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Wed, 02 Jun 2021 00:15:00 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxufrPCd7Pf/XaCWAaBdiVWeER94rYldeUimhvZhIrvYw6A2cPFCPX7XVd/UFcPhoryLQJVig== X-Received: by 2002:a63:1703:: with SMTP id x3mr15032563pgl.421.1622618100025; Wed, 02 Jun 2021 00:15:00 -0700 (PDT) Received: from wangxiaodeMacBook-Air.local ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id c134sm15028445pfb.135.2021.06.02.00.14.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Jun 2021 00:14:59 -0700 (PDT) Subject: Re: [PATCH] virtio_net: Remove BUG() to aviod machine dead To: Leon Romanovsky References: <20210518055336-mutt-send-email-mst@kernel.org> <4aaf5125-ce75-c72a-4b4a-11c91cb85a72@linux.alibaba.com> <72f284c6-b2f5-a395-a68f-afe801eb81be@redhat.com> From: Jason Wang Message-ID: Date: Wed, 2 Jun 2021 15:14:50 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.10.2 MIME-Version: 1.0 In-Reply-To: Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Cc: "Michael S. Tsirkin" , Xianting Tian , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, kuba@kernel.org, davem@davemloft.net X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" CuWcqCAyMDIxLzYvMiDkuIvljYgxOjU5LCBMZW9uIFJvbWFub3Zza3kg5YaZ6YGTOgo+IE9uIFR1 ZSwgTWF5IDI1LCAyMDIxIGF0IDAyOjE5OjAzUE0gKzA4MDAsIEphc29uIFdhbmcgd3JvdGU6Cj4+ IOWcqCAyMDIxLzUvMTkg5LiL5Y2IMTA6MTgsIFhpYW50aW5nIFRpYW4g5YaZ6YGTOgo+Pj4gdGhh bmtzLCBJIHN1Ym1pdCB0aGUgcGF0Y2ggYXMgY29tbWVudGVkIGJ5IEFuZHJldwo+Pj4gaHR0cHM6 Ly9sa21sLm9yZy9sa21sLzIwMjEvNS8xOC8yNTYKPj4+Cj4+PiBBY3R1YWxseSwgaWYgeG1pdF9z a2IoKSByZXR1cm5zIGVycm9yLCBiZWxvdyBjb2RlIHdpbGwgZ2l2ZSBhIHdhcm5pbmcKPj4+IHdp dGggZXJyb3IgY29kZS4KPj4+Cj4+PiAgwqDCoMKgwqAvKiBUcnkgdG8gdHJhbnNtaXQgKi8KPj4+ ICDCoMKgwqDCoGVyciA9IHhtaXRfc2tiKHNxLCBza2IpOwo+Pj4KPj4+ICDCoMKgwqDCoC8qIFRo aXMgc2hvdWxkIG5vdCBoYXBwZW4hICovCj4+PiAgwqDCoMKgwqBpZiAodW5saWtlbHkoZXJyKSkg ewo+Pj4gIMKgwqDCoMKgwqDCoMKgIGRldi0+c3RhdHMudHhfZmlmb19lcnJvcnMrKzsKPj4+ICDC oMKgwqDCoMKgwqDCoCBpZiAobmV0X3JhdGVsaW1pdCgpKQo+Pj4gIMKgwqDCoMKgwqDCoMKgwqDC