Segfault with double free using std.read (having multiple concurrent promises?) about jk HOT 2 CLOSED

malloc 340   0x7f1594000ef0 ./log-malloc.so(+0xb4e)[0x7f15a5ca0b4e]
./log-malloc.so(malloc+0xa3)[0x7f15a5ca0c6b]
jk(_cgo_930f4c6fb697_Cfunc__Cmalloc+0x14)[0x9cce24]
jk[0x6dcc00]

free   0x7f1594000ef0 ./log-malloc.so(+0xb4e)[0x7f15a5ca0b4e]
./log-malloc.so(free+0x8f)[0x7f15a5ca0e1f]
jk[0x6dcc00]

*** Error in `jk': double free or corruption (out): 0x00007f1594000ef0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f15a4e8f7e5]
/lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7f15a4e9837a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f15a4e9c53c]
./log-malloc.so(free+0x38)[0x7f15a5ca0dc8]
jk(_ZN2v88internal20ArrayBufferCollector15FreeAllocationsEv+0x8e)[0xf9814e]
jk(_ZN2v88internal20ArrayBufferCollector11FreeingTask11RunInternalEv+0x146)[0xf983f6]
jk(_ZN2v88platform12WorkerThread3RunEv+0x36)[0x9d39c6]
jk[0xe0b330]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba)[0x7f15a5a8a6ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f15a4f1f41d]

$ go tool addr2line `which jk`
0x6dcc00
runtime.asmcgocall
/home/damien/go-1.11.1/src/runtime/asm_amd64.s:641

js -> go: send 0x2f28060 (84)
go -> js: sendbytes 0x7f88c40008c0 (340)
00000000  10 00 00 00 00 00 0a 00  0a 00 00 00 09 00 04 00  |................|
00000010  0a 00 00 00 0c 00 00 00  00 01 06 00 08 00 04 00  |................|
00000020  06 00 00 00 04 00 00 00  26 01 00 00 72 00 6f 00  |........&...r.o.|
00000030  6f 00 74 00 20 00 3d 00  20 00 74 00 72 00 75 00  |o.t. .=. .t.r.u.|
00000040  65 00 0a 00 0a 00 5b 00  2a 00 5d 00 0a 00 63 00  |e.....[.*.]...c.|
00000050  68 00 61 00 72 00 73 00  65 00 74 00 20 00 3d 00  |h.a.r.s.e.t. .=.|
00000060  20 00 75 00 74 00 66 00  2d 00 38 00 0a 00 69 00  | .u.t.f.-.8...i.|
00000070  6e 00 64 00 65 00 6e 00  74 00 5f 00 73 00 74 00  |n.d.e.n.t._.s.t.|
00000080  79 00 6c 00 65 00 20 00  3d 00 20 00 73 00 70 00  |y.l.e. .=. .s.p.|
00000090  61 00 63 00 65 00 0a 00  69 00 6e 00 64 00 65 00  |a.c.e...i.n.d.e.|
000000a0  6e 00 74 00 5f 00 73 00  69 00 7a 00 65 00 20 00  |n.t._.s.i.z.e. .|
000000b0  3d 00 20 00 32 00 0a 00  65 00 6e 00 64 00 5f 00  |=. .2...e.n.d._.|
000000c0  6f 00 66 00 5f 00 6c 00  69 00 6e 00 65 00 20 00  |o.f._.l.i.n.e. .|
000000d0  3d 00 20 00 6c 00 66 00  0a 00 69 00 6e 00 73 00  |=. .l.f...i.n.s.|
000000e0  65 00 72 00 74 00 5f 00  66 00 69 00 6e 00 61 00  |e.r.t._.f.i.n.a.|
000000f0  6c 00 5f 00 6e 00 65 00  77 00 6c 00 69 00 6e 00  |l._.n.e.w.l.i.n.|
00000100  65 00 20 00 3d 00 20 00  74 00 72 00 75 00 65 00  |e. .=. .t.r.u.e.|
00000110  0a 00 74 00 72 00 69 00  6d 00 5f 00 74 00 72 00  |..t.r.i.m._.t.r.|
00000120  61 00 69 00 6c 00 69 00  6e 00 67 00 5f 00 77 00  |a.i.l.i.n.g._.w.|
00000130  68 00 69 00 74 00 65 00  73 00 70 00 61 00 63 00  |h.i.t.e.s.p.a.c.|
00000140  65 00 20 00 3d 00 20 00  74 00 72 00 75 00 65 00  |e. .=. .t.r.u.e.|
00000150  0a 00 00 00                                       |....|
js -> go: send 0x2f28120 (76)
go -> js: sendbytes 0x7f88cc000a20 (22776)
js -> go: send 0x7f88c4003290 (224)
*** Error in `jk': double free or corruption (out): 0x00007f88c40008c0 ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f88d75a07e5]
/lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7f88d75a937a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f88d75ad53c]
jk(_ZN2v88internal20ArrayBufferCollector15FreeAllocationsEv+0x8e)[0xf9823e]
jk(_ZN2v88internal20ArrayBufferCollector11FreeingTask11RunInternalEv+0x146)[0xf984e6]
jk(_ZN2v88platform12WorkerThread3RunEv+0x36)[0x9d3ab6]
jk[0xe0b420]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba)[0x7f88d819b6ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f88d763041d]