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The current topology code confuses core id vs physical package id. In other words /sys/devices/system/cpu/cpuX/topology/core_id displays the physical_package_id (aka socket id) instead of the core id. The physical_package_id sysfs attribute always displays "-1" instead of the socket id. Fix this mix-up with a small patch which defines and initializes topology_physical_package_id correctly and fixes the broken core id handling. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>