It looks like /proc/interrupts support was added in #475 .

But it's unclear how this interface works or if it ever worked.

For example:

• Interrupts() calls into p.path() to get the path to the interrupts file

  • procfs/proc_interrupts.go

    Line 45 in bb7727a

    data, err := util.ReadFileNoStat(p.path("interrupts"))

• But p.path() prepends a pid to the path

  • procfs/proc.go

    Line 288 in bb7727a

    return p.fs.Path(append([]string{strconv.Itoa(p.PID)}, pa...)...)

/proc/<pid>/interrupts does not exist. There is only /proc/interrupts.