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From: Tiejun Chen <tiejun.chen@windriver.com>
To: <benh@kernel.crashing.org>
Subject: [v3] booke/kprobe: Fix stack corrupt issue when kprobe 'stwu'
Date: Mon, 11 Jul 2011 19:31:55 +0800
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v1 -> v2: when allocate pgirq_ctx, use 'hw_cpu' to identify cpu ID in exc_lvl_early_init().
v2 -> v3: add that specific return-from-program-exc to restore necessary thread info then
we can withdraw the original patch #2.

Tiejun