Thank you for your reply.
No, this app doesn't use cgo. It's a pure Go application. Another go
application on this VM used cgo. But it also should not launch the
在 2018年2月3日星期六 UTC+8上午3:18:02，Justin Israel写道：
>> Hello gophers,
>> I have a VM on Linode.com. OS is Cent OS 6.8 and kernel
>> is 4.14.12-x86_64-linode92. It has 1 CPU core and 2G RAM.
>> A Go application is running on this VM.
>> Free memory on this VM is 490M (with buffer and cache), The RSS value of
>> this Go application is only 12M. After I kill this Go app, free memory will
>> increase to 950M. I have called Debug.FreeOSMemory() in this Go app every
>> Sometimes, free memory will be decreased to 0 and this Go app will be
>> killed by oom-killer. Does anyone know where is my memory?
> Does your program make use of cgo to call into C/C++? Does it launch
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