On Wed, Jan 17, 2018 at 10:12:32AM -0800, Andy Lutomirski wrote: > I would optimize for simplicity, not speed. You're already planning > to write to CR3, which is serializing, blows away the TLB, *and* takes > the absurdly large amount of time that the microcode needs to blow > away the TLB. Okay, so I am going to do the stack-switch before pt_regs is restored. This is at least better than playing games with hiding the entry/exit %esp somewhere in stack-memory. Thanks, Joerg -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
