[Bug 959352] Re: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries

[Benji York]

apport information

** Tags added: apport-collected precise staging

** Description changed:

  Ephemeral containers (but not non-ephemeral ones) have all of their
  /proc/*/maps entries prefixed with "/rootfs".  One problem this causes
  is that graphviz uses /proc/self/maps to locate its plugins.  That means
  that some of the plugins can not be loaded.
  
  To reproduce the problem with dot, run this command:
  
      dot -Tcmapx < /dev/null
  
  No output is expected, however because of the bug this output is
  produced:
  
      Format: "cmapx" not recognized. Use one of: dia hpgl mif mp pcl pic
  vtx
  
  A workaround for the problem with graphviz is to make the plugins
  available at the path it is expecting:
  
      mkdir -p /rootfs/usr/lib
      ln -s /usr/lib/graphviz /rootfs/usr/lib/graphviz
+ --- 
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
+ ApportVersion: 1.95-0ubuntu1
+ Architecture: i386
+ DistroRelease: Ubuntu 12.04
+ HibernationDevice: RESUME=UUID=2c5f282a-e713-4ae0-a940-87a40efd050f
+ InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
+ MachineType: LENOVO 4313CTO
+ Package: lxc
+ ProcFB: 0 inteldrmfb
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic-pae root=UUID=8469c78f-d0fc-4564-a009-eed59bd1fdff ro quiet splash vt.handoff=7
+ ProcVersionSignature: Ubuntu 3.2.0-20.33-generic-pae 3.2.12
+ RfKill:
+  0: phy0: Wireless LAN
+  	Soft blocked: no
+  	Hard blocked: no
+ StagingDrivers: mei
+ Tags:  precise staging
+ Uname: Linux 3.2.0-20-generic-pae i686
+ UpgradeStatus: Upgraded to precise on 2012-01-24 (63 days ago)
+ UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare
+ dmi.bios.date: 10/26/2010
+ dmi.bios.vendor: LENOVO
+ dmi.bios.version: 6MET81WW (1.41 )
+ dmi.board.name: 4313CTO
+ dmi.board.vendor: LENOVO
+ dmi.board.version: Not Available
+ dmi.chassis.asset.tag: No Asset Information
+ dmi.chassis.type: 10
+ dmi.chassis.vendor: LENOVO
+ dmi.chassis.version: Not Available
+ dmi.modalias: dmi:bvnLENOVO:bvr6MET81WW(1.41):bd10/26/2010:svnLENOVO:pn4313CTO:pvrThinkPadT510:rvnLENOVO:rn4313CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
+ dmi.product.name: 4313CTO
+ dmi.product.version: ThinkPad T510
+ dmi.sys.vendor: LENOVO

** Attachment added: "AcpiTables.txt"
   https://bugs.launchpad.net/bugs/959352/+attachment/2955072/+files/AcpiTables.txt

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Title:
  Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries

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