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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 200039] BT advertising packet wakes up the system from S3 and suspend-to-idle
Date: Tue, 16 Oct 2018 01:26:55 +0000
Message-ID: <bug-200039-62941-Qa5fNxHQW7@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-200039-62941@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=200039

--- Comment #22 from AceLan Kao (acelan@gmail.com) ---
I think the behavior should be normal.
When BT dialog is opened, it start accepting all advertisement, and stop
receiving packet after it's closed. This behavior is easy to be observed. From
the full log, packets before #219 are received when the BT dialog is opened,
and #220 is received during S3.

But the issue is, the advertising packets are only be received after there is a
paired BT4 device(no matter it's connected or not).
It very simple to verify.

1. remove all BT devices from BT dialog and close the BT dialog
2. run "btmon" and got nothing

1. pair non-BT4 devices(you can leave it connected) and close BT dialog
2. nothing from "btmon" if you don't touch the paired device.

1. pair BT4 devices and disconnected them(even power off them)
2. we got advertising packet from other BT4 devices.

I'm not sure if "Accept all advertisement" is the culprit, but I'm willing to
know if there is any command we can try to disable it to see if it helps.

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Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-200039-62941@https.bugzilla.kernel.org/>
2018-10-08  7:19 ` bugzilla-daemon
2018-10-08  7:21 ` bugzilla-daemon
2018-10-08  7:31 ` bugzilla-daemon
2018-10-09 10:53 ` bugzilla-daemon
2018-10-15  7:07 ` bugzilla-daemon
2018-10-15  8:43 ` bugzilla-daemon
2018-10-15 10:53 ` bugzilla-daemon
2018-10-15 11:25 ` bugzilla-daemon
2018-10-16  1:26 ` bugzilla-daemon [this message]
2018-10-16  6:28 ` bugzilla-daemon
2018-10-17  5:27 ` bugzilla-daemon
2018-10-27 19:22 ` bugzilla-daemon
2018-10-29  3:14 ` bugzilla-daemon
2018-11-16 15:17 ` bugzilla-daemon
2018-11-16 15:27 ` bugzilla-daemon
2019-02-27 15:22 ` bugzilla-daemon
2019-03-19  9:35 ` bugzilla-daemon
2019-03-19  9:43 ` bugzilla-daemon
2019-03-19  9:45 ` bugzilla-daemon
2019-09-11  8:29 ` bugzilla-daemon
2019-09-11 11:24 ` bugzilla-daemon
2019-09-11 16:05 ` bugzilla-daemon
2019-09-11 16:18 ` bugzilla-daemon
2019-09-19 14:45 ` bugzilla-daemon

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