Reading symbols from /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_ejson_compare.so...done.
Loaded symbols for /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_ejson_compare.so
Reading symbols from /opt/couchbase/lib/couchdb/erlang/lib/couch_view_parser-1.0/priv/couch_view_parser_nif.so...done.
Loaded symbols for /opt/couchbase/lib/couchdb/erlang/lib/couch_view_parser-1.0/priv/couch_view_parser_nif.so
Core was generated by `/opt/couchbase/lib/erlang/erts-5.8.5/bin/beam.smp -A 16 -sbt u -P 327680 -K tru'.
Program terminated with signal 11, Segmentation fault.
#0  0x000000000043ec6b in tree_delete (allctr=<value optimized out>, del=0x12c6a80, flags=<value optimized out>) at beam/erl_bestfit_alloc.c:435
435	beam/erl_bestfit_alloc.c: No such file or directory.
	in beam/erl_bestfit_alloc.c

Thread 31 (Thread 0x7f4afea01700 (LWP 28422)):
#0  0x000000397260804d in pthread_join () from /lib64/libpthread.so.0
#1  0x00007f4af6371887 in v8::internal::ContextSwitcher::StopPreemption () at src/v8threads.cc:445
#2  0x00007f4af424b7a3 in destroyContext (ctx=0x7f4aac7b4f18) at mapreduce.cc:354
#3  0x00000000005138fb in nif_resource_dtor (bin=<value optimized out>) at beam/erl_nif.c:1217
#4  0x000000000048904b in erts_bin_free (offheap=<value optimized out>) at beam/erl_binary.h:303
#5  erts_cleanup_offheap (offheap=<value optimized out>) at beam/erl_message.c:174
#6  0x0000000000498a81 in delete_process (p=0x7f4aa286d568, pix_lock=<value optimized out>) at beam/erl_process.c:6621
#7  continue_exit_process (p=0x7f4aa286d568, pix_lock=<value optimized out>) at beam/erl_process.c:7663
#8  0x000000000051db94 in terminate_proc (c_p=0x7f4aa286d568, pc=<value optimized out>, reg=<value optimized out>, bf=<value optimized out>) at beam/beam_emu.c:5633
#9  handle_error (c_p=0x7f4aa286d568, pc=<value optimized out>, reg=<value optimized out>, bf=<value optimized out>) at beam/beam_emu.c:5508
#10 0x0000000000520cdf in process_main () at beam/beam_emu.c:3273
#11 0x000000000048d496 in sched_thread_func (vesdp=0x7f4b000eafc0) at beam/erl_process.c:3782
#12 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200a0) at pthread/ethread.c:106
#13 0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#14 0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7f4afe000700 (LWP 28423)):
#0  0x0000000000522f94 in process_main () at x86_64-unknown-linux-gnu/opt/smp/beam_hot.h:919
#1  0x000000000048d496 in sched_thread_func (vesdp=0x7f4b000f9080) at beam/erl_process.c:3782
#2  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200a0) at pthread/ethread.c:106
#3  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7f4afec23700 (LWP 28407)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8138) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8138) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8138) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7f4affe69700 (LWP 28403)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x0000000000462ad9 in erts_cnd_wait (unused=<value optimized out>) at beam/erl_threads.h:697
#3  erts_smp_cnd_wait (unused=<value optimized out>) at beam/erl_smp.h:472
#4  sys_msg_dispatcher_func (unused=<value optimized out>) at beam/erl_trace.c:3238
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200d0) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7f4afea47700 (LWP 28421)):
#0  0x000000397260f03d in waitpid () from /lib64/libpthread.so.0
#1  0x000000000053906f in child_waiter (unused=<value optimized out>) at sys/unix/sys.c:2821
#2  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620080) at pthread/ethread.c:106
