[Bug 963895]

[William-fleurant001]

Created attachment 71151
New crash information added by DrKonqi

kmix (4) on KDE Platform 4.8.2 (4.8.2) using Qt 4.8.1

- What I was doing when the application crashed:

This crash report was generated after the last song in the playlist
(amarok) completed. Please note that this crash may or may not be
related to having multiple channels (basic/hdmi and bluetooth/stereo
headset). I bet this crash is related because bluetooth pairing and kmix
channel-selection process (selecting hardware, and changing mono to
duplex or whatever) can also cause a segfault. Feels like the code
doesn't like new hardware changes when the dialog is queried and changes
are found (new bluetooth mixer). The [KCrash Handler] section below the
kernel/libg/pthread section is the sigsev i believe is segfaulting on
(perhaps) that event.

-- Backtrace (Reduced):
#7  0x00007fb0ef5f8e26 in MDWSlider::update (this=0x1198f50) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fb0ef5f464b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
[...]
#11 0x00007fb0ef5cdb0c in Mixer_Backend::readSetFromHW (this=0x1104770) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007fb0ef5dddf5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
[...]
#15 0x00007fb0e55f7a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so

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https://bugs.launchpad.net/bugs/963895

Title:
  kmix is crashing after multiple volume changes

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