> > One task doing ptrace() can basically do whatever it wants with the > > task being traced. This is not an exact analogy to what fuse does, > > but close. > > Well, IMO userland tasks should not have power to grab VFS mutexes for > indefinite ammount of time. ("fused is allowed to deadlock kernel, in > a way only write to special file helps" is ugly). Unfortunately, I > don't think there's a way to work around that deadlock within fuse > design limits... (coda was able to get around it by working on whole > files granularity, AFAICT), so we'll have to live with that. That's just file I/O. You can easily deadlock coda with any other file operation. In fact coda is _less_ robust wrt a misbehaving userspace server than fuse by a big margin. Miklos _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm