On Wed, 3 May 2023 16:05:15 -0400 Joe Lawrence <joe.lawrence@xxxxxxxxxx> wrote: > On 4/14/23 05:53, Mark Rutland wrote: > > > > * How is this going to work with rust? > > > > It's not clear to me whether/how things like ftrace, RELIABLE_STACKTRACE, and > > live-patching are going to work with rust. We probably need to start looking > > soon. > > > > [ cc += Steve ] > > For me, any explanation of kernel livepatching to another kernel dev > usually starts with ftrace, handlers, function granularity, etc. > Thinking about livepatching + rust, I can only imagine there will be a > lot of known and unknown gotchas with respect to data scoping, stacks, > relocations, etc... but I would still work my way up from learning more > about how / if Rust code will be trace-able and what that roadmap may be. > > Any thoughts on that Steve? I see that the "Kernel Testing & > Dependability" microconf has Rust on their proposal, are there any other > planned talks re: ftrace / rust? > Thanks for bringing this up. ftrace on rust has been on the back of my mind, and yeah, we should start looking into it. I should push for a tracing MC, we haven't had one in a few years. -- Steve
