Writing raw stacks to debugger_mongod_7400_raw_stacks.log.
Redirecting output to debugger_mongod_7400_raw_stacks.log.
Done logging to debugger_mongod_7400_raw_stacks.log.
MongoDB GDB commands loaded, run 'mongodb-help' for list of commands
MongoDB GDB pretty-printers loaded
MongoDB Lock analysis commands loaded
Thread 70: "signalP.gThread" (Thread 0x3ff8eeff910 (LWP 7410)) Error occurred in Python command: Cannot access memory at address 0x6a9aa67f880

...

Thread 1: "mongod" (Thread 0x3ff92a62aa0 (LWP 7400)) Error occurred in Python command: Cannot access memory at address 0x6a9ae1e2a10
Thread 70: "signalP.gThread" (Thread 0x3ff8eeff910 (LWP 7410))
Traceback (most recent call last):
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo.py", line 174, in invoke
    self._dump_unique_stacks(stacks)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo.py", line 233, in _dump_unique_stacks
    print(stack['output'])
KeyError: 'output'
Error occurred in Python command: ('output',)
warning: target file /proc/7400/cmdline contained unexpected null characters
Saved corefile dump_mongod.7400.core
Running Hang Analyzer Supplement - MongoDBDumpLocks
Traceback (most recent call last):
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 387, in invoke
    self.mongodb_show_locks()
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 394, in mongodb_show_locks
    get_locks(graph=None, thread_dict=thread_dict, show=True)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 348, in get_locks
    find_mutex_holder(graph, thread_dict, show)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 272, in find_mutex_holder
    frame = find_frame(r'std::mutex::lock\(\)')
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 254, in find_frame
    block = frame.block()
RuntimeError: Cannot locate object file for block.
Error occurred in Python command: Cannot locate object file for block.
Traceback (most recent call last):
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 412, in invoke
    self.mongodb_waitsfor_graph(arg)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 421, in mongodb_waitsfor_graph
    get_locks(graph=graph, thread_dict=thread_dict, show=False)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 348, in get_locks
    find_mutex_holder(graph, thread_dict, show)
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 272, in find_mutex_holder
    frame = find_frame(r'std::mutex::lock\(\)')
  File "/data/mci/1fcc8e1e1b801a663ff93ffc102ac6ea/src/buildscripts/gdb/mongo_lock.py", line 254, in find_frame
    block = frame.block()
RuntimeError: Cannot locate object file for block.
Error occurred in Python command: Cannot locate object file for block.
Running Print JavaScript Stack Supplement