From: Masami Hiramatsu <mhiramat@redhat.com>
Date: Thu, 27 Aug 2009 17:23:32 +0000 (-0400)
Subject: kprobes: Prohibit to probe native_get_debugreg
X-Git-Tag: v2.6.33-rc1~399^2~231
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=65e234ec2c4a0659ca22531dc1372a185f088517;p=pandora-kernel.git

kprobes: Prohibit to probe native_get_debugreg

Since do_debug() calls get_debugreg(), native_get_debugreg() will be
called from singlestepping. This can cause an int3 infinite loop.

We can't put it in the .text.kprobes section because it is inlined,
then we blacklist its name.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20090827172332.8246.34194.stgit@localhost.localdomain>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---

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