#3  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7f4afeaad700 (LWP 28418)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8660) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8660) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8660) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7f4afeb9b700 (LWP 28411)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8318) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8318) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8318) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7f4aaed44700 (LWP 29576)):
#0  0x0000003971eab15d in nanosleep () from /lib64/libc.so.6
#1  0x0000003971edf124 in usleep () from /lib64/libc.so.6
#2  0x00007f4af6371848 in v8::internal::ContextSwitcher::Run (this=0x7f4af814d8d0) at src/v8threads.cc:457
#3  0x00007f4af62f1580 in v8::internal::ThreadEntry (arg=0x7f4af814d8d0) at src/platform-linux.cc:745
#4  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7f4a94844700 (LWP 29407)):
#0  0x0000003971eab15d in nanosleep () from /lib64/libc.so.6
#1  0x0000003971edf124 in usleep () from /lib64/libc.so.6
#2  0x00007f4af6371848 in v8::internal::ContextSwitcher::Run (this=0x7f4ab41b09d0) at src/v8threads.cc:457
#3  0x00007f4af62f1580 in v8::internal::ThreadEntry (arg=0x7f4ab41b09d0) at src/platform-linux.cc:745
#4  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7f4afea8b700 (LWP 28419)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d86d8) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d86d8) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d86d8) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7f4afeb13700 (LWP 28415)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d84f8) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d84f8) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d84f8) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7f4afd5ff700 (LWP 28424)):
#0  do_erts_alcu_free (type=<value optimized out>, unused=<value optimized out>, p=0x7f4aaf0b8608) at beam/erl_alloc_util.c:2894
#1  erts_alcu_free_thr_pref (type=<value optimized out>, unused=<value optimized out>, p=0x7f4aaf0b8608) at beam/erl_alloc_util.c:2949
#2  0x0000000000489022 in erts_free (offheap=<value optimized out>) at beam/erl_alloc.h:226
#3  erts_bin_free (offheap=<value optimized out>) at beam/erl_binary.h:307
#4  erts_cleanup_offheap (offheap=<value optimized out>) at beam/erl_message.c:174
#5  0x0000000000498a81 in delete_process (p=0x7f4aac311310, pix_lock=<value optimized out>) at beam/erl_process.c:6621
#6  continue_exit_process (p=0x7f4aac311310, pix_lock=<value optimized out>) at beam/erl_process.c:7663
#7  0x000000000051db94 in terminate_proc (c_p=0x7f4aac311310, pc=<value optimized out>, reg=<value optimized out>, bf=<value optimized out>) at beam/beam_emu.c:5633
#8  handle_error (c_p=0x7f4aac311310, pc=<value optimized out>, reg=<value optimized out>, bf=<value optimized out>) at beam/beam_emu.c:5508
#9  0x0000000000520cdf in process_main () at beam/beam_emu.c:3273
#10 0x000000000048d496 in sched_thread_func (vesdp=0x7f4b00107140) at beam/erl_process.c:3782
#11 0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200a0) at pthread/ethread.c:106
