Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/bin/hhvm --config /etc/hhvm/server.ini --mode server'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 HPHP::ObjectData::toArray (this=this@entry=0x7f7af409f100, pubOnly=pubOnly@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/object-data.cpp:531
Thread 23 (Thread 0x7f7badfff700 (LWP 19278)):
#0 sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:85
#1 0x00000000016a4e58 in HPHP::s_waitThread (arg=0x286ef08 <HPHP::Xenon::getInstance()::instance+8>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/xenon/ext_xenon.cpp:44
#2 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb67339c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#3 0x00007f7bbec4f182 in start_thread (arg=0x7f7badfff700) at pthread_create.c:312
#4 0x00007f7bbe15c47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 22 (Thread 0x7f7b01fff700 (LWP 19312)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409f38, id=id@entry=0, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409f38, id=id@entry=0, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409f38, id=id@entry=0, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b01ffa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b01ffa40f, inc=true, q=0, id=0, this=0x7f7bb3409f38) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b16a16380) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb642e000) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb642e000) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7b370841a0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b01fff700) at pthread_create.c:312
Thread 21 (Thread 0x7f7b98fff700 (LWP 19289)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=0, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=0, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=0, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b98ffa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b98ffa40f, inc=true, q=0, id=0, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7bb2357f40) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2375300) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2375300) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb2396e20) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b98fff700) at pthread_create.c:312
Thread 20 (Thread 0x7f7b4b3ff700 (LWP 19300)):
#0 memchr () at ../sysdeps/x86_64/memchr.S:45
#1 0x00007f7bbe9fcd54 in find (__a=@0x7f7b375d5188: 83 'S', __n=1, __s=0x7f7bbf6d7784 "/") at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/char_traits.h:263
#2 std::string::find_last_of (this=this@entry=0x7f7b4b3f9350, __s=__s@entry=0x7f7bbf6d7784 "/", __pos=<optimized out>, __n=__n@entry=1) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:841
#3 0x00007f7bbf6d3ed6 in find_last_of (__pos=<optimized out>, __s=0x7f7bbf6d7784 "/", this=0x7f7b4b3f9350) at /usr/include/c++/4.8/bits/basic_string.h:2049
#4 filename_pos (end_pos=<optimized out>, str=...) at libs/filesystem/src/path.cpp:510
#5 boost::filesystem::path::m_parent_path_end (this=this@entry=0x7f7b4b3f9350) at libs/filesystem/src/path.cpp:328
#6 0x00007f7bbf6d5d1c in boost::filesystem::path::parent_path (this=this@entry=0x7f7b4b3f9350) at libs/filesystem/src/path.cpp:349
#7 0x0000000000e9bca4 in branch_path (this=0x7f7b4b3f9350) at /usr/include/boost/filesystem/path.hpp:484
#8 HPHP::inclOp(unsigned char const*&, HPHP::InclOpFlags)::{lambda()#1}::operator()() const (__closure=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:6723
#9 0x0000000000e9bca4 in iopReq (pc=<optimized out>)
Thread 19 (Thread 0x7f7ba97ff700 (LWP 19259)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x0000000000e45ef8 in HPHP::HttpServer::runOrExitProcess (this=0x7f7bb674c618) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/server/http-server.cpp:305
#2 0x0000000000cb4bb7 in start_server (username=..., xhprof=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/program-functions.cpp:991
#3 HPHP::execute_program_impl (argc=argc@entry=5, argv=argv@entry=0x7ffee0cdcf08) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/program-functions.cpp:1734
#4 0x0000000000cb58af in HPHP::execute_program (argc=argc@entry=5, argv=argv@entry=0x7ffee0cdcf08) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/program-functions.cpp:1040
