Debugging the BPF Virtual Machine Lorenzo Fontana October 28, 2020 ● Debugging is useful to understand how things work ● Sometimes, eBPF programs can’t even load ● I couldn’t find good resources on this this, so, here I am ● I break lots of eBPF programs ● The BPF Virtual machine is not easy to understand Why ? The BPF subsystem lives in the kernel AND The kernel can be debugged using gdb The

administration tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1.6 Virtual consoles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.3.8 Virtual filesystem of MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 1.6.5 Extracting data from text file table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 1.6.6 Script snippets

erguide/trunk/changes 6 https://bazaar.launchpad.net/~ubuntu-core-doc/ubuntu-docs/trunk/changes Table of Contents 1. Introduction .................................................................... installer is still available if these restrictions mean you can't use the live server installer. The table below lists recommended hardware specifications. Depending on your needs, you might manage with less less than this. However, most users risk being frustrated if they ignore these suggestions. Table 2.1. Recommended Minimum Requirements Hard Drive Space Install Type Install Method CPU RAM Base System

install/netboot-arm64 arm64 netboot install 3 install/netboot-ppc64el ppc64el netboot install 3 install/ppc64el Virtual CDROM and Petitboot on ppc64el 1 Level Path Navlink 3 install/s390x-zvm s390x install via z/VM Security tips 3 wireguard-vpn-troubleshooting Troubleshooting 2 Virtualisation and containers 3 Virtual machines 4 virtualization-qemu QEMU 4 virtualization-multipass Multipass 4 virtualization-uvt UVtool Path Navlink 3 troubleshooting-tls-ssl Troubleshooting TLS/SSL 2 Virtualisation and containers 3 Virtual machines 4 vm-tools-in-the-ubuntu-space VM tools overview 4 using-qemu-for-microvms QEMU for microVMs

IPC/DEBIAN10-81A-64 from Windows 13 8.3 Exchange files with SCP 13 8.4 Remote shell with SSH 13 9 Virtual host 14 9.1 Installation 14 9.2 USB performance 14 9.3 Shared folders 14 User 16 Step 5: Finishing 16 10.4 How to install the Debian 10 image on a flash memory using the Virtual Machine 16 Step1: Prepare the VM and the files 16 Step 2: Activate the Card Reader 16 Step IPC/M8xxx-xxxx IPC/RSL8xxx-xxxx TFT/Hx150PU8xxx-xxxxx TFT/Hx121PU8xxx-xxxxx TFT/Hx104PU8xxx-xxxxx Table 1 – Supported CPU boards Syslogic product(s) Description IPC/REL12-1Ax Relays board IPC/DIO32-1Ax

to ensure integrity and security during system running. Application and Service PaaS Physical Virtual Private Public NestOS Application and Service ... Server Cloud Edge Embedded Cloud Computing Configuration Protocol (NETCONF)/Yet Another Next Generation (YANG) Real-Time Features The following table shows the cyclictest results of GearOS on the FT-2000/4 and Kunpeng 920 hardware platforms. Platform Embedded 032 openEuler OS Technical White Paper Innovation Projects ZVM Zephyr SIG Zephyr-based Virtual Machine (ZVM) is an embedded real-time VM. Developed on the Zephyr RTOS and hardware-assisted virtualization

well-equipped to handle modern containerized workloads as well as more traditional workloads such as virtual machines and standard Linux processes. The development of modern datacenter applications has shifted hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts. Currently VXLAN and Geneve are baked in but all encapsulation formats connectivity between hosts which is typically already given. Native Routing: Use of the regular routing table of the Linux host. The network is required to be capable to route the IP addresses of the application

well-equipped to handle modern containerized workloads as well as more traditional workloads such as virtual machines and standard Linux processes. The development of modern datacenter applications has shifted hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts. Currently VXLAN and Geneve are baked in but all encapsulation formats connectivity between hosts which is typically already given. Native Routing: Use of the regular routing table of the Linux host. The network is required to be capable to route the IP addresses of the application

well-equipped to handle modern containerized workloads as well as more traditional workloads such as virtual machines and standard Linux processes. The development of modern datacenter applications has shifted hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts. Currently VXLAN and Geneve are baked in but all encapsulation formats connectivity between hosts which is typically already given. Native Routing: Use of the regular routing table of the Linux host. The network is required to be capable to route the IP addresses of the application

well-equipped to handle modern containerized workloads as well as more traditional workloads such as virtual machines and standard Linux processes. The development of modern datacenter applications has shifted hosts. The following multi node networking models are supported: Overlay: Encapsulation-based virtual network spanning all hosts. Currently VXLAN and Geneve are baked in but all encapsulation formats connectivity between hosts which is typically already given. Native Routing: Use of the regular routing table of the Linux host. The network is required to be capable to route the IP addresses of the application