From: Andrew Morton <akpm@linux-foundation.org>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
hughd@google.com, mgorman@suse.de
Subject: Re: [PATCH 0/5] mm: poison critical mm/ structs
Date: Wed, 1 Oct 2014 14:48:34 -0700 [thread overview]
Message-ID: <20141001144834.ff3ff0349951df734d159fb3@linux-foundation.org> (raw)
In-Reply-To: <542C749B.1040103@oracle.com>
On Wed, 01 Oct 2014 17:39:39 -0400 Sasha Levin <sasha.levin@oracle.com> wrote:
> > It looks fairly cheap - I wonder if it should simply fall under
> > CONFIG_DEBUG_VM rather than the new CONFIG_DEBUG_VM_POISON.
>
> Config options are cheap as well :)
Thing is, lots of people are enabling CONFIG_DEBUG_VM, but a smaller
number of people will enable CONFIG_DEBUG_VM_POISON. Less coverage.
Defaulting to y if CONFIG_DEBUG_VM might help, but if people do `make
oldconfig' when CONFIG_DEBUG_VM=n, their CONFIG_DEBUG_VM_POISON will
get set to `n' and will remain that way when they set CONFIG_DEBUG_VM
again.
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WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@linux-foundation.org>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
hughd@google.com, mgorman@suse.de
Subject: Re: [PATCH 0/5] mm: poison critical mm/ structs
Date: Wed, 1 Oct 2014 14:48:34 -0700 [thread overview]
Message-ID: <20141001144834.ff3ff0349951df734d159fb3@linux-foundation.org> (raw)
In-Reply-To: <542C749B.1040103@oracle.com>
On Wed, 01 Oct 2014 17:39:39 -0400 Sasha Levin <sasha.levin@oracle.com> wrote:
> > It looks fairly cheap - I wonder if it should simply fall under
> > CONFIG_DEBUG_VM rather than the new CONFIG_DEBUG_VM_POISON.
>
> Config options are cheap as well :)
Thing is, lots of people are enabling CONFIG_DEBUG_VM, but a smaller
number of people will enable CONFIG_DEBUG_VM_POISON. Less coverage.
Defaulting to y if CONFIG_DEBUG_VM might help, but if people do `make
oldconfig' when CONFIG_DEBUG_VM=n, their CONFIG_DEBUG_VM_POISON will
get set to `n' and will remain that way when they set CONFIG_DEBUG_VM
again.
next prev parent reply other threads:[~2014-10-01 21:48 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-30 1:47 [PATCH 0/5] mm: poison critical mm/ structs Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-09-30 1:47 ` [PATCH 1/5] mm: add poisoning basics Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-09-30 1:47 ` [PATCH 2/5] mm: constify dump_page and friends Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-09-30 1:47 ` [PATCH 3/5] mm: poison mm_struct Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-09-30 1:47 ` [PATCH 4/5] mm: poison vm_area_struct Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-09-30 1:47 ` [PATCH 5/5] mm: poison page struct Sasha Levin
2014-09-30 1:47 ` Sasha Levin
2014-10-07 22:02 ` Dave Hansen
2014-10-07 22:02 ` Dave Hansen
2014-10-08 7:10 ` Christoph Lameter
2014-10-08 7:10 ` Christoph Lameter
2014-10-08 14:22 ` Sasha Levin
2014-10-08 14:22 ` Sasha Levin
2014-10-01 21:07 ` [PATCH 0/5] mm: poison critical mm/ structs Andrew Morton
2014-10-01 21:07 ` Andrew Morton
2014-10-01 21:39 ` Sasha Levin
2014-10-01 21:39 ` Sasha Levin
2014-10-01 21:48 ` Andrew Morton [this message]
2014-10-01 21:48 ` Andrew Morton
2014-10-02 3:51 ` Sasha Levin
2014-10-02 3:51 ` Sasha Levin
2014-10-02 9:23 ` Hugh Dickins
2014-10-02 9:23 ` Hugh Dickins
2014-10-02 14:58 ` Sasha Levin
2014-10-02 14:58 ` Sasha Levin
2014-10-07 22:16 ` Dave Hansen
2014-10-07 22:16 ` Dave Hansen
2014-10-08 16:43 ` Sasha Levin
2014-10-08 16:43 ` Sasha Levin
2014-10-02 15:13 ` Dave Jones
2014-10-02 15:13 ` Dave Jones
2014-10-09 19:11 ` Sasha Levin
2014-10-09 19:11 ` Sasha Levin
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