From: Greg KH <greg@kroah.com>
To: Mike Rapoport <rppt@kernel.org>
Cc: stable@vger.kernel.org, Geert Uytterhoeven <geert@linux-m68k.org>,
Finn Thain <fthain@linux-m68k.org>,
Mikael Pettersson <mikpelinux@gmail.com>,
Mike Rapoport <rppt@linux.ibm.com>,
linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org
Subject: Re: [PATCH stable 5.10] mm: make zone_to_nid() and zone_set_nid() available for DISCONTIGMEM
Date: Fri, 13 Aug 2021 10:42:39 +0200 [thread overview]
Message-ID: <YRYwf3rAHfWUWfiL@kroah.com> (raw)
In-Reply-To: <20210811134139.5451-1-rppt@kernel.org>
On Wed, Aug 11, 2021 at 04:41:39PM +0300, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> Since the commit ce6ee46e0f39 ("mm/page_alloc: fix memory map
> initialization for descending nodes") initialization of the memory map
> relies on availability of zone_to_nid() and zone_set_nid methods to link
> struct page to a node.
>
> But in 5.10 zone_to_nid() is only defined for NUMA, but not for
> DISCONTIGMEM which causes crashes on m68k systems with two memory banks.
>
Many thanks for the work done to figure this out and fix it. Now queued
up.
greg k-h
next prev parent reply other threads:[~2021-08-13 8:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-11 13:41 [PATCH stable 5.10] mm: make zone_to_nid() and zone_set_nid() available for DISCONTIGMEM Mike Rapoport
2021-08-13 8:42 ` Greg KH [this message]
2021-08-13 9:04 ` Patch "mm: make zone_to_nid() and zone_set_nid() available for DISCONTIGMEM" has been added to the 5.10-stable tree gregkh
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