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Kernel

Purpose​

Kernel — a snapshot of the host's kernel configuration: version, hostname, architecture, boot command line, loaded kernel modules, and sysctl parameters. This is static configuration, not live activity — for that, see Debug Tools or Event Stream.

Read-only. Modules table is capped at the first 100 matching rows after filter.

When to use it​

  • To confirm what kernel version, architecture, or boot parameters the host is running
  • To check whether a specific kernel module is loaded and what's using it
  • To look up the current value of a sysctl parameter without shelling in
  • Before enabling Network Fabric eBPF / dataplane features that depend on kernel capabilities
  • When filing a support report and you need kernel version + boot cmdline in one place

How to get there​

  • Route / id: /kernel
  • Nav: Monitoring → Kernel (sidebar, command palette, or desktop nav)
  • Console: http://127.0.0.1:<port>/kernel or https://<host>/kernel

Operate from the console (UX)​

  1. Summary tiles — Kernel Version, Hostname, Architecture, Modules Loaded count.
  2. Boot Command Line — shown verbatim in a code block when the backend reports one.
  3. Kernel Modules table — name, size, and "used by" for each loaded module (first 100 matches). Filter modules narrows by name live.
  4. Sysctl Parameters table — key/value pairs reported by the backend (no filter).
  5. Auto-refresh every 10 seconds; header refresh forces immediate reload.

Typical flow: confirm version/arch → search modules (e.g. networking/storage-related) → note relevant sysctls → continue live troubleshooting in Debug Tools or Processes. You cannot load modules or change sysctls here.

Empty / fail: Error banner, empty table, or failed toast — confirm you are signed in, zyvor-fabricd is healthy (/readyz on http://127.0.0.1:<port> or https://<host>), and any backend this page needs (FluxVM, storage, network) is reachable. See Admin basics.

Success: Live data loads without error; creates/updates appear in the list or detail view and any confirmation toast clears cleanly.