[Bug 818177] Re: boot failures as /dev is not transferred to /root (because 'udevadm exit' times out waiting for a deadlocked worker)

Launchpad Bug Tracker 818177 at bugs.launchpad.net
Mon Jan 23 12:32:30 UTC 2012


This bug was fixed in the package udev - 173-0ubuntu4.1

---------------
udev (173-0ubuntu4.1) oneiric-proposed; urgency=low

  [ Andy Whitcroft ]
  * debian/udev.initramfs-bottom: ignore timeout errors from udevadm we
    expect (and indeed requested) in certain failure modes.  If we do not we
    will bail out early and not transfer /dev into /root which is always
    fatal leading to unbootable machines.  (LP: #818177)
  * avoid-exit-deadlock-for-timely-events: avoid deadlock when exiting
    by continuing to handle events with timeliness requirements.
    The timeliness requirement will be violated if we ignore them which
    is highly undesirable.  Also these events are typically dependant
    events and may well block the events we are waiting on leading to
    boot delays and uninitialised devices.  (LP: #842560)
  * debian/udev.initramfs-bottom: increase the client-side timeout to
    better cope with potential timeout extension issues in udev.  We very
    much would prefer udev to time itself out and guarantee to have
    completed than take action ourselves.  Very worst case the timeout may
    be doubled from the default of 60s so increase ours accordingly.  Note,
    we should only ever trip this timeout when we are already in severe
    trouble.  (LP: #818177)
 -- Steve Langasek <steve.langasek at ubuntu.com>   Fri, 16 Dec 2011 14:10:02 -0800

** Changed in: udev (Ubuntu Oneiric)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/818177

Title:
  boot failures as /dev is not transferred to /root (because 'udevadm
  exit' times out waiting for a deadlocked worker)

Status in Release Notes for Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  Invalid
Status in “udev” package in Ubuntu:
  Fix Released
Status in “linux” source package in Oneiric:
  Invalid
Status in “udev” source package in Oneiric:
  Fix Released
Status in “linux” source package in Precise:
  Invalid
Status in “udev” source package in Precise:
  Fix Released

Bug description:
  After running a do-release-upgrade -d on a natty server, I'm unable to
  boot the machine properly.

  It looks like it doesn't see the local disks anymore.

  I think this looks quite a lot like the debbug linked from here:
  https://bugs.launchpad.net/ubuntu/oneiric/+source/linux/+bug/746751

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-7-server 3.0.0-7.8
  ProcVersionSignature: Ubuntu 3.0.0-7.8-server 3.0.0
  Uname: Linux 3.0.0-7-server x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 2011-07-29 13:34 seq
   crw-rw---- 1 root audio 116, 33 2011-07-29 13:34 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Date: Fri Jul 29 13:40:10 2011
  HibernationDevice: RESUME=UUID=844d17fa-ff69-4250-844b-33b930236c56
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
  MachineType: HP ProLiant DL380 G5
  PciMultimedia:
   
  ProcEnviron:
   LANGUAGE=en_US:
   PATH=(custom, user)
   LANG=en_US
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-7-server root=/dev/mapper/User Name-root ro INIT_VERBOSE=yes
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-7-server N/A
   linux-backports-modules-3.0.0-7-server  N/A
   linux-firmware                          1.56
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: Upgraded to oneiric on 2011-07-29 (0 days ago)
  dmi.bios.date: 06/28/2007
  dmi.bios.vendor: HP
  dmi.bios.version: P56
  dmi.chassis.type: 23
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrP56:bd06/28/2007:svnHP:pnProLiantDL380G5:pvr:cvnHP:ct23:cvr:
  dmi.product.name: ProLiant DL380 G5
  dmi.sys.vendor: HP

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