Re: [PATCH] tee: optee: add might_sleep for RPC requests

Hi Rouven, On Wed, Jul 3, 2019 at 12:04 PM Rouven Czerwinski wrote: > > If the kernel is compiled with CONFIG_PREEMPT_VOLUNTARY and OP-TEE is > executing a long running workload, the following errors are raised: > > [ 1705.971228] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: > [ 1705.97719

[PATCH] tee: optee: add might_sleep for RPC requests

If the kernel is compiled with CONFIG_PREEMPT_VOLUNTARY and OP-TEE is executing a long running workload, the following errors are raised: [ 1705.971228] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 1705.977195] rcu: (detected by 0, t=2102 jiffies, g=51977, q=3) [ 1705.983152] rcu: All