diff --git a/WORKAROUNDS.md b/WORKAROUNDS.md index c89f1a8d..41f01871 100644 --- a/WORKAROUNDS.md +++ b/WORKAROUNDS.md @@ -33,28 +33,35 @@ A version or revision pinned for a reason that can go away. A setting that works around a bug or a hardware quirk. -| 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 | 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-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`) — `hardening/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-017 | keyd right-hand modifier passthrough — `modules/nixos/desktop/peripherals.nix` | keyd folds right Ctrl/Shift/Meta into their left keys | Drop once keyd or fcitx5 keeps right-hand modifiers distinct | 2026-10-05 | on keyd bump | active | -| WA-018 | user-owned `~/.ssh/config` + disabled systemd ssh-proxy include — `home/base/tui/ssh.nix`, `modules/nixos/base/ssh.nix` | bwrap exposes root-owned store files as `nobody` | Drop once sandboxes preserve store ownership | 2026-10-06 | when sandbox layout changes | active | -| WA-019 | programs.steam.extraCompatPackages = [ pkgs.dwproton-bin pkgs.proton-ge-bin ] — modules/nixos/desktop/gaming.nix | ACE games fail on GE/mainline Proton, work with DW-Proton | Drop once mainline or GE-Proton runs these games (GE-Proton#433) | 2026-10-07 | on Proton/GE bump | active | +| 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 | 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-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`) — `hardening/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-017 | keyd right-hand modifier passthrough — `modules/nixos/desktop/peripherals.nix` | keyd folds right Ctrl/Shift/Meta into their left keys | Drop once keyd or fcitx5 keeps right-hand modifiers distinct | 2026-10-05 | on keyd bump | active | +| WA-018 | user-owned `~/.ssh/config` + disabled systemd ssh-proxy include — `home/base/tui/ssh.nix`, `modules/nixos/base/ssh.nix` | bwrap exposes root-owned store files as `nobody` | Drop once sandboxes preserve store ownership | 2026-10-06 | when sandbox layout changes | active | +| WA-019 | programs.steam.extraCompatPackages = [ pkgs.dwproton-bin pkgs.proton-ge-bin ] — modules/nixos/desktop/gaming.nix | ACE games fail on GE/mainline Proton, work with DW-Proton | Drop once mainline or GE-Proton runs these games (GE-Proton#433) | 2026-10-07 | on Proton/GE bump | active | +| WA-024 | Wi-Fi power saving disabled (`networking.networkmanager.wifi.powersave = false`) — `hosts/12kingdoms-shoukei/apple-silicon.nix` | On this BCM4378/brcmfmac laptop, powersave is a common source of intermittent ASSOC-REJECT / authentication-timeout failures; NetworkManager then mistakes the failure for a bad key, re-prompts, and the client (Noctalia, nmtui, nmcli) saves the answer as a duplicate ` 1` profile | Drop once the kernel carries the brcmfmac `port_authorized` fix (WA-025) and no association failures remain | 2026-10-07 | watch `journalctl -u wpa_supplicant` for ASSOC-REJECT / authentication timeout | 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. +If Wi-Fi wedges after a failed association, restart the stack instead of rebooting: +`sudo systemctl restart wpa_supplicant`, then `sudo systemctl restart NetworkManager`. Deleting an +_active_ NetworkManager profile wedges the supplicant as well; switch to another profile first, and +only delete inactive duplicates. + ## Known issues A known limitation with no fix yet. -| ID | What & where | Why | Removal condition | Added | Revisit | Status | -| ------ | ---------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------- | ---------- | -------------------------------------------------------------- | ------ | -| WA-016 | subscription rule snapshots — `modules/nixos/desktop/networking/mihomo/` (`rules_from:`) | mihomo's `proxy-providers` imports proxies only, so the `rules` and `proxy-groups` a subscription ships with are dropped by the core; the generator re-imports them