[PATCH] klog: data.json: Add klog checking for errors from drivers/acpi/processor_idle.c

Colin King colin.king at canonical.com
Tue Jul 12 08:51:43 UTC 2016


From: Colin Ian King <colin.king at canonical.com>

Add more klog error message checking for the ACPI processor idle driver.

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 data/klog.json | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/data/klog.json b/data/klog.json
index c15c4cb..3dc4c86 100644
--- a/data/klog.json
+++ b/data/klog.json
@@ -2,6 +2,20 @@
  "firmware_error_warning_patterns":
  [ 
   {
+   "compare_mode": "regex",
+   "log_level": "LOG_LEVEL_HIGH",
+   "pattern": "detected - limiting to C.* max_cstate",
+   "advice": "The maximum C state has been limited by the ACPI processor idle driver because of a known bug on this platform, for instance, going to a deeper C state can hang the machine. This can be overridden using the kernel parameter processor.max_cstate to set to a deeper C state if required.",
+   "label": "KlogAcpiIdleMaxCStateLimited"
+  },
+  {
+   "compare_mode": "string",
+   "log_level": "LOG_LEVEL_HIGH",
+   "pattern": "ACPI: processor limited to max C-state",
+   "advice": "The maximum C state is less than the maxium allowed processor C states, so the CPU cannot go into a deep idle C state which means it is not optimally configured for power saving.",
+   "label": "KlogAcpiIdleMaxCStateLimited"
+  },
+  {
    "compare_mode": "string",
    "log_level": "LOG_LEVEL_MEDIUM",
    "pattern": "battery: (dis)charge rate invalid",
-- 
2.8.1




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