diff options
Diffstat (limited to 'kernel/rcu/tree_stall.h')
| -rw-r--r-- | kernel/rcu/tree_stall.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h index 69482c2f0771..d16afeb11506 100644 --- a/kernel/rcu/tree_stall.h +++ b/kernel/rcu/tree_stall.h @@ -163,6 +163,13 @@ static void panic_on_rcu_stall(void) { static int cpu_stall; + /* + * Attempt to kick out the BPF scheduler if it's installed and defer + * the panic to give the system a chance to recover. + */ + if (scx_rcu_cpu_stall()) + return; + if (++cpu_stall < sysctl_max_rcu_stall_to_panic) return; @@ -982,8 +989,7 @@ void show_rcu_gp_kthreads(void) for_each_possible_cpu(cpu) { rdp = per_cpu_ptr(&rcu_data, cpu); cbs += data_race(READ_ONCE(rdp->n_cbs_invoked)); - if (rcu_segcblist_is_offloaded(&rdp->cblist)) - show_rcu_nocb_state(rdp); + show_rcu_nocb_state(rdp); } pr_info("RCU callbacks invoked since boot: %lu\n", cbs); show_rcu_tasks_gp_kthreads(); |