Linux-Bluetooth Archive on lore.kernel.org
 help / color / Atom feed
* [Bluez PATCH v3] audio/a2dp - fix crash during recovering process
@ 2020-01-10  7:57 howardchung
       [not found] ` <CAPHZWUd0LQrVrWa5jCG2skA8KOORxpBMRBKtYU+n23kVtx27JA@mail.gmail.com>
  0 siblings, 1 reply; 3+ messages in thread
From: howardchung @ 2020-01-10  7:57 UTC (permalink / raw)
  To: linux-bluetooth, luiz.von.dentz
  Cc: chromeos-bluetooth-upstreaming, howardchung

From: howardchung <howardchung@google.com>

The crash with stack trace:

(libc-2.27.so -raise.c:51 )      		raise
(libc-2.27.so -abort.c:79 )      		abort
(libc-2.27.so -libc_fatal.c:181 )        	__libc_message
(libc-2.27.so -malloc.c:5350 )   		malloc_printerr
(libc-2.27.so -malloc.c:4157 )   		_int_free
(libglib-2.0.so.0.5200.3 -gslist.c:878 )        g_slist_free_full
(bluetoothd -a2dp.c:165 )       		setup_unref
(bluetoothd -a2dp.c:2184 )      		a2dp_cancel
(bluetoothd -sink.c:317 )       		sink_unregister
(bluetoothd -service.c:176 )    		service_remove
(bluetoothd -device.c:4678 )    		device_remove
(bluetoothd -adapter.c:6573 )   		adapter_remove
(bluetoothd -adapter.c:8832 )   		index_removed
(bluetoothd -queue.c:220 )      		queue_foreach
(bluetoothd -mgmt.c:304 )       		can_read_data
(bluetoothd -io-glib.c:170 )    		watch_callback
(libglib-2.0.so.0.5200.3 -gmain.c:3234 )        g_main_context_dispatch
(libglib-2.0.so.0.5200.3 -gmain.c:3972 )        g_main_context_iterate
(libglib-2.0.so.0.5200.3 -gmain.c:4168 )        g_main_loop_run
(bluetoothd -main.c:798 )       		main
(libc-2.27.so -libc-start.c:308 )        	__libc_start_main
(bluetoothd + 0x0000b089 )      		_start
(bluetoothd + 0x0000b05f )      		_init

triggered when 'usb disconnect' happened during AVDTP_SET_CONFIGURATION
request is sent but haven't received the response.
In this situation, the recovering process goes into sink.c:sink_free and
then a2dp.c:a2dp_cancel, avdtp.c:cancel_request, avdtp.c:connection_lost,
avdtp.c:release_stream.

During recovering, the reference count of setup and avdtp decrease more
than it increase, which ends up causing the crash.

The reference count of setup decreases one more time since
a2dp.c:setconf_cfm(called by cfm->set_configuration in
avdtp.c:cancel_request) was called in the 'error mode', which didn't
reference the setup, but in a2dp.c:abort_cfm(called by cfm->abort in
avdtp.c:release_stream), the reference count decreased by 1.

In this case, abort_cfm shouldn't be called as we already know
setconf_cfm didn't send any request. Setting avdtp_sep_state to
AVDTP_STATE_ABORTING should avoid this issue.

The reference count of avdtp decrease one more time since
both sink.c:sink_free and sink.c:sink_set_state(called from
avdtp.c:connection_lost -> avdtp.c:avdtp_set_state) unreference avdtp
for the session. The changes in sink.c should avoid the issue.

---
How to test:
        The crash can be simulated by the following procedure.
        1. injecting sleep(10) right before calling a2dp_config in
           sink.c:select_complete.
        2. connect with a bluetooth headset
        3. run 'rmmod btusb' after ~5 seconds(before the connection
           complete)
The procedure can reproduce the crash with ~50% probability.
Even if the bluetoothd didn't crash or it crashed with different
signature, the reference count can end up with some invalid number.

After the patch applies, there is no crash after running the test above 10
times in a row.

