March 30, 20242 yr I have flashed the last 23.8 bookworm lite image to my lepotato 1GB model, and it launched with 927 MB total memory. running apt update ; apt upgrade ; reboot it drops to 862M How can I reclaim the remaining memory? This is mostly a headless server i do not need any GPU. just basic hdmi output for troubleshooting purposes. before: Welcome to Armbian 23.8.1 Bookworm with Linux 6.1.50-current-meson64 System load: 8% Up time: 4 min Memory usage: 13% of 927M IP: CPU temp: 48°C Usage of /: 4% of 29G After: Welcome to Armbian 24.2.1 Bookworm with Linux 6.6.16-current-meson64 System load: 19% Up time: 1 min Memory usage: 13% of 862M IP: Edited March 31, 20242 yr by ovacikar
March 30, 20242 yr My suggestion since I assume you don't have an armbianmonitor output from before your upgrade, would be to use armbian-config and go back to a 6.1 kernel and see if it is the kernel that is causing the difference. If so then provide an armbianmonitor output with the old kernel and look at the memory info in the output to see where the difference is.
March 30, 20242 yr Author It does not let me roll back kernel, but offers me a newer kernel. I could just flash the image again and freeze the armbian kernel upgrades to stay on 6.1 ?
March 30, 20242 yr 16 minutes ago, SteeMan said: u don't have an armbianmonitor output from before your upgrade Actually there is. ### meminfo: MemTotal: 949752 kB And after: ### meminfo: MemTotal: 882904 kB Maybe uboot issue with memory detection?
March 30, 20242 yr The 6.6.y kernel for reasons I have yet to figure out reads the MEM wrong. 6.7 and up is not affected by this. Nor is 6.1 to 6.5. I would have thought after so many REVS this would have been resolved, but I have yet to see it come up as a topic of discussion. This in my experience is also not PLATFORM specific. It happens on all my boards regardless of SoC and PLATFORM.
March 31, 20242 yr Add this to your cmdline. swiotlb=0 https://github.com/raspberrypi/linux/commit/3e0065d1cb5bd58e35e0c7722ffe6303dfe0364f
March 31, 20242 yr Author Thanks, I am in a change freeze now on stable 6.1 kernel , will revisit after Apr 8th. Edited March 31, 20242 yr by ovacikar
April 5, 20242 yr Author Where was I supposed to apply this, /boot/armbianEnv.txt ? so far no luck, memtotal 882 MB again https://paste.armbian.com/ereciriyon Edited April 5, 20242 yr by ovacikar
April 7, 20242 yr Author Yes , this fixed the memory . Thanks ! I can no longer edit the post subject - to mark it solved. Edited April 9, 20242 yr by ovacikar
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