From: Ingo Molnar <mingo@elte.hu>
To: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: rostedt@goodmis.org, Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/3] ftrace: prevent freeing of all failed updates
Date: Tue, 10 Jun 2008 11:57:40 +0200 [thread overview]
Message-ID: <20080610095740.GF27706@elte.hu> (raw)
In-Reply-To: <4842CB9A.1080800@gmail.com>
* Abhishek Sagar <sagar.abhishek@gmail.com> wrote:
> Prevent freeing of records which cause problems and correspond to
> function from core kernel text. A new flag, FTRACE_FL_CONVERTED is
> used to mark a record as "converted". All other records are patched
> lazily to NOPs. Failed records now also remain on frace_hash table.
> Each invocation of ftrace_record_ip now checks whether the traced
> function has ever been recorded (including past failures) and doesn't
> re-record it again.
applied to tip/tracing/ftrace, thanks Abhishek.
Ingo
prev parent reply other threads:[~2008-06-10 9:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-01 16:17 [PATCH 1/3] ftrace: prevent freeing of all failed updates Abhishek Sagar
2008-06-02 18:02 ` Steven Rostedt
2008-06-03 3:03 ` Abhishek Sagar
2008-06-10 9:59 ` Ingo Molnar
2008-06-10 9:57 ` Ingo Molnar [this message]
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