Hi, I am getting this error while trying to run gem5 in full system. I have used qemu to prepare an image with ext4 filesystem in it, and used root=/dev/sda2 in FSconfig.py. I can boot using qemu with the following command qemu-system-x86_64 -hda _u.img -kernel /home/user/linux-4.14/arch/x86/boot/bzImage -append root=/dev/sda -initrd /home/user/linux-4.14/arch/x86/boot/initrd.img -m 2048 But I get the following issue in the terminal [ 0.744431] VFS: Mounted root (ext4 filesystem) on device 8:2. [ 0.745809] devtmpfs: mounted [ 0.763060] Freeing unused kernel memory: 2300K [ 0.763068] Write protecting the kernel read-only data: 14336k [ 0.764548] Freeing unused kernel memory: 1036K [ 0.767489] Freeing unused kernel memory: 160K [ 0.826224] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 0.856382] systemd[1]: System time before build time, advancing clock. [ 0.860192] systemd[1]: Failed to insert module 'autofs4': No such file or directory [ 0.864100] systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVIN [ 0.864706] systemd[1]: Detected architecture x86-64. [ 0.864817] systemd[1]: segfault at 261 ip 00007f09fcfdd646 sp 00007ffd08edd468 error 4 in libc-2.27.so[7f09fcf2c000+1e7000] [ 0.872054] systemd[1]: Caught <SEGV>, dumped core as pid 165. [ 0.872071] systemd[1]: Freezing execution. What do I need to do? Thanks,