When encountering a kernel hang, panic, oops, or MCA (IA-64 only), remember that troubleshooting each condition involves key steps. In the event of an OS hang, you must decide whether it is an interruptible hang. After you determine this, you can proceed with troubleshooting. The goal with any hang, panic, oops, or MCA is to obtain a stack trace. This information is necessary early in the troubleshooting process to guide us to the source of the problem. Let us recap the key points of each type of scenario and the steps to troubleshooting them.
Although these are the key conditions and steps to remember, every troubleshooting process is unique and should be evaluated individually to determine the ideal troubleshooting path. Of course, before consuming vast resources troubleshooting a problem, confirm that you are running on the latest supported kernel and that all software/hardware combinations are in their vendor-supported configurations.