#5 0x0000000000bf19e0 in main (argc=<optimized out>, argv=0x7ffee0cdcf08) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/hhvm/main.cpp:60
Thread 18 (Thread 0x7f7b81bff700 (LWP 19292)):
#0 0x00007f7bbe99e651 in __exchange_and_add (__val=-1, __mem=0x7f7b716b0230) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/ext/atomicity.h:49
#1 __exchange_and_add_dispatch (__val=-1, __mem=0x7f7b716b0230) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/ext/atomicity.h:82
#2 std::string::_Rep::_M_dispose (this=0x7f7b716b0220, __a=...) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.h:246
#3 0x00007f7bbe9fe046 in _M_dispose (__a=..., this=<optimized out>) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:504
#4 std::string::reserve (this=this@entry=0x7f7b81bf8a10, __res=<optimized out>, __res@entry=14) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:511
#5 0x00007f7bbe9fe0b8 in std::string::append (this=this@entry=0x7f7b81bf8a10, __str=...) at /build/buildd/gcc-4.8-4.8.2/build/x86_64-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:332
#6 0x0000000001d33cf2 in operator+<char, std::char_traits<char>, std::allocator<char> > (__rhs=..., __lhs=<unknown type in /usr/lib/debug/.build-id/75/d6fff71c565ef76b12f4bba179570cb1a22bbe.debug, CU 0x229fb307, DIE 0x22b07605>) at /usr/include/c++/4.8/bits/basic_string.h:2432
#7 HPHP::php_mysql_do_query (query=..., link_id=..., async_mode=async_mode@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/mysql/mysql_common.cpp:1414
#8 0x0000000001d33489 in HPHP::c_mysqli_ni_hh_real_query (this_=<optimized out>, query=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/mysql/ext_mysqli.cpp:306
#9 0x00000000038f4569 in ?? ()
Thread 17 (Thread 0x7f7b09fff700 (LWP 19308)):
#0 push (size=224, val=0x7f7af5d5afa0, this=0x7f7b09ffb720) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager-inl.h:159
#2 slabAlloc (index=<optimized out>, bytes=<optimized out>, this=0x7f7b09ffb6c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager.cpp:883
#3 HPHP::MemoryManager::mallocSmallSizeSlow (this=0x7f7b09ffb6c0, bytes=<optimized out>, index=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager.cpp:917
#4 0x0000000001d1eae1 in mallocSmallIndex (bytes=<optimized out>, index=<optimized out>, this=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager-inl.h:247
#5 mallocSmallSize (bytes=<optimized out>, this=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager-inl.h:258
#6 objMalloc (size=<optimized out>, this=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/memory-manager-inl.h:312
#7 reqAllocArray (scale=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/mixed-array-defs.h:426
#8 HPHP::MixedArray::CopyReserve (src=src@entry=0x7f7ba57ddb80, expectedSize=expectedSize@entry=5) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/mixed-array.cpp:1411
#9 0x0000000000d3997b in HPHP::MixedArray::PlusEq (ad=0x7f7ba57ddb80, elems=0x7f7af5d53f80) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/mixed-array.cpp:1517
Thread 16 (Thread 0x7f7b36bff700 (LWP 19302)):
#0 0x00007f7bbe14f12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f7bc46341cf in poll (__timeout=<optimized out>, __nfds=1, __fds=0x7f7b36bf93c0) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2 io_wait (ptr=ptr@entry=0x7f7b1b14b000, read_or_write=read_or_write@entry=MEM_READ) at libmemcached/io.cc:212
#3 0x00007f7bc463498c in memcached_io_read (ptr=0x7f7b1b14b000, buffer=0x7f7b36bf96e0, length=<optimized out>, nread=@0x7f7b36bf9478: 140169552622023) at libmemcached/io.cc:415
#4 0x00007f7bc46351a3 in memcached_io_readline (ptr=ptr@entry=0x7f7b1b14b000, buffer_ptr=buffer_ptr@entry=0x7f7b36bf96e0 "\001", size=350, size@entry=140167176231184, total_nr=@0x7f7b36bf94c8: 0) at libmemcached/io.cc:805
#5 0x00007f7bc46373f0 in textual_read_one_response (result=0x7f7b36bf9910, buffer_length=140167176231184, buffer=0x7f7b36bf96e0 "\001", instance=0x7f7b1b14b000) at libmemcached/response.cc:215
#6 _read_one_response (instance=instance@entry=0x7f7b1b14b000, buffer=buffer@entry=0x7f7b36bf96e0 "\001", buffer_length=buffer_length@entry=350, result=result@entry=0x7f7b36bf9910) at libmemcached/response.cc:809
#7 0x00007f7bc4637f5c in memcached_response (instance=instance@entry=0x7f7b1b14b000, buffer=buffer@entry=0x7f7b36bf96e0 "\001", buffer_length=buffer_length@entry=350, result=result@entry=0x7f7b36bf9910) at libmemcached/response.cc:883
#8 0x00007f7bc4631413 in memcached_fetch_result (ptr=0x7f7b4ca6ad00, result=0x7f7b36bf9910, error=0x7f7b36bf989c) at libmemcached/fetch.cc:198
#9 0x0000000001640a87 in HPHP::c_Memcached_ni_getmultibykey (this_=0x7f7b5e876560, server_key=..., keys=..., cas_tokens=..., flags=0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/memcached/ext_memcached.cpp:710
Thread 15 (Thread 0x7f7b707ff700 (LWP 19296)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=5, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=5, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=5, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b707fa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b707fa40f, inc=true, q=0, id=5, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7bb23b5940) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2375800) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2375800) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb2398860) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b707ff700) at pthread_create.c:312
Thread 14 (Thread 0x7f7b25fff700 (LWP 19305)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=13, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=13, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=13, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b25ffa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b25ffa40f, inc=true, q=0, id=13, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b62e41c00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2376200) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2376200) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb2399c80) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b25fff700) at pthread_create.c:312
Thread 13 (Thread 0x7f7bb6c12100 (LWP 19303)):
#0 0x00007f7bc1343fe7 in timer_helper_thread (arg=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/timer_routines.c:92
#1 0x00007f7bbec4f182 in start_thread (arg=0x7f7bb6c12100) at pthread_create.c:312
#2 0x00007f7bbe15c47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 12 (Thread 0x7f7b9d3fe700 (LWP 19281)):
#0 0x00007f7bbe15cb13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f7bc0a4a813 in epoll_dispatch (base=0x7f7bb6744a80, tv=<optimized out>) at epoll.c:407
#2 0x00007f7bc0a36907 in event_base_loop (base=0x7f7bb6744a80, flags=1) at event.c:1607
#3 0x0000000001da3d4f in folly::EventBase::loopBody (this=this@entry=0x7f7bb3409c90, flags=flags@entry=0) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:347
#4 0x0000000001cfb7e0 in loop (this=0x7f7bb3409c90) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:299
#5 folly::EventBase::loopForever (this=this@entry=0x7f7bb3409c90) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:446
#6 0x0000000001a6bb4a in proxygen::WorkerThread::runLoop (this=0x7f7bb3409c50) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/proxygen/lib/services/WorkerThread.cpp:137
#7 0x0000000001a6bd7f in operator() (__closure=0x7f7bb2357330) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/proxygen/lib/services/WorkerThread.cpp:43
#8 _M_invoke<> (this=0x7f7bb2357330) at /usr/include/c++/4.8/functional:1732
#9 operator() (this=0x7f7bb2357330) at /usr/include/c++/4.8/functional:1720
Thread 11 (Thread 0x7f7b89bff700 (LWP 19291)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=2, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=2, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=2, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b89bfa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b89bfa40f, inc=true, q=0, id=2, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b8a6d64c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb642de00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb642de00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb23984e0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b89bff700) at pthread_create.c:312
Thread 10 (Thread 0x7f7ba53ff700 (LWP 19280)):
#0 0x00007f7bbe15cb13 in epoll_wait () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f7bc0a4a813 in epoll_dispatch (base=0x7f7bb6744800, tv=<optimized out>) at epoll.c:407
