Comment 35 for bug 1373221

Revision history for this message
Paulo Assis (pj-assis) wrote : Re: [Bug 1373221] Re: guvcview crashed with SIGSEGV in get_ctrl_by_id()

Hi,
1.7.3 won't work with kernels >=3.16, you will need a newer version,
uvcvideo suffered a regression that will only be fixed (hopefully) in
3.18, the developer already posted a patch to fix it.
I'll make a new release (2.0.1) in the next couple of days with a
workaround for this. you will need this version to get guvcview up and
running with uvcvideo devices.

Note: libv4l2 (1.4.0 and 1.5.0) is also broken, a fix is expected in
1.6.0, but you will be able to disable its use in guvcview in this
version.

Regards,
Paulo

2014-10-01 0:08 GMT+01:00 Alberto Salvia Novella <email address hidden>:
> ** Description changed:
>
> - Just launched the application and crashed.
> + 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
> + 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
> + ?? ()
> + ?? ()
> + ?? ()
> + ?? ()
> + __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
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1373221
>
> Title:
> guvcview crashed with SIGSEGV in get_ctrl_by_id()
>
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