From: "wenji dot huang at oracle dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug testsuite/10084] systemtap.examples/network/dropwatch fails on kernels without kfree_skb tracepoint
Date: Fri, 03 Jul 2009 07:54:00 -0000 [thread overview]
Message-ID: <20090703075412.10237.qmail@sourceware.org> (raw)
In-Reply-To: <20090419124804.10084.mjw@redhat.com>
------- Additional Comments From wenji dot huang at oracle dot com 2009-07-03 07:54 -------
See the definition of trace point in kfree_skb(struct sk_buff *skb)
...
else if (likely(!atomic_dec_and_test(&skb->users)))
return;
trace_kfree_skb(skb, __builtin_return_address(0));
__kfree_skb(skb);
}
Maybe we can select __kfree_skb as the probe point. But Not easy to find the
replacement for the parameter __builtin_return_address(0).
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10084
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next prev parent reply other threads:[~2009-07-03 7:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-19 12:48 [Bug testsuite/10084] New: " mjw at redhat dot com
2009-04-19 16:15 ` [Bug testsuite/10084] " fche at redhat dot com
2009-07-03 7:54 ` wenji dot huang at oracle dot com [this message]
2009-07-03 13:01 ` fche at redhat dot com
2009-07-09 7:25 ` wenji dot huang at oracle dot com
2009-09-09 4:58 ` wenji dot huang at oracle dot com
2009-09-09 10:29 ` mjw at redhat dot com
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