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Date:	Thu, 3 Apr 2014 17:52:55 -0700
From:	Kees Cook <>
To:	Rabin Vincent <>
Cc:	Laura Abbott <>,
	Alexander Holler <>,
	Catalin Marinas <>,
	Will Deacon <>,
	LKML <>,
	Russell King <>
Subject: Re: [PATCH] arm: don't allow CONFIG_DEBUG_SET_MODULE_RONX if

On Thu, Apr 3, 2014 at 4:48 PM, Rabin Vincent <> wrote:
> On Thu, Apr 03, 2014 at 04:14:54PM -0700, Kees Cook wrote:
>> On Tue, Apr 1, 2014 at 4:08 PM, Rabin Vincent <> wrote:
>> > Here's a patch (probably whitespace damaged, hence also attached) with
>> > which dynamic ftrace works for me on top your other paches.  Tested on
>> > a non-LPAE SMP.
>> Thanks! I'll incorporate calls to set_all_modules_text_rw/ro and see
>> what I can make work.
> You can use the patch I posted yesterday for module support:

Yup, that's basically what I had too.

So, even with your patch, I still get faults with ftrace.
probe_kernel_write still errors for me, and I don't see why. I will
send an updated patch series with my current CONFIG_DEBUG_RODATA work


Kees Cook
Chrome OS Security
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