From: Abhishek Sagar <sagar.abhishek@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: jkenisto@us.ibm.com, ananth@in.ibm.com,
Masami Hiramatsu <mhiramat@redhat.com>,
Ingo Molnar <mingo@elte.hu>
Subject: [PATCH 0/3][RFC] x86: Catch stray non-kprobe breakpoints
Date: Sun, 27 Jan 2008 14:38:56 +0530 [thread overview]
Message-ID: <479C4A28.3020705@gmail.com> (raw)
Greetings,
Non kprobe breakpoints in the kernel might lie inside the .kprobes.text section. Such breakpoints can easily be identified by in_kprobes_functions and can be caught early. These are problematic and a warning should be emitted to discourage them (in any rare case, if they actually occur).
For this, a check can route the trap handling of such breakpoints away from kprobe_handler (which ends up calling even more functions marked as __kprobes) from inside kprobe_exceptions_notify.
All comments/suggestions are welcome.
--
Thanks & Regards,
Abhishek Sagar
next reply other threads:[~2008-01-27 9:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-27 9:08 Abhishek Sagar [this message]
2008-01-29 6:02 ` [PATCH 0/3][RFC] x86: Catch stray non-kprobe breakpoints Ananth N Mavinakayanahalli
2008-01-29 10:40 ` Abhishek Sagar
2008-01-29 13:18 ` Ananth N Mavinakayanahalli
2008-01-29 17:24 ` Abhishek Sagar
2008-01-29 15:13 ` Masami Hiramatsu
2008-01-29 18:08 ` Abhishek Sagar
2008-01-29 19:29 ` Masami Hiramatsu
2008-01-30 4:07 ` Ananth N Mavinakayanahalli
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