5.11.10 Kernel hanged while reboot

HiFive Unmatched
1

Anyone encounter this issue?

Linux unmatched-1.mzh.io 5.11.10 #1 SMP Wed Apr 7 17:37:34 UTC 2021 riscv64 riscv64 riscv64 GNU/Linux

[295478.606265] rcu: INFO: rcu_sched self-detected stall on CPU                                                       
[295478.611154] rcu:    0-....: (36748 ticks this GP) idle=32e/1/0x4000000000000002 softirq=1126790/1126790 fqs=18105 
[295478.621404]         (t=36759 jiffies g=2486677 q=93)                                                              
[295478.625862] Call Trace:                                                                                           
[295541.618283] rcu: INFO: rcu_sched self-detected stall on CPU                                                       
[295541.623171] rcu:    0-....: (52497 ticks this GP) idle=32e/1/0x4000000000000002 softirq=1126790/1126790 fqs=25843 
[295541.633420]         (t=52512 jiffies g=2486677 q=93)                                                              
[295541.637878] Call Trace:                                                                                           
[295604.634298] rcu: INFO: rcu_sched self-detected stall on CPU                                                       
[295604.639185] rcu:    0-....: (68247 ticks this GP) idle=32e/1/0x4000000000000002 softirq=1126790/1126790 fqs=33647 
[295604.649434]         (t=68265 jiffies g=2486677 q=93)                                                              
[295604.653893] Call Trace:                                                                                           
[295667.650311] rcu: INFO: rcu_sched self-detected stall on CPU                                                       
[295667.655200] rcu:    0-....: (83997 ticks this GP) idle=32e/1/0x4000000000000002 softirq=1126790/1126790 fqs=41524 
[295667.665449]         (t=84020 jiffies g=2486677 q=173)                                                             
[295667.669995] Call Trace:
2

I believe reboot is still not implemented in OpenSBI, so hardware reset is required after running reboot.

1 Like
3

If I’m not mistaken this topic has been already addressed in this thread : Reboot command.

No solution so far.

4

Correct, reboot is currently not implemented in firmware and software stack.

5

Thanks everyone! Guess I had to put it under a WIFI switch to “hard” reset :slight_smile: