changes to check kernel errors using function call

lisa/node.py

@@ -24,7 +24,7 @@
 from lisa.nic import Nics, NicsBSD
 from lisa.operating_system import OperatingSystem
 from lisa.secret import add_secret
-from lisa.tools import Chmod, Df, Echo, Lsblk, Mkfs, Mount, Reboot, Uname, Wsl
+from lisa.tools import Chmod, Df, Dmesg, Echo, Lsblk, Mkfs, Mount, Reboot, Uname, Wsl
 from lisa.tools.mkfs import FileSystem
 from lisa.util import (
     ContextMixin,
@@ -110,6 +110,7 @@ def __init__(
         self._support_sudo: Optional[bool] = None
         self._is_dirty: bool = False
         self.capture_boot_time: bool = False
+        self.assert_kernel_error: bool = False
         self.capture_azure_information: bool = False
         self.capture_kernel_config: bool = False
         self.has_checked_bash_prompt: bool = False
@@ -501,6 +502,19 @@ def get_information(self) -> Dict[str, str]:
 
         return final_information
 
+    def exec_check_dmesg_oops(self) -> bool:
+        try:
+            dmesg = self.tools[Dmesg]
+            results = dmesg.check_kernel_errors(force_run=True, throw_error=False)
+            if results:
+                # If there are any results obtained from the Kernel Error Check, then return True
+                return True
+            else:
+                return False
+        except LisaException as ex:
+            self.log.error(f"Error: {ex}")
+            return True
+
     def expand_env_path(self, raw_path: str) -> str:
         echo = self.tools[Echo]
         result = echo.run(raw_path, shell=True)

lisa/platform_.py

@@ -195,6 +195,7 @@ def deploy_environment(self, environment: Environment) -> None:
                 node.features = Features(node, self)
             node.capture_azure_information = platform_runbook.capture_azure_information
             node.capture_boot_time = platform_runbook.capture_boot_time
+            node.assert_kernel_error = platform_runbook.assert_kernel_error
             node.capture_kernel_config = (
                 platform_runbook.capture_kernel_config_information
             )

lisa/schema.py

@@ -1444,6 +1444,8 @@ class Platform(TypedSchema, ExtendableSchemaMixin):
     capture_azure_information: bool = False
     # capture boot time info or not
     capture_boot_time: bool = False
+    # to check if dmesg logs need to be analyzed after each test case
+    assert_kernel_error: bool
     # capture kernel config info or not
     capture_kernel_config_information: bool = False
     capture_vm_information: bool = True

lisa/testsuite.py

@@ -857,10 +857,19 @@ def __run_case(
                 test_kwargs=test_kwargs,
             )
             case_result.set_status(TestStatus.PASSED, "")
+            if node.assert_kernel_error:
+                nodes = case_result.environment.nodes
+                for node in nodes.list():
+                    self.__node_kernel_error_check(node, log)
         except Exception as identifier:
             case_result.handle_exception(exception=identifier, log=log)
         log.debug(f"case end in {timer}")
 
+    def __node_kernel_error_check(self, node: schema.NodeSpace, log: Logger) -> None:
+        dmesg_check_result = node.exec_check_dmesg_oops()[0]
+        if dmesg_check_result:
+            raise LisaException(f"failed. Kernel Errors found in the DMesg logs after test case execution. Please check the same!")
+
 
 def get_suites_metadata() -> Dict[str, TestSuiteMetadata]:
     return _all_suites