full RAM size not recognized after applying rt patch
by hutcruchi from LinuxQuestions.org on (#4PYD3)
I use 32bit powerpc with the linux 4.1.8 kernel and just applied the full rt patch which turned off the CONFIG_HIGHMEM configuration in menuconfig.
Following that my RAM size halved. the kernel recognizes only 766MB out of 1.5GB.
I saw there is a patch for restoring CONFIG_HIGHMEM configuration while still appliying the rt patch but its working for ARM only.
How can i change the settings in order the kernel to recognize the whole RAM without using high memory area. (maybe create more zone_normal? more nodes? or just extend the low memory area?) thanks!
Following that my RAM size halved. the kernel recognizes only 766MB out of 1.5GB.
I saw there is a patch for restoring CONFIG_HIGHMEM configuration while still appliying the rt patch but its working for ARM only.
How can i change the settings in order the kernel to recognize the whole RAM without using high memory area. (maybe create more zone_normal? more nodes? or just extend the low memory area?) thanks!