cow mac下启动cow失败

$ ./cow failed MSpanList_Insert 0x604000 0xd08831cf55b 0x0 0x0 fatal error: MSpanList_Insert

runtime stack: runtime.throw(0x320e30, 0x10) /usr/local/go/src/runtime/panic.go:530 +0x90 fp=0x7ffeefbff430 sp=0x7ffeefbff418 runtime.(*mSpanList).insert(0x46c5c8, 0x604000) /usr/local/go/src/runtime/mheap.go:933 +0x293 fp=0x7ffeefbff460 sp=0x7ffeefbff430 runtime.(*mheap).freeSpanLocked(0x46bdc0, 0x604000, 0x100, 0x0) /usr/local/go/src/runtime/mheap.go:809 +0x4be fp=0x7ffeefbff4c8 sp=0x7ffeefbff460 runtime.(*mheap).grow(0x46bdc0, 0x8, 0x0) /usr/local/go/src/runtime/mheap.go:675 +0x2a0 fp=0x7ffeefbff520 sp=0x7ffeefbff4c8 runtime.(*mheap).allocSpanLocked(0x46bdc0, 0x1, 0x0) /usr/local/go/src/runtime/mheap.go:553 +0x4e3 fp=0x7ffeefbff578 sp=0x7ffeefbff520 runtime.(*mheap).alloc_m(0x46bdc0, 0x1, 0x15, 0x0) /usr/local/go/src/runtime/mheap.go:437 +0x119 fp=0x7ffeefbff5a8 sp=0x7ffeefbff578 runtime.(*mheap).alloc.func1() /usr/local/go/src/runtime/mheap.go:502 +0x41 fp=0x7ffeefbff5d8 sp=0x7ffeefbff5a8 runtime.systemstack(0x7ffeefbff5f8) /usr/local/go/src/runtime/asm_amd64.s:307 +0xab fp=0x7ffeefbff5e0 sp=0x7ffeefbff5d8 runtime.(*mheap).alloc(0x46bdc0, 0x1, 0x10000000015, 0x5a29f) /usr/local/go/src/runtime/mheap.go:503 +0x63 fp=0x7ffeefbff628 sp=0x7ffeefbff5e0 runtime.(*mcentral).grow(0x46d9c0, 0x0) /usr/local/go/src/runtime/mcentral.go:209 +0x93 fp=0x7ffeefbff690 sp=0x7ffeefbff628 runtime.(*mcentral).cacheSpan(0x46d9c0, 0x4679d8) /usr/local/go/src/runtime/mcentral.go:89 +0x47d fp=0x7ffeefbff6d0 sp=0x7ffeefbff690 runtime.(*mcache).refill(0x600000, 0x15, 0x7ffeefbff738) /usr/local/go/src/runtime/mcache.go:119 +0xcc fp=0x7ffeefbff708 sp=0x7ffeefbff6d0 runtime.mallocgc.func2() /usr/local/go/src/runtime/malloc.go:642 +0x2b fp=0x7ffeefbff728 sp=0x7ffeefbff708 runtime.systemstack(0x7ffeefbff7c8) /usr/local/go/src/runtime/asm_amd64.s:307 +0xab fp=0x7ffeefbff730 sp=0x7ffeefbff728 runtime.mallocgc(0x180, 0x2e8c00, 0x0, 0x800000000) /usr/local/go/src/runtime/malloc.go:643 +0x869 fp=0x7ffeefbff808 sp=0x7ffeefbff730 runtime.newobject(0x2e8c00, 0x468050) /usr/local/go/src/runtime/malloc.go:781 +0x42 fp=0x7ffeefbff830 sp=0x7ffeefbff808 runtime.malg(0x8000, 0x4682c0) /usr/local/go/src/runtime/proc.go:2634 +0x27 fp=0x7ffeefbff868 sp=0x7ffeefbff830 runtime.mpreinit(0x468820) /usr/local/go/src/runtime/os1_darwin.go:140 +0x1f fp=0x7ffeefbff880 sp=0x7ffeefbff868 runtime.mcommoninit(0x468820) /usr/local/go/src/runtime/proc.go:494 +0x105 fp=0x7ffeefbff8c8 sp=0x7ffeefbff880 runtime.schedinit() /usr/local/go/src/runtime/proc.go:434 +0x79 fp=0x7ffeefbff910 sp=0x7ffeefbff8c8 runtime.rt0_go(0x7ffeefbff948, 0x1, 0x7ffeefbff948, 0x0, 0x0, 0x1, 0x7ffeefbffa70, 0x0, 0x7ffeefbffa76, 0x7ffeefbffab8, ...) /usr/local/go/src/runtime/asm_amd64.s:138 +0x132 fp=0x7ffeefbff918 sp=0x7ffeefbff910