linux-kernel - Re: [PATCH] mm/slub: Add a dump_stack() to the unexpected GFP check

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Message-ID: <20170116101310.4n5qof3skqpoyvup@pd.tnic>
Date:   Mon, 16 Jan 2017 11:13:10 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Michal Hocko <mhocko@...nel.org>, Vlastimil Babka <vbabka@...e.cz>,
        Linux MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/slub: Add a dump_stack() to the unexpected GFP check

On Mon, Jan 16, 2017 at 12:09:30PM +0200, Leon Romanovsky wrote:
> And doesn't dump_stack do the same? It pollutes the log too.

It is not about polluting the log - it is about tainting.

__warn()->add_taint(taint, LOCKDEP_STILL_OK);

-- 
Regards/Gruss,
    Boris.

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