Public bug reported:

This morning, synaptic offered 2 candidates after clicking on Mark All
Upgrades.

Both were for initramfs.

After the upgrades were completed, I logged out of the admin account and
into the regular user account.

The regular account is very sluggish.  The 4 CPU cores consume between
0-50% at idle with no app running.

The time scale of the System Monitor is 15 seconds vs. the usual 60
seconds.

Booting into the admin account shows everything is normal.  Switching to
the regular account triggers the excessive CPU consumption.  The
Processes and Resources tabs of System Monitor are attached.  I briefly
saw a kworker process at 100% CPU.

As is, this system is no longer viable.

An urgent response would be appreciated.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: initramfs-tools 0.103ubuntu4.3
ProcVersionSignature: Ubuntu 3.19.0-56.62~14.04.1-generic 3.19.8-ckt15
Uname: Linux 3.19.0-56-generic i686
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: i386
CurrentDesktop: Unity
Date: Fri Mar 25 08:22:24 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-04-29 (695 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 trusty

** Attachment added: "Screenshot from 2016-03-25 08:45:50.png"
   
https://bugs.launchpad.net/bugs/1561973/+attachment/4611160/+files/Screenshot%20from%202016-03-25%2008%3A45%3A50.png

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https://bugs.launchpad.net/bugs/1561973

Title:
  initramfs upgrade slows system severely

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