Test

runtime: marked free object in span 0xfffe942e0ba8, elemsize=2560 freeindex=0 (bad use of unsafe.Pointer? try -d=checkptr) 0x204214804000 alloc marked 0x204214804a00 alloc marked 0x204214805400 alloc marked 0x204214805e00 alloc marked 0x204214806800 alloc marked 0x204214807200 alloc marked 0x204214807c00 alloc marked 0x204214808600 alloc marked 0x204214809000 alloc marked 0x204214809a00 alloc unmarked 0x20421480a400 alloc marked 0x20421480ae00 alloc marked 0x20421480b800 alloc marked 0x20421480c200 alloc unmarked 0x20421480cc00 alloc marked 0x20421480d600 alloc marked 0x20421480e000 alloc marked 0x20421480ea00 alloc marked 0x20421480f400 alloc marked 0x20421480fe00 free marked zombie runtime: alloc mapping: 0 type = 0x000020421480fe00: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe10: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe20: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe30: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe40: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe50: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe60: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe70: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe80: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fe90: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fea0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480feb0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fec0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fed0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fee0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fef0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff00: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff10: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff20: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff30: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff40: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff50: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff60: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff70: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff80: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ff90: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ffa0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ffb0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ffc0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ffd0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480ffe0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x000020421480fff0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810000: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810010: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810020: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810030: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810040: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810050: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810060: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810070: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810080: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810090: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100a0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100b0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100c0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100d0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100e0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148100f0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810100: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810110: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810120: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810130: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810140: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810150: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810160: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810170: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810180: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x0000204214810190: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101a0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101b0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101c0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101d0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101e0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x00002042148101f0: 0xdeadbeefdeadbeef 0xdeadbeefdeadbeef 0x204214810800 alloc marked 0x204214811200 alloc marked 0x204214811c00 alloc marked 0x204214812600 alloc marked 0x204214813000 alloc marked fatal error: found pointer to free object

goroutine 20 gp=0x2040002c0800 m=21 mp=0x204499932b08 [running]: runtime.throw({0x309f2eed?, 0x204214810200?}) #011runtime/panic.go:1082 +0x34 fp=0x204002183960 sp=0x204002183930 pc=0x111a58d4 runtime.(*mspan).reportZombies(0xfffe942e0ba8) #011runtime/mgcsweep.go:885 +0x418 fp=0x204002183a00 sp=0x204002183960 pc=0x1118a198 runtime.(*sweepLocked).sweep(0x204002183eb8?, 0x0) #011runtime/mgcsweep.go:647 +0x448 fp=0x204002183e20 sp=0x204002183a00 pc=0xfe834a8 runtime.sweepone(...) #011runtime/mgcsweep.go:394 runtime.bgsweep(0x0?) #011runtime/mgcsweep.go:299 +0x6e0 fp=0x204002183fb0 sp=0x204002183e20 pc=0xfe82120 runtime.gcenable.gowrap1() #011runtime/mgc.go:203 +0x20 fp=0x204002183fd0 sp=0x204002183fb0 pc=0xfe81a20 runtime.goexit({}) #011runtime/asm_arm64.s:1259 +0x4 fp=0x204002183fd0 sp=0x204002183fd0 pc=0x11205004 created by runtime.gcenable in goroutine 1 #011runtime/mgc.go:203 +0x5c