Public bug reported: On ppc64 we notice each process calls mfpvr twice. This faults and gets emulated in the kernel.
We have counters to track this: # cat /sys/kernel/debug/powerpc/emulated_instructions/mfpvr 2370 # cat /sys/kernel/debug/powerpc/emulated_instructions/mfpvr 2372 # cat /sys/kernel/debug/powerpc/emulated_instructions/mfpvr 2374 This was traced back to an 8xx workaround for a dcbz issue. ** Affects: eglibc (Ubuntu) Importance: Undecided Status: New ** Affects: eglibc (Ubuntu Trusty) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1333499 Title: PowerPC 8xx dcbz workaround impacts 64bit To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1333499/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs