[Bug 806248] [NEW] unity::TimeUtil::TimeDelta returns an int value which overflows after 24 days of uptime

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Chris J Arges (arges):

[Impact]

Icons disappearing after int32 delta time variable overflows in 24 days.

[Test Case]

Run the automated test to simulate what happens after to the timedelta
~24 days of Unity running.

[Regression Potential]

Low - only the datatype is changed and an automated test is included.

---

unity::TimeUtil::TimeDelta is used throughout Unity to compute time
differences in milliseconds between events. Unfortunately, TimeDelta
returns an int value, which can only express differences up to ~ 24
days. So after 24 days of uptime, Unity breaks. The breakage is
described in the comments.

Original description:
This issue, to me, is the same issue as https://bugs.launchpad.net/ubuntu/+source/unity/+bug/762478.  However a poster on their thinks this is only related to the nvidia graphics driver.  I tend to disagree, nonelethess I am filing a new bug for it.  The behavior is the same.  The icons are not showing up in the Unity launcher.  When I hover over them I can read the icon's "name" and clicking on it works.  I tried unity --reset, unity --reset-icons, sudo restart gdm and finally only resetting my entire system fixed the issue (although the icons are back to their default now -- none of my custom icons are appearing).  I do not have an NVIDIA graphics card, but rather, a built-in Intel one.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.16-0ubuntu1~natty1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
CompositorRunning: compiz
CurrentDmesg:
 [   29.030016] eth0: no IPv6 routers present
 [   37.298652] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,commit=0
 [   85.910008] CE: hpet2 increased min_delta_ns to 7500 nsec
 [   85.910015] CE: hpet2 increased min_delta_ns to 11250 nsec
 [   85.910018] hrtimer: interrupt took 3365 ns
Date: Tue Jul  5 16:29:05 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e12] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:0420]
   Subsystem: Dell Device [1028:0420]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Dell Inc. OptiPlex 780
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=ebecbd9e-5adf-43ce-bc96-964abb961f59 ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.42-generic 2.6.38.2
ProcVersionSignature__: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Renderer: Unknown
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/03/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0C27VV
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd11/03/2010:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn0C27VV:rvrA02:cvnDellInc.:ct6:cvr:
dmi.product.name: OptiPlex 780
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
version.ia32-libs: ia32-libs 20090808ubuntu13
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

** Affects: unity
     Importance: High
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: Fix Committed

** Affects: unity/4.0
     Importance: High
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: In Progress

** Affects: unity/5.0
     Importance: High
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: Fix Committed

** Affects: unity/6.0
     Importance: High
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: Fix Committed

** Affects: unity (Ubuntu)
     Importance: High
     Assignee: Brandon Schaefer (brandontschaefer)
         Status: Fix Released

** Affects: unity (Ubuntu Precise)
     Importance: High
     Assignee: Chris J Arges (arges)
         Status: In Progress

** Affects: unity (Ubuntu Quantal)
     Importance: High
     Assignee: Timo Jyrinki (timo-jyrinki)
         Status: Fix Released


** Tags: amd64 apport-bug compiz-0.9 natty precise running-unity ubuntu verification-done
-- 
unity::TimeUtil::TimeDelta returns an int value which overflows after 24 days of uptime
https://bugs.launchpad.net/bugs/806248
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