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docs(workarounds): clarify removal and recovery conditions

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Ryan Yin committed 2026-10-03 13:12:31 +08:00
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WORKAROUNDS.md
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@@ -18,7 +18,7 @@ A version or revision pinned for a reason that can go away.
| ID | What & where | Why | Removal condition | Added | Revisit | Status | | ID | What & where | Why | Removal condition | Added | Revisit | Status |
| ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | ---------- | ---------------------- | ------ | | ------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------- | ---------- | ---------------------- | ------ |
| WA-001 | smartctl_exporter pinned to upstream `6274decc`, which carries PR [#329](https://github.com/prometheus-community/smartctl_exporter/pull/329) — `overlays/smartctl-exporter/` | `/metrics` returns HTTP 500 once a device becomes readable after startup ([#305](https://github.com/prometheus-community/smartctl_exporter/issues/305), [#326](https://github.com/prometheus-community/smartctl_exporter/issues/326)) | Drop once smartctl_exporter **0.15.0** is released and packaged in nixpkgs | 2026-10-03 | next nixpkgs bump | active | | WA-001 | smartctl_exporter pinned to upstream `6274decc`, which carries PR [#329](https://github.com/prometheus-community/smartctl_exporter/pull/329) — `overlays/smartctl-exporter/` | `/metrics` returns HTTP 500 once a device becomes readable after startup ([#305](https://github.com/prometheus-community/smartctl_exporter/issues/305), [#326](https://github.com/prometheus-community/smartctl_exporter/issues/326)) | Drop once nixpkgs provides a version containing the #329 fix | 2026-10-03 | next nixpkgs bump | active |
| WA-002 | `nixpkgs-2505` — `flake.nix`; consumer `home/base/tui/container.nix` | `kubernetes-helm` regressed in newer nixpkgs | Drop the input and its consumer once helm works again in current nixpkgs | 2025-12-03 | when helm is revisited | active | | WA-002 | `nixpkgs-2505` — `flake.nix`; consumer `home/base/tui/container.nix` | `kubernetes-helm` regressed in newer nixpkgs | Drop the input and its consumer once helm works again in current nixpkgs | 2025-12-03 | when helm is revisited | active |
| WA-003 | `rust-overlay` follow — `flake.nix` | lanzaboote v1.1.0's pinned rust-overlay uses the deprecated `stdenv.isLinux`/`stdenv.isDarwin` | Drop the follow once lanzaboote updates its pin (or we drop the lanzaboote pin) | 2026-09-25 | on lanzaboote bump | active | | WA-003 | `rust-overlay` follow — `flake.nix` | lanzaboote v1.1.0's pinned rust-overlay uses the deprecated `stdenv.isLinux`/`stdenv.isDarwin` | Drop the follow once lanzaboote updates its pin (or we drop the lanzaboote pin) | 2026-09-25 | on lanzaboote bump | active |
| WA-004 | `catppuccin` on `main` — `flake.nix` | `main` carries the nodejs→nodejs-slim deprecation fix, which is not in a release | Switch to a release tag once it includes the fix | 2026-09-25 | on catppuccin release | active | | WA-004 | `catppuccin` on `main` — `flake.nix` | `main` carries the nodejs→nodejs-slim deprecation fix, which is not in a release | Switch to a release tag once it includes the fix | 2026-09-25 | on catppuccin release | active |
@@ -30,12 +30,16 @@ A version or revision pinned for a reason that can go away.
A setting that works around a bug or a hardware quirk. A setting that works around a bug or a hardware quirk.
