On systems where the kernel was compiled without ksm enabled (CONFIG_KSM=y), the status display on the dashboard and the corresponding RRD graphs in the administration area do not work.
This is e.g. the case on the Raspberry Pi with the Raspberry Pi kernel (see https://github.com/raspberrypi/linux/issues/1238).
To get the monitor working anyway, it is necessary to skip the section in the code that reads the Kernel Samepage Merging size if the file to be read does not exist.
On systems where the kernel was compiled without ksm enabled (
CONFIG_KSM=y), the status display on the dashboard and the corresponding RRD graphs in the administration area do not work. This is e.g. the case on the Raspberry Pi with the Raspberry Pi kernel (see https://github.com/raspberrypi/linux/issues/1238).To get the monitor working anyway, it is necessary to skip the section in the code that reads the Kernel Samepage Merging size if the file to be read does not exist.
This does not affect systems with ksm.