From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F30BC0044C for ; Mon, 29 Oct 2018 20:05:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F5FB2080A for ; Mon, 29 Oct 2018 20:05:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="pKKkyYdJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1F5FB2080A Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729530AbeJ3EzZ (ORCPT ); Tue, 30 Oct 2018 00:55:25 -0400 Received: from mail-it1-f194.google.com ([209.85.166.194]:36857 "EHLO mail-it1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726196AbeJ3EzZ (ORCPT ); Tue, 30 Oct 2018 00:55:25 -0400 Received: by mail-it1-f194.google.com with SMTP id t4-v6so2713368itf.1 for ; Mon, 29 Oct 2018 13:05:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=pvL59RctKBqyLPqNK4pysbo/SwFKLUJm+rFY9TlCTrQ=; b=pKKkyYdJhfSRn0V6/h5GLdjbkWVlUnppDumCBBz+FZu7pkRQBcEqecC+DBiRAiP521 +ym0egsm7ecY3SVukY2HEjo7sDd8rrbGVrWJ4fmZohGrw+T5iNeT07rTEitQ0UQ0/95v PDiH4YduKlug3SJfaV1cMf1VjsZ/mij4vsd1K82ltWjh8LqnsTuDQ47qPrB6BVk6SZ42 jmKFKpHVZEATtA5H6rukihBiBK8q/xtjlqpwz0+cvT1RXGv5w/2AEzkAGOAIgpLsCd+d +zodKOUeoYa1i8n60ATPGujXeqHVbZZoankEhivPHh7b96YGjAI9g7fixblNQfLCoKpY j2NA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=pvL59RctKBqyLPqNK4pysbo/SwFKLUJm+rFY9TlCTrQ=; b=Z98Dh5DaE45WdwOidXddtVRGYUCABtu9saBUmabq5LvGW/idLBCnQknzvK5MrFu6MW Wyf10XOW8eHhNw6Hv1dS6pqQV7PvS57Ctpa76nxyHVYDwdbCMRFdA/slh5LQF15iJ/Wk 3Zn1YNUCphfr7LhsdV21MoR9qr1YKIFdSaWRNIOSyRSSVIhcoVDik2cFTpC3MrBVws1R EyNvQ/uU4mjz/s6dwNn/Of7s3crs0clB8R47168JhU/kAO2HPIlIFM468Sw58pSfQ++R +/VAPaYFjvE6y4SGwHuEu99FB6PmEcAR8ayM6AVWzO6FfSMOQaDgeyViieXW6Bm29cF2 3XeA== X-Gm-Message-State: AGRZ1gIPYIEO1hCCye47wcZqc1E5UY8Zewtd47gMdYgiPspQFIB0GFNh ZiLF4q/6ic98hyUD08YJAYsP7xUsrkMYOJe2gff2/w== X-Google-Smtp-Source: AJdET5eTJYxEqHzXvKiVTx/Vt6Zjk5A9fRa5bxdMePqroM3Y56qbuwCfQLb+I/RZxaqfMxyg1HHsPpIstiGZ2hwX5u4= X-Received: by 2002:a24:ee46:: with SMTP id b67-v6mr12885378iti.19.1540843512139; Mon, 29 Oct 2018 13:05:12 -0700 (PDT) MIME-Version: 1.0 References: <20181025004210.177441-1-yunhanw@google.com> In-Reply-To: From: Yunhan Wang Date: Mon, 29 Oct 2018 13:05:00 -0700 Message-ID: Subject: Re: [PATCH] gatt: Fix double att_disconnected issue on disconnection To: Luiz Augusto von Dentz Cc: linux-bluetooth@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Hi, Luiz Great, thanks. It is working now. Best wishes Yunhan On Mon, Oct 29, 2018 at 6:28 AM Luiz Augusto von Dentz wrote: > > Hi Yunhan, > On Fri, Oct 26, 2018 at 5:00 AM Yunhan Wang wrote: > > > > Hi, Luiz > > > > On Thu, Oct 25, 2018 at 2:41 PM Luiz Augusto von Dentz > > wrote: > > > > > > Hi Yunhan, > > > On Fri, Oct 26, 2018 at 12:06 AM Yunhan Wang wro= te: > > > > > > > > Hi, Luiz > > > > > > > > I am using latest bluez master without any change for this issue, I > > > > think I am not missing any changes....The issue is there. > > > > > > Then we have a problem on bt_att, but that is tracking if the handler > > > is removed so I wonder how it is still reproducible for you. > > > > > It is reproducible using real ble dongles, It is also reproducible > > using btvirt..... > > Using btvirt -L -l2 and bluetoothctl > > > > Following the below instructions, when central issue ble disconnection > > to peripheral, the bluetoothd would crash as I show before. > > > > Peripheral: > > > > [bluetooth]# select 00:AA:01:01:00:24 > > Controller 00:AA:01:01:00:24 N0001 [default] > > [bluetooth]# system-alias N0001 > > Changing N0001 succeeded > > [bluetooth]# power