[Bug 1269731] Re: init crashed with SIGSEGV

[Luke Yelavich]

What did you do to reproduce this segfault?

Secondly, the original syntax used with the test command is perfectly
valid in POSIX shell. Its even present in some of the system's important
init scripts. I even just tested this in a script myself.

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https://bugs.launchpad.net/bugs/1269731

Title:
  init crashed with SIGSEGV

Status in “alsa-utils” package in Ubuntu:
  Triaged
Status in “upstart” package in Ubuntu:
  Confirmed

Bug description:
  
  $ telinit U

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: upstart 1.11-0ubuntu1
  ProcVersionSignature: Ubuntu 3.12.0-8.16-generic 3.12.6
  Uname: Linux 3.12.0-8-generic x86_64
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  Date: Thu Jan 16 08:03:58 2014
  ExecutablePath: /sbin/init
  ExecutableTimestamp: 1384521990
  InstallationDate: Installed on 2012-12-22 (389 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  ProcCmdline: /sbin/init
  ProcCwd: /
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-3.12.0-8-generic root=UUID=8905185c-9d82-498c-970c-6fdb9ee07c45 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7f1191eb98d9:	mov    0x20(%rax),%rsi
   PC (0x7f1191eb98d9) ok
   source "0x20(%rax)" (0x00000020) not located in a known VMA region (needed readable region)!
   destination "%rsi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: upstart
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  Title: init crashed with SIGSEGV
  UpgradeStatus: Upgraded to trusty on 2013-06-19 (210 days ago)
  UpstartBugCategory: System
  UpstartRunningSystemVersion: init (upstart 1.11)
  UserGroups:
   
  _LogindSession: /
  _MarkForUpload: True
  modified.conffile..etc.NetworkManager.NetworkManager.conf: [modified]
  modified.conffile..etc.default.whoopsie: [modified]
  modified.conffile..etc.libvirt.qemu.networks.default.xml: [modified]
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2013-12-11T09:58:09.227262
  mtime.conffile..etc.default.whoopsie: 2013-12-19T16:30:43.528594
  mtime.conffile..etc.libvirt.qemu.networks.default.xml: 2013-06-29T21:43:59.656854

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