The downstream kernels are to old, we even get warnings when building on latest master. No updates expected from Google.
linux-coral: OLDEST_KERNEL is "5.15" but the version of the kernel you are building is "5.4.237+g336307819297+p21" - therefore glibc as built may not be compatible with this kernel.
The best alternative is to move to linux-imx, and dump the older kernels.
The downstream kernels are to old, we even get warnings when building on latest master. No updates expected from Google.
The best alternative is to move to linux-imx, and dump the older kernels.