* regression: Bluetooth interface broken on systems with Mediatek CPU
@ 2021-08-06 22:21 Guenter Roeck
2021-08-09 2:35 ` Kai-Heng Feng
2021-08-09 13:26 ` Marcel Holtmann
0 siblings, 2 replies; 6+ messages in thread
From: Guenter Roeck @ 2021-08-06 22:21 UTC (permalink / raw)
To: regressions; +Cc: stable, Greg Kroah-Hartman, Kai-Heng Feng, Marcel Holtmann
[ Greg asked me to submit a report to regressions@, so here it is. ]
The following error was observed on Chromebooks with MT8183 CPU
(ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
[ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
[ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
[ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
[ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
[ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
[ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
[ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
[ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
...
[ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
[ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
(repeated several times)
...
The Bluetooth interface on those Chromebooks can not be enabled.
Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
controller after workqueues are flushed or cancelled") introduced the problem.
Reverting it fixes the problem.
The problem was also reported at [1] on a Mediatek Pumpkin board.
As of this writing, the problem is still present in the upstream kernel
as well as in all stable releases which include commit 0ea9fd001a14.
Thanks,
Guenter
---
[1] https://lkml.org/lkml/2021/7/28/569
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: regression: Bluetooth interface broken on systems with Mediatek CPU
2021-08-06 22:21 regression: Bluetooth interface broken on systems with Mediatek CPU Guenter Roeck
@ 2021-08-09 2:35 ` Kai-Heng Feng
2021-08-09 4:10 ` Guenter Roeck
2021-08-09 13:26 ` Marcel Holtmann
1 sibling, 1 reply; 6+ messages in thread
From: Kai-Heng Feng @ 2021-08-09 2:35 UTC (permalink / raw)
To: Guenter Roeck; +Cc: regressions, stable, Greg Kroah-Hartman, Marcel Holtmann
On Sat, Aug 7, 2021 at 6:22 AM Guenter Roeck <linux@roeck-us.net> wrote:
>
> [ Greg asked me to submit a report to regressions@, so here it is. ]
>
> The following error was observed on Chromebooks with MT8183 CPU
> (ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
>
> [ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
> [ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
> [ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
> [ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
> [ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
> [ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
> [ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
> [ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
> ...
> [ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> [ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> (repeated several times)
> ...
>
> The Bluetooth interface on those Chromebooks can not be enabled.
>
> Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
> controller after workqueues are flushed or cancelled") introduced the problem.
> Reverting it fixes the problem.
>
> The problem was also reported at [1] on a Mediatek Pumpkin board.
>
> As of this writing, the problem is still present in the upstream kernel
> as well as in all stable releases which include commit 0ea9fd001a14.
Thanks. Can you please test the following patch:
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2560ed2f144d4..131e69a9a66a0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1757,6 +1757,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
cancel_delayed_work_sync(&adv_instance->rpa_expired_cb);
}
+ if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
+ !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
+ test_bit(HCI_UP, &hdev->flags)) {
+ /* Execute vendor specific shutdown routine */
+ if (hdev->shutdown)
+ hdev->shutdown(hdev);
+ }
+
/* Avoid potential lockdep warnings from the *_flush() calls by
* ensuring the workqueue is empty up front.
*/
@@ -1798,14 +1806,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
clear_bit(HCI_INIT, &hdev->flags);
}
- if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
- !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
- test_bit(HCI_UP, &hdev->flags)) {
- /* Execute vendor specific shutdown routine */
- if (hdev->shutdown)
- hdev->shutdown(hdev);
- }
-
/* flush cmd work */
flush_work(&hdev->cmd_work);
>
> Thanks,
> Guenter
>
> ---
> [1] https://lkml.org/lkml/2021/7/28/569
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: regression: Bluetooth interface broken on systems with Mediatek CPU
2021-08-09 2:35 ` Kai-Heng Feng
@ 2021-08-09 4:10 ` Guenter Roeck
2021-08-09 4:48 ` Kai-Heng Feng
0 siblings, 1 reply; 6+ messages in thread
From: Guenter Roeck @ 2021-08-09 4:10 UTC (permalink / raw)
To: Kai-Heng Feng; +Cc: regressions, stable, Greg Kroah-Hartman, Marcel Holtmann
On Mon, Aug 09, 2021 at 10:35:34AM +0800, Kai-Heng Feng wrote:
> On Sat, Aug 7, 2021 at 6:22 AM Guenter Roeck <linux@roeck-us.net> wrote:
> >
> > [ Greg asked me to submit a report to regressions@, so here it is. ]
> >
> > The following error was observed on Chromebooks with MT8183 CPU
> > (ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
> >
> > [ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
> > [ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
> > [ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
> > [ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
> > [ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
> > [ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
> > [ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
> > [ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
> > ...
