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[Apport retracing service <1544450@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1538300 ***
    https://bugs.launchpad.net/bugs/1538300

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1538300, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

** Attachment removed: "CoreDump.gz"
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** Attachment removed: "Disassembly.txt"
   https://bugs.launchpad.net/bugs/1544450/+attachment/4569112/+files/Disassembly.txt

** Attachment removed: "ProcMaps.txt"
   https://bugs.launchpad.net/bugs/1544450/+attachment/4569115/+files/ProcMaps.txt

** Attachment removed: "ProcStatus.txt"
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** Attachment removed: "Registers.txt"
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** Attachment removed: "Stacktrace.txt"
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** Attachment removed: "ThreadStacktrace.txt"
   https://bugs.launchpad.net/bugs/1544450/+attachment/4569119/+files/ThreadStacktrace.txt

** This bug has been marked a duplicate of private bug 1538300

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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Phonedations bugs, which is subscribed to ofono in Ubuntu.
https://bugs.launchpad.net/bugs/1544450

Title:
  ofonod crashed with SIGSEGV in ofono_modem_remove()

Status in ofono package in Ubuntu:
  New

Bug description:
  on removing external usb bluetooth 4 adapter

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: ofono 1.17.bzr6910+16.04.20160115.3-0ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-4.19-generic 4.4.1
  Uname: Linux 4.4.0-4-generic x86_64
  ApportVersion: 2.19.4-0ubuntu2
  Architecture: amd64
  Date: Thu Feb 11 08:40:59 2016
  ExecutablePath: /usr/sbin/ofonod
  InstallationDate: Installed on 2015-11-12 (90 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151112)
  ProcCmdline: /usr/sbin/ofonod -P ril --nodetach
  SegvAnalysis:
   Segfault happened at: 0x4a2588:	mov    (%rax),%esi
   PC (0x004a2588) ok
   source "(%rax)" (0x00000001) not located in a known VMA region (needed readable region)!
   destination "%esi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: ofono
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ofono_modem_remove ()
   ?? ()
  Title: ofonod crashed with SIGSEGV in ofono_modem_remove()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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