mythfrontend.real crashed with SIGSEGV in memcpy()

Bug #191291 reported by Jesse Burt on 2008-02-12
6
Affects Status Importance Assigned to Milestone
MythTV
Fix Released
Unknown
mythplugins (Ubuntu)
Medium
Unassigned

Bug Description

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/libc.so.6
 PhoneUIBox::TransmitLocalWebcamImage ()
 PhoneUIBox::customEvent ()
 QObject::event () from /usr/lib/libqt-mt.so.3
 QWidget::event () from /usr/lib/libqt-mt.so.3
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

Related branches

Jesse Burt (avsa242) wrote :

StacktraceTop:memcpy () from /lib/libc.so.6
PhoneUIBox::TransmitLocalWebcamImage ()
PhoneUIBox::customEvent () from /usr/lib/mythtv/plugins/libmythphone.so
QObject::event (this=0x3fbd430, e=0x4a78630) at kernel/qobject.cpp:758
QWidget::event (this=0x3fbd430, e=0x4a78630) at kernel/qwidget.cpp:4681

Changed in mythtv:
importance: Undecided → Medium
Changed in mythtv:
status: Unknown → New
Changed in mythtv:
status: New → Fix Released
Changed in mythtv:
status: New → In Progress
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package mythplugins - 0.21.0~fixes16259-0ubuntu1

---------------
mythplugins (0.21.0~fixes16259-0ubuntu1) hardy; urgency=low

  * New upstream checkout.
    - Fixes mythphone crash (LP: #191291)
  * Add rules to revert mythmusic patch on builds older than hardy.
    This will allow for a clean backport to gutsy preventing faad breakage.
  * debian/control, debian/rules:
    - Remove mythappearance stuff, as it's absorbed into MythTV (LP: #195421)

 -- Mario Limonciello <email address hidden> Mon, 25 Feb 2008 21:48:36 -0600

Changed in mythplugins:
status: In Progress → Fix Released
Jesse Burt (avsa242) wrote :

Confirmed; this no longer crashes here. Thanks!

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