Re: WARN include/linux/trace_recursion.h:162 (powerpc)

2023-02-02 Thread Sachin Sant
>> ---[ end trace ]--- >> [ cut here ] >> RCU not on for: shared_cede_loop+0xc/0x170 >> >> The code in question was added by >> commit d099dbfd330686a8c09cd8944bcc77a56f9e7815 >>cpuidle: tracing: Warn about !rcu_is_watching() > > Note that by selecting

Re: WARN include/linux/trace_recursion.h:162 (powerpc)

2023-02-02 Thread Peter Zijlstra
On Thu, Feb 02, 2023 at 01:46:32PM +0530, Sachin Sant wrote: > Following warning is seen with 6.2.0-rc6-next-20230201 on a > Power10 server. > > [ cut here ] > RCU not on for: check_return_regs_valid+0xc/0x1e0 > WARNING: CPU: 9 PID: 0 at include/linux/trace_recursion.h:162

WARN include/linux/trace_recursion.h:162 (powerpc)

2023-02-02 Thread Sachin Sant
Following warning is seen with 6.2.0-rc6-next-20230201 on a Power10 server. [ cut here ] RCU not on for: check_return_regs_valid+0xc/0x1e0 WARNING: CPU: 9 PID: 0 at include/linux/trace_recursion.h:162 arch_ftrace_ops_list_func+0x2c0/0x2e0 Modules linked in: kmem device_dax