On Thu, May 28, 2020 at 12:19:32PM -0700, Linus Torvalds wrote: > On Thu, May 28, 2020 at 12:17 PM Al Viro <v...@zeniv.linux.org.uk> wrote: > > > > Might make sense to change the summary of that pull request to something > > like > > make sure we don't forget to report the xstate components that > > happen > > to be in init state - both for coredump and for PTRACE_GETREGSET > > Note that this has nothing to do with x86 per se. > > It's more about ->getregs() being a horrid interface, and being easy > to get wrong in general. The fact that xstate is complex is just one > such trigger.
The only one I've ran into so far, fortunately... Almost all instances write sequentially; the only exceptions are this one (buggy) and ia64 horrors with unwind. I certainly agree that ->get() is an atrocity...
