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1. #REFLECTOR 2 TROUBLESHOOTING HOW TO#
2. #REFLECTOR 2 TROUBLESHOOTING DRIVER#
3. #REFLECTOR 2 TROUBLESHOOTING WINDOWS#

This is done from the calico/node pod that runs on every node (via a daemonset). This means every node peers to every other node to broadcast routes.

Once started, Calico runs a node-to-node mesh. Like many CNI plugins, you can apply it using kubectl. This method fosters a highly scalable networking model between our workloads.Ĭalico requires no additional routers or infrastructure to run. It leverages Border Gateway Protocol (BGP) for communicating routes available on nodes. Kubernetes Security and Observability SummitĬalico is a popular CNI plugin for Kubernetes.Application-Level Security and Observability.Full-Stack Observability powered by eBPF.Workload-based IDS/IPS, DDoS, DPI, and WAF.Multi-Cloud, Multi-cluster Networking, Security, Observability and Distros.Compare Products Open source, Cloud and Enterprise.Calico Enterprise Self-Managed Platform.

#REFLECTOR 2 TROUBLESHOOTING WINDOWS#

#REFLECTOR 2 TROUBLESHOOTING HOW TO#

See Using WPP Software Tracing in UMDF Drivers for information on how to set the LogMinidumpType registry value to specify the type of information stored in the minidump file. See Determining Why the Reflector Terminated the Host Process for information on finding user-mode dump files.

#REFLECTOR 2 TROUBLESHOOTING DRIVER#

In a kernel-mode debugging session, you can use the !wdfkd.wdflogdump extension command to display the Windows Driver Frameworks (WDF) In-flight Recorder (IFR) log records, if available. In a kernel-mode debugging session, you can use !wmitrace.logdump WudfTrace to display the trace log. Use !wdfkd.wdfdevicequeues to check the status of the driver's queues. Use !wdfkd.wdfumirps to look for pending IRPs. This command displays detailed power, power policy, and Plug and Play (PnP) state information. Use !wdfkd.wdfdriverinfo MyDriver.dll 0x10 to display the device tree in verbose form. In Windows 8.1, the reflector times out after one minute. cache forcedecodeuser and lmu to verify that your driver is hosted in the current process.Įxamine thread call stacks ( !thread Address) to determine if a driver callback timed out. process /r /p Process to switch process context to that of the Wudfhost process that is hosting your driver. You can then click on the process address to display information specific to that process. When you click on the image name of a UMDF driver, the debugger displays the address of the hosting process. You can also use !wdfkd.wdfumtriage and !wdfkd.wdfldr to display all drivers that are currently bound to WDF. Use !process 0 0x1f wudfhost.exe to list all Wudfhost.exe driver host processes, including thread stack information. Use !analyze to display information about the failure, and additional UMDF extension commands you can try. **** Note that driver host process may get terminated if you go past this break, making it difficult to debug the problem! **** Helpful UMDF debugger extension commands: !wdfkd.wdfhelp **** Dump UMDF trace log: !wmitrace.logdump WUDFTrace **** Dump UM Irps for this stack: !wdfkd.wdfumirps 0x000000BEBB49AE20 **** Dump UMDF driver image name and stack: !wdfkd.wdfumdevstack 0x000000BEBB49AE20 For example: **** Problem detected in UMDF driver "WUDFOsrUsbFx2". In the debugger output, you will see several suggestions on how to begin, including links you can click on. If HostFailKdDebugBreak is set (this should be enabled by default starting Windows 8), the reflector breaks into the kernel-mode debugger when the timeout threshold is exceeded. AppVerif –enable Heaps Exceptions Handles Locks Memory TLS Leak –for WudfHost.exe Use the following command, attach a kernel debugger and then reboot. We strongly recommend doing all development and testing of your UMDF driver with a kernel debugger attached to the test system and enabling Application Verifier (AppVerif.exe) on WUDFHost.exe.

To investigate, first set up a kernel-mode debugging session as described in How to Enable Debugging of a UMDF Driver. In this case, the reflector terminates the driver host process. If the driver host process is terminated, your driver might have a problem in a callback that results in the host timeout threshold being exceeded. Determining Why a UMDF 2.0 Driver Crashed This topic describes which commands you might start with to troubleshoot UMDF driver problems. Starting in User-Mode Driver Framework (UMDF) version 2, you can use a subset of the debugger extension commands implemented in Wdfkd.dll to debug a UMDF driver.