Re: [PATCH] PM / Sleep: Print active wakeup sources when reading wakeup events blocked
From: Rafael J. Wysocki <hidden>
Date: 2016-12-06 21:07:59
On 12/5/2016 4:34 AM, xing wei wrote:
If there are any wakeup events being processed, read operation on /sys/power/wakeup_count will be blocked, we can print the name of all active wakeup sources to help us find out who will block system enter sleep. Signed-off-by: xing wei <redacted>
This doesn't seem to make it to linux-pm, I'm not sure why exactly. Can you try to send it again, please?
quoted hunk
--- drivers/base/power/wakeup.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index 62e4de2..bf9ba26 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c@@ -811,7 +811,7 @@ void pm_print_active_wakeup_sources(void) rcu_read_lock(); list_for_each_entry_rcu(ws, &wakeup_sources, entry) { if (ws->active) { - pr_info("active wakeup source: %s\n", ws->name); + pr_debug("active wakeup source: %s\n", ws->name); active = 1; } else if (!active && (!last_activity_ws ||@@ -822,7 +822,7 @@ void pm_print_active_wakeup_sources(void) } if (!active && last_activity_ws) - pr_info("last active wakeup source: %s\n", + pr_debug("last active wakeup source: %s\n", last_activity_ws->name); rcu_read_unlock(); }@@ -905,7 +905,7 @@ bool pm_get_wakeup_count(unsigned int *count, bool block) split_counters(&cnt, &inpr); if (inpr == 0 || signal_pending(current)) break; - + pm_print_active_wakeup_sources(); schedule(); } finish_wait(&wakeup_count_wait_queue, &wait);