x/tools/cmd/goimports: hangs in uninterruptible sleep

[tcoffee-google]

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.7.3 linux/amd64

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

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/usr/local/google/home/tcoffee/go"
GORACE=""
GOROOT="/usr/lib/google-golang"
GOTOOLDIR="/usr/lib/google-golang/pkg/tool/linux_amd64"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build134362667=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"

What did you do?

Run goimports -w myfile.go.

What did you expect to see?

Program termination.

What did you see instead?

The goimports process goes into uninterruptible sleep, blocking on disk I/O (status 'D') for at least 20 minutes, and hence cannot be killed without rebooting.

[kevinburke]

tcoffee-google, is there anything special or interesting about myfile.go?

[bradfitz]

Are you using one of Google's internal FUSE filesystems? If so I'd mail the Google internal mailing lists for tips.

[aeneasr]

I have the same issue on Windows, it's a larger project. Command goimports $(go list -f {{.Dir}} ./... | grep -v vendor) outputs files but is incredibly slow - probably 1-2 seconds per file? Running with flags -d or -w nothing happens and goimport just hangs. I'm not sure if it's just very slow to process everything or if it really hangs. This took at most 2 seconds some time back.

I recently did go get -u golang.org/x/tools/cmd/goimports and used your (@bradfitz ) version before that but I'm experiencing the same issue when downgrading. I recently upgraded to Go 1.11.1

Also, goimports runs with almost zero resources used (CPU, Disk, Memory):

Any ideas?

[aeneasr]

After a reboot the issue persists. What's interesting though is that gofmt works perfectly, so I doubt that this is an OS issue.

[gopherbot]

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.)

[arnavsharma93]

I'm facing this too. goimports used to be much faster. Now, it hangs my editor for a second or two. Any idea how to fix it?

[bradfitz]

@arnavsharma93, this is a closed bug and we don't track closed bugs. If you want to open a new bug, please include a lot more info. Piling on this overloaded bug just gets distracting.