linux-kernel - Re: arch/x86/kernel/ftrace.o: warning: objtool: ftrace_modify_code_direct()+0x2d: sibling call from callable instruction with modified stack frame

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-prev] [day] [month] [year] [list]

Date:   Thu, 6 Jul 2017 09:31:39 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     Mike Galbraith <efault@....de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: arch/x86/kernel/ftrace.o: warning: objtool:
 ftrace_modify_code_direct()+0x2d: sibling call from callable instruction
 with modified stack frame

On Thu, Jul 06, 2017 at 04:09:18PM +0200, Mike Galbraith wrote:
> Greetings,
> 
> I'm seeing $subject in master as of this merge window.  I don't see it
> with my usual stripped down PREEMPT_VOLUNTARY or an enterprise-ish
> NOPREEMPT config, but do see it with the attached, derived from my
> enterprise-ish PREEMPT_RT config after running make oldconfig on it,
> and reproducing the warning in virgin source.

Thanks, looks like an objtool bug.  Will fix.

-- 
Josh