linux-kernel - Re: [PATCHv2] mm: use stack_depot_early

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Message-ID: <CAGWkznEUykN88ucXDEBQNtR-uL=yr6Bh7nfQ1YL_QqBAvF2AQg@mail.gmail.com>
Date:   Wed, 18 Jan 2023 09:30:56 +0800
From:   Zhaoyang Huang <huangzhaoyang@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     "zhaoyang.huang" <zhaoyang.huang@...soc.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Nathan Chancellor <nathan@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, ke.wang@...soc.com,
        Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
Subject: Re: [PATCHv2] mm: use stack_depot_early_init for kmemleak

On Wed, Jan 18, 2023 at 8:18 AM Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Tue, 17 Jan 2023 16:11:52 +0800 "zhaoyang.huang" <zhaoyang.huang@...soc.com> wrote:
>
> > Mirsad report bellow error which caused by stack_depot_init failed in kvcalloc.
> > Solve this by having stackdepot use stack_depot_early_init. Extra Kconfig also
> > done by moving kmemleak stuff to mm/Kconfig.debug.
>
> Are we able to identify which commit caused this regression?
Actually, It could be deemed as a defect of 'mm: use stack_depot for
recording kmemleak's backtrace'(56a61617d).
>
> Thanks.