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Date:   Wed, 6 May 2020 20:37:03 +0200
From:   Peter Zijlstra <>
To:     "Paul E. McKenney" <>
Cc:     Alexandre Chartre <>,
        Thomas Gleixner <>,
        LKML <>,,
        Andy Lutomirski <>,
        Frederic Weisbecker <>,
        Paolo Bonzini <>,
        Sean Christopherson <>,
        Masami Hiramatsu <>,
        Petr Mladek <>,
        Steven Rostedt <>,
        Joel Fernandes <>,
        Boris Ostrovsky <>,
        Juergen Gross <>,
        Brian Gerst <>,
        Mathieu Desnoyers <>,
        Josh Poimboeuf <>,
        Will Deacon <>
Subject: Re: [patch V4 part 1 03/36] sched: Clean up scheduler_ipi()

On Wed, May 06, 2020 at 11:28:56AM -0700, Paul E. McKenney wrote:
> I still see warnings of the form "leave instruction with modified stack
> frame" from older complilers and of the form "undefined stack state"
> from newer compilers.  I am running stock objtool versions, so I am
> guessing that this is at least one reason for these warnings.

Part 5, patch 2, might be responsible. I still have to look at curing

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