[Touch-packages] [Bug 1573307] Re: wget crashed with SIGSEGV in __memset_avx2()

2016-04-21 Thread Evan Garofalo 
I've downloaded the source package and debugged it... this seems related to a 
bug that is being discussed on the wget
mailing list at the following url: 
http://lists.gnu.org/archive/html/bug-wget/2016-02/msg00033.html

They say this happens with a small terminal window... but on me it happens no 
matter how big the terminal is...
i've tried to run wget with "quiet" mode and also chanding the progress from 
"bar" to "dot" and it works ...
anyways this is the backtrace done with gdb and you can see the padding is 
negative. Hope it helps :-)

evan@HPPC:~/Scaricati/wget-1.17.1/src$ gdb --args ./wget 
http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso
GNU gdb (Ubuntu 7.11-0ubuntu1) 7.11
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./wget...done.

(gdb) run
Starting program: /home/evan/Scaricati/wget-1.17.1/src/wget 
http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso
--2016-04-22 02:31:01--  
http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso
Risoluzione di releases.ubuntu.com... 91.189.92.163, 2001:6b0:e:2018::1337
Connessione a releases.ubuntu.com|91.189.92.163|:80... connesso.
Richiesta HTTP inviata, in attesa di risposta... 302 Found
Posizione: http://d3f216qdpm0le3.cloudfront.net/ubuntu-16.04-desktop-amd64.iso 
[segue]
--2016-04-22 02:31:01--  
http://d3f216qdpm0le3.cloudfront.net/ubuntu-16.04-desktop-amd64.iso
Risoluzione di d3f216qdpm0le3.cloudfront.net... 54.192.25.79, 54.192.25.232, 
54.192.25.72, ...
Connessione a d3f216qdpm0le3.cloudfront.net|54.192.25.79|:80... connesso.
Richiesta HTTP inviata, in attesa di risposta... 200 OK
Lunghezza: 1485881344 (1,4G) [application/x-iso9660-image]
Salvataggio in: "ubuntu-16.04-desktop-amd64.iso.1"

ubuntu-16.04-desktop-amd64.iso.1 0%[
  ]   2,74M   996KB/s   

Program received signal SIGSEGV, Segmentation fault.
__memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:161
161 ../sysdeps/x86_64/multiarch/memset-avx2.S: File o directory non 
esistente.

(gdb) backtrace 
#0  __memset_avx2 () at ../sysdeps/x86_64/multiarch/memset-avx2.S:161
#1  0x00431ac2 in create_image (bp=0x690220, 
dl_total_time=3,01723972, done=false) at progress.c:1167
#2  0x00430950 in bar_draw (progress=0x690220) at progress.c:658
#3  0x0042fd62 in progress_update (progress=0x690220, howmuch=1440, 
dltime=3,01723972) at progress.c:188
#4  0x00435689 in fd_read_body (downloaded_filename=0x688040 
"ubuntu-16.04-desktop-amd64.iso.1", fd=4, out=0x68dfb0, toread=1485881344, 
startpos=0, 
qtyread=0x7fffd940, qtywritten=0x7fffd8f0, elapsed=0x7fffd948, 
flags=1, out2=0x0) at retr.c:417
#5  0x00421761 in read_response_body (hs=0x7fffd8f0, sock=4, 
fp=0x68dfb0, contlen=1485881344, contrange=0, chunked_transfer_encoding=false, 
url=0x68d630 
"http://d3f216qdpm0le3.cloudfront.net/ubuntu-16.04-desktop-amd64.iso;, 
warc_timestamp_str=0x7fffd5d0 "]", warc_request_uuid=0x7fffd5f0 "Y", 
warc_ip=0x0, type=0x68ce70 "application/x-iso9660-image", statcode=200, 
head=0x68cb80 "HTTP/1.1 200 OK\r\nContent-Type: 
application/x-iso9660-image\r\nContent-Length: 1485881344\r\nConnection: 
keep-alive\r\nDate: Thu, 21 Apr 2016 13:53:05 GMT\r\nCache-Control: 
public,max-age=259200\r\nLast-Modified"...) at http.c:1682
#6  0x00425c39 in gethttp (u=0x687fd0, hs=0x7fffd8f0, 
dt=0x7fffdcc8, proxy=0x0, iri=0x6863c0 , count=1) at http.c:3753
#7  0x00426378 in http_loop (u=0x687fd0, original_url=0x687c80, 
newloc=0x7fffdbb8, local_file=0x7fffdbc0, referer=0x0, 
dt=0x7fffdcc8, proxy=0x0, 
iri=0x6863c0 ) at http.c:3971
#8  0x0043608b in retrieve_url (orig_parsed=0x687c80, origurl=0x6885e0 
"http://releases.ubuntu.com/16.04/ubuntu-16.04-desktop-amd64.iso;, 
file=0x7fffdcf8, 
newloc=0x7fffdd00, refurl=0x0, dt=0x7fffdcc8, recursive=false, 
iri=0x6863c0 , register_status=true) at retr.c:817
#9  0x0042ecd6 in main (argc=2, argv=0x7fffdf28) at main.c:1868

(gdb) frame 1
#1  0x00431ac2 in create_image (bp=0x690220, 
dl_total_time=3,01723972, done=false) at progress.c:1167
1167  memset (p, ' ', padding);

(gdb) print p
$1 = 0x690499 ' ' ...

[Touch-packages] [Bug 1573307] [NEW] wget crashed with SIGSEGV in __memset_avx2()

2016-04-21 Thread Evan Garofalo 
Public bug reported:

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

evan@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

** Affects: wget (Ubuntu)
 Importance: Undecided
 Status: New


** Tags: amd64 apport-crash need-amd64-retrace xenial

** Information type changed from Private to Public

-- 
You received this bug notification because you are a member of Ubuntu
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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@HPPC:~$ lsb_release -rd
  Description:  Ubuntu 16.04 LTS
  Release:  16.04

  evan@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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