From: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Date: Thu, 5 May 2005 23:15:40 +0000 (-0700)
Subject: [PATCH] Kprobes: Incorrect handling of probes on ret/lret instruction
X-Git-Tag: v2.6.12-rc4~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b9e2cac8a56e197d0a9e06268db4c8652d23dd5;p=pandora-kernel.git

[PATCH] Kprobes: Incorrect handling of probes on ret/lret instruction

Kprobes could not handle the insertion of a probe on the ret/lret
instruction and used to oops after single stepping since kprobes was
modifying eip/rip incorrectly.  Adjustment of eip/rip is not required after
single stepping in case of ret/lret instruction, because eip/rip points to
the correct location after execution of the ret/lret instruction.  This
patch fixes the above problem.

Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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