Re: Query: rcu_sched detected stalls with function_graph tracer

2017-08-02 Thread Steven Rostedt
On Wed, 2 Aug 2017 12:02:21 +0530 Pratyush Anand wrote: > Hi Steve, > > I am using a 3.10 based kernel, and when I enable function_graph with one > particular x86_64 machine, I encounter rcu_sched stall. > > echo function_graph > /sys/kernel/debug/tracing/current_tracer > echo 1 > /sys/kernel/

Query: rcu_sched detected stalls with function_graph tracer

2017-08-01 Thread Pratyush Anand
Hi Steve, I am using a 3.10 based kernel, and when I enable function_graph with one particular x86_64 machine, I encounter rcu_sched stall. echo function_graph > /sys/kernel/debug/tracing/current_tracer echo 1 > /sys/kernel/debug/tracing/tracing_on If I use 4.13-rc2, then its better, but stil