337] snd_hda_codec_realtek hdaudioC0D0: Mic=0x1a
[ 15.855338] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12
[ 15.912251] input: HDA Intel PCH Dock Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input9
[ 15.912305] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input10
[ 15.912355] input: HDA Intel PCH Dock Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input11
[ 15.912413] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input12
[ 15.912470] input: HDA Intel PCH HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input13
[ 15.912519] input: HDA Intel PCH HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input14
[ 15.912567] input: HDA Intel PCH HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input15
[ 15.912616] input: HDA Intel PCH HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input16
[ 15.912666] input: HDA Intel PCH HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17
[ 15.919952] iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
[ 15.927914] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 15.928688] iwlwifi 0000:04:00.0: Allocated 0x00400000 bytes for firmware monitor.
[ 15.997384] iwlwifi 0000:04:00.0: base HW address: e4:a7:a0:b4:cd:46
[ 16.072205] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
[ 16.072582] thermal thermal_zone3: failed to read out thermal zone (-61)
[ 16.170040] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0
[ 18.534261] mc: Linux media interface: v0.10
[ 18.571192] Bluetooth: Core ver 2.22
[ 18.571216] NET: Registered protocol family 31
[ 18.571217] Bluetooth: HCI device and connection manager initialized
[ 18.571286] Bluetooth: HCI socket layer initialized
[ 18.571288] Bluetooth: L2CAP socket layer initialized
[ 18.571292] Bluetooth: SCO socket layer initialized
[ 18.579978] videodev: Linux video capture interface: v2.00
[ 18.595839] usbcore: registered new interface driver usbserial_generic
[ 18.595847] usbserial: USB Serial support registered for generic
[ 18.695309] usbcore: registered new interface driver qcserial
[ 18.695317] usbserial: USB Serial support registered for Qualcomm USB modem
[ 18.695861] qcserial 1-3:1.0: Qualcomm USB modem converter detected
[ 18.695952] usb 1-3: Qualcomm USB modem converter now attached to ttyUSB0
[ 18.696484] qcserial 1-3:1.2: Qualcomm USB modem converter detected
[ 18.696545] usb 1-3: Qualcomm USB modem converter now attached to ttyUSB1
[ 18.696963] qcserial 1-3:1.3: Qualcomm USB modem converter detected
[ 18.697008] usb 1-3: Qualcomm USB modem converter now attached to ttyUSB2
[ 18.766025] usbcore: registered new interface driver btusb
[ 18.770119] Bluetooth: hci0: Firmware revision 0.0 build 10 week 41 2018
[ 18.772030] usbcore: registered new interface driver cdc_ncm
[ 18.826117] usbcore: registered new interface driver cdc_wdm
[ 18.866853] uvcvideo: Found UVC 1.00 device Integrated Camera (5986:0706)
[ 18.885496] uvcvideo 1-10:1.0: Entity type for entity Extension 4 was not initialized!
[ 18.885499] uvcvideo 1-10:1.0: Entity type for entity Extension 3 was not initialized!
[ 18.885501] uvcvideo 1-10:1.0: Entity type for entity Processing 2 was not initialized!
[ 18.885502] uvcvideo 1-10:1.0: Entity type for entity Camera 1 was not initialized!
