Created attachment 306341 [details] config that fails to build Building a kernel for riscv64 with CONFIG_KASAN_INLINE=y set fails when tools/bpf/resolve_btfids/resolve_btfids is run with with the error message: ``` FAILED elf_update(WRITE): no error make[2]: *** [scripts/Makefile.vmlinux:37: vmlinux] Error 255 make[2]: *** Deleting file 'vmlinux' make[1]: *** [/home/jason/rpmbuild/BUILD/kernel-6.8.10/linux-6.8.10-300.1.riscv64.fc40.riscv64/Makefile:1174: vmlinux] Error 2 make: *** [Makefile:252: __sub-make] Error 2 ``` The attached config is the kernel-riscv64-debug-fedora.config from the Fedora 40 riscv kernel package available at http://riscv.rocks/koji/buildinfo?buildID=305900 Initially, I was trying to build a fedora debug kernel package, but I have also tried this with vanilla 6.8.10, 6.9.1, and 2024-05-21 linux-next with the same result running `make -j4 vmlinuz.efi` using this config with the same result. If I switch from CONFIG_KASAN_INLINE=y to CONFIG_KASAN_OUTLINE=y the build succeeds. I am building on Fedora 40 on a VisionFive 2, gcc 14.1.1-1, binutils 2.42. Please let me know if there is other information I can gather.
This is due to the issue described here: https://lore.kernel.org/all/20240527153137.271933-1-alexghiti@rivosinc.com/T/#t The vmlinux file was over 2GB with CONFIG_KASAN_INLINE=y $ ls -l vmlinux && ls -lh vmlinux -rwxr-xr-x. 1 jason jason 2455700072 May 27 18:17 vmlinux -rwxr-xr-x. 1 jason jason 2.3G May 27 18:17 vmlinux With the patch for resolve_btfids applied I was able to build and boot successfully. $ uname -r && grep CONFIG_KASAN_INLINE /boot/config-6.8.11-300.1.riscv64.fc40.riscv64+debug 6.8.11-300.1.riscv64.fc40.riscv64+debug CONFIG_KASAN_INLINE=y
Awesome, thank you for posting an update! If everything is working as expected with the patch applied, please consider closing the issue.