[brendangregg]

Not really; DTrace has never been advertised as a tool for Linux. I've talked about the in-development ports, and that they aren't complete, and that they can panic/freeze systems.

OTOH, SystemTap is advertised as tracing for Linux, and that it's safe for production use. My customers are running Linux, usually Ubuntu, and so I tried using SystemTap.

I wouldn't have written that blog post if the SystemTap homepage simply said: "SystemTap is a tracing tool for RHEL. There are ports in progress for Ubuntu and others, which may panic or freeze systems."

I disagree with the logic for not warning customers of this, and I think it's bad for Red Hat. If the homepage had stated that it's a RHEL tool, those frustrated users would have known to try RHEL, instead of giving up entirely.

[nailer]

If your issue is that SystemTap is advertised as being for Linux but not all distros adopt it, then that really, really doesn't come across from reading your article. At all.