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Message #118482
[Bug 1437492] Re: boot stalls on USB detection errors
My post with all my typos fixed:
I have the same bug, "error -110" USB error messages, and when I reboot,
the computer's UEFI initialisation during boot, at the USB device stage,
is very slow.
The problem gets fixed temporarily, if you unplug the computer from the
power socket (or turn off the power switch, at the back of the
computer), and leave it off until the motherboard loses all its power.
It looks like it is some kernel 3.19 bug with USB ports. Some USB ports
remain powered on, if you shutdown the computer, for charging devices,
etc.
If you remove the power plug, all USB ports turn off, so the issue gets
fixed, until the issue reappears at some random time, when the kernel
gets loaded again.
The issue does not exist with *buntu 14.04/14.04.2, and 14.10.
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https://bugs.launchpad.net/bugs/1437492
Title:
boot stalls on USB detection errors
Status in linux package in Ubuntu:
Confirmed
Bug description:
My system boots slow. I investigated this and it seems systemd-udev-settle.service is the culprit.
My system runs ext4 with GPT on UEFI.
I do not use encryption or LVM.
$ journalctl -u systemd-udev-settle
-- Logs begin at fri 2015-03-27 19:03:06 CET, end at fri 2015-03-27 22:06:32 CET. --
mar 27 19:03:42 hostname systemd[1]: Started udev Wait for Complete Device Initialization.
$ systemd-analyze
Startup finished in 14.865s (firmware) + 11.133s (loader) + 6.127s (kernel) + 42.079s (userspace) = 1min 14.206s
$ systemd-analyze critical-chain
http://paste.ubuntu.com/10691416/
$ systemd-analyze blame
36.013s systemd-udev-settle.service
http://paste.ubuntu.com/10691314/
$ systemctl show systemd-udev-settle.service -p RequiredBy
RequiredBy=
$ systemctl show systemd-udev-settle.service -p WantedBy
WantedBy=friendly-recovery.service
$ systemd-analyze plot > boot.svg
http://imgh.us/boot_1.svg
$ systemd-analyze dump
http://paste.ubuntu.com/10691856/
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: systemd 219-5ubuntu1
ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
Uname: Linux 3.19.0-10-generic x86_64
ApportVersion: 2.16.2-0ubuntu5
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Fri Mar 27 22:05:28 2015
InstallationDate: Installed on 2013-12-26 (455 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: ASUS All Series
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-10-generic.efi.signed root=UUID=31dc4488-28d4-4d2a-aa51-6733e237d5f8 ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/18/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2103
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z87-PRO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2103:bd08/18/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ87-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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