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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 207629] BISECTED Bluetooth: hci0: command 0x2042 tx timeout - suspend fails - Dell XPS 9300, Dell XPS 7390, Dell Inspiron 7386, Intel NUC7JYB
Date: Wed, 03 Jun 2020 16:17:56 +0000
Message-ID: <bug-207629-62941-fuFmreOLFB@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-207629-62941@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=207629

--- Comment #21 from Abhishek Pandit-Subedi (abhishekpandit@chromium.org) ---
re #19 - Chromium had an internal patch that was conditionally sending the
passive scanning command. After removing it, we were getting command
disallowed. This is very likely what you were seeing. There's a patch fixing
this on the mailing list now: https://patchwork.kernel.org/patch/11582831/

re #20 - You make a good point. A second problem I encountered with higher
usage of this code is that if the controller stops responding (i.e. it crashes)
and we can't reset it, it will also prevent suspend. This one is unacceptable.

Likely, the fix from Bluetooth end would be just to always allow suspend but
log an error here:
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/tree/net/bluetooth/hci_core.c#n3368

Expect a patch today on the mailing list with a fix for this.

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Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-207629-62941@https.bugzilla.kernel.org/>
2020-05-11  3:05 ` [Bug 207629] BISECTED Bluetooth: hci0: command 0x2042 tx timeout - suspend fails - Dell XPS 9300 bugzilla-daemon
2020-05-11  4:06 ` bugzilla-daemon
2020-05-11  4:59 ` bugzilla-daemon
2020-05-11 19:11 ` bugzilla-daemon
2020-05-12 16:00 ` bugzilla-daemon
2020-05-12 22:12 ` bugzilla-daemon
2020-05-13  4:00 ` bugzilla-daemon
2020-05-13  4:11 ` bugzilla-daemon
2020-05-13  4:56 ` bugzilla-daemon
2020-05-13 16:51 ` bugzilla-daemon
2020-05-13 21:55 ` [Bug 207629] BISECTED Bluetooth: hci0: command 0x2042 tx timeout - suspend fails - Dell XPS 9300, Dell XPS 7390, Dell Inspiron 7386, Intel NUC7JYB bugzilla-daemon
2020-05-13 22:59 ` bugzilla-daemon
2020-05-13 23:15 ` bugzilla-daemon
2020-05-14  1:47 ` bugzilla-daemon
2020-06-03 14:32 ` bugzilla-daemon
2020-06-03 14:37 ` bugzilla-daemon
2020-06-03 16:17 ` bugzilla-daemon [this message]
2020-06-04 14:53 ` bugzilla-daemon
2020-06-25 14:47 ` bugzilla-daemon
2020-06-25 14:53 ` bugzilla-daemon
2020-06-26 17:31 ` bugzilla-daemon

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