# Kernel night 9→10 October 2026 — read-back (2026-10-10, read only)

| | demo-hp | demo-felhom |
|---|---|---|
| Told (hub `os_kernel_notice`; household mail) | 7.0.14-22-pve, mail 3 of 3, 2026-10-09 08:39Z | 7.0.14-23-pve, mail 1, 2026-10-09 07:00Z (mail in the inbox 07:00:29Z) |
| Staged (agent + hub `os_kernel_step`) | 02:42:15Z | 02:44:26Z |
| Restart started (agent WARN) | 02:42:20Z | 02:44:30Z |
| Judged healthy, default now (agent; hub event) | 7.0.14-22-pve, 1 m 59 s after the agent started (02:47:10Z) | 7.0.14-23-pve, 39 s after (02:46:03Z) |
| Running (`uname -r`, 05:28Z) | 7.0.14-22-pve | 7.0.14-23-pve |
| Default after (grub.cfg `set default`, `/etc/default/grub.d/zz-felhom-kernel-default.cfg`) | 7.0.14-22-pve | 7.0.14-23-pve |
| Apps down for the restart | ~3 min 28 s: 02:42:20Z → last app 02:45:48Z (Docker StartedAt); metrics gap 02:42:17–02:45:37Z, all 21 back 02:46:35Z | ~65 s: 02:44:30Z → opengist 02:45:35Z (Docker StartedAt); metrics: one sample missing (02:44:41) |
| Other stops that night | local backup tier 02:31Z, 6 app containers for under ~1 min (metrics 21→15→21); 00:30Z 3 containers ~1 min; 02:15Z 1 container ~1 min | none seen (5 containers every sample) |
| False alarm | none (hub: no error/warning/backup-missed event since 2026-10-09 10:00Z; inbox: no demo-box alarm; the positive control: Tester 2's expected 05:00 mails arrived) | none (same two channels; last night's „backup missed" did not return) |

**„Approve kernel set": NOT shown.** The System page's kernel candidate reads „the ring-0 boxes booted different kernels
(7.0.14-23-pve, 7.0.14-22-pve)" — no `/os/approve-kernel` form on the page (template `system.html:77`). demo-hp is due
7.0.14-23-pve, „not told yet (mails 09–20 h)".

Noted, not a fault: demo-hp `dd invoked oom-killer` at 02:39:28Z is the planned post-Docker-update memory probe
(`os-apply: OOM-CHECK result=pass`). A stale `saved_entry=…7.0.14-20-pve` in demo-hp's grubenv is not read (the
grub.cfg default is a fixed entry, not `saved`).

Channels: host journals (`*-night.txt`, trimmed of the 20-second reconcile line and kernel noise), `uname`/grub
(`*-night.txt` head), Docker StartedAt (`*-apps.txt`), the controller's metrics.db (`*-metrics.txt`), the hub DB (copy
with -wal/-shm, read, shredded — `hub-events.txt`), the hub System page (kernel lines only — `hub-system-page-kernel.txt`),
the Gmail inbox.