Enemy action?

According to Auric Goldfinger:

Once is happenstance. Twice is coincidence. Three times is enemy action.

One: panic[cpu1]/thread=fffffe80fd47aea0:
BAD TRAP: type=e (#pf Page fault) rp=fffffe8001773c70 addr=0 occurred in module "genunix" due to a NULL pointer dereference

Two: panic[cpu0]/thread=fffffe80f83a5de0:
BAD TRAP: type=e (#pf Page fault) rp=fffffe80010e8bd0 addr=0 occurred in module "unix" due to a NULL pointer dereference

Three: panic[cpu1]/thread=fffffe8000f56c80:
BAD TRAP: type=e (#pf Page fault) rp=fffffe8000f56450 addr=0 occurred in module "conskbd" due to a NULL pointer dereference

That's 3 failures on my desktop machine in just over a month. For those interested, the stack traces are:

stack pointer for thread fffffe80fd47aea0: fffffe8001773cb0
  fffffe8001773d70 0xffffffff8a965940()
  fffffe8001773da0 port_remove_done_event+0x4b()
  fffffe8001773e10 port_associate_fd+0x2b8()
  fffffe8001773ec0 portfs+0x303()
  fffffe8001773ed0 portfs32+0x24()
  fffffe8001773f20 sys_syscall32+0xd9()

stack pointer for thread fffffe80f83a5de0: fffffe80010e8c10
  fffffe80010e8d10 tcp_close+0xff()
  fffffe80010e8d50 qdetach+0x84()
  fffffe80010e8dc0 strclose+0x3e4()
  fffffe80010e8e00 socktpi_close+0x12b()
  fffffe80010e8e30 fop_close+0x2a()
  fffffe80010e8e60 closef+0x62()
  fffffe80010e8ec0 closeandsetf+0x249()
  fffffe80010e8ed0 close+0xb()
  fffffe80010e8f20 sys_syscall32+0xd9()

stack pointer for thread fffffe8000f56c80: fffffe8000f56330
  fffffe8000f56c80 5()

Huh?