Hi,

when I try booting Linux 5.1 on the Banana Pi, it stops with locked up
CPUs:

[  OK  ] Started udev Coldplug all Devices.
[  OK  ] Started Create Volatile Files and Directories.
[  OK  ] Reached target System Time Synchronized.
         Starting Update UTMP about System Boot/Shutdown...
[  OK  ] Started Update UTMP about System Boot/Shutdown.
[  OK  ] Started udev Kernel Device Manager.
[   34.271840] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   34.277793] rcu:     1-...!: (1 GPs behind) idle=fde/1/0x40000000 
softirq=1817/1820 fqs=23 
[   34.285872] rcu:     (detected by 0, t=5252 jiffies, g=1857, q=817)
[   44.294216] rcu: rcu_sched kthread starved for 5206 jiffies! g1857 f0x0 
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[   44.304202] rcu: RCU grace-period kthread stack dump:
[   68.019833] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! 
[systemd-udevd:260]
[   96.019831] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! 
[systemd-udevd:260]
[   97.291832] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   97.297760] rcu:     1-...!: (1 GPs behind) idle=fde/1/0x40000000 
softirq=1817/1820 fqs=23 
[   97.305838] rcu:     (detected by 0, t=21007 jiffies, g=1857, q=817)
[  107.314261] rcu: rcu_sched kthread starved for 20961 jiffies! g1857 f0x2 
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  107.324333] rcu: RCU grace-period kthread stack dump:
[  132.019830] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! 
[systemd-udevd:260]
[  160.019832] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! 
[systemd-udevd:260]
[  160.311830] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[  160.317758] rcu:     1-...!: (1 GPs behind) idle=fde/1/0x40000000 
softirq=1817/1820 fqs=23 
[  160.325836] rcu:     (detected by 0, t=36762 jiffies, g=1857, q=817)
[  170.334257] rcu: rcu_sched kthread starved for 36716 jiffies! g1857 f0x2 
RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[  170.344330] rcu: RCU grace-period kthread stack dump:

Any ideas what the problem could be, and how it could be solved?

Greetings
Marc

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