#12 0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#13 0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7f4afec45700 (LWP 28406)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d80c0) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d80c0) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d80c0) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7f4afec67700 (LWP 28405)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8048) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8048) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8048) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f4b0017c700 (LWP 28401)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x000000000046a1cf in erts_cnd_wait (unused=<value optimized out>) at beam/erl_threads.h:697
#3  erts_smp_cnd_wait (unused=<value optimized out>) at beam/erl_smp.h:472
#4  emergency_watchdog (unused=<value optimized out>) at beam/utils.c:3945
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200d0) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f4a93e43700 (LWP 29574)):
#0  0x0000003971eab15d in nanosleep () from /lib64/libc.so.6
#1  0x0000003971edf124 in usleep () from /lib64/libc.so.6
#2  0x00007f4af6371848 in v8::internal::ContextSwitcher::Run (this=0x7f4aa8091b00) at src/v8threads.cc:457
#3  0x00007f4af62f1580 in v8::internal::ThreadEntry (arg=0x7f4aa8091b00) at src/platform-linux.cc:745
#4  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f4aaed55700 (LWP 28589)):
#0  0x000000397260d6c0 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007f4af62f118d in v8::internal::LinuxSemaphore::Wait (this=0x7f4aa8009b10) at src/platform-linux.cc:869
#2  0x00007f4af630845c in v8::internal::RuntimeProfiler::WaitForSomeIsolateToEnterJS () at src/runtime-profiler.cc:386
#3  0x00007f4af62f2136 in v8::internal::SignalSender::Run (this=0x7f4aa8009470) at src/platform-linux.cc:1126
#4  0x00007f4af62f1580 in v8::internal::ThreadEntry (arg=0x7f4aa8009470) at src/platform-linux.cc:745
#5  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f4aaffff700 (LWP 28433)):
#0  0x0000003971eab15d in nanosleep () from /lib64/libc.so.6
#1  0x0000003971edf124 in usleep () from /lib64/libc.so.6
#2  0x00007f4af4249397 in terminatorLoop (args=<value optimized out>) at mapreduce_nif.cc:445
#3  0x0000000000584d89 in thr_wrapper (vtwd=0x7f4afea00ae0) at pthread/ethread.c:106
#4  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f4afeacf700 (LWP 28417)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d85e8) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d85e8) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d85e8) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f4afeaf1700 (LWP 28416)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8570) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8570) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8570) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f4afeb57700 (LWP 28413)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8408) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8408) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8408) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f4afcbfe700 (LWP 28425)):
#0  erts_smp_proc_raw_trylock__ (c_p=0x7f4aac2e15d0, ref=139958707146706) at beam/erl_process_lock.h:422
#1  erts_smp_proc_lock__ (c_p=0x7f4aac2e15d0, ref=139958707146706) at beam/erl_process_lock.h:455
#2  erts_smp_proc_lock (c_p=0x7f4aac2e15d0, ref=139958707146706) at beam/erl_process_lock.h:672
#3  demonitor (c_p=0x7f4aac2e15d0, ref=139958707146706) at beam/bif.c:377
#4  0x0000000000477c30 in demonitor_2 (A__p=0x7f4aac2e15d0, A_1=139958707146706, A_2=<value optimized out>) at beam/bif.c:505
#5  0x0000000000521927 in process_main () at beam/beam_emu.c:2542
#6  0x000000000048d496 in sched_thread_func (vesdp=0x7f4b00115200) at beam/erl_process.c:3782
#7  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff316200a0) at pthread/ethread.c:106
