* Len Brown <lenb@xxxxxxxxxx> wrote: > From: Len Brown <len.brown@xxxxxxxxx> > > hlt_works_ok was X86_32 only, initialized to 1, and never cleared. > > On 32-bit kernels, this deletes a line from /proc/cpuinfo: "hlt_bug : no" I think you missed the valid usecase where an old CPU with broken halt is booted with the no-hlt boot parameter and does not want to crash in the HLT instruction. That "no-hlt" boot parameter does: arch/x86/kernel/cpu/bugs.c: boot_cpu_data.hlt_works_ok = 0; We can restrict compatibility, but *please* lets do it *explicitly*, not under some 'remove unused code' pretense ... Could you please list all CPU models that are affected? Thanks, Ingo _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
