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Date:   Mon, 15 Apr 2019 18:21:48 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Andy Lutomirski <luto@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, X86 ML <x86@...nel.org>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Pekka Enberg <penberg@...nel.org>,
        Linux-MM <linux-mm@...ck.org>
Subject: Re: [patch V4 01/32] mm/slab: Fix broken stack trace storage

On Mon, Apr 15, 2019 at 06:07:44PM +0200, Thomas Gleixner wrote:
> On Mon, 15 Apr 2019, Josh Poimboeuf wrote:
> > > +		struct stack_trace trace = {
> > > +			/* Leave one for the end marker below */
> > > +			.max_entries	= size - 1,
> > > +			.entries	= addr,
> > > +			.skip		= 3,
> > > +		};

> > Looks like stack_trace.nr_entries isn't initialized?  (though this code
> > gets eventually replaced by a later patch)
> 
> struct initializer initialized the non mentioned fields to 0, if I'm not
> totally mistaken.

Correct.

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