#8  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f4b00b7d700 (LWP 28400)):
#0  0x000000397260e4ed in read () from /lib64/libpthread.so.0
#1  0x000000000053810e in signal_dispatcher_thread_func (unused=<value optimized out>) at sys/unix/sys.c:2906
#2  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff3161ffc0) at pthread/ethread.c:106
#3  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#4  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f4b00ea9700 (LWP 28398)):
#0  0x0000003971ede8b3 in select () from /lib64/libc.so.6
#1  0x0000000000537ba0 in erts_sys_main_thread () at sys/unix/sys.c:3049
#2  0x0000000000444761 in erl_start (argc=54, argv=<value optimized out>) at beam/erl_init.c:1441
#3  0x0000000000426219 in main (argc=<value optimized out>, argv=<value optimized out>) at sys/unix/erl_main.c:29

Thread 7 (Thread 0x7f4aae343700 (LWP 28979)):
#0  0x0000003971eab15d in nanosleep () from /lib64/libc.so.6
#1  0x0000003971edf124 in usleep () from /lib64/libc.so.6
#2  0x00007f4af6371848 in v8::internal::ContextSwitcher::Run (this=0x7f4aa4030140) at src/v8threads.cc:457
#3  0x00007f4af62f1580 in v8::internal::ThreadEntry (arg=0x7f4aa4030140) at src/platform-linux.cc:745
#4  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#5  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f4afea69700 (LWP 28420)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8750) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8750) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8750) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f4afeb35700 (LWP 28414)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8480) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8480) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8480) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f4afeb79700 (LWP 28412)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8390) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8390) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8390) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f4afebbd700 (LWP 28410)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d82a0) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d82a0) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d82a0) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f4afebdf700 (LWP 28409)):
#0  0x000000397260b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000000000582e29 in ethr_cond_wait (cnd=<value optimized out>, mtx=<value optimized out>) at common/ethr_mutex.c:1350
#2  0x00000000004e8efb in erts_cnd_wait (arg=0x7f4aff3d8228) at beam/erl_threads.h:697
#3  async_get (arg=0x7f4aff3d8228) at beam/erl_async.c:207
#4  async_main (arg=0x7f4aff3d8228) at beam/erl_async.c:274
#5  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#6  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#7  0x0000003971ee5ccd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f4afec01700 (LWP 28408)):
#0  0x000000000043ec6b in tree_delete (allctr=<value optimized out>, del=0x12c6a80, flags=<value optimized out>) at beam/erl_bestfit_alloc.c:435
#1  0x0000000000437091 in mbc_free (allctr=0x12a86c0, p=<value optimized out>) at beam/erl_alloc_util.c:867
#2  0x000000000043833f in do_erts_alcu_free (type=<value optimized out>, unused=<value optimized out>, p=0x12c6bb8) at beam/erl_alloc_util.c:2898
#3  erts_alcu_free_thr_pref (type=<value optimized out>, unused=<value optimized out>, p=0x12c6bb8) at beam/erl_alloc_util.c:2949
#4  0x000000000054ca48 in file_async_ready (e=0x12c3230, data=0x12c6bb8) at drivers/common/efile_drv.c:2117
