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runtime: I create more than CPU logical core number goroutine,and the demo is bomb #23235

MrXionGe opened this issue Dec 24, 2017 · 1 comment


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@MrXionGe MrXionGe commented Dec 24, 2017

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go1.9.2 windows/amd64

Does this issue reproduce with the latest release?

En……I do not know if there is any problem with the previous version

What operating system and processor architecture are you using (go env)?

Windos10 amd64

What did you do?

Well,I make a Bubble Sort Demo to test my CPU performance.
You can see the code inside the link,at line 24 and 27.
My Cpu Num are 4.
So,if I create 4 or over 4 "doBenchmar()" at line 24.This demo will always sleep at line 27(debug will bomb at line 27 too).If I add a print after line 27,it will not output.
If I create 3 or 2 "doBenchmar()" , There is not any problem.(Less than CPU logical core number)

If possible, provide a recipe for reproducing the error.
A complete runnable program is good.
A link on is best.

What did you expect to see?

I want to know where is the problem.
The best result is a problem with my code.

What did you see instead?

Oh,I saw my demo is bomb


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@davecheney davecheney commented Dec 24, 2017

I’m sorry but this bug report is not valid as it contains a data race. Please consult the following links for more information.

Unlike many projects on GitHub, the Go project does not use its bug tracker for general discussion or asking questions. We only use our bug tracker for tracking bugs and tracking proposals going through the Proposal Process.

Please see for good places to ask questions.

@davecheney davecheney closed this Dec 24, 2017
@mikioh mikioh changed the title I create more than CPU logical core number goroutine,and the demo is bomb runtime: I create more than CPU logical core number goroutine,and the demo is bomb Jan 5, 2018
@golang golang locked and limited conversation to collaborators Jan 5, 2019
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