Petru Paler
4efc44e964
The modprobe.conf approach failed because the network interface doesn't exist when the module loads at boot. Now using a systemd service to configure netconsole via configfs after network-online. Also raise console_loglevel to 8 so all kernel messages (not just KERN_WARNING and above) are sent to netconsole. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
71 lines
2.5 KiB
Nix
71 lines
2.5 KiB
Nix
{ pkgs, inputs, config, ... }:
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{
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imports = [
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../../common/encrypted-btrfs-layout.nix
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../../common/global
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../../common/desktop-node.nix # Hyprland + GUI environment
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../../common/cluster-member.nix # Consul + storage clients
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../../common/cluster-tools.nix # Nomad CLI (no service)
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./hardware.nix
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];
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diskLayout = {
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mainDiskDevice = "/dev/disk/by-id/nvme-CT1000P3PSSD8_25164F81F31D";
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#keyDiskDevice = "/dev/disk/by-id/usb-Intenso_Micro_Line_22080777650797-0:0";
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keyDiskDevice = "/dev/sda";
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};
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networking.hostName = "beefy";
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networking.cluster.primaryInterface = "enp1s0";
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services.tailscaleAutoconnect.authkey = "tskey-auth-k79UsDTw2v11CNTRL-oYqji35BE9c7CqM89Dzs9cBF14PmqYsi";
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# Console blanking after 5 minutes (for greeter display sleep)
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# NMI watchdog for hardlockup detection
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boot.kernelParams = [ "consoleblank=300" "nmi_watchdog=1" ];
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# Netconsole - stream kernel messages to zippy (192.168.1.2)
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# Must configure via configfs after network is up (interface doesn't exist at module load)
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boot.kernelModules = [ "netconsole" ];
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boot.kernel.sysctl."kernel.printk" = "8 4 1 7"; # Raise console_loglevel to send all messages
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systemd.services.netconsole-sender = {
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description = "Configure netconsole to send kernel messages to zippy";
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wantedBy = [ "multi-user.target" ];
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after = [ "network-online.target" ];
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wants = [ "network-online.target" ];
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serviceConfig = {
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Type = "oneshot";
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RemainAfterExit = true;
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};
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script = ''
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mkdir -p /sys/kernel/config/netconsole/target1
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echo enp1s0 > /sys/kernel/config/netconsole/target1/dev_name
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echo 192.168.1.2 > /sys/kernel/config/netconsole/target1/remote_ip
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echo 6666 > /sys/kernel/config/netconsole/target1/remote_port
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echo c0:3f:d5:62:55:bb > /sys/kernel/config/netconsole/target1/remote_mac
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echo 1 > /sys/kernel/config/netconsole/target1/enabled
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'';
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};
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# Kdump for kernel crash analysis
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boot.crashDump = {
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enable = true;
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reservedMemory = "256M";
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};
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# Lockup detectors - panic on detection so kdump captures state
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boot.kernel.sysctl = {
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# Enable all SysRq functions for debugging hangs
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"kernel.sysrq" = 1;
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# Panic on soft lockup (CPU not scheduling for >20s)
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"kernel.softlockup_panic" = 1;
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# Panic on hung tasks (blocked >120s)
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"kernel.hung_task_panic" = 1;
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"kernel.hung_task_timeout_secs" = 120;
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};
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# Persist crash dumps
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environment.persistence.${config.custom.impermanence.persistPath}.directories = [
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"/var/crash"
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];
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}
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