Hi When using (only tested with XZ compression, but the others should behave similarly) CONFIG_MODULE_COMPRESS_XZ=y to compress the modules, it looks that the debug symbols are not striped. Building with the attached test configuration results in packages: -rw-r--r-- 1 build build 8.9M Dec 14 20:47 linux-headers-6.7.0-rc5+_6.7.0-rc5-00042-g88035e5694a8-1_amd64.deb -rw-r--r-- 1 build build 75M Dec 14 20:48 linux-image-6.7.0-rc5+-dbg_6.7.0-rc5-00042-g88035e5694a8-1_amd64.deb -rw-r--r-- 1 build build 1014M Dec 14 20:47 linux-image-6.7.0-rc5+_6.7.0-rc5-00042-g88035e5694a8-1_amd64.deb -rw-r--r-- 1 build build 1.3M Dec 14 20:47 linux-libc-dev_6.7.0-rc5-00042-g88035e5694a8-1_amd64.deb This is odd, the linux-image-6.7.0-rc5+ package has a size of almost 1G and the modules are not stripped. Switching the values instread to CONFIG_MODULE_COMPRESS_NONE=y # CONFIG_MODULE_COMPRESS_XZ is not set the packages are again produced correctly: -rw-r--r-- 1 build build 8.9M Dec 14 20:59 linux-headers-6.7.0-rc5+_6.7.0-rc5-00042-g88035e5694a8-2_amd64.deb -rw-r--r-- 1 build build 819M Dec 14 21:00 linux-image-6.7.0-rc5+-dbg_6.7.0-rc5-00042-g88035e5694a8-2_amd64.deb -rw-r--r-- 1 build build 73M Dec 14 20:59 linux-image-6.7.0-rc5+_6.7.0-rc5-00042-g88035e5694a8-2_amd64.deb -rw-r--r-- 1 build build 1.3M Dec 14 20:59 linux-libc-dev_6.7.0-rc5-00042-g88035e5694a8-2_amd64.deb Regards, Salvatore