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[Alexander Amelkin <1373221@xxxxxxxxxxxxxxxxxx>]

On Ubuntu 14.04.2 LTS (kernel 3.13.0-45 x86_64) with STK1160 USB capture
device and the latest testing (as well as stable) version of guvcview, I
get the following:

spirit@myrth:~$ guvcview
GUVCVIEW: version 2.0.1
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (UVCIOC_CTRL_MAP) Error: Inappropriate ioctl for device
V4L2_CORE: (VIDIOC_ENUM_FRAMESIZES) - Error enumerating frame sizes
v4L2_CORE: Unable to enumerate frame sizes :Inappropriate ioctl for device
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
bt_audio_service_open: connect() failed: Connection refused (111)
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
Segmentation fault (core dumped)

Attached please find an strace log. I can also attach a core file if you
want, but it is 25 megabytes.

** Attachment added: "strace log"
   https://bugs.launchpad.net/ubuntu/+source/guvcview/+bug/1373221/+attachment/4348541/+files/strace.log

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https://bugs.launchpad.net/bugs/1373221

Title:
  guvcview crashed with SIGSEGV in get_ctrl_by_id()

Status in GTK uvc viewer:
  Confirmed
Status in One Hundred Papercuts:
  Triaged
Status in libv4l v4l-utils:
  Confirmed
Status in guvcview package in Ubuntu:
  Triaged
Status in v4l-utils package in Ubuntu:
  Triaged

Bug description:
  HOW TO REPRODUCE:
  - Launch guvcview

  EXPECTED BEHAVIOUR:
  - The application to start normally.

  REAL BEHAVIOUR:
  - The application crashes.

  ProblemType: Crash
  DistroRelease: Ubuntu 14.10
  Package: guvcview 1.7.3-1.1build2
  ProcVersionSignature: Ubuntu 3.16.0-17.23-generic 3.16.3
  Uname: Linux 3.16.0-17-generic x86_64
  ApportVersion: 2.14.7-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Wed Sep 24 06:35:20 2014
  ExecutablePath: /usr/bin/guvcview
  InstallationDate: Installed on 2013-05-21 (490 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  ProcCmdline: guvcview
  SegvAnalysis:
   Segfault happened at: 0x42d970:	mov    0x0,%eax
   PC (0x0042d970) ok
   source "0x0" (0x00000000) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: guvcview
  StacktraceTop:
   ?? ()
   ?? ()
   ?? ()
   ?? ()
   __libc_start_main (main=0x409920, argc=1, argv=0x7fff32c34208, init=<optimised out>, fini=<optimised out>, rtld_fini=<optimised out>, stack_end=0x7fff32c341f8) at libc-start.c:287
  Title: guvcview crashed with SIGSEGV in __libc_start_main()
  UpgradeStatus: Upgraded to utopic on 2014-09-24 (0 days ago)
  UserGroups: adm lpadmin sambashare sudo

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