From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f70.google.com (mail-oi0-f70.google.com [209.85.218.70]) by kanga.kvack.org (Postfix) with ESMTP id 84A126B0253 for ; Mon, 1 Aug 2016 21:45:03 -0400 (EDT) Received: by mail-oi0-f70.google.com with SMTP id u142so336512438oia.2 for ; Mon, 01 Aug 2016 18:45:03 -0700 (PDT) Received: from szxga03-in.huawei.com (szxga03-in.huawei.com. [119.145.14.66]) by mx.google.com with ESMTPS id t16si51107ota.66.2016.08.01.18.45.01 for (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 01 Aug 2016 18:45:02 -0700 (PDT) Message-ID: <579FFA39.7070902@huawei.com> Date: Tue, 2 Aug 2016 09:41:13 +0800 From: zhong jiang MIME-Version: 1.0 Subject: Re: [PATCH] mm: add restriction when memory_hotplug config enable References: <1470063651-29519-1-git-send-email-zhongjiang@huawei.com> <20160801125417.ece9c623f03d952a60113a3f@linux-foundation.org> In-Reply-To: <20160801125417.ece9c623f03d952a60113a3f@linux-foundation.org> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-mm@kvack.org, Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , kasan-dev@googlegroups.com On 2016/8/2 3:54, Andrew Morton wrote: > On Mon, 1 Aug 2016 23:00:51 +0800 zhongjiang wrote: > >> From: zhong jiang >> >> At present, It is obvious that memory online and offline will fail >> when KASAN enable, > huh, I didn't know that. What's the problem and are there plans to fix it? when I test the memory hotplug function. The memory online and offline always fails. because I forget the turn off the KASAN config. I know it is not compatible with hotplug. In fact, but I always forget to do so. >> therefore, it is necessary to add the condition >> to limit the memory_hotplug when KASAN enable. >> >> Signed-off-by: zhong jiang >> --- >> mm/Kconfig | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/mm/Kconfig b/mm/Kconfig >> index 3e2daef..f6dd77e 100644 >> --- a/mm/Kconfig >> +++ b/mm/Kconfig >> @@ -187,6 +187,7 @@ config MEMORY_HOTPLUG >> bool "Allow for memory hot-add" >> depends on SPARSEMEM || X86_64_ACPI_NUMA >> depends on ARCH_ENABLE_MEMORY_HOTPLUG >> + depends on !KASAN >> >> config MEMORY_HOTPLUG_SPARSE >> def_bool y > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: email@kvack.org > > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org