Issue

• Kernel panic at laundromat_main+554.

• PANIC: "general protection fault: 0000 [#1] SMP "

  PID: 3200   TASK: ffff880809281540  CPU: 5   COMMAND: "nfsd4"
  #0 [ffff880808c37b70] machine_kexec at ffffffff81038f3b
  #1 [ffff880808c37bd0] crash_kexec at ffffffff810c5af2
  #2 [ffff880808c37ca0] oops_end at ffffffff8152ca50
  #3 [ffff880808c37cd0] die at ffffffff81010e0b
  #4 [ffff880808c37d00] do_general_protection at ffffffff8152c552
  #5 [ffff880808c37d30] general_protection at ffffffff8152bd25
    [exception RIP: laundromat_main+554]                                             <== panic
    RIP: ffffffffa05895aa  RSP: ffff880808c37de0  RFLAGS: 00010246
    RAX: a00324e195fc6c71  RBX: ffff880807497390  RCX: ffffe8ffff610088
    RDX: 732e303530325f30  RSI: ffff880808c37df0  RDI: ffff8808074973b0
    RBP: ffff880808c37e30   R8: 0000000000000000   R9: 00000000ffffffff
    R10: 000073e273816e94  R11: 0000000000000001  R12: 732e303530325f30
    R13: ffff880808c37df0  R14: 0000000056099807  R15: 000000000000001e
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
  #6 [ffff880808c37e38] worker_thread at ffffffff81094a20
  #7 [ffff880808c37ee8] kthread at ffffffff8109abf6
  #8 [ffff880808c37f48] kernel_thread at ffffffff8100c20a