from a local YAML copy that has to be refreshed by hand when the provider changes its routing policy | Drop the snapshots once mihomo can import rules from a proxy-provider, or the providers publish their rules as rule-providers | 2026-10-04 | when mihomo gains rule import | active | -| WA-022 | qemu-user binfmt removed — `hosts/12kingdoms-shoukei/hardware-configuration.nix` | the x86-on-arm module owns the x86 ELF handlers and this host does not need riscv64, but dropping `boot.binfmt.emulatedSystems` also drops `nix.settings.extra-platforms` and qemu-user, so `podman run --platform=linux/amd64`, x86 chroots and local builds of uncached x86 derivations need a remote x86_64 builder | Restore `boot.binfmt.emulatedSystems` (without x86_64/i686, which the module asserts against) if such a workload is needed | 2026-10-07 | when an amd64 container/chroot or uncached x86 build is needed | active | +| ID | What & where | Why | Removal condition | Added | Revisit | Status | +| ------ | ------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------- | ---------- | -------------------------------------------------------------- | ------ | +| WA-016 | subscription rule snapshots — `modules/nixos/desktop/networking/mihomo/` (`rules_from:`) | mihomo's `proxy-providers` imports proxies only, so the `rules` and `proxy-groups` a subscription ships with are dropped by the core; the generator re-imports them from a local YAML copy that has to be refreshed by hand when the provider changes its routing policy | Drop the snapshots once mihomo can import rules from a proxy-provider, or the providers publish their rules as rule-providers | 2026-10-04 | when mihomo gains rule import | active | +| WA-022 | qemu-user binfmt removed — `hosts/12kingdoms-shoukei/hardware-configuration.nix` | the x86-on-arm module owns the x86 ELF handlers and this host does not need riscv64, but dropping `boot.binfmt.emulatedSystems` also drops `nix.settings.extra-platforms` and qemu-user, so `podman run --platform=linux/amd64`, x86 chroots and local builds of uncached x86 derivations need a remote x86_64 builder | Restore `boot.binfmt.emulatedSystems` (without x86_64/i686, which the module asserts against) if such a workload is needed | 2026-10-07 | when an amd64 container/chroot or uncached x86 build is needed | active | +| WA-025 | brcmfmac 4-way-handshake offload authentication — upstream kernel/wpa_supplicant, no code in this repo | Since hostap commit 416386060, wpa_supplicant 2.11+ expects `NL80211_CMD_PORT_AUTHORIZED` from drivers that offload the 4-way handshake; brcmfmac never reports it, so authentication intermittently fails on Apple Silicon (BRCM4378/4387/4388). nixpkgs already carries the Broadcom revert in wpa_supplicant 2.12; the proper fix, Janne Grunau's `wifi: brcmfmac: cfg80211: Report port_authorized for 4-way HS offload` (2026-09), is still under review. Entering the key again after such a failure only creates a duplicate profile, so cancel and retry instead | Fix lands via a nixpkgs kernel update (or by carrying the patch through `nixpkgs-patched`) | 2026-10-07 | on every kernel bump | active | ## WIP diff --git a/hosts/12kingdoms-shoukei/apple-silicon.nix b/hosts/12kingdoms-shoukei/apple-silicon.nix index eed4a371..b07eec47 100644 --- a/hosts/12kingdoms-shoukei/apple-silicon.nix +++ b/hosts/12kingdoms-shoukei/apple-silicon.nix @@ -29,6 +29,12 @@ # configures the network interface(include wireless) via `nmcli` & `nmtui` networking.networkmanager.enable = true; + # BCM4378/brcmfmac: disable Wi-Fi power saving. Powersave is a common source + # of intermittent association failures / authentication timeouts, which NM + # mistakes for a bad key, re-prompts, and lets the client (Noctalia, nmtui, + # nmcli) save as a duplicate " 1" profile. See WORKAROUNDS.md WA-024/025. + networking.networkmanager.wifi.powersave = false; + # Specify path to peripheral firmware files. hardware.asahi = { enable = true;