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cmd/compile: SSA writebarrier implementation makes noopt build failed #19571

cherrymui opened this issue Mar 16, 2017 · 2 comments


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commented Mar 16, 2017

# runtime
runtime/cgo_sigaction.go:62:16: write barrier prohibited
runtime/cgocheck.go:42:14: write barrier prohibited
runtime/cgocheck.go:135:15: write barrier prohibited
runtime/mgcmark.go:245:15: write barrier prohibited
runtime/mgcmark.go:773:15: write barrier prohibited
runtime/mgcsweep.go:124:14: write barrier prohibited
runtime/signal_sighandler.go:30:22: write barrier prohibited
runtime/signal_unix.go:263:23: write barrier prohibited
runtime/signal_unix.go:313:22: write barrier prohibited
runtime/signal_unix.go:583:22: write barrier prohibited

I think this is because noopt makes a few optimization passes disabled and it cannot determine it doesn't need write barriers there.

@cherrymui cherrymui self-assigned this Mar 16, 2017

@bradfitz bradfitz added this to the Go1.9 milestone Mar 16, 2017


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commented Mar 19, 2017

CL mentions this issue.


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commented Mar 20, 2017

@cherrymui cherrymui closed this Mar 20, 2017

@golang golang locked and limited conversation to collaborators Mar 20, 2018

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