[ 18.885574] input: Integrated Camera: Integrated C as /devices/pci0000:00/0000:00:14.0/usb1/1-10/1-10:1.0/input/input18
[ 18.885662] usbcore: registered new interface driver uvcvideo
[ 18.885662] USB Video Class driver (1.1.1)
[ 18.943387] cdc_mbim 1-3:1.12: cdc-wdm0: USB WDM device
[ 18.943618] cdc_mbim 1-3:1.12 wwan0: register 'cdc_mbim' at usb-0000:00:14.0-3, CDC MBIM, 3e:d8:91:b6:e4:1a
[ 18.943676] usbcore: registered new interface driver cdc_mbim
[ 21.950123] Adding 3906556k swap on /dev/sda6. Priority:-2 extents:1 across:3906556k FS
[ 23.388626] audit: type=1400 audit(1593110853.838:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine" pid=1014 comm="apparmor_parser"
[ 23.388629] audit: type=1400 audit(1593110853.838:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/snapd/snap-confine//mount-namespace-capture-helper" pid=1014 comm="apparmor_parser"
[ 23.388631] audit: type=1400 audit(1593110853.838:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-oopslash" pid=1013 comm="apparmor_parser"
[ 23.392671] audit: type=1400 audit(1593110853.842:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=1012 comm="apparmor_parser"
[ 23.392687] audit: type=1400 audit(1593110853.842:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=1012 comm="apparmor_parser"
[ 23.392689] audit: type=1400 audit(1593110853.842:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=1012 comm="apparmor_parser"
[ 23.392690] audit: type=1400 audit(1593110853.842:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/{,usr/}sbin/dhclient" pid=1012 comm="apparmor_parser"
[ 23.394628] audit: type=1400 audit(1593110853.846:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=1015 comm="apparmor_parser"
[ 23.394631] audit: type=1400 audit(1593110853.846:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session//chromium" pid=1015 comm="apparmor_parser"
[ 23.419348] audit: type=1400 audit(1593110853.870:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="libreoffice-xpdfimport" pid=1016 comm="apparmor_parser"
[ 46.455625] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 46.455631] Bluetooth: BNEP filters: protocol multicast
[ 46.455644] Bluetooth: BNEP socket layer initialized
[ 46.504620] NET: Registered protocol family 38
[ 47.237988] kauditd_printk_skb: 23 callbacks suppressed
[ 47.237990] audit: type=1400 audit(1593110877.690:35): apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed" pid=1175 comm="cups-browsed" capability=23 capname="sys_nice"
[ 53.027358] bpfilter: Loaded bpfilter_umh pid 1283
[ 53.028717] Started bpfilter
[ 54.555630] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 54.705189] iwlwifi 0000:04:00.0: Applying debug destination EXTERNAL_DRAM
[ 54.786431] iwlwifi 0000:04:00.0: FW already configured (0) - re-configuring
[ 57.953624] aufs 5.4.3-20200302
[ 74.361017] audit: type=1400 audit(1593110904.810:36): apparmor="STATUS" operation="profile_load" profile="unconfined" name="docker-default" pid=3110 comm="apparmor_parser"
[ 81.108387] Bluetooth: RFCOMM TTY layer initialized
[ 81.108395] Bluetooth: RFCOMM socket layer initialized
[ 81.108400] Bluetooth: RFCOMM ver 1.11
[ 87.115242] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 87.146123] Bridge firewalling registered
[ 88.134556] Initializing XFRM netlink socket
[ 93.112368] acpi_call: loading out-of-tree module taints kernel.
[ 93.112549] acpi_call: module verification failed: signature and/or required key missing - tainting kernel
[ 136.589814] wlp4s0: authenticate with 34:e8:94:2d:77:9f
[ 136.601224] wlp4s0: send auth to 34:e8:94:2d:77:9f (try 1/3)
[ 136.610442] wlp4s0: authenticated
[ 136.611263] wlp4s0: associating with AP with corrupt probe response
[ 136.617773] wlp4s0: associate with 34:e8:94:2d:77:9f (try 1/3)
[ 136.624082] wlp4s0: RX AssocResp from 34:e8:94:2d:77:9f (capab=0x431 status=0 aid=6)
[ 136.632729] wlp4s0: associated
[ 137.859480] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready
[ 160.649529] usb 1-1: USB disconnect, device number 2
这是我的 systemd-analyze blame 输出：
31.544s docker.service
26.209s systemd-journal-flush.service
21.045s snapd.service
17.054s networkd-dispatcher.service
16.450s NetworkManager-wait-online.service
10.445s accounts-daemon.service
10.003s dev-sda5.device
9.796s udisks2.service
6.953s smartmontools.service
6.369s plymouth-quit-wait.service
5.873s lightdm.service
5.495s gpu-manager.service
5.294s ModemManager.service
5.005s polkit.service
4.653s NetworkManager.service
4.499s avahi-daemon.service
4.498s bluetooth.service
4.212s dev-loop3.device
3.841s grub-common.service
3.691s apport.service
3.373s thermald.service
3.369s systemd-logind.service
3.366s wpa_supplicant.service
3.194s dev-loop1.device
2.994s dev-loop2.device
2.982s preload.service
2.929s dev-loop9.device
2.928s dev-loop8.device
2.910s dev-loop7.device
2.574s dev-loop4.device
2.512s dev-loop0.device
2.445s dev-loop5.device
2.418s dev-loop6.device
2.245s grub-initrd-fallback.service
2.127s systemd-resolved.service
2.027s systemd-backlight@backlight:intel_backlight.service
1.495s systemd-fsck@dev-disk-by\x2duuid-092D\x2d1476.service
1.322s apparmor.service
1.312s tlp.service
1.267s rsyslog.service
1.244s systemd-modules-load.service
1.222s vpnagentd.service
1.165s snapd.seeded.service
1.148s alsa-restore.service
1.129s lm-sensors.service
1.122s e2scrub_reap.service