!reload
Loads symbols for all drivers that have been loaded on the target system. This command is useful in the event of a system crash which may result in the loss of symbols for the target computer being debugged. To load the correct symbols, invoke KD with an explicit path to the kernel, for example:
i386kd c:\nt\oskrnl.exe
Then you can type
!reload
and the debugger will load the symbols for the drivers that the target system has already loaded.