From: David Rientjes <rientjes@google.com>
To: Miles Chen <miles.chen@mediatek.com>
Cc: Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jonathan Corbet <corbet@lwn.net>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH v2] mm/slub: introduce SLAB_WARN_ON_ERROR
Date: Mon, 28 Jan 2019 17:41:59 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.21.1901281739230.216488@chino.kir.corp.google.com> (raw)
In-Reply-To: <1548313223-17114-1-git-send-email-miles.chen@mediatek.com>
On Thu, 24 Jan 2019, miles.chen@mediatek.com wrote:
> From: Miles Chen <miles.chen@mediatek.com>
>
> When debugging slab errors in slub.c, sometimes we have to trigger
> a panic in order to get the coredump file. Add a debug option
> SLAB_WARN_ON_ERROR to toggle WARN_ON() when the option is set.
>
Wouldn't it be better to enable/disable this for all slab caches instead
of individual caches at runtime? I'm not sure excluding some caches
because you know they'll WARN and trigger panic_on_warn unnecessarily is
valid since it could be enabled for that cache as well through this
interface.
next prev parent reply other threads:[~2019-01-29 1:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-24 7:00 miles.chen
2019-01-24 7:00 ` miles.chen
2019-01-28 20:29 ` Andrew Morton
2019-01-29 5:46 ` Christopher Lameter
2019-01-29 7:53 ` Miles Chen
2019-01-29 19:46 ` Christopher Lameter
2019-01-30 1:43 ` Miles Chen
2019-01-29 1:41 ` David Rientjes [this message]
2019-01-29 3:45 ` Miles Chen
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