on > > Changing power on succeeded > > [bluetooth]# name N0001 > > [bluetooth]# uuids FEAF > > [bluetooth]# discoverable on > > [bluetooth]# back > > [bluetooth]# register-service 0000feaf-0000-1000-8000-00805f9b34fb > > [NEW] Primary Service > > /org/bluez/app/service0x562f48a31860 > > 0000feaf-0000-1000-8000-00805f9b34fb > > Nest Labs Inc. > > [/org/bluez/app/service0x562f48a31860] Primary (yes/no): yees > > Invalid option: yees > > [DEL] Primary Service > > /org/bluez/app/service0x562f48a31860 > > 0000feaf-0000-1000-8000-00805f9b34fb > > Nest Labs Inc. > > [bluetooth]# register-service 0000feaf-0000-1000-8000-00805f9b34fb > > [NEW] Primary Service > > /org/bluez/app/service0x562f48a34e70 > > 0000feaf-0000-1000-8000-00805f9b34fb > > Nest Labs Inc. > > [/org/bluez/app/service0x562f48a34e70] Primary (yes/no): yes > > > > [bluetooth]# register-characteristic > > 18ee2ef5-263d-4559-959f-4f9c429f9d11 read,write > > [NEW] Characteristic > > /org/bluez/app/service0x562f48a34e70/chrc0x562f48a437c0 > > 18ee2ef5-263d-4559-959f-4f9c429f9d11 > > Vendor specific > > [/org/bluez/app/service0x562f48a34e70/chrc0x562f48a437c0] Enter value: = 1 > > > > [bluetooth]# register-application > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001800-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001801-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000110e-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001200-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000110c-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000feaf-0000-1000-8000-00805= f9b34fb > > Application registered > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001800-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001801-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000110e-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 00001200-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000110c-0000-1000-8000-00805= f9b34fb > > [CHG] Controller 00:AA:01:01:00:24 UUIDs: 0000feaf-0000-1000-8000-00805= f9b34fb > > [bluetooth]# back > > > > [bluetooth]# advertise peripheral > > [CHG] Controller 00:AA:01:01:00:24 SupportedInstances: 0x04 > > [CHG] Controller 00:AA:01:01:00:24 ActiveInstances: 0x01 > > Advertising object registered > > UUID: (FEAF) > > Tx Power: off > > LocalName: N0001 > > Apperance: off > > Discoverable: on > > [CHG] Controller 00:AA:01:00:00:23 Powered: yes > > [CHG] Controller 00:AA:01:00:00:23 Discovering: yes > > [CHG] Controller 00:AA:01:00:00:23 Discovering: no > > [CHG] Controller 00:AA:01:00:00:23 Discovering: yes > > [CHG] Device 00:AA:01:00:00:23 Connected: yes > > [NEW] Primary Service > > /org/bluez/hci2/dev_00_AA_01_00_00_23/service0006 > > 00001801-0000-1000-8000-00805f9b34fb > > Generic Attribute Profile > > [NEW] Characteristic > > /org/bluez/hci2/dev_00_AA_01_00_00_23/service0006/char0007 > > 00002a05-0000-1000-8000-00805f9b34fb > > Service Changed > > [NEW] Descriptor > > /org/bluez/hci2/dev_00_AA_01_00_00_23/service0006/char0007/desc0009 > > 00002902-0000-1000-8000-00805f9b34fb > > Client Characteristic Configuration > > [CHG] Device 00:AA:01:00:00:23 ServicesResolved: yes > > > > > > Central: > > > > [bluetooth]# select 00:AA:01:00:00:23 > > Discovery stopped > > [bluetooth]# scan on > > Discovery started > > [CHG] Controller 00:AA:01:00:00:23 Discovering: yes > > [bluetooth]# connect 00:AA:01:01:00:24 > > Attempting to connect to 00:AA:01:01:00:24 > > [CHG] Device 00:AA:01:01:00:24 Connected: yes > > Connection successful > > [CHG] Device 00:AA:01:01:00:24 UUIDs: 00001800-0000-1000-8000-00805f9b3= 4fb > > [CHG] Device 00:AA:01:01:00:24 UUIDs: 00001801-0000-1000-8000-00805f9b3= 4fb > > [NEW] Primary Service > > /org/bluez/hci1/dev_00_AA_01_01_00_24/service0006 > > 00001801-0000-1000-8000-00805f9b34fb > > Generic Attribute Profile > > [NEW] Characteristic > > /org/bluez/hci1/dev_00_AA_01_01_00_24/service0006/char0007 > > 00002a05-0000-1000-8000-00805f9b34fb > > Service Changed > > [NEW] Descriptor > > /org/bluez/hci1/dev_00_AA_01_01_00_24/service0006/char0007/desc0009 > > 00002902-0000-1000-8000-00805f9b34fb > > Client Characteristic Configuration > > [NEW] Primary Service > > /org/bluez/hci1/dev_00_AA_01_01_00_24/service000d > > 0000feaf-0000-1000-8000-00805f9b34fb > > Nest Labs Inc. > > [NEW] Characteristic > > /org/bluez/hci1/dev_00_AA_01_01_00_24/service000d/char000e > > 18ee2ef5-263d-4559-959f-4f9c429f9d11 > > Vendor specific > > [CHG] Device 00:AA:01:01:00:24 UUIDs: 00001800-0000-1000-8000-00805f9b3= 4fb > > [CHG] Device 00:AA:01:01:00:24 UUIDs: 00001801-0000-1000-8000-00805f9b3= 4fb > > [CHG] Device 00:AA:01:01:00:24 UUIDs: 0000feaf-0000-1000-8000-00805f9b3= 4fb > > [CHG] Device 00:AA:01:01:00:24 ServicesResolved: yes > > > > [N0001]# disconnect 00:AA:01:01:00:24 > > Attempting to disconnect from 00:AA:01:01:00:24 > > [CHG] Device 00:AA:01:01:00:24 ServicesResolved: no > > Successful disconnected > > It should be fixed now, the problem was that the bt_gatt_server was > set to NULL already thus the bt_att_unregister_disconnect did nothing, > Ive might have tested a version were I passed bt_att directly but > later I changed to use bt_gatt_server to access the bt_att instance > from btd_device. > > > > > > > It is not for chrome os. I am currently trying bring up bluez versi= on > > > > from commit in Jan 19 11:37:07 2018 to latest master in Open weave > > > > project(https://github.com/openweave/openweave-core/blob/master/rep= os.conf), > > > > where we are using BLE for weave pairing in iot products, and creat= e > > > > two GATT characteristics for Tx and Rx and the TCP-like control > > > > protocol to control BLE packet flow. Periodically I would sync Blu= ez > > > > revision in openweave against Bluez Upstream. > > > > > > All major mobile OS support LE L2CAP CoC channels, no idea why > > > companies want to keep using GATT for emulating serial like > > > communication special when L2CAP does have support for fragmentation > > > and flow control. > > > > > Yes, L2CAP do have support for fragmentation and flow control, but for > > some platforms, it may not have bluez, and its L2CAP is not good, then > > GATT layer fragmentation and flow control is needed. In addition, the > > L2CAP API is available on neither Android nor iOS when we did this > > implementation in the past...then GATT layer fragmentation and flow > > control is also needed. > > Sure, though moving to L2CAP is a lot simpler... anyway it was just a > recommendation given that L2CAP is now supported. > > > Thanks > > Best wishes > > Yunhan > > > > Thanks > > > > Best wishes > > > > Yunhan > > > > > > > > On Thu, Oct 25, 2018 at 1:22 PM Luiz Augusto von Dentz > > > > wrote: > > > > > > > > > > Hi Yunhan, > > > > > > > > > > On Thu, Oct 25, 2018 at 9:24 PM Luiz Augusto von Dentz > > > > > wrote: > > > > > > > > > > > > Hi Yunhan, > > > > > > > > > > > > We might be better of removing the handler altogether and just = leave device.c handler