pahole memory allocation problems

[jeffmerkey]

When building RHEL 9.4 running as a qemu-kvm vm under gnome-boxes, it is required to configure a swap file size in excess of 10 GB for the kvm image to prevent pahole from crashing and triggering the OOM Killer and failing linux kernel build. it requires excessive amounts of memory when parsing the BTF data from vmlinux. gcc linking with ld works but when pahole executes it consumes excessive memory during 'make bzImage modules'. It really needs to be rewritten with it's own internal lru or save data as intermediate files rather than just sucking up 6-7 GB of memory and crashing the system. Is there some workaround for this issue? Thanks.

[jeffmerkey]

I will look over the program and possibly suggest a fix for this.

[alan-maguire]

have you tested the "next" branch? It has multiple fixes around memory usage.