From: Sasha Levin <sashal@kernel.org>
To: gregkh@linuxfoundation.org
Cc: david@redhat.com, akpm@linux-foundation.org, mhocko@kernel.org,
n-horiguchi@ah.jp.nec.com, stable@vger.kernel.org,
torvalds@linux-foundation.org
Subject: Re: FAILED: patch "[PATCH] mm/memory-failure.c: don't access uninitialized memmaps in" failed to apply to 4.14-stable tree
Date: Mon, 28 Oct 2019 04:44:57 -0400 [thread overview]
Message-ID: <20191028084457.GJ1560@sasha-vm> (raw)
In-Reply-To: <1572183691251118@kroah.com>
On Sun, Oct 27, 2019 at 02:41:31PM +0100, gregkh@linuxfoundation.org wrote:
>
>The patch below does not apply to the 4.14-stable tree.
>If someone wants it applied there, or to any other stable or longterm
>tree, then please email the backport, including the original git commit
>id to <stable@vger.kernel.org>.
>
>thanks,
>
>greg k-h
>
>------------------ original commit in Linus's tree ------------------
>
>From 96c804a6ae8c59a9092b3d5dd581198472063184 Mon Sep 17 00:00:00 2001
>From: David Hildenbrand <david@redhat.com>
>Date: Fri, 18 Oct 2019 20:19:23 -0700
>Subject: [PATCH] mm/memory-failure.c: don't access uninitialized memmaps in
> memory_failure()
>
>We should check for pfn_to_online_page() to not access uninitialized
>memmaps. Reshuffle the code so we don't have to duplicate the error
>message.
>
>Link: http://lkml.kernel.org/r/20191009142435.3975-3-david@redhat.com
>Signed-off-by: David Hildenbrand <david@redhat.com>
>Fixes: f1dd2cd13c4b ("mm, memory_hotplug: do not associate hotadded memory to zones until online") [visible after d0dc12e86b319]
>Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
>Cc: Michal Hocko <mhocko@kernel.org>
>Cc: <stable@vger.kernel.org> [4.13+]
>Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
>Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I took in 83b57531c58f4 ("mm/memory_failure: Remove unused trapno from
memory_failure") for 4.14 to address this.
--
Thanks,
Sasha
next prev parent reply other threads:[~2019-10-28 8:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 13:41 FAILED: patch "[PATCH] mm/memory-failure.c: don't access uninitialized memmaps in" failed to apply to 4.14-stable tree gregkh
2019-10-28 8:44 ` Sasha Levin [this message]
2019-10-28 15:07 ` David Hildenbrand
2019-10-28 15:39 ` Sasha Levin
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