instead then. > > > > > > > > > > > > On Thu, 25 Oct 2018, 20:19 Yunhan Wang, wr= ote: > > > > > >> > > > > > >> Hi, Luiz > > > > > >> > > > > > >> Actually before I submit my patch, I tried your way to unregis= ter the > > > > > >> handler, it is failing. That is why I use random address check= in > > > > > >> btd_gatt_database_att_disconnected to workaround this issue. > > > > > >> > > > > > >> Thanks > > > > > >> Best wishes > > > > > >> Yunhan > > > > > >> > > > > > >> > > > > > >> > > > > > >> On Thu, Oct 25, 2018 at 10:49 AM Yunhan Wang wrote: > > > > > >> > > > > > > >> > Hi, Luiz > > > > > >> > > > > > > >> > Just have a test with your patch in master branch, both cras= hes are > > > > > >> > still there, and att_disconnected has been called for two ti= mes even > > > > > >> > though unregistering the handler.... > > > > > > > > > > Actually you may be missing the following patch: > > > > > > > > > > commit 261cf78db4be79a0f7d44798a57730b159c9be91 > > > > > Author: Luiz Augusto von Dentz > > > > > Date: Mon Oct 23 14:13:59 2017 +0300 > > > > > > > > > > shared/att: Fix crash when calling disconnect handlers > > > > > > > > > > This is quite old btw, what version is Chrome OS shipping? > > > > > > > > > > >> > Thanks > > > > > >> > Best wishes > > > > > >> > Yunhan > > > > > >> > > > > > > >> > Program received signal SIGSEGV, Segmentation fault. > > > > > >> > btd_adapter_find_device (adapter=3D0x72657664612f6372, > > > > > >> > dst=3Ddst@entry=3D0x555555872998, bdaddr_type=3D0 '\000') > > > > > >> > at bluez/repo/src/adapter.c:845 > > > > > >> > 845 list =3D g_slist_find_custom(adapter->devices, &addr, > > > > > >> > (gdb) bt > > > > > >> > #0 btd_adapter_find_device (adapter=3D0x72657664612f6372, > > > > > >> > dst=3Ddst@entry=3D0x555555872998, bdaddr_type=3D0 '\000') > > > > > >> > at bluez/repo/src/adapter.c:845 > > > > > >> > #1 0x00005555555ab890 in att_disconnected (err=3D, > > > > > >> > user_data=3D0x555555872990) > > > > > >> > at bluez/repo/src/gatt-database.c:329 > > > > > >> > #2 0x00005555555eaba8 in queue_foreach (queue=3D0x55555585d= e60, > > > > > >> > function=3Dfunction@entry=3D0x5555555ee5f0 = , > > > > > >> > user_data=3D0x68) > > > > > >> > at bluez/repo/src/shared/queue.c:220 > > > > > >> > #3 0x00005555555ef819 in disconnect_cb (io=3D, > > > > > >> > user_data=3D0x555555869d50) > > > > > >> > at bluez/repo/src/shared/att.c:592 > > > > > >> > #4 0x00005555555f89a3 in watch_callback (channel=3D, > > > > > >> > cond=3D, user_data=3D) > > > > > >> > at bluez/repo/src/shared/io-glib.c:170 > > > > > >> > #5 0x00007ffff7b0fe35 in g_main_context_dispatch () from > > > > > >> > /lib/x86_64-linux-gnu/libglib-2.0.so.0 > > > > > >> > #6 0x00007ffff7b10200 in ?? () from /lib/x86_64-linux-gnu/l= ibglib-2.0.so.0 > > > > > >> > #7 0x00007ffff7b10512 in g_main_loop_run () from > > > > > >> > /lib/x86_64-linux-gnu/libglib-2.0.so.0 > > > > > >> > #8 0x0000555555572238 in main (argc=3D, argv= =3D > > > > >> > out>) at bluez/repo/src/main.c:808 > > > > > >> > > > > > > >> > > > > > > >> > Program received signal SIGSEGV, Segmentation fault. > > > > > >> > queue_remove (queue=3D0x30, data=3Ddata@entry=3D0x5555558737= 40) at > > > > > >> > bluez/repo/src/shared/queue.c:256 > > > > > >> > 256 for (entry =3D queue->head, prev =3D NULL; entry; > > > > > >> > (gdb) bt > > > > > >> > #0 queue_remove (queue=3D0x30, data=3Ddata@entry=3D0x555555= 873740) at > > > > > >> > bluez/repo/src/shared/queue.c:256 > > > > > >> > #1 