From: Ralf Baechle <ralf@linux-mips.org>
To: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH] mips/kprobes: flush_insn_slot should flush only if probe initialised
Date: Thu, 8 Jun 2017 15:41:07 +0200 [thread overview]
Message-ID: <20170608134107.GA11304@linux-mips.org> (raw)
In-Reply-To: <1496928032-561-1-git-send-email-marcin.nowakowski@imgtec.com>
On Thu, Jun 08, 2017 at 03:20:32PM +0200, Marcin Nowakowski wrote:
> When ftrace is used with kprobes, it is possible for a kprobe to contain
> an invalid location (ie. only initialised to 0 and not to a specific
> location in the code). Trying to perform a cache flush on such location
> leads to a crash r4k_flush_icache_range().
Cute, 2.6.36+ ...
Applied,
Ralf
prev parent reply other threads:[~2017-06-08 13:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 13:20 [PATCH] mips/kprobes: flush_insn_slot should flush only if probe initialised Marcin Nowakowski
2017-06-08 13:20 ` Marcin Nowakowski
2017-06-08 13:41 ` Ralf Baechle [this message]
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