Re: Qemu aarch64 install

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  Hi,

> We lose some ram on aarch64 due to cma allocation, its something that is
> actively being looked at. Anaconda also needs a fair amount of ram during
> the network install to copy files. Once the install is complete, you should
> be able to reduce the ram to 2048.  

2G not being enough is pretty excessive.  I never had such problems on
x86.  Only recently (a year ago or so) I started using 2G for guests, 1G
used to be enough even for network installs.

I suspect a big factor here is CONFIG_ARM64_64K_PAGES=y.  Raspberry pi
3, with standard fedora kernel (64k pages), minimal install (@core),
booted to the shell prompt.  "free" reports ~122MB of memory as used.
Same with a self-compiled kernel (4k pages), I get ~44MB of used memory.
That is almost factor three!

cheers,
  Gerd

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