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Message-ID: <515afcfb-6c33-446d-960b-07d9d23f7c24@penguintechs.org>
Date: Tue, 9 Apr 2024 13:02:40 -0700
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Subject: Re: QCA6390 bluetooth doesn't work after warm boot or
 disable/reenable
Content-Language: en-US
From: Wren Turkal <wt@penguintechs.org>
To: ath11k@lists.infradead.org, linux-bluetooth@vger.kernel.org,
 Kalle Valo <kvalo@kernel.org>, Marcel Holtmann <marcel@holtmann.org>,
 Luiz Augusto von Dentz <luiz.dentz@gmail.com>
References: <a03dace1-ca0f-41d6-8e2c-636e3b053a3a@penguintechs.org>
 <31bb6e18-ecee-49b3-87d7-50ab53e07447@penguintechs.org>
 <1b3d3937-6679-491e-a5c6-818ae8ac639a@penguintechs.org>
 <b592d037-41ed-42e8-8c3c-286eb1a68ceb@penguintechs.org>
 <68a31d6a-8eb8-4d78-819b-fb67367cc41d@penguintechs.org>
In-Reply-To: <68a31d6a-8eb8-4d78-819b-fb67367cc41d@penguintechs.org>
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On 4/9/24 12:53 PM, Wren Turkal wrote:
> On 4/8/24 12:49 PM, Wren Turkal wrote:
>> +Marcel Holtmann <marcel@holtmann.org>
>> +Luiz Augusto von Dentz <luiz.dentz@gmail.com>
>>
>> Added maintainers identified from the get_maintainer.pl script in the 
>> kernel repo. Hoping to get some ideas for next steps.
>>
>> More contextual info below:
>>
>> On 4/6/24 1:27 PM, Wren Turkal wrote:
>>> +Kalle Valo since you have the same laptop
>>>
>>> On 4/6/24 1:16 PM, Wren Turkal wrote:
>>>> Sorry for the double send on the original message. I am still hoping 
>>>> to get some help. I have added additional info below.
>>>>
>>>> On 4/4/24 12:14 PM, Wren Turkal wrote:
>>>>> Hey there ath11k/bluetooth folks,
>>>>>
>>>>> I am having a pretty major problem with QCA6930 for some time 
>>>>> (maybe a year or two). I have this bluetooth device:
>>>>>
>>>>> 72:00.0 Unassigned class [ff00]: Qualcomm Technologies, Inc QCA6390 
>>>>> Wireless Network Adapter
>>>>>
>>>>> This device appears to be driven by the ath11k module and others. I 
>>>>> hope I am pinging the right lists.
>>>>>
>>>>> I am using Fedora Rawhide. Fully updated yesterday. My uname 
>>>>> reports this:
>>>>>
>>>>> Linux braindead.localdomain 
>>>>> 6.9.0-0.rc2.20240402git026e680b0a08.24.fc41.x86_64 #1 SMP 
>>>>> PREEMPT_DYNAMIC Tue Apr  2 17:51:18 UTC 2024 x86_64 GNU/Linux
>>>>
>>>> Updated today. Here's the new uname:
>>>>
>>>> Linux braindead.localdomain 
>>>> 6.9.0-0.rc2.20240405git8cb4a9a82b21.27.fc41.x86_64 #1 SMP 
>>>> PREEMPT_DYNAMIC Fri Apr  5 16:48:07 UTC 2024 x86_64 GNU/Linux
>>
>> I looked at the current mainline kernel code. I found the following.
>>
>> I found that there was a patch authored by Zijun Hu that was supposed 
>> to address a warm reboot issue on QCA6390 here: 
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/bluetooth/hci_qca.c?h=v6.9-rc3&id=7e7bbddd029b644f00f0ffbfbc485ed71977d0d5
>>
>> The same code path from the above patch is now slightly different 
>> because another patch authored by Krzysztof Kozlowski, namely: 
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/bluetooth/hci_qca.c?h=v6.9-rc3&id=272970be3dabd24cbe50e393ffee8f04aec3b9a8
>>
>> I also see a few fixed over time in the btqca.c file. I wonder if any 
>> of these are related.
>>
>> Unfortunately, none of these changes were made recently.
>>
>> Does anyone have an suggestions for next steps?
> 
> I am trying to build kernels as old as 5.19 to start a bisect. I have 
> been unsuccessful due to compiler warnings (presumably from newer 
> version of gcc than were used at the time those kernels were released. 
> Is there any secret sauce to getting these older kernels to build with 
> newer gccs?

Specifically, I am getting this message when trying to build bzImage:
ld: warning: vmlinux has a LOAD segment with RWX permissions

Is there any way to allow the build despite that issue so that I can 
just see if the kernel version can drive the bluetooth hardware correctly?

