linux-kernel - Re: [PATCH] mm: slub: add panic_on

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Date:   Sun, 3 May 2020 22:36:43 -0400
From:   Rafael Aquini <aquini@...hat.com>
To:     Qian Cai <cai@....pw>
Cc:     Linux-MM <linux-mm@...ck.org>, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org, iamjoonsoo.kim@....com,
        rientjes@...gle.com, penberg@...nel.org, cl@...ux.com
Subject: Re: [PATCH] mm: slub: add panic_on_error to the debug facilities

On Fri, May 01, 2020 at 07:17:24PM -0400, Qian Cai wrote:
> 
> 
> > On May 1, 2020, at 5:54 PM, Rafael Aquini <aquini@...hat.com> wrote:
> > 
> > It seems like a good idea which also would required "adding things"
> > elsewhere, but doesn't look mutually exclusive with the approach here.
> 
> Also, what’s so special about these bad pages here that deserve a crash dump, but not other TAINT_BAD_PAGE places?
>

In that light, yes they're not as different and we could better leverage
a panic_on_taint mechanism (similar to panic_on_warn).

I'll get that posted soon.

Thanks.
-- Rafael