golang fatal error: sweep increased allocation count

Question

runtime: nelems=512 nalloc=339 previous allocCount=338 nfreed=65535
fatal error: sweep increased allocation count

runtime stack:
runtime.throw(0x106b506, 0x20)
    /usr/local/go/src/runtime/panic.go:608 +0x72
runtime.(*mspan).sweep(0x7f06d49c7428, 0x433e00, 0xc000000d00)
    /usr/local/go/src/runtime/mgcsweep.go:298 +0x879
runtime.sweepone(0x434617)
    /usr/local/go/src/runtime/mgcsweep.go:113 +0x10f
runtime.gosweepone.func1()
    /usr/local/go/src/runtime/mgcsweep.go:137 +0x2b
runtime.systemstack(0x0)
    /usr/local/go/src/runtime/asm_amd64.s:351 +0x66
runtime.mstart()
    /usr/local/go/src/runtime/proc.go:1229

请问一下这个是什么原因造成的错误？

Answer 1

建议把问题和背景描述清楚一点，细节一点，只有一个stack信息，是很难定位问题的

Answer 2

看样子 像是在GC清理的时候panic了