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cmd/link: SIGBUS error when linking (because disk space consumed) #41466

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jasperdenotter opened this issue Sep 17, 2020 · 3 comments
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@jasperdenotter
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What version of Go are you using (go version)?

$ go version go1.13 linux/amd64

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

go env Output
$ go env

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/jasper/.cache/go-build"
GOENV="/home/jasper/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"

What did you do?

I tried to run make to build my golang project

What did you expect to see?

Normal binaries being built

What did you see instead?

unexpected fault address 0x7fad5e500000
fatal error: fault
[signal SIGBUS: bus error code=0x2 addr=0x7fad5e500000 pc=0x45b96a]

goroutine 1 [running]:
runtime.throw(0x690d25, 0x5)
        /usr/local/go/src/runtime/panic.go:774 +0x72 fp=0xc00085cef0 sp=0xc00085cec0 pc=0x42da22
runtime.sigpanic()
        /usr/local/go/src/runtime/signal_unix.go:391 +0x455 fp=0xc00085cf20 sp=0xc00085cef0 pc=0x4429c5
runtime.memmove(0x7fad5e1fa520, 0xc00d9ac000, 0x632a42)
        /usr/local/go/src/runtime/memmove_amd64.s:422 +0x50a fp=0xc00085cf28 sp=0xc00085cf20 pc=0x45b96a
cmd/link/internal/ld.(*OutBuf).Write(0xc0006ca000, 0xc00d9ac000, 0x632a42, 0x950144, 0x200, 0x10, 0x0)
        /usr/local/go/src/cmd/link/internal/ld/outbuf.go:65 +0xa0 fp=0xc00085cf78 sp=0xc00085cf28 pc=0x5ac2e0
cmd/link/internal/ld.(*OutBuf).WriteSym(0xc0006ca000, 0xc00aec2080)
        /usr/local/go/src/cmd/link/internal/ld/outbuf.go:159 +0x6c fp=0xc00085cfc8 sp=0xc00085cf78 pc=0x5acaac
cmd/link/internal/ld.blk(0xc0006ca000, 0xc00f314000, 0x169eb, 0x1c400, 0x135f520, 0xb8bf62, 0x8771c0, 0x200, 0x200)
        /usr/local/go/src/cmd/link/internal/ld/data.go:786 +0x10f fp=0xc00085d098 sp=0xc00085cfc8 pc=0x55972f
cmd/link/internal/ld.writeDatblkToOutBuf(0xc0006c8000, 0xc0006ca000, 0xe06000, 0xb8bf62)
        /usr/local/go/src/cmd/link/internal/ld/data.go:825 +0xaf fp=0xc00085d260 sp=0xc00085d098 pc=0x559d7f
cmd/link/internal/ld.Datblk(...)
        /usr/local/go/src/cmd/link/internal/ld/data.go:808
cmd/link/internal/amd64.asmb(0xc0006c8000)
        /usr/local/go/src/cmd/link/internal/amd64/asm.go:688 +0x1fe fp=0xc00085d2d0 sp=0xc00085d260 pc=0x5d1ade
cmd/link/internal/ld.Main(0x84bdc0, 0x10, 0x20, 0x1, 0x7, 0x10, 0x69aa6a, 0x1b, 0x697551, 0x14, ...)
        /usr/local/go/src/cmd/link/internal/ld/main.go:262 +0xd5d fp=0xc00085d428 sp=0xc00085d2d0 pc=0x5ab32d
main.main()
        /usr/local/go/src/cmd/link/main.go:65 +0x1d6 fp=0xc00085df60 sp=0xc00085d428 pc=0x614396
runtime.main()
        /usr/local/go/src/runtime/proc.go:203 +0x21e fp=0xc00085dfe0 sp=0xc00085df60 pc=0x42f3be
runtime.goexit()
        /usr/local/go/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc00085dfe8 sp=0xc00085dfe0 pc=0x45a2b1

Resolution

The problem was that the "/" directory was 100% consumed and there was not enough space to build the project. The error message from build should be a bit more clear

@jasperdenotter jasperdenotter changed the title SIGBUS error when running make SIGBUS error when running make (because disk space consumed) Sep 17, 2020
@davecheney
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Hi. Thanks for raising this issue. Can you please upgrade to go 1.15.2 and confirm if the problem is present there.

@rsc
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rsc commented Sep 18, 2020

This looks like a real bug. I believe the new linker is memory mapping the output, but given the trace it appears not be using runtime/debug.SetPanicOnFault and reporting handling memory faults from I/O errors gracefully.

/cc @cherrymui @thanm @jeremyfaller

@ianlancetaylor ianlancetaylor changed the title SIGBUS error when running make (because disk space consumed) cmd/link: SIGBUS error when linking (because disk space consumed) Sep 18, 2020
@ianlancetaylor ianlancetaylor added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Sep 18, 2020
@ianlancetaylor ianlancetaylor added this to the Go1.16 milestone Sep 18, 2020
@cherrymui
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Looks like dup of #37310, which is fixed on Linux and darwin in Go 1.15 (by preallocating file space), but not on other OSes.

Go 1.13 is no longer supported.

Closing as a dup.

If we do #41155, we could use SetPanicOnFault to make it fail gracefully on OSes we don't preallocate.

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