#5  0x0000000000480094 in async_ready (p=0x7f4afeca4e90, data=<value optimized out>) at beam/io.c:2445
#6  0x00000000004e906f in async_main (arg=0x7f4aff3d81b0) at beam/erl_async.c:296
#7  0x0000000000584d89 in thr_wrapper (vtwd=0x7fff31620060) at pthread/ethread.c:106
#8  0x00000039726077f1 in start_thread () from /lib64/libpthread.so.0
#9  0x0000003971ee5ccd in clone () from /lib64/libc.so.6
--------------------------------------------------------------------------------
Module information:
/lib64/libutil.so.1:
lrwxrwxrwx. 1 root root 15 May 22 14:11 /lib64/libutil.so.1 -> libutil-2.12.so
d8245b2e4225de87c36571146ce8a485  /lib64/libutil.so.1
/lib64/libdl.so.2:
lrwxrwxrwx. 1 root root 13 May 22 14:11 /lib64/libdl.so.2 -> libdl-2.12.so
11652c5d0ba3bf86eb3580c27e5d52c3  /lib64/libdl.so.2
/lib64/libm.so.6:
lrwxrwxrwx. 1 root root 12 May 22 14:11 /lib64/libm.so.6 -> libm-2.12.so
211b8a166904bf77588bfe7b82546f82  /lib64/libm.so.6
/lib64/libncurses.so.5:
lrwxrwxrwx. 1 root root 17 May 21 14:28 /lib64/libncurses.so.5 -> libncurses.so.5.7
d227b66b47809b0907c31a97894cd25b  /lib64/libncurses.so.5
/lib64/libpthread.so.0:
lrwxrwxrwx. 1 root root 18 May 22 14:11 /lib64/libpthread.so.0 -> libpthread-2.12.so
d0f807f3fa3c1f95f7098c8af9442088  /lib64/libpthread.so.0
/lib64/librt.so.1:
lrwxrwxrwx. 1 root root 13 May 22 14:11 /lib64/librt.so.1 -> librt-2.12.so
91b86595d72c65a9221e3a0f1628a31e  /lib64/librt.so.1
/lib64/libc.so.6:
lrwxrwxrwx. 1 root root 12 May 22 14:11 /lib64/libc.so.6 -> libc-2.12.so
23802125c461a5ec145f892f9da03c25  /lib64/libc.so.6
/lib64/ld-linux-x86-64.so.2:
lrwxrwxrwx. 1 root root 10 May 22 14:11 /lib64/ld-linux-x86-64.so.2 -> ld-2.12.so
150469f984599704562c67f0d7048c6b  /lib64/ld-linux-x86-64.so.2
/lib64/libtinfo.so.5:
lrwxrwxrwx. 1 root root 15 May 21 14:28 /lib64/libtinfo.so.5 -> libtinfo.so.5.7
6e207f4702c0442d3414c4a45cb48bb0  /lib64/libtinfo.so.5
/opt/couchbase/lib/erlang/lib/crypto-2.0.4/priv/lib/crypto.so:
-rwxr-xr-x. 1 bin bin 105367 Aug 30 09:12 /opt/couchbase/lib/erlang/lib/crypto-2.0.4/priv/lib/crypto.so
6e54a6b6dcaa9d8ad139be11e0d4b6a4  /opt/couchbase/lib/erlang/lib/crypto-2.0.4/priv/lib/crypto.so
/usr/lib64/libcrypto.so.6:
lrwxrwxrwx. 1 root root 19 Jul 17 19:09 /usr/lib64/libcrypto.so.6 -> libcrypto.so.0.9.8e
78dc020d4c5906ef8d38fa8772745aec  /usr/lib64/libcrypto.so.6
/usr/lib64/libssl.so.6:
lrwxrwxrwx. 1 root root 16 Jul 17 19:09 /usr/lib64/libssl.so.6 -> libssl.so.0.9.8e
a02f2de91ba1e75330034bd0d52ca968  /usr/lib64/libssl.so.6
/lib64/libz.so.1:
lrwxrwxrwx. 1 root root 13 May 21 14:29 /lib64/libz.so.1 -> libz.so.1.2.3
82f54afc5d1f498fcd43c92ffc11c8db  /lib64/libz.so.1
/lib64/libgssapi_krb5.so.2:
lrwxrwxrwx. 1 root root 21 May 23 13:43 /lib64/libgssapi_krb5.so.2 -> libgssapi_krb5.so.2.2
614fc041a1b4317d398dd10aca241a18  /lib64/libgssapi_krb5.so.2
/lib64/libkrb5.so.3:
lrwxrwxrwx. 1 root root 14 May 23 13:43 /lib64/libkrb5.so.3 -> libkrb5.so.3.3
cf990cc60ead1934889be593dcd0f4e0  /lib64/libkrb5.so.3
/lib64/libcom_err.so.2:
lrwxrwxrwx. 1 root root 17 May 21 14:29 /lib64/libcom_err.so.2 -> libcom_err.so.2.1
0be6e3bf4281d34539f10f6bf1f9d78a  /lib64/libcom_err.so.2
/lib64/libk5crypto.so.3:
lrwxrwxrwx. 1 root root 18 May 23 13:43 /lib64/libk5crypto.so.3 -> libk5crypto.so.3.1
fa8975198403f51630bef126cbdb9db4  /lib64/libk5crypto.so.3
/lib64/libkrb5support.so.0:
lrwxrwxrwx. 1 root root 21 May 23 13:43 /lib64/libkrb5support.so.0 -> libkrb5support.so.0.1
646b1b571864850a306a095d1cfbb9bf  /lib64/libkrb5support.so.0
/lib64/libkeyutils.so.1:
lrwxrwxrwx. 1 root root 18 May 21 14:29 /lib64/libkeyutils.so.1 -> libkeyutils.so.1.3
