crash /usr/lib/debug/boot/vmlinux-4.4.0-124-generic dump

crash 7.0.3
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Copyright (C) 1999-2006  Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012  Fujitsu Limited
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GNU gdb (GDB) 7.6
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu"...

      KERNEL: /usr/lib/debug/boot/vmlinux-4.4.0-124-generic
    DUMPFILE: dump  [PARTIAL DUMP]
        CPUS: 20
        DATE: Thu Jan  1 00:00:00 1970
      UPTIME: 7 days, 22:12:52
LOAD AVERAGE: 0.55, 0.80, 1.00
       TASKS: 6381
    NODENAME: cic-2.domain.tld
     RELEASE: 4.4.0-124-generic
     VERSION: #148~14.04.1-Ubuntu SMP Thu May 3 07:26:53 UTC 2018
     MACHINE: x86_64  (2599 Mhz)
      MEMORY: 104 GB
       PANIC: "Oops: 0000 [#1] SMP " (check log for details)
         PID: 7470
     COMMAND: "kworker/u40:1"
        TASK: ffff88165e5d8000  [THREAD_INFO: ffff88170dc2c000]
         CPU: 15
       STATE: TASK_RUNNING (PANIC)

crash> 
crash> 
crash> 
crash> 
crash> bt
PID: 7470   TASK: ffff88165e5d8000  CPU: 15  COMMAND: "kworker/u40:1"
 #0 [ffff88170dc2f9d8] machine_kexec at ffffffff8105b67c
 #1 [ffff88170dc2fa30] crash_kexec at ffffffff8110abd3
 #2 [ffff88170dc2faf8] oops_end at ffffffff81030d12
 #3 [ffff88170dc2fb78] __bad_area_nosemaphore at ffffffff81069609
 #4 [ffff88170dc2fbc0] bad_area_nosemaphore at ffffffff81069723
 #5 [ffff88170dc2fbd0] __do_page_fault at ffffffff81069d12
 #6 [ffff88170dc2fc30] trace_do_page_fault at ffffffff8106a117
 #7 [ffff88170dc2fc60] do_async_page_fault at ffffffff81062d19
 #8 [ffff88170dc2fc70] async_page_fault at ffffffff8181cf58
 #9 [ffff88170dc2fcf8] n_tty_receive_buf_common at ffffffff814e2a5a
#10 [ffff88170dc2fdc8] n_tty_receive_buf2 at ffffffff814e34e4
#11 [ffff88170dc2fdd8] flush_to_ldisc at ffffffff814e5f05
#12 [ffff88170dc2fe20] process_one_work at ffffffff81099506
#13 [ffff88170dc2fe68] worker_thread at ffffffff81099eea
#14 [ffff88170dc2fec8] kthread at ffffffff8109f3b8
#15 [ffff88170dc2ff50] ret_from_fork at ffffffff8181a9b5
crash> 
crash> 
crash> 
crash> bt -l
PID: 7470   TASK: ffff88165e5d8000  CPU: 15  COMMAND: "kworker/u40:1"
 #0 [ffff88170dc2f9d8] machine_kexec at ffffffff8105b67c
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/kernel/machine_kexec_64.c: 322
 #1 [ffff88170dc2fa30] crash_kexec at ffffffff8110abd3
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/kernel/kexec_core.c: 875
 #2 [ffff88170dc2faf8] oops_end at ffffffff81030d12
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/kernel/dumpstack.c: 232
 #3 [ffff88170dc2fb78] __bad_area_nosemaphore at ffffffff81069609
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/mm/fault.c: 816
 #4 [ffff88170dc2fbc0] bad_area_nosemaphore at ffffffff81069723
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/mm/fault.c: 823
 #5 [ffff88170dc2fbd0] __do_page_fault at ffffffff81069d12
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/mm/fault.c: 1290
 #6 [ffff88170dc2fc30] trace_do_page_fault at ffffffff8106a117
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/mm/fault.c: 1340
 #7 [ffff88170dc2fc60] do_async_page_fault at ffffffff81062d19
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/kernel/kvm.c: 282
 #8 [ffff88170dc2fc70] async_page_fault at ffffffff8181cf58
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/entry/entry_64.S: 1042
 #9 [ffff88170dc2fcf8] n_tty_receive_buf_common at ffffffff814e2a5a
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/include/linux/compiler.h: 218
#10 [ffff88170dc2fdc8] n_tty_receive_buf2 at ffffffff814e34e4
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/drivers/tty/n_tty.c: 1778
#11 [ffff88170dc2fdd8] flush_to_ldisc at ffffffff814e5f05
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/drivers/tty/tty_buffer.c: 517
#12 [ffff88170dc2fe20] process_one_work at ffffffff81099506
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/kernel/workqueue.c: 2064
#13 [ffff88170dc2fe68] worker_thread at ffffffff81099eea
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/include/linux/list.h: 189
#14 [ffff88170dc2fec8] kthread at ffffffff8109f3b8
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/kernel/kthread.c: 211
#15 [ffff88170dc2ff50] ret_from_fork at ffffffff8181a9b5
    /build/linux-lts-xenial-ZNOxfG/linux-lts-xenial-4.4.0/arch/x86/entry/entry_64.S: 516
crash>