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fix(node-bootc): pstore backend becomes efi_pstore — ramoops cannot survive an hcloud reset #96

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pipeline-bot merged 1 commit from fix/pstore-efi-backend into trunk 2026-08-16 02:04:00 +00:00
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sean commented 2026-08-15 15:45:33 +00:00
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Crash-drill finding: panic->auto-reboot->rejoin proved in 62s, but ramoops records die with guest RAM on hcloud resets. UEFI is confirmed; dropping the ramoops kargs lets compiled-in efi_pstore take the backend (EFI varstore survives resets). One-line kargs change; rides the next kernel roll; the next drill proves capture.

Crash-drill finding: panic->auto-reboot->rejoin proved in 62s, but ramoops records die with guest RAM on hcloud resets. UEFI is confirmed; dropping the ramoops kargs lets compiled-in efi_pstore take the backend (EFI varstore survives resets). One-line kargs change; rides the next kernel roll; the next drill proves capture.
The seanfarm33 crash drill (2026-08-15, worker 55d23a): deliberate
sysrq-c, panic=30, node Ready again in 62 seconds — the
panic-and-self-heal posture works. The pstore half missed: ramoops
bound correctly and the region reserved, but hcloud/QEMU resets do not
preserve guest RAM, so the record died with the reboot.

These VMs boot UEFI. Dropping the ramoops kargs lets the compiled-in
efi_pstore register as the backend; the EFI varstore persists across
resets and power cycles. Proof rides the next roll's drill.
sean force-pushed fix/pstore-efi-backend from 7ed88c15b9
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pipeline/ci CI green @ 7ed88c15b9c8
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to 963c18a943
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pipeline/ci CI green @ 963c18a943fa
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2026-08-16 02:02:51 +00:00 Compare
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