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[georg <georg@xxxxxxxxxxxx>]

I can confirm segfaults after updating the kernel to 3.13.0-59 on
various 64 Bit machines. Its related to shelling out commands from 32
bit executables. In my case its a proprietary program, but its
reproducible with the following steps:

    $ apt-get install gcc-multilib
    $ cat test.c 
    #include "stdlib.h"
    int main()
    {
        system("/bin/echo Hello World");
    }
    $ gcc -m64 test.c
    Hello World
    $ gcc -m32 test.c
    $ ./a.out # Program is crashing here
    $ dmesg|tail -n 1
    [  102.260840] sh[2283]: segfault at 3dbb92d0 ip 000000003dbb92d0 sp 00000000b366e850 error 14 in ld-2.19.so[7f573dbb8000+23000]

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https://bugs.launchpad.net/bugs/1479093

Title:
  Segfault in ld-2.19.so while starting Steam after upgrade to
  3.13.0-59.98

Status in linux package in Ubuntu:
  Invalid
Status in linux-lts-utopic package in Ubuntu:
  Invalid
Status in linux-lts-vivid package in Ubuntu:
  Invalid
Status in linux source package in Trusty:
  Confirmed
Status in linux-lts-utopic source package in Trusty:
  Invalid
Status in linux-lts-vivid source package in Trusty:
  Invalid
Status in linux source package in Vivid:
  Invalid
Status in linux-lts-utopic source package in Vivid:
  Invalid
Status in linux-lts-vivid source package in Vivid:
  Invalid
Status in linux source package in Wily:
  Invalid
Status in linux-lts-utopic source package in Wily:
  Invalid
Status in linux-lts-vivid source package in Wily:
  Invalid

Bug description:
  The previous kernel 3.13.0-58.97 does not show the issue when booting back into it. Currently only noticed on starting Steam but there its is reproducable every time on X230 laptop (Intel graphics). Might be related to Steam using 32bit libraries.
  Attaching some log and dump that steam produces but fails to upload (wherever).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-59-generic 3.13.0-59.98
  ProcVersionSignature: Ubuntu 3.13.0-59.98-generic 3.13.11-ckt22
  Uname: Linux 3.13.0-59-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  smb        2678 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Jul 28 21:42:17 2015
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=7aacd0c3-12d4-4f50-baf7-e1fd8f871f95
  InstallationDate: Installed on 2013-07-25 (733 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MachineType: LENOVO 2324CTO
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-59-generic.efi.signed root=UUID=5d3281d3-0142-4039-bb9b-28653778aca0 ro quiet splash mmc-core.removable=0 nomdmonddf nomdmonisw vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-59-generic N/A
   linux-backports-modules-3.13.0-59-generic  N/A
   linux-firmware                             1.127.14
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-29 (455 days ago)
  dmi.bios.date: 04/30/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ET94WW (2.54 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2324CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Win8 Pro DPK TPG
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ET94WW(2.54):bd04/30/2013:svnLENOVO:pn2324CTO:pvrThinkPadX230:rvnLENOVO:rn2324CTO:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2324CTO
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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