#2 0x00007f7bc0a36907 in event_base_loop (base=0x7f7bb6744800, flags=1) at event.c:1607
#3 0x0000000001da3d4f in folly::EventBase::loopBody (this=this@entry=0x7f7bb3409590, flags=flags@entry=0) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:347
#4 0x0000000001cfb7e0 in loop (this=0x7f7bb3409590) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:299
#5 folly::EventBase::loopForever (this=this@entry=0x7f7bb3409590) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/folly/src/folly/io/async/EventBase.cpp:446
#6 0x0000000001a6bb4a in proxygen::WorkerThread::runLoop (this=0x7f7bb3409550) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/proxygen/lib/services/WorkerThread.cpp:137
#7 0x0000000001a6bd7f in operator() (__closure=0x7f7bb23572b0) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/proxygen/lib/services/WorkerThread.cpp:43
#8 _M_invoke<> (this=0x7f7bb23572b0) at /usr/include/c++/4.8/functional:1732
#9 operator() (this=0x7f7bb23572b0) at /usr/include/c++/4.8/functional:1720
Thread 9 (Thread 0x7f7b1abff700 (LWP 19306)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=14, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=14, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=14, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b1abfa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b1abfa40f, inc=true, q=0, id=14, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b36e70f00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2376300) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2376300) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7b37a013a0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b1abff700) at pthread_create.c:312
Thread 8 (Thread 0x7f7b66fff700 (LWP 19297)):
#0 HPHP::NameValueTable::attach (this=0x7f7af580b850, fp=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/name-value-table.cpp:113
#1 0x0000000000eb00c3 in frame_free_locals_helper_inl<false> (numLocals=<optimized out>, fp=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/runtime.h:119
#2 frame_free_locals_inl_no_hook<false> (numLocals=<optimized out>, fp=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/runtime.h:152
#3 frame_free_locals_inl (rv=<optimized out>, numLocals=<optimized out>, fp=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/runtime.h:164
#4 ret (pc=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:4177
#5 iopRetC (pc=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:4243
#6 iopRetWrapper (pc=<optimized out>, fn=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:7840
#7 HPHP::dispatchImpl<true> () at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:8017
#8 0x0000000001d3f6be in HPHP::dispatchBB () at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:8071
#9 0x0000000001d3f3bc in HPHP::jit::MCGenerator::handleResume (this=0x7f7bb67c4c00, interpFirst=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/mc-generator.cpp:1487
Thread 7 (Thread 0x7f7b79bff700 (LWP 19293)):
#0 HPHP::FixedStringMap<unsigned int, false, unsigned int>::find (this=this@entry=0x7f7ba99ce238, sd=sd@entry=0x7f7ba99bfe20) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/fixed-string-map-inl.h:91
#1 0x0000000000c11938 in HPHP::Class::lookupMethod (this=this@entry=0x7f7ba99ce160, methName=methName@entry=0x7f7ba99bfe20) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/class-inl.h:190
#2 0x0000000001d1c516 in HPHP::ExecutionContext::lookupMethodCtx (this=this@entry=0x7f7b1c008010, cls=cls@entry=0x7f7ba99ce160, methodName=methodName@entry=0x7f7ba99bfe20, ctx=ctx@entry=0x7f7ba991e558, callType=callType@entry=HPHP::ClsMethod, raise=raise@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:1119
#3 0x0000000000ebbfae in HPHP::ExecutionContext::lookupClsMethod (this=this@entry=0x7f7b1c008010, f=@0x7f7b79bf9a78: 0x7f7b1c00b101, cls=cls@entry=0x7f7ba99ce160, methodName=methodName@entry=0x7f7ba99bfe20, obj=obj@entry=0x0, ctx=0x7f7ba991e558, raise=raise@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/bytecode.cpp:1255
#4 0x0000000001220dd6 in HPHP::jit::StaticMethodCache::lookup (handle=23280, ne=<optimized out>, clsName=0x7f7ba9929940, methName=0x7f7ba99bfe20, vmfp=0x7f7b8ac7d260) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/target-cache.cpp:587
#5 0x0000000028c11d7c in ?? ()
