linux-kernel - Bug with jprobes and function graph tracer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150108122016.0241f713@gandalf.local.home>
Date:	Thu, 8 Jan 2015 12:20:16 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, vvs@...ru
Subject: Bug with jprobes and function graph tracer

Hi Masami,

First, I would like to wish you a Happy New Year :-)

OK, now back to business.

It has come to my attention that jprobes and function graph tracing do
not play nicely together. I think you once told me they have issues as
well.

A simple way to test this is to load the jprobe_example.ko module and
then run function graph tracing.

Should we try to fix this? Or should it just be that users need to know
not to enable the two together. Or we can prevent one from starting if
the other is being used.

Looking forward to hearing your thoughts on the subject.

-- Steve
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/