[Bug 1573307]

[Apport retracing service]

StacktraceTop:
 __memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:161
 memset (__len=18446744073709551615, __ch=32, __dest=0x562969119a30) at /usr/include/x86_64-linux-gnu/bits/string3.h:90
 create_image (bp=bp at entry=0x56296911c450, dl_total_time=4.3320905730000003, done=done at entry=false) at ../../src/progress.c:1167
 bar_draw (progress=0x56296911c450) at ../../src/progress.c:658
 fd_read_body (downloaded_filename=<optimized out>, fd=fd at entry=4, out=out at entry=0x56296911a0f0, toread=1485881344, startpos=<optimized out>, qtyread=qtyread at entry=0x7ffed2993620, qtywritten=0x7ffed29935d0, elapsed=0x7ffed2993628, flags=1, out2=0x0) at ../../src/retr.c:417

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https://bugs.launchpad.net/bugs/1573307

Title:
  wget crashed with SIGSEGV in __memset_avx2()

Status in wget package in Ubuntu:
  New

Bug description:
  When I try to download a big file with wget on Ubuntu 16.04 it crashes
  after a couple seconds.

  To reproduce the bug try the following:

  wget http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso

  I've asked another guy on IRC on channel #ubuntu-it to try and reproduce this bug
  and he said it was crashing also on his machine.

  evan at HPPC:~$ lsb_release -rd
  Description:	Ubuntu 16.04 LTS
  Release:	16.04

  evan at HPPC:~$ apt-cache policy wget
  wget:
    Installato: 1.17.1-1ubuntu1
    Candidato:  1.17.1-1ubuntu1
    Tabella versione:
   *** 1.17.1-1ubuntu1 500
          500 http://archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Crash
  DistroRelease: Ubuntu 16.04
  Package: wget 1.17.1-1ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Apr 22 01:34:10 2016
  ExecutablePath: /usr/bin/wget
  InstallationDate: Installed on 2016-04-21 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  ProcCmdline: wget http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso
  SegvAnalysis:
   Segfault happened at: 0x7f4eac3b7328 <__memset_avx2+392>:	rep stos %al,%es:(%rdi)
   PC (0x7f4eac3b7328) ok
   source "%al" ok
   destination "%es:(%rdi)" (0x562969134000) not located in a known VMA region (needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: wget
  StacktraceTop:
   __memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:161
   ?? ()
   ?? ()
   ?? ()
   ?? ()
  Title: wget crashed with SIGSEGV in __memset_avx2()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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