cannot reboot the system

[figozhang]

i am using Linux 5.0 kernel and opensbi, i found it cannot reboot:

root@: ~# reboot [ OK ] Closed LVM2 poll daemon socket. [ OK ] Stopped target Timers. [ OK ] Stopped Daily apt upgrade and clean activities. [ OK ] Stopped target Graphical Interface. [ OK ] Stopped Daily rotation of log files. [ OK ] Stopped target Multi-User System. Stopping Regular background program processing daemon... [ OK ] Stopped Periodic ext4 Onli…ata Check for All Filesystems. [ OK ] Stopped Daily apt download activities. [ OK ] Stopped target System Time Synchronized. [ OK ] Stopped target Login Prompts. Stopping Getty on tty1... [ OK ] Stopped getty on tty2-tty6… and logind are not available. Stopping Getty on tty5... Stopping Serial Getty on hvc0... Stopping Getty on tty3... Stopping Getty on tty4... Stopping Getty on tty6... Stopping Getty on tty2... [ OK ] Stopped Daily Cleanup of Temporary Directories. Stopping Serial Getty on ttyS0... Stopping Availability of block devices... [ OK ] Stopped Regular background program processing daemon. [ OK ] Stopped Getty on tty2. [ OK ] Stopped Serial Getty on hvc0. [ OK ] Stopped Getty on tty1. [ OK ] Stopped Serial Getty on ttyS0. [ OK ] Stopped Getty on tty3. [ OK ] Stopped Getty on tty4. [ OK ] Stopped Getty on tty5. [ OK ] Stopped Getty on tty6. [ OK ] Removed slice system-serial\x2dgetty.slice. [ OK ] Removed slice system-getty.slice. Stopping Permit User Sessions... [ OK ] Stopped Availability of block devices. [ OK ] Stopped Permit User Sessions. [ OK ] Stopped target Network. Stopping ifup for eth0... Stopping Raise network interfaces... [ OK ] Stopped target Basic System. [ OK ] Stopped target Slices. [ OK ] Stopped target Paths. [ OK ] Stopped target Sockets. [ OK ] Stopped target Remote File Systems. [ OK ] Stopped target System Initialization. Stopping Load/Save Random Seed... [ OK ] Stopped target Swap. [ OK ] Stopped target Local Encrypted Volumes. [ OK ] Stopped Forward Password R…uests to Wall Directory Watch. [ OK ] Stopped Dispatch Password …ts to Console Directory Watch. Stopping Update UTMP about System Boot/Shutdown... Stopping Network Time Synchronization... [ OK ] Stopped Network Time Synchronization. [ OK ] Stopped Raise network interfaces. [ OK ] Stopped Load/Save Random Seed. [ OK ] Stopped Update UTMP about System Boot/Shutdown. [ OK ] Stopped Create Volatile Files and Directories. [ OK ] Stopped ifup for eth0. [ OK ] Stopped Apply Kernel Variables. [ OK ] Stopped Load Kernel Modules. [ OK ] Stopped target Local File Systems. Unmounting /mnt... [ OK ] Unmounted /mnt. [ OK ] Reached target Unmount All Filesystems. [ OK ] Stopped target Local File Systems (Pre). [ OK ] Stopped Create Static Device Nodes in /dev. [ OK ] Stopped Create System Users. [ OK ] Stopped Remount Root and Kernel File Systems. [ OK ] Reached target Shutdown. [ OK ] Reached target Final Step. [ OK ] Started Reboot. [ OK ] Reached target Reboot. Stopping Monitoring of LVM…meventd or progress polling... [ 64.117212] printk: systemd-shutdow: 28 output lines suppressed due to ratelimiting [ 64.997467] systemd-shutdown[1]: Syncing filesystems and block devices. [ 65.155286] systemd-shutdown[1]: Sending SIGTERM to remaining processes... [ 65.214518] systemd-journald[86]: Received SIGTERM from PID 1 (systemd-shutdow). [ 65.239998] systemd-shutdown[1]: Sending SIGKILL to remaining processes... [ 65.296737] systemd-shutdown[1]: Unmounting file systems. [ 65.314410] [265]: Remounting '/' read-only in with options '(null)'. [ 65.438658] EXT4-fs (vda): re-mounted. Opts: (null) [ 65.460945] systemd-shutdown[1]: All filesystems unmounted. [ 65.461367] systemd-shutdown[1]: Deactivating swaps. [ 65.462366] systemd-shutdown[1]: All swaps deactivated. [ 65.462689] systemd-shutdown[1]: Detaching loop devices. [ 65.498962] systemd-shutdown[1]: All loop devices detached. [ 65.499464] systemd-shutdown[1]: Detaching DM devices. [ 65.536748] reboot: Restarting system [ 86.532464] rcu: INFO: rcu_sched self-detected stall on CPU [ 86.533065] rcu: 0-....: (5249 ticks this GP) idle=702/1/0x4000000000000002 softirq=16275/16275 fqs=2614 [ 86.533453] rcu: (t=5250 jiffies g=9509 q=18) [ 86.533891] Task dump for CPU 0: [ 86.534165] systemd-shutdow R running task 0 1 0 0x00000008 [ 86.534537] Call Trace: [ 86.534754] [] walk_stackframe+0x0/0x156 [ 86.535037] [] show_stack+0x30/0x3a [ 86.535292] [] sched_show_task+0x408/0x41e [ 86.535564] [] dump_cpu_task+0x58/0x62 [ 86.535824] [] rcu_dump_cpu_stacks+0x9e/0x110 [ 86.536182] [] print_cpu_stall+0x1f0/0x438 [ 86.536660] [] check_cpu_stall+0x4fe/0x594 [ 86.536930] [] rcu_pending+0x46/0x28c [ 86.537183] [] rcu_check_callbacks+0x206/0x224 [ 86.537464] [] update_process_times+0x30/0x110 [ 86.537737] [] tick_periodic+0x202/0x212 [ 86.537993] [] tick_handle_periodic+0x28/0x98 [ 86.538264] [] riscv_timer_interrupt+0x50/0x5a [ 86.538582] [] do_IRQ+0xd4/0x1a2 [ 86.538869] [] ret_from_exception+0x0/0xc [ 86.539143] [] machine_restart+0x14/0x16

[avpatel]

Currently, reboot/shutdown support is pending for SiFive Unleashed Platform in OpenSBI. Can you send patch?