Changes in v3:
- Update the title
- Remove the signed-off-by section

Changes in v2:
- Fixed typo in commit message

 profiles/audio/avdtp.c | 3 +++
 profiles/audio/sink.c  | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/profiles/audio/avdtp.c b/profiles/audio/avdtp.c
index 51ead684a..620a76c90 100644
--- a/profiles/audio/avdtp.c
+++ b/profiles/audio/avdtp.c
@@ -3484,6 +3484,7 @@ int avdtp_abort(struct avdtp *session, struct avdtp_stream *stream)
 {
 	struct seid_req req;
 	int ret;
+	struct avdtp_local_sep *sep = stream->lsep;
 
 	if (!stream && session->discover) {
 		/* Don't call cb since it being aborted */
@@ -3498,6 +3499,8 @@ int avdtp_abort(struct avdtp *session, struct avdtp_stream *stream)
 	if (stream->lsep->state == AVDTP_STATE_ABORTING)
 		return -EINVAL;
 
+	avdtp_sep_set_state(session, sep, AVDTP_STATE_ABORTING);
+
 	if (session->req && stream == session->req->stream)
 		return cancel_request(session, ECANCELED);
 
diff --git a/profiles/audio/sink.c b/profiles/audio/sink.c
index 7cac21034..726e2f562 100644
--- a/profiles/audio/sink.c
+++ b/profiles/audio/sink.c
@@ -309,8 +309,10 @@ static void sink_free(struct btd_service *service)
 		avdtp_stream_remove_cb(sink->session, sink->stream,
 					sink->cb_id);
 
-	if (sink->session)
+	if (sink->session) {
 		avdtp_unref(sink->session);
+		sink->session = NULL;
+	}
 
 	if (sink->connect_id > 0) {
 		btd_service_connecting_complete(sink->service, -ECANCELED);
-- 
2.25.0.rc1.283.g88dfdc4193-goog


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Bluez PATCH v3] audio/a2dp - fix crash during recovering process
       [not found] ` <CAPHZWUd0LQrVrWa5jCG2skA8KOORxpBMRBKtYU+n23kVtx27JA@mail.gmail.com>
@ 2020-01-10  8:12   ` Yun-hao Chung
  2020-01-10 23:54     ` Luiz Augusto von Dentz
  0 siblings, 1 reply; 3+ messages in thread
From: Yun-hao Chung @ 2020-01-10  8:12 UTC (permalink / raw)
  To: linux-bluetooth, luiz.von.dentz; +Cc: chromeos-bluetooth-upstreaming

Hi Luiz,

Thanks for the comment.
I did the qualification test with and without the patch on both Chrome
OS and Linux with bluez-5.52.
The results are all the same.
The tests I’ve run are as follows.

A2DP/SRC/AS/BV-01-I
A2DP/SRC/CC/BV-09-I
A2DP/SRC/CC/BV-10-I
A2DP/SRC/REL/BV-01-I
A2DP/SRC/REL/BV-02-I
A2DP/SRC/SET/BV-01-I
A2DP/SRC/SET/BV-02-I
A2DP/SRC/SET/BV-03-I
A2DP/SRC/SET/BV-04-I
A2DP/SRC/SET/BV-05-I
A2DP/SRC/SET/BV-06-I
IOPT/CL/A2DP-SRC/SFC/BV-01-I
AVDTP/SRC/ACP/SIG/SMG/BV-06-C
AVDTP/SRC/ACP/SIG/SMG/BV-08-C
AVDTP/SRC/ACP/SIG/SMG/BV-10-C
AVDTP/SRC/ACP/SIG/SMG/BV-16-C
AVDTP/SRC/ACP/SIG/SMG/BV-18-C
AVDTP/SRC/ACP/SIG/SMG/BV-20-C
AVDTP/SRC/ACP/SIG/SMG/BV-24-C
AVDTP/SRC/ACP/SIG/SMG/BI-05-C
AVDTP/SRC/ACP/SIG/SMG/BI-08-C
AVDTP/SRC/ACP/SIG/SMG/BI-17-C
AVDTP/SRC/ACP/SIG/SMG/BI-20-C
AVDTP/SRC/ACP/SIG/SMG/BI-23-C
AVDTP/SRC/ACP/SIG/SMG/BI-28-C*
AVDTP/SRC/ACP/TRA/BTR/BI-01-C
AVDTP/SRC/INT/SIG/SMG/BV-05-C
AVDTP/SRC/INT/SIG/SMG/BV-07-C
AVDTP/SRC/INT/SIG/SMG/BV-09-C
AVDTP/SRC/INT/SIG/SMG/BV-15-C
AVDTP/SRC/INT/SIG/SMG/BV-17-C
AVDTP/SRC/INT/SIG/SMG/BV-19-C
AVDTP/SRC/INT/SIG/SMG/BV-23-C
AVDTP/SRC/INT/SIG/SMG/BV-31-C
AVDTP/SRC/INT/SIG/SMG/BI-30-C
AVDTP/SRC/INT/TRA/BTR/BV-01-C

Except for AVDTP/SRC/ACP/SIG/SMG/BI-28-C, the other tests had been passed.
Please let me know if I need more verification.

