On Tue, Oct 11, 2022 at 01:44:54PM -0700, Paramjit Oberoi wrote: > > > The only downside is it would break some code that works today because > it > > > ran in contexts where the pmsg address was stable (no per-cpu ftrace > > > buffers, or power-of-two CPUs). > > > > I don't follow? And actually, I wonder about the original patch now -- > > nothing should care about the actual addresses. Everything should be > > coming out of the pstore filesystem. > > We are running VMs with the pstore RAM mapped to a file, and using some > tools outside the VM to read/manipulate the pstore after VM shutdown. Ah-ha! Interesting. Well, I think it will be more stable this way even for that. :) -- Kees Cook
