Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

cmd/compile/internal/gc: panic in buildssa #41077

Closed
bcmills opened this issue Aug 27, 2020 · 3 comments
Closed

cmd/compile/internal/gc: panic in buildssa #41077

bcmills opened this issue Aug 27, 2020 · 3 comments

Comments

@bcmills
Copy link
Member

@bcmills bcmills commented Aug 27, 2020

There appears to be a regression in buildssa that occasionally causes panics in the builders:

        panic: runtime error: invalid memory address or nil pointer dereference
        [signal SIGSEGV: segmentation violation code=0x1 addr=0x70 pc=0xaafefc]
        
        goroutine 26 [running]:
        cmd/compile/internal/gc.buildssa(0x0, 0x2, 0x0)
        	/workdir/go/src/cmd/compile/internal/gc/ssa.go:315 +0xfc
        cmd/compile/internal/gc.compileSSA(0x0, 0x2)
        	/workdir/go/src/cmd/compile/internal/gc/pgen.go:317 +0x5d
        cmd/compile/internal/gc.compileFunctions.func2(0xc00081a6c0, 0xc000393e40, 0x2)
        	/workdir/go/src/cmd/compile/internal/gc/pgen.go:382 +0x4d
        created by cmd/compile/internal/gc.compileFunctions
        	/workdir/go/src/cmd/compile/internal/gc/pgen.go:380 +0x129

2020-08-27T18:33:37-ac2a1f8/linux-amd64-sid
2020-08-14T17:45:39-a20cb4c/linux-amd64-nocgo

Marking as release-blocker at least until we understand whether it is actually a regression.

CC @randall77 @dr2chase @mdempsky @cuonglm

@bcmills
Copy link
Member Author

@bcmills bcmills commented Aug 27, 2020

This may be a duplicate of (or related to) #38463.

Loading

@bcmills
Copy link
Member Author

@bcmills bcmills commented Aug 27, 2020

May also be related to #32026.

Loading

@randall77
Copy link
Contributor

@randall77 randall77 commented Aug 27, 2020

I'm pretty sure this is a dup of #38463. Closing in favor of that one.

Loading

@randall77 randall77 closed this Aug 27, 2020
@golang golang locked and limited conversation to collaborators Aug 27, 2021
Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Projects
None yet
Linked pull requests

Successfully merging a pull request may close this issue.

None yet
3 participants