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
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https://bugs.launchpad.net/bugs/1333499
Title:
PowerPC 8xx dcbz workaround impacts 64bit
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