Thanks,
Howard

On Fri, Jan 10, 2020 at 4:09 PM Yun-hao Chung <howardchung@google.com> wrote:
>
> ---------- Forwarded message ---------
> From: howardchung@google.com <howardchung@google.com>
> Date: Fri, Jan 10, 2020 at 3:57 PM
> Subject: [Bluez PATCH v3] audio/a2dp - fix crash during recovering process
> To: <linux-bluetooth@vger.kernel.org>, <luiz.von.dentz@intel.com>
> Cc: <chromeos-bluetooth-upstreaming@chromium.org>, howardchung
> <howardchung@google.com>
>
>
> From: howardchung <howardchung@google.com>
>
> The crash with stack trace:
>
> (libc-2.27.so -raise.c:51 )                     raise
> (libc-2.27.so -abort.c:79 )                     abort
> (libc-2.27.so -libc_fatal.c:181 )               __libc_message
> (libc-2.27.so -malloc.c:5350 )                  malloc_printerr
> (libc-2.27.so -malloc.c:4157 )                  _int_free
> (libglib-2.0.so.0.5200.3 -gslist.c:878 )        g_slist_free_full
> (bluetoothd -a2dp.c:165 )                       setup_unref
> (bluetoothd -a2dp.c:2184 )                      a2dp_cancel
> (bluetoothd -sink.c:317 )                       sink_unregister
> (bluetoothd -service.c:176 )                    service_remove
> (bluetoothd -device.c:4678 )                    device_remove
> (bluetoothd -adapter.c:6573 )                   adapter_remove
> (bluetoothd -adapter.c:8832 )                   index_removed
> (bluetoothd -queue.c:220 )                      queue_foreach
> (bluetoothd -mgmt.c:304 )                       can_read_data
> (bluetoothd -io-glib.c:170 )                    watch_callback
> (libglib-2.0.so.0.5200.3 -gmain.c:3234 )        g_main_context_dispatch
> (libglib-2.0.so.0.5200.3 -gmain.c:3972 )        g_main_context_iterate
> (libglib-2.0.so.0.5200.3 -gmain.c:4168 )        g_main_loop_run
> (bluetoothd -main.c:798 )                       main
> (libc-2.27.so -libc-start.c:308 )               __libc_start_main
> (bluetoothd + 0x0000b089 )                      _start
> (bluetoothd + 0x0000b05f )                      _init
>
> triggered when 'usb disconnect' happened during AVDTP_SET_CONFIGURATION
> request is sent but haven't received the response.
> In this situation, the recovering process goes into sink.c:sink_free and
> then a2dp.c:a2dp_cancel, avdtp.c:cancel_request, avdtp.c:connection_lost,
> avdtp.c:release_stream.
>
> During recovering, the reference count of setup and avdtp decrease more
> than it increase, which ends up causing the crash.
>
> The reference count of setup decreases one more time since
> a2dp.c:setconf_cfm(called by cfm->set_configuration in
> avdtp.c:cancel_request) was called in the 'error mode', which didn't
> reference the setup, but in a2dp.c:abort_cfm(called by cfm->abort in
> avdtp.c:release_stream), the reference count decreased by 1.
>
> In this case, abort_cfm shouldn't be called as we already know
> setconf_cfm didn't send any request. Setting avdtp_sep_state to
> AVDTP_STATE_ABORTING should avoid this issue.
>
> The reference count of avdtp decrease one more time since
> both sink.c:sink_free and sink.c:sink_set_state(called from
> avdtp.c:connection_lost -> avdtp.c:avdtp_set_state) unreference avdtp
> for the session. The changes in sink.c should avoid the issue.
>
> ---
> How to test:
>         The crash can be simulated by the following procedure.
>         1. injecting sleep(10) right before calling a2dp_config in
>            sink.c:select_complete.
>         2. connect with a bluetooth headset
>         3. run 'rmmod btusb' after ~5 seconds(before the connection
>            complete)
> The procedure can reproduce the crash with ~50% probability.
> Even if the bluetoothd didn't crash or it crashed with different
> signature, the reference count can end up with some invalid number.
>
> After the patch applies, there is no crash after running the test above 10
> times in a row.
>
> Changes in v3:
> - Update the title
> - Remove the signed-off-by section
>
> Changes in v2:
> - Fixed typo in commit message
>
>  profiles/audio/avdtp.c | 3 +++
>  profiles/audio/sink.c  | 4 +++-
>  2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/profiles/audio/avdtp.c b/profiles/audio/avdtp.c
> index 51ead684a..620a76c90 100644
> --- a/profiles/audio/avdtp.c
> +++ b/profiles/audio/avdtp.c
> @@ -3484,6 +3484,7 @@ int avdtp_abort(struct avdtp *session, struct
> avdtp_stream *stream)
>  {
>         struct seid_req req;
>         int ret;
> +       struct avdtp_local_sep *sep = stream->lsep;
>
>         if (!stream && session->discover) {
>                 /* Don't call cb since it being aborted */
> @@ -3498,6 +3499,8 @@ int avdtp_abort(struct avdtp *session, struct
> avdtp_stream *stream)
>         if (stream->lsep->state == AVDTP_STATE_ABORTING)
>                 return -EINVAL;
>
> +       avdtp_sep_set_state(session, sep, AVDTP_STATE_ABORTING);
> +
>         if (session->req && stream == session->req->stream)
>                 return cancel_request(session, ECANCELED);
>
> diff --git a/profiles/audio/sink.c b/profiles/audio/sink.c
> index 7cac21034..726e2f562 100644
> --- a/profiles/audio/sink.c
> +++ b/profiles/audio/sink.c
> @@ -309,8 +309,10 @@ static void sink_free(struct btd_service *service)
>                 avdtp_stream_remove_cb(sink->session, sink->stream,
>                                         sink->cb_id);
>
> -       if (sink->session)
> +       if (sink->session) {
>                 avdtp_unref(sink->session);
> +               sink->session = NULL;
> +       }
>
>         if (sink->connect_id > 0) {
>                 btd_service_connecting_complete(sink->service, -ECANCELED);
> --
> 2.25.0.rc1.283.g88dfdc4193-goog

