/usr/bin/lmms:11:QBasicAtomicInt::operator:ThreadableJob::state:FxMixer::masterMix:Mixer::renderNextBuffer:Mixer::fifoWriter::run

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding lmms. This problem was most recently seen with package version 1.1.3-7, the problem page at https://errors.ubuntu.com/problem/f8d1fd71ea0fc2aa974be5e3d8a55d45ace5171a contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.