On Tue, May 24, 2022 at 12:40:06AM +0200, Heiko Stübner wrote: > Hi Guenter, > > Am Montag, 23. Mai 2022, 18:18:47 CEST schrieb Guenter Roeck: > > On 5/23/22 08:18, Guo Ren wrote: > > > I tested Palmer's branch, it's okay: > > > 8810d7feee5a (HEAD -> for-next, palmer/for-next) riscv: Don't output a > > > bogus mmu-type on a no MMU kernel > > > > > > I also tested linux-next, it's okay: > > > > > > rv64_rootfs: > > > # uname -a > > > Linux buildroot 5.18.0-next-20220523 #7 SMP Mon May 23 11:15:17 EDT > > > 2022 riscv64 GNU/Linux > > > # > > > > That is is ok with one setup doesn't mean it is ok with > > all setups. It is not ok with my root file system (from > > https://github.com/groeck/linux-build-test/tree/master/rootfs/riscv64), > > with qemu v6.2. > > That is very true that it shouldn't fail on any existing (qemu-)platform, > but as I remember also testing Guo's series on both riscv32 and riscv64 > qemu platforms in the past, I guess it would be really helpful to get more > information about the failing platform you're experiencing so that we can > find the source of the issue. > > As it looks like you both tested the same kernel source, I guess the only > differences could be in the qemu-version, kernel config and rootfs. > Is your rootfs something you can share or that can be rebuilt easily? > I provided a link to my root file system above. The link points to two root file systems, for initrd (cpio archive) and for ext2. I also mentioned above that I used qemu v6.2. And below I said > My root file system uses musl. I attached the buildroot configuration below. The buildroot version, if I remember correctly, was 2021.02. Kernel configuration is basically defconfig. However, I do see one detail that is possibly special in my configuration. # The latest kernel assumes SBI version 0.3, but that doesn't match qemu # at least up to version 6.2 and results in hangup/crashes during reboot # with sifive_u emulations. enable_config "${defconfig}" CONFIG_RISCV_SBI_V01 Hope that helps, Guenter --- BR2_riscv=y BR2_TOOLCHAIN_BUILDROOT_MUSL=y BR2_KERNEL_HEADERS_4_19=y BR2_BINUTILS_VERSION_2_32_X=y BR2_TARGET_RUN_TESTSCRIPT=y BR2_SHUTDOWN_COMMAND_POWEROFF=y BR2_SYSTEM_DHCP="eth0" BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y BR2_PACKAGE_STRACE=y BR2_PACKAGE_I2C_TOOLS=y BR2_PACKAGE_PCIUTILS=y BR2_PACKAGE_DTC=y BR2_PACKAGE_DTC_PROGRAMS=y BR2_PACKAGE_IPROUTE2=y BR2_TARGET_ROOTFS_BTRFS=y BR2_TARGET_ROOTFS_CPIO=y BR2_TARGET_ROOTFS_CPIO_GZIP=y BR2_TARGET_ROOTFS_EXT2=y BR2_TARGET_ROOTFS_EXT2_SIZE="16M" BR2_TARGET_ROOTFS_EXT2_GZIP=y BR2_TARGET_ROOTFS_ISO_GZIP=y BR2_TARGET_ROOTFS_SQUASHFS=y # BR2_TARGET_ROOTFS_TAR is not set