id summary reporter owner description type status priority milestone component version severity resolution keywords cc mlocked 10981 Commit 643ad3e [Fix race in LoadInBackground() handling] causes abort on entering Watch Recordings Lawrence Rust Daniel Kristjansson "Using a debug build of Qt, entering the watch recordings menu, mythfrontend aborts with this log: {{{ 2012-08-07 11:40:41.754876 C Received Aborted QMutex::lock: Deadlock detected in thread 2985436960 Aborted (core dumped) }}} Backtrace: {{{ Program terminated with signal 6, Aborted. #0 0xb76e9424 in __kernel_vsyscall () (gdb) bt #0 0xb76e9424 in __kernel_vsyscall () #1 0xb249ae71 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #2 0xb249e34e in abort () at abort.c:92 #3 0xb277a30f in qt_message_output (msgType=QtFatalMsg, buf=0xa561088 ""ASSERT failure in QMutex::unlock(): \""A mutex must be unlocked in the same thread that locked it.\"", file thread/qmutex.cpp, line 370"") at global/qglobal.cpp:2259 #4 0xb277a48e in qt_message (msgType=QtFatalMsg, msg=0xb28e6940 ""ASSERT failure in %s: \""%s\"", file %s, line %d"", ap=0xa2ca9234 ""\261|\216\262 }\216\262d|\216\262r\001"") at global/qglobal.cpp:2305 #5 0xb277a549 in qFatal ( msg=0xb28e6940 ""ASSERT failure in %s: \""%s\"", file %s, line %d"") at global/qglobal.cpp:2488 #6 0xb277a587 in qt_assert_x (where=0xb28e7cb1 ""QMutex::unlock()"", what=0xb28e7d20 ""A mutex must be unlocked in the same thread that locked it."", file=0xb28e7c64 ""thread/qmutex.cpp"", line=370) at global/qglobal.cpp:2012 #7 0xb277e2df in QMutex::unlock (this=0xa5fb7f8) at thread/qmutex.cpp:369 #8 0xb5b8a11f in ScreenLoadTask::run (this=0xa2e0de0) at mythscreentype.cpp:33 #9 0xb5d28a06 in MPoolThread::run (this=0xa600910) at mthreadpool.cpp:87 #10 0xb5d25f74 in MThreadInternal::run (this=0xa1afd00) at mthread.cpp:79 #11 0xb27832e0 in QThreadPrivate::start (arg=0xa1afd00) at thread/qthread_unix.cpp:266 #12 0xb2705e99 in start_thread (arg=0xa2ca9b70) at pthread_create.c:304 #13 0xb25419ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 }}} Appears that the new mutex is being unlocked by a thread other than the one that locked it." Bug Report - General closed minor 0.26 MythTV - General Master Head medium fixed 0