kernel panic at kern/arch/x86/trap.c:541, from core 2:   rcx  0x000030000005cee8
Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.  rdx  0x0000000000000000
  rbp  0xfffffff0000c4ef8
Stack Backtrace on Core 2:
  rsi  0xffff80000d429a80
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
  rdi  0xffffffffc20acca5
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
  r8   0x000030000005cee8
#03 [<0xffffffffc20aa253>] in handle_double_fault at arch/x86/trap.c:541
  r9   0x0000000000000020
  r10  0xffff8000000b8f00
  r11  0x0000000000000000
  r12  0xffff80000217de80
  r13  0xffffffffc20accbd
  r14  0xffff80000d429a80
  r15  0xffffffffc20acca5
  trap 0x00000008 Double Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000000
ROS(Core 2)>   rip  0xffffffffc2052ae7
  cs   0x------------0008
  flag 0x0000000000010082
  rsp  0xfffffff0000c4ec8
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc2052ae7>] in kmem_cache_free at src/slab.c:637
#02 [<0xffffffffc205a4bd>] in process_routine_kmsg at src/trap.c:228
#03 [<0xffffffffc204d113>] in proc_restartcore at src/process.c:798
#04 [<0xffffffffc20aaf20>] in sysenter_callwrapper at arch/x86/trap.c:861
kernel panic at kern/arch/x86/trap.c:541, from core 3: Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.
Stack Backtrace on Core 3:
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
#03 [<0xffffffffc20aa253>] in handle_double_fault at arch/x86/trap.c:541