ERROR and WARNINGS

[Sloot, Hans-Peter]

Hi all,

When running the script below it stops after some time while giving the
error and warnings further below.
Am I doing something wrong or is it unavoidable?

Regards HansP

global aantal

probe syscall.*.return {
                aantal[name] += 1
}

probe timer.s(5) {
    printf ("%16s\t%10s\n", "Syscall", "Aantal")
    foreach (name in aantal- limit 20)
        printf("%16s\t%10d\n", name, aantal[name])
    delete aantal
    print("\n")
}



ERROR: probe overhead exceeded threshold
WARNING: Skipped due to missed kretprobe/1 on
'kernel.function("sys_futex@kernel/futex.c:2115").return?': 7732338
WARNING: Skipped due to missed kretprobe/1 on
'kernel.function("sys_nanosleep@kernel/hrtimer.c:796").return': 898390
WARNING: Skipped due to missed kretprobe/1 on
'kernel.function("sys_poll@fs/select.c:742").return': 24900474
WARNING: Skipped due to missed kretprobe/1 on
'kernel.function("sys_semtimedop@ipc/sem.c:1064").return?': 61912
WARNING: Skipped due to missed kretprobe/1 on
'kernel.function("sys_semtimedop@ipc/sem.c:1064").return?': 61912
WARNING: Number of errors: 1, skipped probes: 33655026
probe syscall.*.return (syscalls_sum.stp:3:1), hits: 196487404, cycles:
-955085min/1691avg/110755975max
probe timer.s(5) (syscalls_sum.stp:7:1), hits: 1158, cycles:
74598min/92131avg/586290max
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