https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87362
--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
backtracing with GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
works for me, but it takes 20GB and 5 minutes to print a backtrace:
(gdb) bt
#0 0x00007ffff7bc915f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1 0x000055555556ea65 in mozilla::detail::ConditionVariableImpl::wait
(lock=..., this=0x7ffff6b57b18) at
/aux/hubicka/firefox-2018/gecko-new/mozglue/misc/Mutex_posix.cpp:199
#2
mozilla::detail::ConditionVariableImpl::wait_for(mozilla::detail::MutexImpl&,
mozilla::BaseTimeDuration<mozilla::TimeDurationValueCalculator> const&) ()
at
/aux/hubicka/firefox-2018/gecko-new/mozglue/misc/ConditionVariable_posix.cpp:127
#3 0x00007fffeac0acc9 in
mozilla::OffTheBooksCondVar::Wait(mozilla::BaseTimeDuration<mozilla::TimeDurationValueCalculator>)
(aDuration=..., this=0x7ffff6b57b10)
at /aux/hubicka/firefox2-2018-gcc8-O3-lto/dist/include/mozilla/CondVar.h:72
#4
mozilla::Monitor::Wait(mozilla::BaseTimeDuration<mozilla::TimeDurationValueCalculator>)
(aDuration=..., this=0x7ffff6b57ae8)
at /aux/hubicka/firefox2-2018-gcc8-O3-lto/dist/include/mozilla/Monitor.h:40
#5 TimerThread::Run() () at
/aux/hubicka/firefox-2018/gecko-new/xpcom/threads/TimerThread.cpp:549
#6 0x00007fffeac9986f in nsThread::ProcessNextEvent(bool, bool*) [clone
.part.512] () at
/aux/hubicka/firefox-2018/gecko-new/xpcom/threads/nsThread.cpp:1161
#7 0x00007fffe72762ac in NS_ProcessNextEvent(nsIThread*, bool) [clone
.constprop.30360] (aThread=<optimized out>, aMayWait=true)
at /aux/hubicka/firefox-2018/gecko-new/xpcom/threads/nsThreadUtils.cpp:519
#8 0x00007fffea65426d in
mozilla::ipc::MessagePumpForNonMainThreads::Run(base::MessagePump::Delegate*)
() at /aux/hubicka/firefox-2018/gecko-new/ipc/glue/MessagePump.cpp:364
#9 0x00007fffea64d077 in MessageLoop::RunInternal (this=<optimized out>) at
/aux/hubicka/firefox-2018/gecko-new/ipc/chromium/src/base/message_loop.cc:591
#10 MessageLoop::RunHandler (this=<optimized out>) at
/aux/hubicka/firefox-2018/gecko-new/ipc/chromium/src/base/message_loop.cc:318
#11 MessageLoop::Run (this=<optimized out>) at
/aux/hubicka/firefox-2018/gecko-new/ipc/chromium/src/base/message_loop.cc:298
#12 0x00007fffeac84bdc in nsThread::ThreadFunc(void*) () at
/aux/hubicka/firefox-2018/gecko-new/xpcom/threads/nsThread.cpp:464
#13 0x00007ffff7facfed in _pt_root (arg=0x7ffff6b5b940) at
/aux/hubicka/firefox-2018/gecko-new/nsprpub/pr/src/pthreads/ptthread.c:201
#14 0x00007ffff7bc3494 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007ffff6e64acf in clone () from /lib/x86_64-linux-gnu/libc.so.6
