On Fri, Jan 15, 2010 at 11:33:27AM +0100, Peter Zijlstra wrote: > On Fri, 2010-01-15 at 15:56 +0530, Srikar Dronamraju wrote: > > Hi Peter, > > > > Or there could be two threads that could be racing to > > insert/delete a breakpoint. These synchronization issues are all handled > > by the Uprobes layer. > > Shouldn't be hard to put that in the ubp layer, right? > > > 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, >
I think similar hooks were given thumbs down in the previous incarnation of uprobes (which was implemented without utrace). http://lkml.indiana.edu/hypermail/linux/kernel/0603.2/1254.html Thanks Maneesh -- Maneesh Soni Linux Technology Center IBM India Systems and Technology Lab, Bangalore, India.
