Crash info appears the same:

      KERNEL: /usr/lib/debug/boot/vmlinux-4.4.0-78-generic
    DUMPFILE: dump.201705191443  [PARTIAL DUMP]
        CPUS: 4
        DATE: Fri May 19 14:43:31 2017
      UPTIME: 00:43:02
LOAD AVERAGE: 2.53, 1.81, 2.56
       TASKS: 544
    NODENAME: <hidden>
     RELEASE: 4.4.0-78-generic
     VERSION: #99-Ubuntu SMP Thu Apr 27 15:29:09 UTC 2017
     MACHINE: x86_64  (2199 Mhz)
      MEMORY: 16 GB
       PANIC: "BUG: unable to handle kernel paging request at ffff88042d684000"
         PID: 0
     COMMAND: "swapper/1"
        TASK: ffff88042d678000  (1 of 4)  [THREAD_INFO: ffff88042d680000]
         CPU: 1
       STATE: TASK_RUNNING (PANIC)

bt:
 #9 [ffff88042d683e20] async_page_fault at ffffffff81842be8
#10 [ffff88042d683e38] tick_nohz_idle_exit at ffffffff810ff75e
#11 [ffff88042d683ed8] cpu_startup_entry at ffffffff810c4736
#12 [ffff88042d683f30] start_secondary at ffffffff810517c4

bt -f:
 #9 [ffff88042d683e20] async_page_fault at ffffffff81842be8
    ffff88042d683e28: ffff88042d680000 0000000000000000 
    ffff88042d683e38: ffffffff810ff75e 
#10 [ffff88042d683e38] tick_nohz_idle_exit at ffffffff810ff75e
    ffff88042d683e40: ffff88042d683ed0 ffffffff81f38d40 
    ffff88042d683e50: 00000259403d7830 0000000000002800 
    ffff88042d683e60: 000000010008b4dc 0000000000000000 
    ffff88042d683e70: 0000000000000014 0000000000000001 
    ffff88042d683e80: 0000000000000000 0000000000000001 
    ffff88042d683e90: 0000000000000083 0000000000000083 
    ffff88042d683ea0: ffffffffffffffff ffff88042d684000 
    ffff88042d683eb0: 0000000000000010 0000000000010082 
    ffff88042d683ec0: ffff88042d683ed0 0000000000000018 
    ffff88042d683ed0: ffff88042d683f28 ffffffff810c4736 
#11 [ffff88042d683ed8] cpu_startup_entry at ffffffff810c4736
    ffff88042d683ee0: ffff88042d680000 ffff88042d684000 
    ffff88042d683ef0: 7072184c56e60054 ada92d752b7bcf68 
    ffff88042d683f00: 0000000000000000 0000000000000000 
    ffff88042d683f10: 0000000000000000 0000000000000000 
    ffff88042d683f20: 0000000000000000 ffff88042d683f48 
    ffff88042d683f30: ffffffff810517c4

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https://bugs.launchpad.net/bugs/1691741

Title:
  Execute NX-protected page - 4.4.0-78-generic - kernel panic

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