| 21. | There is an option to break the CPU usage graph into two sections : kernel mode time and user mode time.
|
| 22. | Three of these are used to support the operating system and can be used when the microprocessor is in kernel mode.
|
| 23. | The signal handler could not be executed when the process was in kernel mode, with sensitive kernel data on the stack.
|
| 24. | If you're talking about BSODs, it's a similar situation but in kernel mode instead of user mode.
|
| 25. | This however also mandated that graphics and printer drivers had to run in kernel mode as well, resulting in potential stability issues.
|
| 26. | That's the main reason why the kernel mode-setting code was incorporated into DRM and not as a separate subsystem.
|
| 27. | However, due to performance issues of hardware of that age, it was decided to move the graphics subsystem into kernel mode.
|
| 28. | Many device drivers, and core parts of the operating system run in kernel mode, whereas user applications run in user mode.
|
| 29. | The trojan itself is fully executed in kernel mode and has been noted to employ rootkit technologies to prevent any form of detection.
|
| 30. | The kernel mode stops user mode services and applications from accessing critical areas of the operating system that they should not have access to.
|