> > [ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > [ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > (repeated several times)
> > ...
> >
> > The Bluetooth interface on those Chromebooks can not be enabled.
> >
> > Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
> > controller after workqueues are flushed or cancelled") introduced the problem.
> > Reverting it fixes the problem.
> >
> > The problem was also reported at [1] on a Mediatek Pumpkin board.
> >
> > As of this writing, the problem is still present in the upstream kernel
> > as well as in all stable releases which include commit 0ea9fd001a14.
>
> Thanks. Can you please test the following patch:
>
I would love to, but I am unable to apply the patch. It failed to apply
to mainline, to linux-next, and to all stable releases I tried.
Guenter
> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> index 2560ed2f144d4..131e69a9a66a0 100644
> --- a/net/bluetooth/hci_core.c
> +++ b/net/bluetooth/hci_core.c
> @@ -1757,6 +1757,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
> cancel_delayed_work_sync(&adv_instance->rpa_expired_cb);
> }
>
> + if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> + !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> + test_bit(HCI_UP, &hdev->flags)) {
> + /* Execute vendor specific shutdown routine */
> + if (hdev->shutdown)
> + hdev->shutdown(hdev);
> + }
> +
> /* Avoid potential lockdep warnings from the *_flush() calls by
> * ensuring the workqueue is empty up front.
> */
> @@ -1798,14 +1806,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
> clear_bit(HCI_INIT, &hdev->flags);
> }
>
> - if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> - !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> - test_bit(HCI_UP, &hdev->flags)) {
> - /* Execute vendor specific shutdown routine */
> - if (hdev->shutdown)
> - hdev->shutdown(hdev);
> - }
> -
> /* flush cmd work */
> flush_work(&hdev->cmd_work);
>
>
> >
> > Thanks,
> > Guenter
> >
> > ---
> > [1] https://lkml.org/lkml/2021/7/28/569
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: regression: Bluetooth interface broken on systems with Mediatek CPU
2021-08-09 4:10 ` Guenter Roeck
@ 2021-08-09 4:48 ` Kai-Heng Feng
2021-08-09 19:18 ` Guenter Roeck
0 siblings, 1 reply; 6+ messages in thread
From: Kai-Heng Feng @ 2021-08-09 4:48 UTC (permalink / raw)
To: Guenter Roeck; +Cc: regressions, stable, Greg Kroah-Hartman, Marcel Holtmann
Hi Guenter,
On Mon, Aug 9, 2021 at 12:10 PM Guenter Roeck <linux@roeck-us.net> wrote:
>
> On Mon, Aug 09, 2021 at 10:35:34AM +0800, Kai-Heng Feng wrote:
> > On Sat, Aug 7, 2021 at 6:22 AM Guenter Roeck <linux@roeck-us.net> wrote:
> > >
> > > [ Greg asked me to submit a report to regressions@, so here it is. ]
> > >
> > > The following error was observed on Chromebooks with MT8183 CPU
> > > (ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
> > >
> > > [ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
> > > [ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
> > > [ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
> > > [ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
> > > [ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
> > > [ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
> > > [ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
> > > [ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
> > > ...
> > > [ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > > [ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > > (repeated several times)
> > > ...
> > >
> > > The Bluetooth interface on those Chromebooks can not be enabled.
> > >
> > > Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
> > > controller after workqueues are flushed or cancelled") introduced the problem.
> > > Reverting it fixes the problem.
> > >
> > > The problem was also reported at [1] on a Mediatek Pumpkin board.
> > >
> > > As of this writing, the problem is still present in the upstream kernel
> > > as well as in all stable releases which include commit 0ea9fd001a14.
> >
> > Thanks. Can you please test the following patch:
> >
> I would love to, but I am unable to apply the patch. It failed to apply
> to mainline, to linux-next, and to all stable releases I tried.
I think it has something to do with how the code gets pasted to the mail client.