#6 0x0000000001d22899 in enterTCHelper () at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/translator-asm-helpers.S:77
#7 0x00000000012219c3 in HPHP::jit::x64::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs-x64.cpp:355
#8 0x000000000101ddb3 in operator() (__closure=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
#9 HPHP::jit::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
Thread 6 (Thread 0x7f7b2dfff700 (LWP 19304)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=12, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=12, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=12, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b2dffa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b2dffa40f, inc=true, q=0, id=12, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b71ba7a80) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2376000) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2376000) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb2399ba0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b2dfff700) at pthread_create.c:312
Thread 5 (Thread 0x7f7b563ff700 (LWP 19299)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x000000000192a069 in HPHP::SynchronizableMulti::waitImpl (this=this@entry=0x7f7bb3409838, id=id@entry=8, q=q@entry=0, front=front@entry=false, ts=ts@entry=0x0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:82
#2 0x000000000192a090 in HPHP::SynchronizableMulti::wait (this=this@entry=0x7f7bb3409838, id=id@entry=8, q=q@entry=0, front=front@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/synchronizable-multi.cpp:46
#3 0x0000000000e55678 in HPHP::JobQueue<std::shared_ptr<HPHP::FastCGIJob>, false, HPHP::JobQueueDropVMStack>::dequeueMaybeExpiredImpl (this=this@entry=0x7f7bb3409838, id=id@entry=8, q=q@entry=0, inc=inc@entry=true, now=..., expired=expired@entry=0x7f7b563fa40f) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:256
#4 0x0000000000e559cc in dequeueMaybeExpired (expired=0x7f7b563fa40f, inc=true, q=0, id=8, this=0x7f7bb3409838) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:170
#5 HPHP::JobQueueWorker<std::shared_ptr<HPHP::FastCGIJob>, HPHP::Server*, true, false, HPHP::JobQueueDropVMStack>::start (this=0x7f7b62e41f00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/job-queue.h:459
#6 0x0000000001921d2c in HPHP::AsyncFuncImpl::threadFuncImpl (this=this@entry=0x7f7bb2375c00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:131
#7 0x0000000001921edb in HPHP::AsyncFuncImpl::ThreadFunc (obj=0x7f7bb2375c00) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/util/async-func.cpp:51
#8 0x0000000000ce0ff7 in HPHP::start_routine_wrapper (arg=0x7f7bb2398f60) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/thread-hooks.cpp:104
#9 0x00007f7bbec4f182 in start_thread (arg=0x7f7b563ff700) at pthread_create.c:312
Thread 4 (Thread 0x7f7b11fff700 (LWP 19307)):
#0 std::_Deque_base<HPHP::jit::FPIInfo, std::allocator<HPHP::jit::FPIInfo> >::_M_initialize_map (this=this@entry=0x7f7b11ff8940, __num_elements=__num_elements@entry=0) at /usr/include/c++/4.8/bits/stl_deque.h:585
#1 0x000000000114bb00 in _Deque_base (this=0x7f7b11ff8940) at /usr/include/c++/4.8/bits/stl_deque.h:453
#2 deque (this=0x7f7b11ff8940) at /usr/include/c++/4.8/bits/stl_deque.h:783
#3 FrameState (this=0x7f7b11ff88f0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/frame-state.h:116
#4 HPHP::jit::FrameStateMgr::FrameStateMgr (this=0x7f7b396a41c8, marker=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/frame-state.cpp:325
#5 0x000000000125fe66 in HPHP::jit::IRBuilder::IRBuilder (this=0x7f7b396a4180, unit=..., initMarker=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/ir-builder.cpp:120
#6 0x0000000001115197 in HPHP::jit::IRGS::IRGS (this=0x7f7b11ff8ef0, context=..., flags=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/irgen-state.cpp:40
#7 0x0000000001208810 in Env (inlining=false, profiling=false, maxBCInstrs=1000, breakAt=..., interp=..., ctx=..., this=0x7f7b11ff8e40) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/region-tracelet.cpp:76
#8 HPHP::jit::selectTracelet (ctx=..., maxBCInstrs=1000, profiling=false, inlining=inlining@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/region-tracelet.cpp:628
#9 0x0000000001061e44 in operator() (__closure=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/region-selection.cpp:774
