Quoting Chris Wilson (2018-11-06 13:02:35) > Quoting Tvrtko Ursulin (2018-11-06 12:41:53) > > I am also worried about the lock dropping a few lines above. It's > > definitely correct to restart every time, but can we get in a situation > > where we never exit the loop? > > That would require a user with the mmap_sem for writing as we hold the > mmap_sem for reading, afaict.
Wrong thing. The answer is that we are not meant to insert overlapping objects with an on-going invalidate_range (between start/end), which we obviously violate. That the insert/invalidate is racy is a minor point in the grand scheme of fails. -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
