[Bug 833891] Re: lvscan often times out during boot

[Serge Hallyn]

/proc/partitions:

major minor  #blocks  name

   8        0  312571224 sda
   8        1   29295616 sda1
   8        2   29296640 sda2
   8        3   29296640 sda3
   8        4          1 sda4
   8        5   78124032 sda5
   8        6    7811072 sda6
   8        7  138742784 sda7
 253        0   20971520 dm-0
 253        1   10485760 dm-1

/proc/mdstat:

Personalities : 
unused devices: <none>

vgs output:
  VG       #PV #LV #SN Attr   VSize   VFree  
  schroots   1   2   0 wz--n- 132.31g 102.31g

lvs output:
  LV       VG       Attr   LSize  Origin Snap%  Move Log Copy%  Convert
  isos     schroots -wi-ao 10.00g                                      
  schroots schroots -wi-ao 20.00g                                      

fstab:
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    nodev,noexec,nosuid 0       0
# / was on /dev/sda1 during installation
UUID=02d11fd6-e779-42ff-8779-f45177bb5fd2 /               xfs     defaults        0       1
# /home was on /dev/sda5 during installation
UUID=26218024-89b0-4c9a-844e-68eb3b3dd31e /home           xfs     defaults        0       2
# swap was on /dev/sda6 during installation
UUID=785ee8dc-a987-46df-92e6-32c685324d72 none            swap    sw              0       0
tmpfs /var/lib/schroot/union/overlay/ tmpfs defaults 0 0
/dev/schroots/schroots /srv/devel ext3 defaults,relatime 0 0
/dev/schroots/isos /iso ext4 defaults,relatime 0 0

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https://bugs.launchpad.net/bugs/833891

Title:
  lvscan often times out during boot

Status in “udev” package in Ubuntu:
  New

Bug description:
  I'm not 100% certain that mountall is the problem, but seems a good
  place to start.

  I have some LVM partitions on my laptop, and some filesystems on there
  are mounted through fstab:

  /dev/schroots/schroots /srv/devel ext3 defaults,relatime 0 0
  /dev/schroots/isos /iso ext4 defaults,relatime 0 0

  Often (1/3 of the time?) boot hangs, and after a minute or so I get a
  message saying something about watershed and lvscan timing out.  Then
  it proceeds to mount everything readonly.

  Other times boot proceeds with no problem.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: mountall 2.31
  ProcVersionSignature: Ubuntu 3.0.0-9.12-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Thu Aug 25 10:56:52 2011
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110627.1)
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: mountall
  UpgradeStatus: No upgrade log present (probably fresh install)

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