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The kernel configs were constructed by running the 4.18.x config through the 4.19 oldconfig process. The 4.19.x has a new option, RANDOM_TRUST_CPU, which indicates if the CPUs random instruction is to be trusted. It defaults to "no" and this default was accepted. Most of the defaults were accepted, except for: BLK_CGROUP_IOLATENCY=y NFT_TUNNEL=y NFT_OSF=y NFT_TPROXY=y NETFILTER_XT_MATCH_SOCKET=y NET_VENDOR_CADENCE=n NET_VENDOR_NETERION=n NET_VENDOR_PACKET_ENGINES=n We also disallow CIFS for insecure legacy servers: CIFS_ALLOW_INSECURE_LEGACY=n For arm64, the following changes were made to the default: SENSORS_RASPBERRYPI_HWMON=y CRYPTO_DEV_QCOM_RNG=m CRYPTO_DEV_HISI_SEC=m For s390x, the additional changes were made to the default: KERNEL_BZIP2 (default is gzip) GCC_PLUGINS=y GCC_PLUGIN_STRUCTLEAK=y GCC_PLUGIN_STRUCTLEAK_BYREF_ALL=y GCC_PLUGIN_RANDSTRUCT=y GCC_PLUGIN_RANDSTRUCT_PERFORMANCE=y Running the 4.18 and 4.19 kernel config through ./scripts/kconfig-split.py yields the following 4.19.x only config options for x86_64: The x86_64 kernel difference to 4.18 for CONFIG_ARCH_SUPPORTS_ACPI=y CONFIG_BLK_CGROUP_IOLATENCY=y CONFIG_BNXT_HWMON=y CONFIG_BUILD_SALT="" CONFIG_CONSOLE_LOGLEVEL_QUIET=4 CONFIG_CRASH_CORE=y CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y CONFIG_HAVE_RELIABLE_STACKTRACE=y CONFIG_MEMCG_KMEM=y CONFIG_MLX5_EN_ARFS=y CONFIG_MLX5_EN_RXNFC=y CONFIG_NETFILTER_NETLINK_OSF=y CONFIG_NETFILTER_XT_MATCH_SOCKET=y CONFIG_NFT_OSF=y CONFIG_NFT_TPROXY=y CONFIG_NFT_TUNNEL=y CONFIG_NF_SOCKET_IPV4=y CONFIG_NF_SOCKET_IPV6=y CONFIG_XEN_SCRUB_PAGES_DEFAULT=y Signed-off-by: Rolf Neugebauer <rn@rneugeba.io>
See ../docs/kernels.md for more information on kernel builds.