[Bug 1429098] Re: systemd[1]: ureadahead.service fails on vanilla kernels, needs Ubuntu kernel patch

[Lucas Magasweran]

A non-Ubuntu kernel doesn't have the required tracepoints and will
result in the following error.

ureadahead: Error while tracing: No such file or directory

If you're not running a stock Ubuntu kernel you will need a patch [1]
(worked on my 4.14 Debian kernel) or [2] (original patch).
Unfortunately, these trace events will never be upstreamed [3].

[1] http://kernel.ubuntu.com/git/ubuntu/ubuntu-xenial.git/commit/?h=hwe&id=7744c33fdad887074a481fd4d21ccb6670ac62e6 
[2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/462111
[3] https://patchwork.kernel.org/patch/9254717/

** Changed in: ureadahead (Ubuntu)
       Status: Triaged => Invalid

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Title:
  systemd[1]: ureadahead.service fails on vanilla kernels, needs Ubuntu
  kernel patch

Status in ureadahead package in Ubuntu:
  Invalid

Bug description:
  dmesg:
  [    4.717252] systemd[1]: ureadahead.service failed.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: systemd 219-4ubuntu3
  Uname: Linux 4.0.0-040000rc2-generic x86_64
  ApportVersion: 2.16.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Mar  6 08:55:40 2015
  InstallationDate: Installed on 2014-09-25 (162 days ago)
  InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140923)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 530U3C/530U4C
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.0.0-040000rc2-generic root=UUID=0fb75fae-baa3-428b-ace4-498e69ff7fb6 ro rootflags=subvol=@ quiet splash nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw nomdmonddf nomdmonisw vt.handoff=7 init=/lib/systemd/systemd
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/15/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: P14AAJ
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: SAMSUNG_NP1234567890
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrP14AAJ:bd04/15/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn530U3C/530U4C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 530U3C/530U4C
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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