TDA4VM: TDA4VH Design Validation Test rcu cpu stall warnning

Part Number: TDA4VM

Hi, expers

The rcu cpu stall warnning occur while we run Design Validation Test (system Full load) and the system stuck.

RCU warnning as follow:

[CPU7] time:thread 2.724192s     Feq:1970 Mhz    real:2.797871s  Bandwidth:40.815072 GB/s

[CPU4] time:thread 2.702266s     Feq:1986 Mhz    real:2.822112s[17755.387587] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:

[17755.393728] rcu:     5-...0: (1 ticks this GP) idle=51e/1/0x4000000000000002 softirq=202913/202914 fqs=1250644

[17818.407590] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:

[17818.413727] rcu:     5-...0: (1 ticks this GP) idle=51e/1/0x4000000000000002 softirq=202913/202914 fqs=1257695

[17881.427584] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:

[17881.433730] rcu:     5-...0: (1 ticks this GP) idle=51e/1/0x4000000000000002 softirq=202913/202914 fqs=1264853

[17944.447602] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:

[17944.453721] rcu:     5-...0: (1 ticks this GP) idle=51e/1/0x4000000000000002 softirq=202913/202914 fqs=1271935

[18007.467583] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:

We can reproduce this issue by linux torture tests as follow:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1137990/tda4vm-tda4vh-rcu-cpu-stall-warning/4423421?tisearch=e2e-sitesearch&keymatch=%20user%3A515377#4423421

Thanks

quanli