oMKgwqAgZGV2X3dhcm4oJmRldi0+ZGV2LAo+Pj4gIMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgICJVbmV4cGVjdGVkIFRYUSAoJWQpIHF1ZXVlIGZhaWx1cmU6ICVkXG4iLAo+Pj4gIMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHFudW0sIGVycik7Cj4+PiAgwqDCoMKgwqDC oMKgwqAgZGV2LT5zdGF0cy50eF9kcm9wcGVkKys7Cj4+PiAgwqDCoMKgwqDCoMKgwqAgZGV2X2tm cmVlX3NrYl9hbnkoc2tiKTsKPj4+ICDCoMKgwqDCoMKgwqDCoCByZXR1cm4gTkVUREVWX1RYX09L Owo+Pj4gIMKgwqDCoMKgfQo+Pj4KPj4+Cj4+Pgo+Pj4KPj4+Cj4+PiDlnKggMjAyMS81LzE4IOS4 i+WNiDU6NTQsIE1pY2hhZWwgUy4gVHNpcmtpbiDlhpnpgZM6Cj4+Pj4gdHlwbyBpbiBzdWJqZWN0 Cj4+Pj4KPj4+PiBPbiBUdWUsIE1heSAxOCwgMjAyMSBhdCAwNTo0Njo1NlBNICswODAwLCBYaWFu dGluZyBUaWFuIHdyb3RlOgo+Pj4+PiBXaGVuIG1ldCBlcnJvciwgd2Ugb3V0cHV0IGEgcHJpbnQg dG8gYXZvaWQgYSBCVUcoKS4KPj4KPj4gU28geW91IGRvbid0IGV4cGxhaW4gd2h5IHlvdSBuZWVk IHRvIHJlbW92ZSBCVUcoKS4gSSB0aGluayBpdCBkZXNlcnZlIGEKPj4gQlVHKCkuCj4gQlVHKCkg d2lsbCBjcmFzaCB0aGUgbWFjaGluZSBhbmQgdmlydGlvX25ldCBpcyBub3Qga2VybmVsIGNvcmUK PiBmdW5jdGlvbmFsaXR5IHRoYXQgbXVzdCBzdG9wIHRoZSBtYWNoaW5lIHRvIHByZXZlbnQgYW55 dGhpbmcgdHJ1bHkKPiBoYXJtZnVsIGFuZCBiYXNpYy4KCgpOb3RlIHRoYXQgdGhlIEJVRygpIGhl cmUgaXMgbm90IGZvciB2aXJ0aW8tbmV0IGl0c2VsZi4gSXQgdGVsbHMgdXMgdGhhdCAKYSBidWcg d2FzIGZvdW5kIGJ5IHZpcnRpby1uZXQuCgpUaGF0IGlzLCB0aGUgb25lIHRoYXQgcHJvZHVjZXMg dGhlIHNrYiBoYXMgYSBidWcsIHVzdWFsbHkgaXQncyB0aGUgCm5ldHdvcmsgY29yZS4KClRoZXJl IGNvdWxkIGFsc28gYmUgdGhlIGlzc3VlIG9mIHRoZSBwYWNrZXQgZnJvbSB1bnRydXN0ZWQgc291 cmNlIAoodXNlcnNwYWNlIGxpa2UgVEFQIG9yIHBhY2tldCBzb2NrZXQpIGJ1dCB0aGV5IHNob3Vs ZCBiZSB2YWxpZGF0ZWQgdGhlcmUuCgpUaGFua3MKCgo+Cj4gSSB3b3VsZCBhcmd1ZSB0aGF0IGNv ZGUgaW4gZHJpdmVycy8qIHNob3VsZG4ndCBjYWxsIEJVRygpIG1hY3JvcyBhdCBhbGwuCj4KPiBJ ZiBpdCBpcyBpbXBvc3NpYmxlLCBkb24ndCBjaGVjayBmb3IgdGhhdCBvciBhZGQgV0FSTl9PTigp IGFuZCByZWNvdmVyLAo+IGJ1dCBkb24ndCBjcmFzaCB3aG9sZSBzeXN0ZW0uCj4KPiBUaGFua3MK PgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KVmlydHVh bGl6YXRpb24gbWFpbGluZyBsaXN0ClZpcnR1YWxpemF0aW9uQGxpc3RzLmxpbnV4LWZvdW5kYXRp b24ub3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZv L3ZpcnR1YWxpemF0aW9u