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Message-ID: <CAG5DWoj_5cQmQUtd+784sQNW7RhfXUWivP8cbOpADiS1Li35Fg@mail.gmail.com>
Date:	Sat, 26 Oct 2013 01:01:06 +0400
From:	Azat Khuzhin <a3at.mail@...il.com>
To:	open list <linux-kernel@...r.kernel.org>
Cc:	jovi.zhangwei@...il.com
Subject: kprobe: "BUG: unable to handle kernel paging request"

With some kernel's configuration there is such messages in dmesg in
different places while using kprobes.

I investigated this and founded that it reproduced with
https://gist.github.com/azat/7078890#file-config-3-12-0-rc5-deb
And not reproduced with
https://gist.github.com/azat/7078890#file-config-3-12-0-rc5-worked-kprobe

I used the next script for testing
https://gist.github.com/azat/7078890#file-ktap-sh

Here is the initial email log with Jovi (ktap author):
http://www.freelists.org/post/ktap/BUG-unable-to-handle-kernel-paging-request-after-ktap-script-to-trace-SyS-write

If I can help, please let me know!
Thanks!

-- 
Respectfully
Azat Khuzhin
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