From: Florian Fainelli <f.fainelli@gmail.com>
To: rafael.j.wysocki@intel.com,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
trong@android.com, Greg KH <gregkh@linuxfoundation.org>,
swboyd@chromium.org, kaleshsingh@google.com
Subject: Regression with PM / wakeup: Show wakeup sources stats in sysfs"
Date: Thu, 28 May 2020 13:46:10 -0700 [thread overview]
Message-ID: <11459cde-7f57-c95b-8cac-4301f0a2390e@gmail.com> (raw)
Hi,
Commit c8377adfa78103be5380200eb9dab764d7ca890e ("PM / wakeup: Show
wakeup sources stats in sysfs") is causing some of our tests to fail
because /sys/class/net/*/device/power/wakeup_count is now 0, despite
/sys/kernel/debug/wakeup_sources clearly indicating that the Ethernet
device was responsible for system wake-up.
What's more in looking at /sys/class/wakekup/wakeup2/event_count, we
have the number of Wake-on-LAN wakeups recorded properly, but
wakeup_count is desperately 0, why is that?
This is seen on 5.4.43, but it is reproducible on Linus' master as well.
The Ethernet driver being used is under
drivers/net/ethernet/broadcom/genet/ and the relevant part is in the
function bcmgenet_set_wol().
BTW, I think you want to backport
e976eb4b91e906f20ec25b20c152d53c472fc3fd ("PM: wakeup: Show statistics
for deleted wakeup sources again") into 5.4 and 4.19 at least.
Thank you!
--
Florian
next reply other threads:[~2020-05-28 20:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 20:46 Florian Fainelli [this message]
2020-05-29 16:51 ` Regression with PM / wakeup: Show wakeup sources stats in sysfs" Rafael J. Wysocki
2020-05-29 22:28 ` Tri Vo
2020-05-29 22:37 ` Florian Fainelli
2020-05-29 23:14 ` Tri Vo
2020-05-30 18:52 ` Florian Fainelli
2020-05-30 22:33 ` Tri Vo
2020-06-02 1:30 ` Florian Fainelli
2020-06-02 3:06 ` Florian Fainelli
2020-06-05 14:35 ` Rafael J. Wysocki
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