Thread 3 (Thread 0x7f7b94fff700 (LWP 19290)):
#0 mbfl_no2encoding (no_encoding=no_encoding@entry=mbfl_no_encoding_utf8) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/libmbfl/mbfl/mbfl_encoding.c:276
#1 0x0000000001c68ef9 in mbfl_buffer_converter_new (from=<optimized out>, to=mbfl_no_encoding_utf8, buf_initsz=0) at /tmp/buildd/hhvm-3.12.1+dfsg/third-party/libmbfl/mbfl/mbfilter.c:132
#2 0x0000000001d5bdc8 in HPHP::f_mb_check_encoding (opt_var=..., opt_encoding=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/mbstring/ext_mbstring.cpp:1179
#3 0x0000000003ab0ca8 in ?? ()
#4 0x0000000001d22899 in enterTCHelper () at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/translator-asm-helpers.S:77
#5 0x00000000012219c3 in HPHP::jit::x64::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs-x64.cpp:355
#6 0x000000000101ddb3 in operator() (__closure=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
#7 HPHP::jit::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
#8 0x0000000001d227f9 in HPHP::jit::MCGenerator::enterTC (this=<optimized out>, start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/mc-generator.cpp:1231
#9 0x0000000001d2248f in enterTCAtPrologue (start=<optimized out>, ar=<optimized out>, this=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/mc-generator.h:226
Thread 2 (Thread 0x7f7b423ff700 (LWP 19301)):
#0 0x00007f7bc2658d10 in u_strToUTF8WithSub_48 () from /usr/lib/x86_64-linux-gnu/libicuuc.so.48
#1 0x00007f7bc2658f0c in u_strToUTF8_48 () from /usr/lib/x86_64-linux-gnu/libicuuc.so.48
#2 0x00000000014adb9b in HPHP::Intl::u8 (u16=0x7f7b70c71004, u16_len=24887, error=@0x7f7b423f9a1c: U_ZERO_ERROR) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/icu/icu.cpp:286
#3 0x000000000148c4bc in u8 (error=@0x7f7b423f9a1c: U_ZERO_ERROR, u16=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/icu/icu.h:99
#4 HPHP::Intl::c_Normalizer_ns_normalize (self_=<optimized out>, input=..., form=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/ext/icu/ext_icu_normalizer.cpp:106
#5 0x0000000003891623 in ?? ()
#6 0x0000000001d22899 in enterTCHelper () at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/translator-asm-helpers.S:77
#7 0x00000000012219c3 in HPHP::jit::x64::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs-x64.cpp:355
#8 0x000000000101ddb3 in operator() (__closure=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
#9 HPHP::jit::enterTCImpl (start=<optimized out>, stashedAR=<optimized out>) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/vm/jit/unique-stubs.cpp:933
Thread 1 (Thread 0x7f7b5e3ff700 (LWP 19298)):
#0 HPHP::ObjectData::toArray (this=this@entry=0x7f7af409f100, pubOnly=pubOnly@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/object-data.cpp:531
#1 0x0000000000c2bcc5 in HPHP::getSerializeProps (obj=obj@entry=0x7f7af409f100, serializer=serializer@entry=0x7f7b5e3f99c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1508
#2 0x0000000000c2dccc in HPHP::serializeObjectImpl (obj=obj@entry=0x7f7af409f100, serializer=serializer@entry=0x7f7b5e3f99c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1666
#3 0x0000000000c2cbcc in HPHP::serializeObject (obj=0x7f7af409f100, serializer=0x7f7b5e3f99c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1724
#4 0x0000000000c2cc2b in serializeObject (serializer=0x7f7b5e3f99c0, obj=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1732
#5 HPHP::VariableSerializer::write (this=this@entry=0x7f7b5e3f99c0, v=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:651
#6 0x0000000001d2eeb1 in HPHP::VariableSerializer::write (this=this@entry=0x7f7b5e3f99c0, v=..., isArrayKey=isArrayKey@entry=false) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:671
#7 0x0000000001d2e88d in HPHP::VariableSerializer::writeArrayValue (this=this@entry=0x7f7b5e3f99c0, value=...) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1114
#8 0x0000000001d2e6e7 in HPHP::serializeArrayImpl (arr=<optimized out>, serializer=0x7f7b5e3f99c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1371
#9 0x0000000000c2dd40 in HPHP::serializeObjectImpl (obj=obj@entry=0x7f7af409efc0, serializer=serializer@entry=0x7f7b5e3f99c0) at /tmp/buildd/hhvm-3.12.1+dfsg/hphp/runtime/base/variable-serializer.cpp:1713