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [Bluez PATCH v3] audio/a2dp - fix crash during recovering process
  2020-01-10  8:12   ` Yun-hao Chung
@ 2020-01-10 23:54     ` Luiz Augusto von Dentz
  0 siblings, 0 replies; 3+ messages in thread
From: Luiz Augusto von Dentz @ 2020-01-10 23:54 UTC (permalink / raw)
  To: Yun-hao Chung
  Cc: linux-bluetooth, Luiz Augusto Von Dentz, chromeos-bluetooth-upstreaming

Hi,

On Fri, Jan 10, 2020 at 12:13 AM Yun-hao Chung <howardchung@google.com> wrote:
>
> Hi Luiz,
>
> Thanks for the comment.
> I did the qualification test with and without the patch on both Chrome
> OS and Linux with bluez-5.52.
> The results are all the same.
> The tests I’ve run are as follows.
>
> A2DP/SRC/AS/BV-01-I
> A2DP/SRC/CC/BV-09-I
> A2DP/SRC/CC/BV-10-I
> A2DP/SRC/REL/BV-01-I
> A2DP/SRC/REL/BV-02-I
> A2DP/SRC/SET/BV-01-I
> A2DP/SRC/SET/BV-02-I
> A2DP/SRC/SET/BV-03-I
> A2DP/SRC/SET/BV-04-I
> A2DP/SRC/SET/BV-05-I
> A2DP/SRC/SET/BV-06-I
> IOPT/CL/A2DP-SRC/SFC/BV-01-I
> AVDTP/SRC/ACP/SIG/SMG/BV-06-C
> AVDTP/SRC/ACP/SIG/SMG/BV-08-C
> AVDTP/SRC/ACP/SIG/SMG/BV-10-C
> AVDTP/SRC/ACP/SIG/SMG/BV-16-C
> AVDTP/SRC/ACP/SIG/SMG/BV-18-C
> AVDTP/SRC/ACP/SIG/SMG/BV-20-C
> AVDTP/SRC/ACP/SIG/SMG/BV-24-C
> AVDTP/SRC/ACP/SIG/SMG/BI-05-C
> AVDTP/SRC/ACP/SIG/SMG/BI-08-C
> AVDTP/SRC/ACP/SIG/SMG/BI-17-C
> AVDTP/SRC/ACP/SIG/SMG/BI-20-C
> AVDTP/SRC/ACP/SIG/SMG/BI-23-C
> AVDTP/SRC/ACP/SIG/SMG/BI-28-C*
> AVDTP/SRC/ACP/TRA/BTR/BI-01-C
> AVDTP/SRC/INT/SIG/SMG/BV-05-C
> AVDTP/SRC/INT/SIG/SMG/BV-07-C
> AVDTP/SRC/INT/SIG/SMG/BV-09-C
> AVDTP/SRC/INT/SIG/SMG/BV-15-C
> AVDTP/SRC/INT/SIG/SMG/BV-17-C
> AVDTP/SRC/INT/SIG/SMG/BV-19-C
> AVDTP/SRC/INT/SIG/SMG/BV-23-C
> AVDTP/SRC/INT/SIG/SMG/BV-31-C
> AVDTP/SRC/INT/SIG/SMG/BI-30-C
> AVDTP/SRC/INT/TRA/BTR/BV-01-C
>
> Except for AVDTP/SRC/ACP/SIG/SMG/BI-28-C, the other tests had been passed.
> Please let me know if I need more verification.
>
> Thanks,
> Howard
>
> On Fri, Jan 10, 2020 at 4:09 PM Yun-hao Chung <howardchung@google.com> wrote:
> >
> > ---------- Forwarded message ---------
> > From: howardchung@google.com <howardchung@google.com>
> > Date: Fri, Jan 10, 2020 at 3:57 PM
> > Subject: [Bluez PATCH v3] audio/a2dp - fix crash during recovering process
> > To: <linux-bluetooth@vger.kernel.org>, <luiz.von.dentz@intel.com>
> > Cc: <chromeos-bluetooth-upstreaming@chromium.org>, howardchung
> > <howardchung@google.com>
> >
> >
> > From: howardchung <howardchung@google.com>
> >
> > The crash with stack trace:
> >
> > (libc-2.27.so -raise.c:51 )                     raise
> > (libc-2.27.so -abort.c:79 )                     abort
> > (libc-2.27.so -libc_fatal.c:181 )               __libc_message
> > (libc-2.27.so -malloc.c:5350 )                  malloc_printerr
> > (libc-2.27.so -malloc.c:4157 )                  _int_free
> > (libglib-2.0.so.0.5200.3 -gslist.c:878 )        g_slist_free_full