So can you please give this a try:
https://paste.ubuntu.com/p/CsRrQWNYKr/
Kai-Heng
>
> Guenter
>
> > diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> > index 2560ed2f144d4..131e69a9a66a0 100644
> > --- a/net/bluetooth/hci_core.c
> > +++ b/net/bluetooth/hci_core.c
> > @@ -1757,6 +1757,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
> > cancel_delayed_work_sync(&adv_instance->rpa_expired_cb);
> > }
> >
> > + if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> > + !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> > + test_bit(HCI_UP, &hdev->flags)) {
> > + /* Execute vendor specific shutdown routine */
> > + if (hdev->shutdown)
> > + hdev->shutdown(hdev);
> > + }
> > +
> > /* Avoid potential lockdep warnings from the *_flush() calls by
> > * ensuring the workqueue is empty up front.
> > */
> > @@ -1798,14 +1806,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
> > clear_bit(HCI_INIT, &hdev->flags);
> > }
> >
> > - if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> > - !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> > - test_bit(HCI_UP, &hdev->flags)) {
> > - /* Execute vendor specific shutdown routine */
> > - if (hdev->shutdown)
> > - hdev->shutdown(hdev);
> > - }
> > -
> > /* flush cmd work */
> > flush_work(&hdev->cmd_work);
> >
> >
> > >
> > > Thanks,
> > > Guenter
> > >
> > > ---
> > > [1] https://lkml.org/lkml/2021/7/28/569
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: regression: Bluetooth interface broken on systems with Mediatek CPU
2021-08-06 22:21 regression: Bluetooth interface broken on systems with Mediatek CPU Guenter Roeck
2021-08-09 2:35 ` Kai-Heng Feng
@ 2021-08-09 13:26 ` Marcel Holtmann
1 sibling, 0 replies; 6+ messages in thread
From: Marcel Holtmann @ 2021-08-09 13:26 UTC (permalink / raw)
To: Guenter Roeck; +Cc: regressions, stable, Greg Kroah-Hartman, Kai-Heng Feng
Hi Guenter,
> [ Greg asked me to submit a report to regressions@, so here it is. ]
>
> The following error was observed on Chromebooks with MT8183 CPU
> (ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
>
> [ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
> [ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
> [ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
> [ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
> [ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
> [ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
> [ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
> [ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
> ...
> [ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> [ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> (repeated several times)
> ...
>
> The Bluetooth interface on those Chromebooks can not be enabled.
>
> Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
> controller after workqueues are flushed or cancelled") introduced the problem.
> Reverting it fixes the problem.
>
> The problem was also reported at [1] on a Mediatek Pumpkin board.
>
> As of this writing, the problem is still present in the upstream kernel
> as well as in all stable releases which include commit 0ea9fd001a14.
post it to the linux-bluetooth@vger mailing list. This is Qualcomm driver
specific and maybe they broke something. However there is an ongoing
discussion about your bi-sected commit regarding Mediatek Bluetooth device
where this seems to also have caused a problem.
Regards
Marcel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: regression: Bluetooth interface broken on systems with Mediatek CPU
2021-08-09 4:48 ` Kai-Heng Feng
@ 2021-08-09 19:18 ` Guenter Roeck
0 siblings, 0 replies; 6+ messages in thread
From: Guenter Roeck @ 2021-08-09 19:18 UTC (permalink / raw)
To: Kai-Heng Feng; +Cc: regressions, stable, Greg Kroah-Hartman, Marcel Holtmann
On Mon, Aug 09, 2021 at 12:48:16PM +0800, Kai-Heng Feng wrote:
> Hi Guenter,
>
> On Mon, Aug 9, 2021 at 12:10 PM Guenter Roeck <linux@roeck-us.net> wrote:
> >
> > On Mon, Aug 09, 2021 at 10:35:34AM +0800, Kai-Heng Feng wrote:
> > > On Sat, Aug 7, 2021 at 6:22 AM Guenter Roeck <linux@roeck-us.net> wrote:
> > > >
> > > > [ Greg asked me to submit a report to regressions@, so here it is. ]
> > > >
> > > > The following error was observed on Chromebooks with MT8183 CPU
> > > > (ASUS Chromebook Detachable CM3, HP Chromebook 11a, and others):
> > > >
> > > > [ 224.735198] Bluetooth: qca_setup() hci0: setting up ROME/QCA6390
> > > > [ 225.205024] Bluetooth: qca_read_soc_version() hci0: QCA Product ID :0x00000008
> > > > [ 225.205040] Bluetooth: qca_read_soc_version() hci0: QCA SOC Version :0x00000044
> > > > [ 225.205045] Bluetooth: qca_read_soc_version() hci0: QCA ROM Version :0x00000302
> > > > [ 225.205049] Bluetooth: qca_read_soc_version() hci0: QCA Patch Version:0x000003e8
> > > > [ 225.205055] Bluetooth: qca_uart_setup() hci0: QCA controller version 0x00440302
> > > > [ 225.205061] Bluetooth: qca_download_firmware() hci0: QCA Downloading qca/rampatch_00440302.bin
> > > > [ 227.252653] Bluetooth: hci_cmd_timeout() hci0: command 0xfc00 tx timeout
> > > > ...
