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Message #180146
[Bug 1437492] Re: boot stalls on USB detection errors
finally there is a fix from upstream kernel
https://git.kernel.org/cgit/linux/kernel/git/next/linux-
next.git/patch/include/linux/usb.h?id=feb26ac31a2a5cb88d86680d9a94916a6343e9e6
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https://bugs.launchpad.net/bugs/1437492
Title:
boot stalls on USB detection errors
Status in linux package in Ubuntu:
Confirmed
Status in linux package in Debian:
New
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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