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authorPaul E. McKenney <paulmck@kernel.org>2020-06-22 18:25:34 +0200
committerPaul E. McKenney <paulmck@kernel.org>2020-08-25 03:36:05 +0200
commite082c7b38185af0f59e55efff840939c35391f85 (patch)
tree294b9c37bce11f8db32fde0a867f93425057672c /kernel/rcu
parentrcu/trace: Use gp_seq_req in acceleration's rcu_grace_period tracepoint (diff)
downloadlinux-e082c7b38185af0f59e55efff840939c35391f85.tar.xz
linux-e082c7b38185af0f59e55efff840939c35391f85.zip
nocb: Clarify RCU nocb CPU error message
A message of the form "rcu: !!! lDTs ." can be tracked down, but doing so is not trivial. This commit therefore eases this process by adding text so that this error message now reads as follows: "rcu: nocb GP activity on CB-only CPU!!! lDTs ." Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/tree_plugin.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 982fc5be5269..bbc0c07ce56e 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -2417,7 +2417,7 @@ static void show_rcu_nocb_state(struct rcu_data *rdp)
!waslocked && !wastimer && !wassleep)
return; /* Nothing untowards. */
- pr_info(" !!! %c%c%c%c %c\n",
+ pr_info(" nocb GP activity on CB-only CPU!!! %c%c%c%c %c\n",
"lL"[waslocked],
"dD"[!!rdp->nocb_defer_wakeup],
"tT"[wastimer],