From: Mel Gorman <mgorman@suse.de>
To: Gavin Shan <gwshan@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, zhlcindy@linux.vnet.ibm.com,
aneesh.kumar@linux.vnet.ibm.com
Subject: Re: [PATCH] mm: Disable DEFERRED_STRUCT_PAGE_INIT on !NO_BOOTMEM
Date: Thu, 14 Apr 2016 11:52:43 +0100 [thread overview]
Message-ID: <20160414105243.GC27534@suse.de> (raw)
In-Reply-To: <1460602170-5821-1-git-send-email-gwshan@linux.vnet.ibm.com>
On Thu, Apr 14, 2016 at 12:49:30PM +1000, Gavin Shan wrote:
> When we have !NO_BOOTMEM, the deferred page struct initialization
> doesn't work well because the pages reserved in bootmem are released
> to the page allocator uncoditionally. It causes memory corruption
> and system crash eventually.
>
> As Mel suggested, the bootmem is retiring slowly. We fix the issue
> by simply hiding DEFERRED_STRUCT_PAGE_INIT when bootmem is enabled.
>
> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
--
Mel Gorman
SUSE Labs
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prev parent reply other threads:[~2016-04-14 10:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 2:49 [PATCH] mm: Disable DEFERRED_STRUCT_PAGE_INIT on !NO_BOOTMEM Gavin Shan
2016-04-14 10:52 ` Mel Gorman [this message]
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