You can still check for races if you build your production binary with -race and deploy it as normal. There will be a some performance hit so you probably shouldn't do this for all your binaries, but it will be a cheap way to flush out any data races in your code.
On Saturday, 6 January 2018 21:15:56 UTC+11, she...@pingcap.com wrote: > > Thanks for your advice! I got the error message and the pstack result > screenshot from one of our client. I will try to use some OCR tools to > convert the image to text next time. > > For the questions: > 1. The binary is built without race detector flag. I have checked it. > 2. We do not use cgo. I will check if there is any unsafe package. > > Unfortunately, I can not reproduce this problem. This is the first time > and the only time I meet it. > > Thanks! > > On Saturday, January 6, 2018 at 1:28:24 AM UTC+8, Ian Lance Taylor wrote: >> >> On Fri, Jan 5, 2018 at 7:17 AM, <she...@pingcap.com> wrote: >> > >> > I meet a strange problem when running a program on Linux. I get "fatal: >> > morestack on g0" from stderr. The process is still there but does not >> > respond anymore. When I use `curl >> > http://ip:port/debug/pprof/goroutine?debug=1` to check the stack, but >> it >> > halts. There is nothing useful in stderr or dmesg. >> >> (I would like to encourage you and everyone else to not post >> screenshots of text. Just include the text in the e-mail message as >> text. Screenshots of images, sure, but not text. Thanks.) >> >> The error "fatal: morestack on g0" should, of course, never happen. >> The first questions are standard: have you run your program with the >> race detector? Do you use cgo or the unsafe package? >> >> Beyond that, does the problem happen consistently? Is there a way >> that we can reproduce it? >> >> Ian >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