| ID | What & where | Why | Removal condition | Added | Revisit | Status | | ID | What & where | Why | Removal condition | Added | Revisit | Status |
| ------ | ------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | ------------------------------------------- | ------ | | ------ | ------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- | ---------- | ------------------------------------------- | ------ |
| WA-008 | Relaxed NVMe APST (`nvme_core.default_ps_max_latency_us=100000`) — `hosts/idols-ai/hardware-configuration.nix` | the KINGBANK KP260 (DRAM-less QLC) froze on slow APST wake-ups | Keep relaxed while kernel logs stay clean; restore `nvme_core.default_ps_max_latency_us=0 nvme_core.io_timeout=4294967295 pcie_aspm=off` if freezes return | 2026-10-03 | watch NVMe timeout/reset/AER in the journal | active | | WA-008 | Relaxed NVMe APST (`nvme_core.default_ps_max_latency_us=100000`) — `hosts/idols-ai/hardware-configuration.nix` | the KINGBANK KP260 (DRAM-less QLC) froze on slow APST wake-ups | Drop the override once kernel/firmware fixes or replacement hardware make default APST reliable | 2026-10-03 | watch NVMe timeout/reset/AER in the journal | active |
| WA-009 | USB-SATA bridge mitigations (`usbcore.autosuspend=-1`, `usb-storage.delay_use=10`) — `hosts/12kingdoms-youko/default.nix` | flaky JMicron JMS567 resets with UDMA-CRC and I/O errors | Drop once the bridge/controller is replaced; the signal is smartctl CRC/media errors | 2026-09-21 | on hardware change or CRC errors | active | | WA-009 | USB-SATA bridge mitigations (`usbcore.autosuspend=-1`, `usb-storage.delay_use=10`) — `hosts/12kingdoms-youko/default.nix` | flaky JMicron JMS567 resets with UDMA-CRC and I/O errors | Drop once the bridge/controller is replaced; the signal is smartctl CRC/media errors | 2026-09-21 | on hardware change or CRC errors | active |
| WA-010 | Insta360 Link USB reset on S3 resume — `hosts/idols-ai/default.nix` | the camera stays enumerated with a stalled UVC endpoint after resume | Drop after the Insta360 firmware or the kernel `uvcvideo` fixes it | 2026-08-01 | on kernel or firmware change | active | | WA-010 | Insta360 Link USB reset on S3 resume — `hosts/idols-ai/default.nix` | the camera stays enumerated with a stalled UVC endpoint after resume | Drop after the Insta360 firmware or the kernel `uvcvideo` fixes it | 2026-08-01 | on kernel or firmware change | active |
| WA-011 | Kernel module blacklist (`esp4`, `esp6`, `rxrpc`) — `modules/nixos/base/kernel-hardening.nix` | attack surface for the Dirty Frag LPE (CVE-2026-43284 / CVE-2026-43500) | Kept as defence in depth; drop only if something needs those modules | 2026-10-03 | rarely | active | | WA-011 | Kernel module blacklist (`esp4`, `esp6`, `rxrpc`) — `modules/nixos/base/kernel-hardening.nix` | attack surface for the Dirty Frag LPE (CVE-2026-43284 / CVE-2026-43500) | Kept as defence in depth; drop only if something needs those modules | 2026-10-03 | rarely | active |
If WA-008 freezes recur, the fallback is to restore
`nvme_core.default_ps_max_latency_us=0 nvme_core.io_timeout=4294967295 pcie_aspm=off`; this is a
recovery procedure, not its removal condition.
## Known issues ## Known issues
overlays/README.md
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@@ -58,5 +58,5 @@ This overlay provides:
- `computer-use-linux.nix`: packages `pkgs/computer-use-linux`. - `computer-use-linux.nix`: packages `pkgs/computer-use-linux`.
- `cua-driver.nix`: packages `pkgs/cua-driver` (used by the computer-use VMs). - `cua-driver.nix`: packages `pkgs/cua-driver` (used by the computer-use VMs).
- `smartctl-exporter/`: pins `prometheus-smartctl-exporter` to the upstream commit carrying PR - `smartctl-exporter/`: pins `prometheus-smartctl-exporter` to the upstream commit carrying PR
[#329](https://github.com/prometheus-community/smartctl_exporter/pull/329) until smartctl_exporter [#329](https://github.com/prometheus-community/smartctl_exporter/pull/329) until nixpkgs provides
0.15.0 is released; see `overlays/smartctl-exporter/default.nix`. a version containing the fix; see `overlays/smartctl-exporter/default.nix`.
overlays/smartctl-exporter/default.nix
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@@ -6,8 +6,8 @@
# #
# Pin the package to the upstream commit that carries the fix (PR #329, merged # Pin the package to the upstream commit that carries the fix (PR #329, merged
# 2026-09-28, then included in the "Update Go (#391)" commit below) instead of # 2026-09-28, then included in the "Update Go (#391)" commit below) instead of
# backporting it as a patch. Drop this overlay once smartctl_exporter 0.15.0 is # backporting it as a patch. Drop this overlay once nixpkgs provides a version
# released and packaged in nixpkgs: # containing the #329 fix:
# https://github.com/prometheus-community/smartctl_exporter/pull/329 # https://github.com/prometheus-community/smartctl_exporter/pull/329
_: _final: prev: { _: _final: prev: {
prometheus-smartctl-exporter = prev.prometheus-smartctl-exporter.overrideAttrs (_prev: { prometheus-smartctl-exporter = prev.prometheus-smartctl-exporter.overrideAttrs (_prev: {