Opened 13 years ago

Closed 13 years ago

#4730 closed defect (fixed)

mythfrontend.real crashed with SIGSEGV in memcpy()

Reported by: david.morris@… Owned by: Isaac Richards
Priority: minor Milestone: unknown
Component: mythphone Version: unknown
Severity: medium Keywords:
Cc: Ticket locked: no


Bug moved upstream from Ubuntu, the package in use it was built against head at the time. Further files at

Binary package hint: mythtv

Attempted to use MythPhone? to call another computer on the lan (also using MythPhone?; both computers use the same current Hardy MythTV packages). Almost immediately after the call was connected, the frontend process died. The receiving computer's frontend kept running as if the caller was still connected.

Neither computer is set to register to a SIP server Both computers' microphone device is set to /dev/dsp Both computers' Webcam device is set to /dev/video0 with transmit and capture resolution set to 352x288, 30fps, 400Kbps. The sender's webcam is a Z-Star Microelectronics Corp ZC0303 WebCam? 0ac8:303b (vender is Vimicro) using the gspca.ko module (zc0301.ko is not correct for this device despite the similar name) The receiver's webcam is the Virtual Video Device (vivi.ko) since it lacks a real webcam Both devices function without incident using other applications (e.g., Ekiga)

ProblemType?: Crash Architecture: amd64 Date: Tue Feb 12 10:58:18 2008 DistroRelease?: Ubuntu 8.04 ExecutablePath?: /usr/bin/mythfrontend.real NonfreeKernelModules?: nvidia ath_hal Package: mythtv-frontend 0.20.99+trunk15849-0ubuntu2 PackageArchitecture?: amd64 ProcCmdline?: /usr/bin/mythfrontend.real --logfile /var/log/mythtv/mythfrontend.log ProcCwd?: /home/genecide ProcEnviron?:

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games LANG=en_US.UTF-8 SHELL=/bin/bash

Signal: 11 SourcePackage?: mythtv StacktraceTop?:

memcpy () from /lib/ PhoneUIBox::TransmitLocalWebcamImage? () PhoneUIBox::customEvent () QObject::event () from /usr/lib/ QWidget::event () from /usr/lib/

Title: mythfrontend.real crashed with SIGSEGV in memcpy() Uname: Linux mythtv-livingroom 2.6.24-7-generic #1 SMP Thu Feb 7 00:56:31 UTC 2008 x86_64 GNU/Linux UserGroups?: adm admin audio cdrom dialout dip floppy lpadmin mythtv netdev plugdev powerdev sambashare scanner video

Change History (1)

comment:1 Changed 13 years ago by cpinkham

Resolution: fixed
Status: newclosed

(In [16237]) Validity check the result of H263EncodeFrame().

This closes #4730, but doesn't address other issues that MythPhone? has with video calls currently.

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