>>>>
>>>> I also noticed a new version of bluez. Here is the RPM package 
>>>> version: bluez-5.73-3.fc41.x86_64
>>>>
>>>>> My main bluetooth device is  a Logitech MX 3 Mac mouse that uses 
>>>>> bluetooth. When bluetooth fails, so does the mouse. I have power 
>>>>> cycle my laptop when that happens. I'd love to help find a fix for 
>>>>> this.
>>>>>
>>>>> The problem is that I cannot disable and re-enable the bluetooth on 
>>>>> my system. Bluetooth also doesn't work after a warm boot. I have to 
>>>>> power cycle my laptop to recover bluetooth funcitonality. I have 
>>>>> tried the following:
>>>>>
>>>>> * logging into KDE Plasma (bluetooth stops working)
>>>>> * logging into GNOME (works on cold boot, fails on warm boot)
>>>>
>>>> I did notice that the mouse seems to work in Plasma until a few sec 
>>>> after I see the background image appears. I suspect that Plasma is 
>>>> disabling and reenabling the bluetooth where Gnome does not do that.
>>>>
>>>>> After logging into GNOME during a cold boot, I have also done 
>>>>> "systemctl restart bluetooth.service". I get these journal logs 
>>>>> during the stop;
>>>>>
>>>>> ➜  bt_kernel_bug cat journal-stop-bluetooth-service.log
>>>>> Apr 04 10:14:41 braindead.localdomain NetworkManager[1120]: <info> 
>>>>> [1712250881.7060] device (F0:5C:77:F2:60:FC): state change: 
>>>>> disconnected -> unmanaged (reason 'removed', sys-iface-state: 
>>>>> 'removed')
>>>>> Apr 04 10:14:41 braindead.localdomain systemd[1]: Starting 
>>>>> systemd-rfkill.service - Load/Save RF Kill Switch Status...
>>>>> Apr 04 10:14:41 braindead.localdomain systemd[1]: Started 
>>>>> systemd-rfkill.service - Load/Save RF Kill Switch Status.
>>>>> Apr 04 10:14:41 braindead.localdomain audit[1]: SERVICE_START pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=systemd-rfkill 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>> Apr 04 10:14:46 braindead.localdomain systemd[1]: 
>>>>> systemd-rfkill.service: Deactivated successfully.
>>>>> Apr 04 10:14:46 braindead.localdomain audit[1]: SERVICE_STOP pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=systemd-rfkill 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>>
>>>>> I get these journal logs during start:
>>>>>
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> setting up ROME/QCA6390
>>>>> Apr 04 10:15:05 braindead.localdomain systemd[1]: Starting 
>>>>> systemd-rfkill.service - Load/Save RF Kill Switch Status...
>>>>> Apr 04 10:15:05 braindead.localdomain systemd[1]: Started 
>>>>> systemd-rfkill.service - Load/Save RF Kill Switch Status.
>>>>> Apr 04 10:15:05 braindead.localdomain audit[1]: SERVICE_START pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=systemd-rfkill 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Product ID   :0x00000010
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> SOC Version  :0x400a0200
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> ROM Version  :0x00000200
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Patch Version:0x00003ac0
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> controller version 0x02000200
>>>>> Apr 04 10:15:05 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Downloading qca/htbtfw20.tlv
>>>>> Apr 04 10:15:06 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Failed to send TLV segment (-110)
>>>>> Apr 04 10:15:06 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Failed to download patch (-110)
>>>>> Apr 04 10:15:06 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Retry BT power ON:0
>>>>> Apr 04 10:15:08 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> command 0xfc00 tx timeout
>>>>> Apr 04 10:15:08 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Reading QCA version information failed (-110)
>>>>> Apr 04 10:15:08 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Retry BT power ON:1
>>>>> Apr 04 10:15:10 braindead.localdomain systemd[1]: 
>>>>> systemd-rfkill.service: Deactivated successfully.
>>>>> Apr 04 10:15:10 braindead.localdomain audit[1]: SERVICE_STOP pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=systemd-rfkill 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>> Apr 04 10:15:10 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> command 0xfc00 tx timeout
>>>>> Apr 04 10:15:10 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Reading QCA version information failed (-110)
>>>>> Apr 04 10:15:10 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Retry BT power ON:2
>>>>> Apr 04 10:15:13 braindead.localdomain bluetoothd[986]: Failed to 
>>>>> set mode: Authentication Failed (0x05)
>>>>> Apr 04 10:15:13 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> command 0xfc00 tx timeout
>>>>> Apr 04 10:15:13 braindead.localdomain kernel: Bluetooth: hci0: 
>>>>> Reading QCA version information failed (-110)
>>>>> Apr 04 10:15:15 braindead.localdomain chronyd[1065]: Selected 
>>>>> source 204.17.205.8 (2.fedora.pool.ntp.org)
>>>>> Apr 04 10:15:22 braindead.localdomain systemd[1687]: Created slice 
>>>>> background.slice - User Background Tasks Slice.
