fix: cpufreqd MSR spam, udev-shim PCI spam, scheme throttle, keymaps dir

- cpufreqd: suppress MSR errors after 1 failure (was 10)
- udev-shim: demote PCI scan failures from WARN to DEBUG
- accessibility/ime/keymapd: throttle EBADF loop with 100ms sleep
- config: create /etc/keymaps directory for keymapd

config/redbear-full.toml

@@ -229,6 +229,10 @@ args = ["-l", "info"]
 type = "oneshot_async"
 """
 
+[[files]]
+path = "/etc/keymaps/.gitkeep"
+data = ""
+
 [[files]]
 path = "/etc/init.d/13_redbear-keymapd.service"
 data = """

local/recipes/system/cpufreqd/source/src/main.rs

@@ -8,7 +8,7 @@ const IA32_PERF_CTL: u32 = 0x199;
 const POLL_MS: u64 = 100;
 const SAMPLE_WINDOW: usize = 10;
 const STATE_WRITE_INTERVAL_S: u64 = 1;
-const MSR_ERROR_SUPPRESS_COUNT: u32 = 10;
+const MSR_ERROR_SUPPRESS_COUNT: u32 = 1;
 const THERMAL_CACHE_MS: u64 = 1000;
 
 #[derive(Clone, Copy, PartialEq, Debug)]

local/recipes/system/redbear-accessibility/source/src/main.rs

@@ -1,6 +1,8 @@
 mod scheme;
 
 use std::io::Write;
+use std::thread;
+use std::time::Duration;
 
 use scheme::AccessibilityScheme;
 
@@ -23,8 +25,9 @@ fn main() {
                 break;
             }
             Err(e) => {
-                log_msg("ERROR", &format!("failed to read request: {}", e));
-                break;
+                log_msg("WARN", &format!("scheme read error (ignoring): {}", e));
+                thread::sleep(Duration::from_millis(100));
+                continue;
             }
         };
 

local/recipes/system/redbear-ime/source/src/main.rs

@@ -1,6 +1,8 @@
 mod scheme;
 
 use std::io::Write;
+use std::thread;
+use std::time::Duration;
 
 use scheme::ImeScheme;
 
@@ -23,8 +25,9 @@ fn main() {
                 break;
             }
             Err(e) => {
-                log_msg("ERROR", &format!("failed to read request: {}", e));
-                break;
+                log_msg("WARN", &format!("scheme read error (ignoring): {}", e));
+                thread::sleep(Duration::from_millis(100));
+                continue;
             }
         };
 

local/recipes/system/redbear-keymapd/source/src/main.rs

@@ -4,7 +4,8 @@ mod xkb;
 
 use std::env;
 use std::io::Write;
-use std::process;
+use std::thread;
+use std::time::Duration;
 
 use scheme::KeymapScheme;
 
@@ -40,8 +41,9 @@ fn main() {
                 break;
             }
             Err(e) => {
-                log_msg("ERROR", &format!("failed to read request: {}", e));
-                break;
+                log_msg("WARN", &format!("scheme read error (ignoring): {}", e));
+                thread::sleep(Duration::from_millis(100));
+                continue;
             }
         };
 

local/recipes/system/udev-shim/source/src/scheme.rs

@@ -100,7 +100,7 @@ impl UdevScheme {
                 }
             }
             Err(err) => {
-                log::warn!("udev-shim: failed to read /scheme/pci: {err}");
+                log::debug!("udev-shim: failed to read /scheme/pci: {err}");
             }
         }