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On the x86 computer architecture, a triple fault is a special kind of exception generated by the CPU when an exception occurs while the CPU is trying to invoke the double fault exception handler, which itself handles exceptions occurring while trying to invoke a regular exception handler.
This allowed the BIOS to restore the CPU to a similar state and begin executing code before the reset. [clarification needed] Later, a triple fault was used to reset the 286 CPU, which was a lot faster and cleaner than the keyboard controller method (and does not depend on IBM AT-compatible hardware, but will work on any 80286 CPU in any system).
In a PC, the BIOS, pre-loaded in ROM on the motherboard, takes control immediately after the CPU is reset, including during power-up, when a hardware reset button is pressed, or when a critical software failure (a triple fault) causes the mainboard circuitry to automatically trigger a hardware reset.
The IBM PC AT, the first PC-compatible system to contain an 80286, has hardware that detects the Shutdown state and automatically resets the CPU when it occurs. All descendants of the PC AT do the same, so in a PC, a triple fault causes an immediate system reset.
Intel Pentium processor. The Pentium F00F bug is a design flaw in the majority of Intel Pentium, Pentium MMX, and Pentium OverDrive processors (all in the P5 microarchitecture). Discovered in 1997, it can result in the processor ceasing to function until the computer is physically rebooted. The bug has been circumvented through operating system ...
The Las Vegas Raiders continued their housecleaning Thursday, firing general manager Tom Telesco just two days after dismissing coach Antonio Pierce. The moves took place after the Raiders went 4 ...
A 386 CPU can be put back into real mode by clearing a bit in the CR0 control register, however this is a privileged operation in order to enforce security and robustness. By way of comparison, a 286 could only be returned to real mode by forcing a processor reset, e.g. by a triple fault or using external hardware.
The juror in the minority argued that the doctor was at fault for prescribing an off-label drug, the forewoman recalls. That afternoon, they debated how much Johnson & Johnson should pay Austin’s family. Some wanted to award as much as $5 million; others favored a far lower sum, even below a half million dollars.