Public bug reported:
I have the bug with the Kubuntu 18.04
sb_release -rd:
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Before, i was using the 16 (LTS) version and the boot was quick.
I have first try un update and i have the problem,
with a fresh install, i have also the same problem.
In the boot, i have a long time (33s) without message and action
In this extract of the dmesg, you can see the 33 seconds without messages
[ 5.434266] sdc: sdc1 sdc2
[ 5.434268] sd 11:0:0:0: [sdd] 537234768 512-byte logical blocks: (275
GB/256 GiB)
[ 5.434288] sd 11:0:0:0: [sdd] Write Protect is off
[ 5.434290] sd 11:0:0:0: [sdd] Mode Sense: 00 3a 00 00
[ 5.434312] sd 11:0:0:0: [sdd] Write cache: enabled, read cache: enabled,
doesn't support DPO or FUA
[ 5.434404] ata12.00: Enabling discard_zeroes_data
[ 5.434436] sd 5:0:0:0: [sdc] Attached SCSI disk
[ 5.435541] sdd: sdd1 sdd2
[ 5.435661] ata12.00: Enabling discard_zeroes_data
[ 5.435893] sd 11:0:0:0: [sdd] supports TCG Opal
[ 5.435895] sd 11:0:0:0: [sdd] Attached SCSI disk
[ 38.317233] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts:
(null)
[ 38.439463] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 38.548456] systemd[1]: systemd 237 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)
[ 38.568547] systemd[1]: Detected architecture x86-64.
[ 38.572697] systemd[1]: Set hostname to <lune>.
[ 38.649301] systemd[1]: Created slice User and Session Slice.
[ 38.649610] systemd[1]: Set up automount Arbitrary Executable File Formats
File System Automount Point.
[ 38.649680] systemd[1]: Created slice System Slice.
[ 38.649716] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 38.649740] systemd[1]: Listening on Device-mapper event daemon FIFOs.
[ 38.649760] systemd[1]: Listening on udev Kernel Socket.
[ 38.649768] systemd[1]: Reached target Slices.
[ 38.667706] EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro
With the command
sudo systemd-analyze time
[sudo] Mot de passe de jacky :
Startup finished in 12.351s (firmware) + 11.414s (loader) + 38.418s (kernel) +
1.902s (userspace) = 1min 4.086s
graphical.target reached after 1.898s in userspace
You can see the 38 seconds in the kernel mode
In the blame, there is any long action
sudo systemd-analyze blame
352ms disk-tera.mount
321ms NetworkManager.service
273ms dev-mapper-kubuntu\x2d\x2dvg\x2droot.device
264ms udisks2.service
236ms networkd-dispatcher.service
234ms snapd.service
201ms systemd-logind.service
196ms mpd.service
192ms ModemManager.service
170ms disk-sdb.mount
157ms systemd-timesyncd.service
132ms systemd-resolved.service
130ms accounts-daemon.service
84ms thermald.service
79ms alsa-restore.service
76ms pppd-dns.service
74ms keyboard-setup.service
74ms plymouth-quit.service
71ms systemd-journal-flush.service
68ms wpa_supplicant.service
61ms lvm2-pvscan@8:50.service
58ms gpu-manager.service
57ms colord.service
56ms systemd-udev-trigger.service
53ms systemd-udevd.service
52ms upower.service
51ms packagekit.service
49ms lvm2-monitor.service
49ms apparmor.service
46ms rsyslog.service
44ms [email protected]
42ms systemd-journald.service
41ms grub-common.service
39ms polkit.service
27ms systemd-modules-load.service
27ms plymouth-start.service
26ms [email protected]
26ms apport.service
23ms systemd-tmpfiles-setup-dev.service
21ms avahi-daemon.service
17ms systemd-remount-fs.service
14ms plymouth-read-write.service
14ms sys-kernel-debug.mount
12ms dev-mqueue.mount
11ms systemd-tmpfiles-clean.service
11ms systemd-tmpfiles-setup.service
10ms dev-hugepages.mount
9ms lvm2-pvscan@8:34.service
9ms systemd-sysctl.service
8ms kerneloops.service
8ms ufw.service
8ms blk-availability.service
8ms snapd.seeded.service
7ms systemd-random-seed.service
6ms kmod-static-nodes.service
5ms ureadahead-stop.service
4ms systemd-update-utmp.service
4ms rtkit-daemon.service
4ms dev-mapper-kubuntu\x2d\x2dvg\x2dswap_1.swap
3ms systemd-user-sessions.service
2ms systemd-update-utmp-runlevel.service
2ms console-setup.service
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-38-generic 4.15.0-38.41
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
Uname: Linux 4.15.0-38-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: jacky 1399 F.... pulseaudio
/dev/snd/controlC1: jacky 1399 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue Oct 23 15:50:11 2018
HibernationDevice: RESUME=UUID=6e57e929-ea31-4512-9599-1ceb93a37576
InstallationDate: Installed on 2018-10-07 (16 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
IwConfig:
lo no wireless extensions.
enp8s0 no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. A320MA-M.2
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic
root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-38-generic N/A
linux-backports-modules-4.15.0-38-generic N/A
linux-firmware 1.173.1
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/19/2017
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F1
dmi.board.asset.tag: Default string
dmi.board.name: A320MA-M.2-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF1:bd05/19/2017:svnGigabyteTechnologyCo.,Ltd.:pnA320MA-M.2:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnA320MA-M.2-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: A320MA-M.2
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1799470
Title:
slow boot in kubuntu 18.04
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