cc7167115d74e6dc01f03476b8b0cb08  /lib64/libkeyutils.so.1
/lib64/libresolv.so.2:
lrwxrwxrwx. 1 root root 17 May 22 14:11 /lib64/libresolv.so.2 -> libresolv-2.12.so
47d1d452c218368529c6dff6d3b3fb43  /lib64/libresolv.so.2
/lib64/libselinux.so.1:
-rwxr-xr-x. 1 root root 124624 Dec  7  2011 /lib64/libselinux.so.1
1835b7a834964f02f8f27a10e4323c05  /lib64/libselinux.so.1
/opt/couchbase/lib/libv8.so:
-rwxr-xr-x. 1 bin bin 85345184 Aug 30 09:15 /opt/couchbase/lib/libv8.so
73f844b67803bb08a9de423081d12fac  /opt/couchbase/lib/libv8.so
/lib64/libcrypt.so.1:
lrwxrwxrwx. 1 root root 16 May 22 14:11 /lib64/libcrypt.so.1 -> libcrypt-2.12.so
09b52ad8a339901a8bdb3a902fe0f694  /lib64/libcrypt.so.1
/usr/lib64/libstdc++.so.6:
lrwxrwxrwx. 1 root root 19 May 21 14:29 /usr/lib64/libstdc++.so.6 -> libstdc++.so.6.0.13
743a00f53ada7152287fcd37f3ae0152  /usr/lib64/libstdc++.so.6
/lib64/libgcc_s.so.1:
lrwxrwxrwx. 1 root root 28 May 21 14:28 /lib64/libgcc_s.so.1 -> libgcc_s-4.4.6-20110824.so.1
1761953c9a7d0f10c78055fbb4df6f99  /lib64/libgcc_s.so.1
/lib64/libfreebl3.so:
-rwxr-xr-x. 1 root root 386040 Dec  7  2011 /lib64/libfreebl3.so
180e2e9c5913b10acbd1ce185886635b  /lib64/libfreebl3.so
/opt/couchbase/lib/couchdb/erlang/lib/ejson-0.1.0/priv/ejson.so:
-rwxr-xr-x. 1 bin bin 358429 Sep 12 10:09 /opt/couchbase/lib/couchdb/erlang/lib/ejson-0.1.0/priv/ejson.so
bfaff147d8eef7ce2a721b1d74c9e037  /opt/couchbase/lib/couchdb/erlang/lib/ejson-0.1.0/priv/ejson.so
/opt/couchbase/lib/couchdb/erlang/lib/snappy-1.0.4/priv/snappy_nif.so:
-rwxr-xr-x. 1 bin bin 411812 Sep 12 10:09 /opt/couchbase/lib/couchdb/erlang/lib/snappy-1.0.4/priv/snappy_nif.so
8e1a95e6a6b69ebde5cb062b6303e7d0  /opt/couchbase/lib/couchdb/erlang/lib/snappy-1.0.4/priv/snappy_nif.so
/opt/couchbase/lib/couchdb/erlang/lib/mapreduce-1.0/priv/mapreduce_nif.so:
-rwxr-xr-x. 1 bin bin 655324 Sep 12 10:08 /opt/couchbase/lib/couchdb/erlang/lib/mapreduce-1.0/priv/mapreduce_nif.so
790a30484c1c8f0d4f4598c2d513967a  /opt/couchbase/lib/couchdb/erlang/lib/mapreduce-1.0/priv/mapreduce_nif.so
/opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_icu_driver.so:
-rwxr-xr-x. 1 bin bin 191090 Sep 12 10:08 /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_icu_driver.so
65f1829bafd9bda22eed5732c41718a3  /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_icu_driver.so
/opt/couchbase/lib/libicuuc.so.44:
lrwxrwxrwx. 1 bin bin 16 Sep 14 10:50 /opt/couchbase/lib/libicuuc.so.44 -> libicuuc.so.44.0
42f69b9a8effcfd45a1c70aea9dcb66a  /opt/couchbase/lib/libicuuc.so.44
/opt/couchbase/lib/libicudata.so.44:
lrwxrwxrwx. 1 bin bin 18 Sep 14 10:50 /opt/couchbase/lib/libicudata.so.44 -> libicudata.so.44.0
797015967c9d62eb4ce64e861e45f500  /opt/couchbase/lib/libicudata.so.44
/opt/couchbase/lib/libicui18n.so.44:
lrwxrwxrwx. 1 bin bin 18 Sep 14 10:50 /opt/couchbase/lib/libicui18n.so.44 -> libicui18n.so.44.0
906d4788c04365237419e085f34cc982  /opt/couchbase/lib/libicui18n.so.44
/opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_ejson_compare.so:
-rwxr-xr-x. 1 bin bin 577011 Sep 12 10:08 /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_ejson_compare.so
0ed1f41631963e85232351d1ae3d9852  /opt/couchbase/lib/couchdb/erlang/lib/couch-1.2.0a-5282953-git/priv/lib/couch_ejson_compare.so
/opt/couchbase/lib/couchdb/erlang/lib/couch_view_parser-1.0/priv/couch_view_parser_nif.so:
-rwxr-xr-x. 1 bin bin 800741 Sep 12 10:09 /opt/couchbase/lib/couchdb/erlang/lib/couch_view_parser-1.0/priv/couch_view_parser_nif.so
edb3246db291c6565164485b6ecb419f  /opt/couchbase/lib/couchdb/erlang/lib/couch_view_parser-1.0/priv/couch_view_parser_nif.so