Hello, Agustina Arzille, on Tue 29 Mar 2016 22:37:27 -0300, wrote: > As for Linux, they too use a global hash table, but its size is determined > by the number of CPUs (The actual size is 256 * NCPUS).
Ok. Doing the same is probably a good start. > For shared gsync objects, I'm using vm_map_lookup to find out the > vm object and offset. The problem is that said function expects the map > to be unlocked Really? It starts with locking it, and finishes with unlocking it, and the lock is recursive, so it's fine to take it several times. > A simple workaround is > to do valid_access_p *again* after vm_map_lookup returns (It should be > faster since the vm hint should be set by then). But there's still room between that call and the dereference. We really need to have the map locked between the access check and the actual dereference. > >Thanks for your work! > > > >BTW, how is your copyright assignment going? > > Slow. I sent the letter about 20 days ago, still no answer. Don't hesitate to ping the people at FSF from times to times, to make sure it's not stuck somewhere. Samuel
