From: stefan@agner.ch (Stefan Agner)
To: linux-arm-kernel@lists.infradead.org
Subject: Dynamic ftrace self test broken on ARM
Date: Wed, 20 Jun 2018 21:06:38 +0200 [thread overview]
Message-ID: <7904ed3fe9f59a54526d64f366915b43@agner.ch> (raw)
In-Reply-To: <20180620101311.0bcd73d3@gandalf.local.home>
On 20.06.2018 16:13, Steven Rostedt wrote:
> On Wed, 20 Jun 2018 15:51:55 +0200
> Stefan Agner <stefan@agner.ch> wrote:
>
>
>> v4.9 seems to work, so I started bisecting. It turned out that commit
>> 6f05d0761af6 ("ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA
>> and !FRAME_POINTER") broke it, introduced during the v4.12 merge window.
>
> That patch doesn't appear to be the cause. It could have been a failed
> bisect. Does the commit before that commit work? Does that commit fail?
Pretty sure it is that one. Reverting it on top of v4.18-rc1 fixes it...
>
> It may be due to some other RODATA change though. That is actually one
> of my thoughts when looking at the bug.
CONFIG_STRICT_KERNEL_RWX=y is set, will test without.
--
Stefan
next prev parent reply other threads:[~2018-06-20 19:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-18 21:09 Dynamic ftrace self test broken on ARM Stefan Agner
2018-06-18 21:54 ` Steven Rostedt
2018-06-19 8:16 ` Stefan Agner
2018-06-19 13:17 ` Steven Rostedt
2018-06-20 13:51 ` Stefan Agner
2018-06-20 14:13 ` Steven Rostedt
2018-06-20 19:06 ` Stefan Agner [this message]
2018-06-20 21:32 ` Stefan Agner
2018-06-20 22:45 ` Stefan Agner
2018-06-20 23:07 ` Russell King - ARM Linux
2018-06-21 1:29 ` Steven Rostedt
2018-06-21 7:25 ` Stefan Agner
2018-06-21 13:51 ` Steven Rostedt
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