> > (bluetoothd -a2dp.c:165 )                       setup_unref
> > (bluetoothd -a2dp.c:2184 )                      a2dp_cancel
> > (bluetoothd -sink.c:317 )                       sink_unregister
> > (bluetoothd -service.c:176 )                    service_remove
> > (bluetoothd -device.c:4678 )                    device_remove
> > (bluetoothd -adapter.c:6573 )                   adapter_remove
> > (bluetoothd -adapter.c:8832 )                   index_removed
> > (bluetoothd -queue.c:220 )                      queue_foreach
> > (bluetoothd -mgmt.c:304 )                       can_read_data
> > (bluetoothd -io-glib.c:170 )                    watch_callback
> > (libglib-2.0.so.0.5200.3 -gmain.c:3234 )        g_main_context_dispatch
> > (libglib-2.0.so.0.5200.3 -gmain.c:3972 )        g_main_context_iterate
> > (libglib-2.0.so.0.5200.3 -gmain.c:4168 )        g_main_loop_run
> > (bluetoothd -main.c:798 )                       main
> > (libc-2.27.so -libc-start.c:308 )               __libc_start_main
> > (bluetoothd + 0x0000b089 )                      _start
> > (bluetoothd + 0x0000b05f )                      _init
> >
> > triggered when 'usb disconnect' happened during AVDTP_SET_CONFIGURATION
> > request is sent but haven't received the response.
> > In this situation, the recovering process goes into sink.c:sink_free and
> > then a2dp.c:a2dp_cancel, avdtp.c:cancel_request, avdtp.c:connection_lost,
> > avdtp.c:release_stream.
> >
> > During recovering, the reference count of setup and avdtp decrease more
> > than it increase, which ends up causing the crash.
> >
> > The reference count of setup decreases one more time since
> > a2dp.c:setconf_cfm(called by cfm->set_configuration in
> > avdtp.c:cancel_request) was called in the 'error mode', which didn't
> > reference the setup, but in a2dp.c:abort_cfm(called by cfm->abort in
> > avdtp.c:release_stream), the reference count decreased by 1.
> >
> > In this case, abort_cfm shouldn't be called as we already know
> > setconf_cfm didn't send any request. Setting avdtp_sep_state to
> > AVDTP_STATE_ABORTING should avoid this issue.
> >
> > The reference count of avdtp decrease one more time since
> > both sink.c:sink_free and sink.c:sink_set_state(called from
> > avdtp.c:connection_lost -> avdtp.c:avdtp_set_state) unreference avdtp
> > for the session. The changes in sink.c should avoid the issue.
> >
> > ---
> > How to test:
> >         The crash can be simulated by the following procedure.
> >         1. injecting sleep(10) right before calling a2dp_config in
> >            sink.c:select_complete.
> >         2. connect with a bluetooth headset
> >         3. run 'rmmod btusb' after ~5 seconds(before the connection
> >            complete)
> > The procedure can reproduce the crash with ~50% probability.
> > Even if the bluetoothd didn't crash or it crashed with different
