From: zhanghailiang <zhang.zhanghailiang@huawei.com>
To: Hu Tao <hutao@cn.fujitsu.com>
Cc: mst@redhat.com, luonengjun@huawei.com,
peter.huangpeng@huawei.com, qemu-devel@nongnu.org,
pbonzini@redhat.com, imammedo@redhat.com,
gaowanlong@cn.fujitsu.com
Subject: Re: [Qemu-devel] [PATCH 1/2] pc-dimm: No numa option shouldn't break hotplug memory feature
Date: Wed, 17 Sep 2014 17:25:32 +0800 [thread overview]
Message-ID: <5419538C.1050103@huawei.com> (raw)
In-Reply-To: <20140917083220.GA17032@G08FNSTD100614.fnst.cn.fujitsu.com>
On 2014/9/17 16:32, Hu Tao wrote:
> On Tue, Sep 16, 2014 at 06:39:15PM +0800, zhanghailiang wrote:
>> If we do not configure numa option, memory hotplug should work as well.
>> It should not depend on numa option.
>>
>> Steps to reproduce:
>> (1) Start VM: qemu-kvm -m 1024,slots=4,maxmem=8G
>> (2) Hotplug memory
>> It will fail and reports:
>> "'DIMM property node has value 0' which exceeds the number of numa nodes: 0"
>>
>
> I rememberd Tang Chen had a patch for this bug, this is what Andrey suggested:
>
> I thnk that there should be no
> cases when dimm is plugged (and check from patch is fired up) without
> actually populated NUMA, because not every OS will workaround this by
> faking the node.
>
> https://lists.nongnu.org/archive/html/qemu-devel/2014-08/msg04587.html
>
> Have you tested this patch with Windows guest?
>
Hmm, I have just tested this, and Yes, it didn't work for Windows guest.
Thanks for your kind reminder.;)
Best regards,
zhanghailiang
next prev parent reply other threads:[~2014-09-17 9:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-16 10:39 [Qemu-devel] [PATCH 0/2] fix two bugs about numa _and_ hotplug memory feature zhanghailiang
2014-09-16 10:39 ` [Qemu-devel] [PATCH 1/2] pc-dimm: No numa option shouldn't break " zhanghailiang
2014-09-17 8:32 ` Hu Tao
2014-09-17 9:25 ` zhanghailiang [this message]
2014-09-17 10:00 ` Tang Chen
2014-09-17 10:19 ` Andrey Korolyov
2014-09-18 0:58 ` Hu Tao
2014-09-19 12:26 ` Igor Mammedov
2014-09-22 9:03 ` Tang Chen
2014-09-22 9:46 ` zhanghailiang
2014-09-23 8:40 ` Igor Mammedov
2014-09-23 8:58 ` Tang Chen
2014-09-23 10:11 ` zhanghailiang
2014-09-23 10:32 ` Tang Chen
2014-09-23 11:12 ` Igor Mammedov
2014-09-23 12:38 ` zhanghailiang
2014-09-19 12:37 ` Igor Mammedov
2014-09-22 11:17 ` Michael S. Tsirkin
2014-09-23 9:01 ` Igor Mammedov
2014-09-23 10:07 ` zhanghailiang
2014-09-23 11:13 ` Igor Mammedov
2014-09-16 10:39 ` [Qemu-devel] [PATCH 2/2] numa/pc-dimm: Fix stat of memory size in node when hotplug memory zhanghailiang
2014-09-16 11:20 ` Igor Mammedov
2014-09-17 8:22 ` zhanghailiang
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