Errors in logs when scoping a go dynamic executable

[seanvaleo]

We see the following in scope logs at the default log level:

Scope: readdir(pid:84578): [2022-03-16T14:46:33.330-0400] ERROR: get_file_size:open
Scope: readdir(pid:84578): [2022-03-16T14:46:33.330-0400] ERROR:unmap_all: file size

...when scoping this test application:

package main

import (
	"log"
	"os"
)

func main() {
	// Call syscall.Readdir
	_, err := os.ReadDir(".")
	if err != nil {
		log.Fatal(err)
	}
}

[seanvaleo]

QA INSTRUCTIONS

(To run from source):
checkout this branch
make build CMD="make all" && make image
docker VERSION_ID is dev-x86_64

Part 1
Do:

docker run --rm -it cribl/scope:<VERSION_ID>
apt update && apt install -y golang curl file
curl https://pastebin.com/raw/R8P7ZFuD -o test_app.go
go build test_app.go
file test_app
scope test_app
scope logs

Expect:

• test_app is a statically-linked executable
• No errors in the logs