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cmd/link: panic in (*ld.Link).loadlib on darwin-amd64-10_11 builder #33599

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bcmills opened this issue Aug 12, 2019 · 2 comments
Closed

cmd/link: panic in (*ld.Link).loadlib on darwin-amd64-10_11 builder #33599

bcmills opened this issue Aug 12, 2019 · 2 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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@bcmills
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bcmills commented Aug 12, 2019 •
edited 

#!watchflakes
post <- goos == "darwin" && log ~ `panic: runtime error: invalid memory address or nil pointer dereference` && log ~ `cmd/link/internal/ld\.\(\*Link\)\.loadlib`

Seen on the darwin-amd64-10_11 builder while running the cmd/go tests (https://build.golang.org/log/799476a348dc482b77ae2cdfb6ea6c39645716a0):

go test proxy running at GOPROXY=http://127.0.0.1:60472/mod
go proxy: no archive rsc.io v1.5.2: file does not exist
go proxy: no archive rsc.io v1.5.1: file does not exist
go proxy: no archive rsc.io v1.0.0: file does not exist
go proxy: no archive rsc.io v1.0.0: file does not exist
go proxy: no archive rsc.io v1.0.0: file does not exist
go proxy: no archive rsc.io v1.0.0: file does not exist
go proxy: no archive rsc.io v1.1.0: file does not exist
go proxy: no archive example.com/newcycle v1.0.0: file does not exist
--- FAIL: TestScript (0.00s)
    --- FAIL: TestScript/mod_modinfo (0.80s)
        script_test.go:191: 
            # Test to ensure runtime/debug.ReadBuildInfo parses
            # the modinfo embedded in a binary by the go tool
            # when module is enabled. (0.107s)
            # Build a binary and ensure that it can output its own debug info.
            # The debug info should be accessible before main starts (golang.org/issue/29628). (0.652s)
            > go build
            [stderr]
            go: downloading rsc.io/quote v1.0.0
            go: extracting rsc.io/quote v1.0.0
            go: finding rsc.io/quote v1.0.0
            # x
            panic: runtime error: invalid memory address or nil pointer dereference
            [signal SIGSEGV: segmentation violation code=0x1 addr=0x11 pc=0x118dea9]
            
            goroutine 1 [running]:
            cmd/link/internal/ld.(*Link).loadlib(0xc0006da000)
            	/private/var/folders/dx/k53rs1s93538b4x20g46cj_w0000gn/T/workdir/go/src/cmd/link/internal/ld/lib.go:555 +0x849
            cmd/link/internal/ld.Main(0x1450fa0, 0x10, 0x20, 0x1, 0x7, 0x10, 0x1297f7b, 0x1b, 0x1294bad, 0x14, ...)
            	/private/var/folders/dx/k53rs1s93538b4x20g46cj_w0000gn/T/workdir/go/src/cmd/link/internal/ld/main.go:208 +0xb5f
            main.main()
            	/private/var/folders/dx/k53rs1s93538b4x20g46cj_w0000gn/T/workdir/go/src/cmd/link/main.go:65 +0x1d6
            [exit status 2]
            FAIL: testdata/script/mod_modinfo.txt:12: unexpected command failure
            
FAIL
FAIL	cmd/go	137.320s

I'm not sure whether this is another manifestation of the same signal-handling bug, or something else entirely.

I've only seen it once so far.

CC @ianlancetaylor @cherrymui @mdempsky @jeremyfaller
@bcmills bcmills added OS-Darwin NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. labels Aug 12, 2019
@bcmills bcmills added this to the Unplanned milestone Aug 12, 2019
@jeremyfaller
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Signal handler bug @bcmills is referencing: (https://golang.org/issue/31264)

@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 13, 2022
@bcmills bcmills added the WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided. label Dec 11, 2023
@bcmills bcmills modified the milestones: Unplanned, Backlog Dec 11, 2023
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Timed out in state WaitingForInfo. Closing.

(I am just a bot, though. Please speak up if this is a mistake or you have the requested information.)

@gopherbot gopherbot closed this as not planned Won't fix, can't repro, duplicate, stale Jan 11, 2024
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compiler/runtime Issues related to the Go compiler and/or runtime. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin WaitingForInfo Issue is not actionable because of missing required information, which needs to be provided.
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