Internal Processing Errors (IPEs) are unrecoveralble error conditions detected by the system while running in ring 0. The may arise from inconsistencies detected by the OS/2 Kernel or from traps occuring in any ring 0 code (Kernel, Installable File System Drivers and Device Drivers).

When the system detects an IPE it enters a routine called panic where an error message is formatted and displayed and the system is halted.

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