> > signature, the reference count can end up with some invalid number.
> >
> > After the patch applies, there is no crash after running the test above 10
> > times in a row.
> >
> > Changes in v3:
> > - Update the title
> > - Remove the signed-off-by section
> >
> > Changes in v2:
> > - Fixed typo in commit message
> >
> >  profiles/audio/avdtp.c | 3 +++
> >  profiles/audio/sink.c  | 4 +++-
> >  2 files changed, 6 insertions(+), 1 deletion(-)
> >
> > diff --git a/profiles/audio/avdtp.c b/profiles/audio/avdtp.c
> > index 51ead684a..620a76c90 100644
> > --- a/profiles/audio/avdtp.c
> > +++ b/profiles/audio/avdtp.c
> > @@ -3484,6 +3484,7 @@ int avdtp_abort(struct avdtp *session, struct
> > avdtp_stream *stream)
> >  {
> >         struct seid_req req;
> >         int ret;
> > +       struct avdtp_local_sep *sep = stream->lsep;
> >
> >         if (!stream && session->discover) {
> >                 /* Don't call cb since it being aborted */
> > @@ -3498,6 +3499,8 @@ int avdtp_abort(struct avdtp *session, struct
> > avdtp_stream *stream)
> >         if (stream->lsep->state == AVDTP_STATE_ABORTING)
> >                 return -EINVAL;
> >
> > +       avdtp_sep_set_state(session, sep, AVDTP_STATE_ABORTING);
> > +
> >         if (session->req && stream == session->req->stream)
> >                 return cancel_request(session, ECANCELED);
> >
> > diff --git a/profiles/audio/sink.c b/profiles/audio/sink.c
> > index 7cac21034..726e2f562 100644
> > --- a/profiles/audio/sink.c
> > +++ b/profiles/audio/sink.c
> > @@ -309,8 +309,10 @@ static void sink_free(struct btd_service *service)
> >                 avdtp_stream_remove_cb(sink->session, sink->stream,
> >                                         sink->cb_id);
> >
> > -       if (sink->session)
> > +       if (sink->session) {
> >                 avdtp_unref(sink->session);
> > +               sink->session = NULL;
> > +       }
> >
> >         if (sink->connect_id > 0) {
> >                 btd_service_connecting_complete(sink->service, -ECANCELED);
> > --
> > 2.25.0.rc1.283.g88dfdc4193-goog


Applied, thanks.

-- 
Luiz Augusto von Dentz

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, back to index

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-10  7:57 [Bluez PATCH v3] audio/a2dp - fix crash during recovering process howardchung
     [not found] ` <CAPHZWUd0LQrVrWa5jCG2skA8KOORxpBMRBKtYU+n23kVtx27JA@mail.gmail.com>
2020-01-10  8:12   ` Yun-hao Chung
2020-01-10 23:54     ` Luiz Augusto von Dentz

Linux-Bluetooth Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-bluetooth/0 linux-bluetooth/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-bluetooth linux-bluetooth/ https://lore.kernel.org/linux-bluetooth \
		linux-bluetooth@vger.kernel.org
	public-inbox-index linux-bluetooth

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-bluetooth


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git