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[Bug tapsets/5510] no match while resolving probe point sunrpc.sched.release_task.return
- From: "joshua dot i dot stone at intel dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 10 Jan 2008 15:43:09 -0000
- Subject: [Bug tapsets/5510] no match while resolving probe point sunrpc.sched.release_task.return
- References: <20071219011502.5510.baiwd@cn.fujitsu.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From joshua dot i dot stone at intel dot com 2008-01-10 15:43 -------
(In reply to comment #3)
> I think this should use "never" and "!" like below.
>
> ---
> probe sunrpc.sched.release_task.return =
> kernel.function("rpc_release_task").return !,
> module("sunrpc").function("rpc_release_task").return !,
> never {...
> ---
Be careful with the use of 'never', because it will cause things to silently
fail. A simple script like:
probe sunrpc.sched.release_task.return { println("Hi!") }
... might end up with no real probes at all.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=5510
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