>>>>> Apr 04 10:15:22 braindead.localdomain systemd[1687]: Starting 
>>>>> systemd-tmpfiles-clean.service - Cleanup of User's Temporary Files 
>>>>> and Directories...
>>>>> Apr 04 10:15:22 braindead.localdomain systemd[1687]: Finished 
>>>>> systemd-tmpfiles-clean.service - Cleanup of User's Temporary Files 
>>>>> and Directories.
>>>>> Apr 04 10:15:38 braindead.localdomain audit: BPF prog-id=86 op=LOAD
>>>>> Apr 04 10:15:38 braindead.localdomain systemd[1]: Starting 
>>>>> plocate-updatedb.service - Update the plocate database...
>>>>> Apr 04 10:15:41 braindead.localdomain systemd[1687]: Started 
>>>>> vte-spawn-21527424-cb2d-479f-af17-22251e2b37a0.scope - VTE child 
>>>>> process 5144 launched by gnome-terminal-server process 4668.
>>>>> Apr 04 10:15:53 braindead.localdomain systemd[1]: 
>>>>> plocate-updatedb.service: Deactivated successfully.
>>>>> Apr 04 10:15:53 braindead.localdomain systemd[1]: Finished 
>>>>> plocate-updatedb.service - Update the plocate database.
>>>>> Apr 04 10:15:53 braindead.localdomain systemd[1]: 
>>>>> plocate-updatedb.service: Consumed 6.802s CPU time.
>>>>> Apr 04 10:15:53 braindead.localdomain audit[1]: SERVICE_START pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=plocate-updatedb 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>> Apr 04 10:15:53 braindead.localdomain audit[1]: SERVICE_STOP pid=1 
>>>>> uid=0 auid=4294967295 ses=4294967295 
>>>>> subj=system_u:system_r:init_t:s0 msg='unit=plocate-updatedb 
>>>>> comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? 
>>>>> terminal=? res=success'
>>>>> Apr 04 10:15:54 braindead.localdomain audit: BPF prog-id=86 op=UNLOAD
>>>>> Apr 04 10:16:13 braindead.localdomain baloo_file_extractor[5251]: 
>>>>> kf.idletime: Could not find any system poller plugin
>>>>> Apr 04 10:16:13 braindead.localdomain baloo_file_extractor[5251]: 
>>>>> qt.core.qobject.connect: QObject::connect(KAbstractIdleTimePoller, 
>>>>> KIdleTime): invalid nullptr parameter
>>>>> Apr 04 10:16:13 braindead.localdomain baloo_file_extractor[5251]: 
>>>>> qt.core.qobject.connect: QObject::connect(KAbstractIdleTimePoller, 
>>>>> KIdleTime): invalid nullptr parameter
>>>>>
>>>>> There's a bunch of errors in those logs starting with these two 
>>>>> seemingly important lines:
>>>>>
>>>>> Apr 04 10:15:06 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Failed to send TLV segment (-110)
>>>>> Apr 04 10:15:06 braindead.localdomain kernel: Bluetooth: hci0: QCA 
>>>>> Failed to download patch (-110)
>>>>
>>>> Logs are mostly unchanges when restarting the bluetooth service 
>>>> after a cold boot with the bluetooth originally working.
>>>>
>>>>> FWIW, I get similar logs after logging into KDE Plasma. I also get 
>>>>> similar logs after a warm boot.
>>>>>
>>>>> This appears to be some kind of bug in the initialization of the 
>>>>> hardware. Is there any additional information I can provide to help 
>>>>> troubleshoot this problem.
>>>>
>>>> I will also say that the bluetooth appears to work throught a 
>>>> suspend/resume cycle as long as I don't restart the bluetooth service.
>>>>
>>>> Oh, and my laptop is a Dell 9310 if that helps.
>>>
>>> Kalle, I noticed that you reported having a Dell 9310 in 2021 in a 
>>> message on this very mailing list. Do you happen to still have that 
>>> laptop? If so, so you still test on that laptop at all? I am curious 
>>> if it is having the same issue I am experiencing?
>>>
>>>> Is there any other info I could collect that might be useful?
>>>>
>>>> I'm pretty new to troubleshooting a problem like this and would be 
>>>> happy to have any advice anyone might want to share.
>>>>
>>>> Thanks,
>>>> wt
>>>>
>>>
>>
> 

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