Date: Wed, 5 Apr 2023 18:21:36 -0300 From: Jonas Lopes <jonasbsd@gmail.com> To: freebsd-current@freebsd.org Subject: Lost connection using bhyve + netmap/VALE Message-ID: <CAFuq9EyQd0m6kzRrjvqhpydCOVanMTqo1-OO2A9W2KVLoHLc7g@mail.gmail.com>
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[-- Attachment #1 --] Hello everybody. I had a lot of problems with the vm-bhyve NAT network on 14-CURRENT. That's why I looked for alternatives and took the opportunity to study Netgraph, netmap/VALE with bhyve(8). However, I think I found other bugs. When I virtualize Windows using bhyve with TAP, the system works perfectly. bhyve -c 2 -m 4G -w -H \ > -s 0, hostbridge \ > -s 2,nvme,/vm/windows/disk0.img \ > -s 5,virtio-net,tap0 \ > -s 29,fbuf,tcp=0.0.0.0:5900,w=1280,h=720,no \ > -s 30,xhci,tablet \ > -s 31,lpc -l com1,stdio \ > -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \ > Windows > But when I virtualize Windows using bhyve with netmap/VALE, at some point the laptop loses connectivity. I am completely without a network. Within VALE connectivity continues, but everything else loses connectivity. Including the internet. -s 5,virtio-net,vale0:windows \ If I restart wlan0's network service, the computer freezes. If I delete the VALE connection with wlan0, after the PC loses connectivity, it crashes too. In a moment I follow the steps below: - 1. After some time away from the PC, there is a disconnection with the > WiFi network. It looks like it's connected, but it doesn't work; > > - 2. I enter the command: service netif restart wlan0 > > - 3. The network works again; > > - 4. When I delete a VALE network that was connected to wlan0 before > disconnecting the network, FreeBSD freezes; > I've tested it several times, and the same thing happens. FreeBSD version: % uname -a > FreeBSD mithrandir 14.0-CURRENT FreeBSD 14.0-CURRENT #5 > main-n261959-cfccc7f30a01: Mon Apr 3 07:57:49 -03 2023 root@mithrandir:/usr/obj/usr/src/amd64.amd64/sys/GENERIC > amd64 > Some details: - I don't have another network card. I'm on Ideapad s145. It does not have a cable network card. - In a moment it crashes completely. In another it freezes, but I notice that the keyboard is still working. I go to another tty even without an image, I enter with the root user and reboot. It works! - I tested it with a USB/Network and so far it only crashed 1 time. Unlike WiFi, which freezes a few minutes (sometimes hours) after creating the VALE connections with the virtual machine. -- Jonas Lopes <jonasbsd gmail.com> [-- Attachment #2 --] <div dir="ltr">Hello everybody.<br><br>I had a lot of problems with the vm-bhyve NAT network on 14-CURRENT. That's why I looked for alternatives and took the opportunity to study Netgraph, netmap/VALE with bhyve(8).<br><br>However, I think I found other bugs. When I virtualize Windows using bhyve with TAP, the system works perfectly.<br><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">bhyve -c 2 -m 4G -w -H \<br>-s 0, hostbridge \<br>-s 2,nvme,/vm/windows/disk0.img \<br>-s 5,virtio-net,tap0 \<br>-s 29,fbuf,tcp=<a href="http://0.0.0.0:5900" target="_blank">0.0.0.0:5900</a>,w=1280,h=720,no \<br>-s 30,xhci,tablet \<br>-s 31,lpc -l com1,stdio \<br>-l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \<br>Windows<br></blockquote><br>But when I virtualize Windows using bhyve with netmap/VALE, at some point the laptop loses connectivity. I am completely without a network. Within VALE connectivity continues, but everything else loses connectivity. Including the internet.<br clear="all"><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">-s 5,virtio-net,vale0:windows \</blockquote><div><br></div><div>If I restart wlan0's network service, the computer freezes. If I delete the VALE connection with wlan0, after the PC loses connectivity, it crashes too.</div><div><br></div><div>In a moment I follow the steps below:<br><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">- 1. After some time away from the PC, there is a disconnection with the WiFi network. It looks like it's connected, but it doesn't work;<br><br>- 2. I enter the command: service netif restart wlan0<br><br>- 3. The network works again;<br><br>- 4. When I delete a VALE network that was connected to wlan0 before disconnecting the network, FreeBSD freezes;<br></blockquote></div><div><br></div><div>I've tested it several times, and the same thing happens.</div><div><br></div><div>FreeBSD version:</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>% uname -a<br>FreeBSD mithrandir 14.0-CURRENT FreeBSD 14.0-CURRENT #5 main-n261959-cfccc7f30a01: Mon Apr 3 07:57:49 -03 2023 root@mithrandir:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64</div></blockquote><div><br></div><div>Some details:<br><br>- I don't have another network card. I'm on Ideapad s145. It does not have a cable network card.<br>- In a moment it crashes completely. In another it freezes, but I notice that the keyboard is still working. I go to another tty even without an image, I enter with the root user and reboot. It works!</div><div>- I tested it with a USB/Network and so far it only crashed 1 time. Unlike WiFi, which freezes a few minutes (sometimes hours) after creating the VALE connections with the virtual machine.</div><div><br></div><span>-- </span><br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div>Jonas Lopes <jonasbsd <a href="http://gmail.com" target="_blank">gmail.com</a>></div></div></div></div>help
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