More hw_breakpoint scariness reduction

[Andy Lutomirski]

Would you all consider it acceptable to disallow watchpoints on per
cpu data entirely?  I can think of a *lot* of places where hitting #DB
when accessing per cpu data from entry asm would be bad.

Of course, actually implementing that might be less than entirely fun,
given that a cpu could be onlined after creating a watchpoint.

--Andy

-- 
Andy Lutomirski
AMA Capital Management, LLC
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/