Discussion

Running gVisor on Raspberry Pi 5: A Kernel Configuration Adventure

geerlingguy: > Fair warning: compiling a kernel on the Pi itself takes several hours.One nit: this should only take about 40 minutes on a Pi 5, assuming you're compiling with -j6 to use all the cores.(Still faster to cross-compile)

_ananos_: well, the tricky detail here (which we do not mention in the post, our bad) is that we got the raspbian config (cp /boot/config ... .config && make oldconfig) which includes most modules, and that's why it took more.But yeap, good point about using the -j flag, it really accelerates the build!

bionade24: Using distcc networked compilation instead of cross-compiling is reasonably fast too and easier to set up if one isn't familiar with either.

uber1024: the most frustrating part with having to compile a custom kernel is the maintenance burden (packaging/updating etc.), and not the time it takes to build…I had a similar issue with networking modules for calico (k8s cni) on both rpis and jetson boards…