On Wed, 23 Apr 2008, Andrea Arcangeli wrote: > The only way to avoid failing because of vmalloc space shortage or > oom, would be to provide a O(N*N) fallback. But one that can't be > interrupted by sigkill! sigkill interruption was ok in #v12 because we > didn't rely on mmu_notifier_unregister to succeed. So it avoided any > DoS but it still can't provide any reliable unregister.
If unregister fails then the driver should not detach from the address space immediately but wait until -->release is called. That may be a possible solution. It will be rare that the unregister fails. _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
