2015-08-10T15:59:41.879-0400 I CONTROL  [main] ***** SERVER RESTARTED *****
2015-08-10T15:59:41.955-0400 W -        [initandlisten] Detected unclean shutdown - /home/jonathan/pt-317-wt/data/wiredTiger/mongod.lock is not empty.
2015-08-10T15:59:41.955-0400 W STORAGE  [initandlisten] Recovering data from the last clean checkpoint.
2015-08-10T15:59:41.955-0400 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),

jonathan@CAP-JA-Ubuntu14:~$ sudo gdb -p 1817 -batch -ex "thread apply all bt"
[New LWP 7290]
[New LWP 1819]
[New LWP 1818]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f35c294acc3 in pread64 () at ../sysdeps/unix/syscall-template.S:81
81	../sysdeps/unix/syscall-template.S: No such file or directory.

Thread 4 (Thread 0x7f35c22ac700 (LWP 1818)):
#0  0x00007f35c294b0d1 in do_sigwait (sig=0x7f35c22ab8fc, set=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:60
#1  __sigwait (set=0x24bf980 <mongo::(anonymous namespace)::asyncSignals>, sig=0x7f35c22ab8fc) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:97
#2  0x00000000011d86b6 in mongo::(anonymous namespace)::signalProcessingThread() ()
#3  0x00000000019cf600 in execute_native_thread_routine ()
#4  0x00007f35c2943182 in start_thread (arg=0x7f35c22ac700) at pthread_create.c:312
#5  0x00007f35c267047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f35c1aab700 (LWP 1819)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x000000000192e4d6 in __wt_cond_wait ()
#2  0x0000000001912fb6 in __evict_server ()
#3  0x00007f35c2943182 in start_thread (arg=0x7f35c1aab700) at pthread_create.c:312
#4  0x00007f35c267047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f35c12aa700 (LWP 7290)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x000000000192e4d6 in __wt_cond_wait ()
#2  0x0000000001912d22 in __evict_worker ()
#3  0x00007f35c2943182 in start_thread (arg=0x7f35c12aa700) at pthread_create.c:312
#4  0x00007f35c267047d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f35c398fcc0 (LWP 1817)):
#0  0x00007f35c294acc3 in pread64 () at ../sysdeps/unix/syscall-template.S:81
#1  0x000000000192f886 in __wt_read ()
#2  0x00000000018ad72e in __wt_block_read_off ()
#3  0x00000000018ad9c4 in __wt_bm_read ()
#4  0x00000000018c7f56 in __wt_bt_read ()
#5  0x00000000018cce88 in __wt_cache_read ()
#6  0x00000000018c9f2b in __wt_page_in_func ()
#7  0x00000000018e6209 in __wt_row_search ()
#8  0x00000000018bfb36 in __wt_btcur_remove ()
#9  0x00000000018fd96b in __curfile_remove ()
#10 0x0000000001968a90 in __txn_log_recover ()
#11 0x0000000001918337 in __wt_log_scan ()
#12 0x0000000001969556 in __wt_txn_recover ()
#13 0x00000000018f5896 in __wt_connection_workers ()
#14 0x00000000018ef4ae in wiredtiger_open ()
#15 0x0000000000f79157 in mongo::WiredTigerKVEngine::WiredTigerKVEngine(std::string const&, std::string const&, bool, bool) ()
#16 0x0000000000f7653e in mongo::(anonymous namespace)::WiredTigerFactory::create(mongo::StorageGlobalParams const&, mongo::StorageEngineLockFile const&) const ()
#17 0x0000000000e9f339 in mongo::ServiceContextMongoD::initializeGlobalStorageEngine() ()
#18 0x00000000008d73b0 in mongo::initAndListen(int) ()
#19 0x00000000008dc044 in main ()