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

From Josh Poimboeuf <jpoimboe@redhat.com>
Newsgroups linux.kernel
Subject Re: arch/x86/kernel/ftrace.o: warning: objtool: ftrace_modify_code_direct()+0x2d: sibling call from callable instruction with modified stack frame
Date 2017-07-06 16:40 +0200
Message-ID <u0g6L-60R-33@gated-at.bofh.it> (permalink)
References <u0fDH-5sz-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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

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Re: arch/x86/kernel/ftrace.o: warning: objtool:  ftrace_modify_code_direct()+0x2d: sibling call from callable instruction  with modified stack frame Josh Poimboeuf <jpoimboe@redhat.com> - 2017-07-06 16:40 +0200

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