Quoting Steven Rostedt (2020-03-01 18:18:16) > On Sun, 1 Mar 2020 15:52:47 +0000 > Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > > To facilitate construction of per-client event ringbuffers, in > > particular for a per-client debug and error report log, it would be > > extremely useful to create an anonymous file that can be handed to > > userspace so that it can see its and only its events. trace already > > provides a means of encapsulating the trace ringbuffer into a struct > > file that can be opened via the tracefs, and so with a couple of minor > > tweaks can provide the same access via an anonymous inode. > > I'm curious to why we need it to be anonymous. Why not allow them to be > visible from the tracing directory. This could allow for easier > debugging. Note, the trace instances have ref counters thus they can't > be removed if something has a reference to it. Do you really want a few thousand (or even tens) i915-client-%d? That does not particularly seem like it adds ease-of-use, and would need to be restricted to the client [or root]. The intent is for the client to have a private channel for detailed debug/error reporting of its own calls into the kernel. -Chris _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
