[RFC] [PATCH 4/7] Uprobes Implementation

[Srikar Dronamraju]

* Peter Zijlstra <peterz at infradead.org> [2010-01-15 11:33:27]:

> 
> > Uprobes layer would need to be notified of process life-time events
> > like fork/clone/exec/exit. 
> 
> No so much the process lifetimes as the vma life times are interesting,
> placing a hook in the vm code to track that isn't too hard, 
> 
> > It also needs to know
> > 	-  when a breakpoint is hit
> > 	-  stop and resume a thread.
> 
> A simple hook in the trap code is done quickly enough, and no reason to
> stop the thread, its not going anywhere when it traps.
> 
> 

Some of the threads could be executing in the vicinity of the
breakpoint when it is getting inserted or deleted. Wont we need to
stop/quiesce those threads?