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Subject: Re: [virtio-dev] [PATCH v3 00/15] virtio-mem: paravirtualized memory
To:     teawater <teawaterz@linux.alibaba.com>
Cc:     LKML <linux-kernel@vger.kernel.org>, Linux MM <linux-mm@kvack.org>,
        virtio-dev@lists.oasis-open.org,
        Linux Virtualization <virtualization@lists.linux-foundation.org>,
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        Pavel Tatashin <pasha.tatashin@soleen.com>,
        Pavel Tatashin <pavel.tatashin@microsoft.com>,
        Pingfan Liu <kernelfans@gmail.com>, Qian Cai <cai@lca.pw>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Stefan Hajnoczi <stefanha@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Wei Yang <richard.weiyang@gmail.com>
References: <20200507103119.11219-1-david@redhat.com>
 <7848642F-6AA7-4B5E-AE0E-DB0857C94A93@linux.alibaba.com>
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From:   David Hildenbrand <david@redhat.com>
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Message-ID: <389b6bdc-b196-e4b9-b6be-dcac57524fdf@redhat.com>
Date:   Thu, 14 May 2020 12:12:10 +0200
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On 14.05.20 12:02, teawater wrote:
> 
> 
>> 2020年5月14日 16:48，David Hildenbrand <david@redhat.com> 写道：
>>
>> On 14.05.20 08:44, teawater wrote:
>>> Hi David,
>>>
>>> I got a kernel warning with v2 and v3.
>>
>> Hi Hui,
>>
>> thanks for playing with the latest versions. Surprisingly, I can
>> reproduce even by hotplugging a DIMM instead as well - that's good, so
>> it's not related to virtio-mem, lol. Seems to be some QEMU setup issue
>> with older machine types.
>>
>> Can you switch to a newer qemu machine version, especially
>> pc-i440fx-5.0? Both, hotplugging DIMMs and virtio-mem works for me with
>> that QEMU machine just fine.
> 
> I still could reproduce this issue with pc-i440fx-5.0 or pc.  Did I miss anything?
> 

Below I don't even see virtio_mem. I had to repair the image (filesystem
fsck) because it was broken, can you try that as well?

Also, it would be great if you could test with v4.

-- 
Thanks,

David / dhildenb