kernel panic at kern/src/arena.c:723, from core 2: Arena kpages, request for zero
Stack Backtrace on Core 2:
#01 [<0xffffffffc200a47c>] in backtrace at src/kdebug.c:235
#02 [<0xffffffffc2009c15>] in _panic at src/init.c:268
#03 [<0xffffffffc200252f>] in arena_alloc at src/arena.c:723
#04 [<0xffffffffc2046165>] in kpages_alloc at src/page_alloc.c:80
#05 [<0xffffffffc200a96e>] in kmalloc at src/kmalloc.c:65
#06 [<0xffffffffc200aa2f>] in kzmalloc at src/kmalloc.c:91
#07 [<0xffffffffc2039881>] in parsecmd at src/ns/parse.c:80
#08 [<0xffffffffc2021c4c>] in routewrite at src/net/iproute.c:831
#09 [<0xffffffffc2016de8>] in ipwrite at src/net/devip.c:1445
#10 [<0xffffffffc20406e9>] in rwrite at src/ns/sysfile.c:1117
#11 [<0xffffffffc204093b>] in syswrite at src/ns/sysfile.c:1135
#12 [<0xffffffffc2059039>] in sys_write at src/syscall.c:1785
#13 [<0xffffffffc2059b99>] in syscall at src/syscall.c:2578
#14 [<0xffffffffc205a748>] in run_local_syscall at src/syscall.c:2615
#15 [<0xffffffffc205ac89>] in prep_syscalls at src/syscall.c:2635
#16 [<0xffffffffc20ac492>] in sysenter_callwrapper at arch/x86/trap.c:877
kernel panic at kern/arch/x86/trap.c:318, from core 3: Proc-ful Page Fault in the Kernel at 0x0000000020000104!
HW TRAP frame at 0xfffffff0000e5d40 on core 3
  rax  0x00007f7fdfbfff00
  rbx  0x0000000000000000
  rcx  0x0000000000000020
  rdx  0x000000001ffff100
  rbp  0xfffffff0000e5e38
  rsi  0x0000000020000100
  rdi  0xffff80001551ba00
  r8   0x0000000000000000
  r9   0x0000000000000000
  r10  0x000010000000a4c0
  r11  0x0000000000000202
  r12  0x0000000020000100
  r13  0x0000000020000100
  r14  0x0000000000000001
  r15  0xffff80001551ba00
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc8e38340
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc2058964
  cs   0x------------0008
  flag 0x0000000000010246
  rsp  0xfffffff0000e5e08
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc2058964>] in sys_tap_fds at src/syscall.c:2458
#02 [<0xffffffffc2059b99>] in syscall at src/syscall.c:2578
#03 [<0xffffffffc205a748>] in run_local_syscall at src/syscall.c:2615
#04 [<0xffffffffc205ac89>] in prep_syscalls at src/syscall.c:2635
#05 [<0xffffffffc20ac492>] in sysenter_callwrapper at arch/x86/trap.c:877