delayed m_pullup, m->len: 40  off: 32084  p: 6
Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0x10
instruction pointer	= 0x8:0xffffffff807b2d01
current process		= Idle
Stopped at      in_delayed_cksum+0x71:  movq    0x10(%r12),%rax
db>