Re: [patch 16/16] Add hardware breakpoint support for i386

[Andi Kleen]

Tom Rini <trini@xxxxxxxxxxxxxxxxxxx> writes:

> This adds hardware breakpoint support for i386.  This is not as well tested as
> software breakpoints, but in some minimal testing appears to be functional.

This really would need so coordination with user space using 
them. Otherwise it'll be quite unreliable because any user program
can break it.

Long ago (in 2.4 time frame) there used to be a IBM patch floating
around to reserve them globally and user space to use specific ones. I
guess something like that would be needed again.

-Andi

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