[Bug 902491] Re: Severe regression with latest kernel update: 3.0.0-14.23 takes an unreasonable amount of time to boot due to udev

[Sergio Callegari]

3.0.0-13 is the latest kernel that is booting fine.

3.0.0-14 does not, nor does 3.2RC4

However I am not extremely comfortable at opening an upstream kernel
bug.  The following points are unclear to me:

1) I have a strong suspicion that the issue I am running into is caused
by a subtle timing issue. This suspicion is supported by the fact that
other machines that I have, with a very similar configuration boot just
fine.  Maybe it is not that -14 is buggy, but only that it does
something differently enough from -13 to alter timings, so that two
events that are very closely spaced swap their order

2) It is unclear to me whether the bug is in the kernel, in udev or in
lvm2.  It looks like the timing relationships between the 3 is still
object of investigation in Bug #802626. Specifically, it appears to me
that debian derivatives run udev rules regarding lvm through watershed
which is possibly a situation different from other distros.

3) It is unclear to me which upstream kernel version to report the bug
against. Which upstream kernel does the ubuntu -14 correspond to?

Maybe some ubuntu kernel developer could have sounder grounds to opening
an upstream bug than me.

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Title:
  Severe regression with latest kernel update: 3.0.0-14.23 takes an
  unreasonable amount of time to boot due to udev

Status in “linux” package in Ubuntu:
  Triaged
Status in “lvm2” package in Ubuntu:
  New
Status in “udev” package in Ubuntu:
  New

Bug description:
  After the kernel update the machine takes ages to boot.  At first I
  thought that the machine was not booting at all, but in fact it is,
  only taking an absurd amount of time where no disk activity is shown.

  The boot appears to hang at /scripts/init-bottom.

  The same symptom is present with the 3.2RC4 kernel on the mainline
  ppa.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-14-generic 3.0.0-14.23
  ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
  Uname: Linux 3.0.0-14-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  ArecordDevices:
   Home directory /home/callegar not ours.
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  callegar   2406 F.... pulseaudio
   /dev/snd/seq:        timidity   5021 F.... timidity
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6adc000 irq 48'
     Mixer name	: 'Intel Cantiga HDMI'
     Components	: 'HDA:111d76b2,1028024f,00100302 HDA:14f12c06,14f1000f,00100000 HDA:80862802,80860101,00100000'
     Controls      : 20
     Simple ctrls  : 12
  Date: Sat Dec 10 12:11:47 2011
  HibernationDevice: RESUME=UUID=14fe66c7-7c31-4fdb-9894-de7f5e8eca75
  InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
  MachineType: Dell Inc. Latitude E6500
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-14-generic root=/dev/mapper/group00-root ro recovery nomodeset
  PulseSinks:
   Error: command ['pacmd', 'list-sinks'] failed with exit code 1: Home directory /home/callegar not ours.
   No PulseAudio daemon running, or not running as session daemon.
  PulseSources:
   Error: command ['pacmd', 'list-sources'] failed with exit code 1: Home directory /home/callegar not ours.
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-14-generic N/A
   linux-backports-modules-3.0.0-14-generic  N/A
   linux-firmware                            1.60
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: Upgraded to oneiric on 2011-10-16 (54 days ago)
  dmi.bios.date: 08/19/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A24
  dmi.board.name: 0W612R
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA24:bd08/19/2010:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0W612R:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude E6500
  dmi.sys.vendor: Dell Inc.

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