> > > > [ 223.604971] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > > > [ 223.605027] Bluetooth: qca_recv() hci0: Frame reassembly failed (-84)
> > > > (repeated several times)
> > > > ...
> > > >
> > > > The Bluetooth interface on those Chromebooks can not be enabled.
> > > >
> > > > Bisect suggests that upstream commit 0ea9fd001a14 ("Bluetooth: Shutdown
> > > > controller after workqueues are flushed or cancelled") introduced the problem.
> > > > Reverting it fixes the problem.
> > > >
> > > > The problem was also reported at [1] on a Mediatek Pumpkin board.
> > > >
> > > > As of this writing, the problem is still present in the upstream kernel
> > > > as well as in all stable releases which include commit 0ea9fd001a14.
> > >
> > > Thanks. Can you please test the following patch:
> > >
> > I would love to, but I am unable to apply the patch. It failed to apply
> > to mainline, to linux-next, and to all stable releases I tried.
>
> I think it has something to do with how the code gets pasted to the mail client.
> So can you please give this a try:
> https://paste.ubuntu.com/p/CsRrQWNYKr/
>
That is different to the patch you just submitted. I assume that patch is
the final version. I assume that is the final version. Since it was already
tested, I'll stop testing this one.
Guenter
> Kai-Heng
>
> >
> > Guenter
> >
> > > diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
> > > index 2560ed2f144d4..131e69a9a66a0 100644
> > > --- a/net/bluetooth/hci_core.c
> > > +++ b/net/bluetooth/hci_core.c
> > > @@ -1757,6 +1757,14 @@ int hci_dev_do_close(struct hci_dev *hdev)
> > > cancel_delayed_work_sync(&adv_instance->rpa_expired_cb);
> > > }
> > >
> > > + if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> > > + !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> > > + test_bit(HCI_UP, &hdev->flags)) {
> > > + /* Execute vendor specific shutdown routine */
> > > + if (hdev->shutdown)
> > > + hdev->shutdown(hdev);
> > > + }
> > > +
> > > /* Avoid potential lockdep warnings from the *_flush() calls by
> > > * ensuring the workqueue is empty up front.
> > > */
> > > @@ -1798,14 +1806,6 @@ int hci_dev_do_close(struct hci_dev *hdev)
> > > clear_bit(HCI_INIT, &hdev->flags);
> > > }
> > >
> > > - if (!hci_dev_test_flag(hdev, HCI_UNREGISTER) &&
> > > - !hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
> > > - test_bit(HCI_UP, &hdev->flags)) {
> > > - /* Execute vendor specific shutdown routine */
> > > - if (hdev->shutdown)
> > > - hdev->shutdown(hdev);
> > > - }
> > > -
> > > /* flush cmd work */
> > > flush_work(&hdev->cmd_work);
> > >
> > >
> > > >
> > > > Thanks,
> > > > Guenter
> > > >
> > > > ---
> > > > [1] https://lkml.org/lkml/2021/7/28/569
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-08-09 19:18 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-06 22:21 regression: Bluetooth interface broken on systems with Mediatek CPU Guenter Roeck
2021-08-09 2:35 ` Kai-Heng Feng
2021-08-09 4:10 ` Guenter Roeck
2021-08-09 4:48 ` Kai-Heng Feng
2021-08-09 19:18 ` Guenter Roeck
2021-08-09 13:26 ` Marcel Holtmann
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