fatal error: unexpected signal during runtime execution
[signal SIGFPE: floating-point exception code=0x80 addr=0x0 pc=0x4231b5]

goroutine 24 gp=0x242a8d316b40 m=0 mp=0x3126640 [running]:
runtime.throw({0x16c50d6?, 0x0?})
	/usr/local/go/src/runtime/panic.go:1229 +0x48 fp=0x242a897865d0 sp=0x242a897865a0 pc=0x48a848
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:915 +0x3df fp=0x242a89786630 sp=0x242a897865d0 pc=0x48cc5f
runtime.lock2(0x16343a0?)
	/usr/local/go/src/runtime/lock_spinbit.go:165 +0x35 fp=0x242a89786690 sp=0x242a89786630 pc=0x4231b5
runtime.lockWithRank(...)
	/usr/local/go/src/runtime/lockrank_off.go:24
runtime.semacquire1(0x242a8be4c128, 0x0, 0x1, 0x0, 0xd)
	/usr/local/go/src/runtime/sema.go:180panic during panic
SIGFPE: floating-point exception
PC=0x4936b5 m=0 sigcode=128
instruction bytes: 0x89 0x44 0x24 0x20 0xc3 0xcc 0xcc 0xcc 0xcc 0xcc 0xcc 0x8b 0x7c 0x24 0x8 0x48

goroutine 0 gp=0x3124c00 m=0 mp=0x3126640 [idle]:
runtime.write1(0x2, 0x7ffd6604c5fd, 0x3)
	/usr/local/go/src/runtime/sys_linux_amd64.s:99 +0x15 fp=0x7ffd6604c538 sp=0x7ffd6604c530 pc=0x4936b5Connection to 10.128.1.21 closed by remote host.