0x00005555555ab8c5 in att_disconnected (err=3D, > > > > > >> > user_data=3D0x555555873740) > > > > > >> > at bluez/repo/src/gatt-database.c:350 > > > > > >> > #2 0x00005555555eabb8 in queue_foreach (queue=3D0x55555586e= 670, > > > > > >> > function=3Dfunction@entry=3D0x5555555ee600 = , > > > > > >> > user_data=3D0x68) > > > > > >> > at bluez/repo/src/shared/queue.c:220 > > > > > >> > #3 0x00005555555ef829 in disconnect_cb (io=3D, > > > > > >> > user_data=3D0x555555865f50) > > > > > >> > at bluez/repo/src/shared/att.c:592 > > > > > >> > #4 0x00005555555f89b3 in watch_callback (channel=3D, > > > > > >> > cond=3D, user_data=3D) > > > > > >> > at bluez/repo/src/shared/io-glib.c:170 > > > > > >> > #5 0x00007ffff7b0fe35 in g_main_context_dispatch () from > > > > > >> > /lib/x86_64-linux-gnu/libglib-2.0.so.0 > > > > > >> > #6 0x00007ffff7b10200 in ?? () from /lib/x86_64-linux-gnu/l= ibglib-2.0.so.0 > > > > > >> > #7 0x00007ffff7b10512 in g_main_loop_run () from > > > > > >> > /lib/x86_64-linux-gnu/libglib-2.0.so.0 > > > > > >> > #8 0x0000555555572238 in main (argc=3D, argv= =3D > > > > >> > out>) at bluez/repo/src/main.c:808 > > > > > >> > On Thu, Oct 25, 2018 at 2:20 AM Luiz Augusto von Dentz > > > > > >> > wrote: > > > > > >> > > > > > > > >> > > Hi Yunhan, > > > > > >> > > > > > > > >> > > On Thu, Oct 25, 2018 at 4:47 AM Yunhan Wang wrote: > > > > > >> > > > > > > > > >> > > > Hi, Luiz > > > > > >> > > > > > > > > >> > > > I am observing the multiple crashes when doing BLE disco= nnection using > > > > > >> > > > latest bluez master..It looks like the two att_disconnec= t are > > > > > >> > > > triggered from your last gatt commit.. Please help take = a look at this > > > > > >> > > > workaround and comments.. the better solution might be t= o figure out > > > > > >> > > > how to handle the disconnection along with random addres= s and public > > > > > >> > > > address together regarding the previous issue, Gatt: Sub= scriptions are > > > > > >> > > > not cleared after disconnection from a temporary device > > > > > >> > > > > > > > >> > > Ive pushed a similar fix, it should remove the handler bef= ore calling > > > > > >> > > att_disconnected. > > > > > >> > > > > > > > >> > > > Thanks > > > > > >> > > > Best wishes > > > > > >> > > > Yunhan > > > > > >> > > > On Wed, Oct 24, 2018 at 5:42 PM yunhanw wrote: > > > > > >> > > > > > > > > > >> > > > > When BLE disconnection happens, att_disconnect is trig= gered from two locations, the new added location is gatt_server_cleanup, it= would cause several blueetoothd crashes. This bus is introduced from commi= t 634f0a6e1125af8d5959bff119d9336a8d81c028, where gatt fix, gatt subscripti= ons are not cleared after disconnection from a temporary device with privat= e/random address. In order to workaround this issue, btd_gatt_database_att_= disconnected can only be triggered when address type is random, and for oth= ers, it can continue to use original disconnect code path. > > > > > >> > > > > > > > > > >> > > > > crash 1 > > > > > >> > > > > Program received signal SIGSEGV, Segmentation faul= t. > > > > > >> > > > > queue_remove (queue=3D0x30, data=3Ddata@entry=3D0x= 555555872a40) at /repo/src/shared/queue.c:256 > > > > > >> > > > > 256 for (entry =3D queue->head, prev =3D NULL;= entry; > > > > > >> > > > > (gdb) backtrace > > > > > >> > > > > at /bluez/repo/src/gatt-database.c:350 > > > > > >> > > > > at bluez/repo/src/shared/queue.c:220 > > > > > >> > > > > at bluez/repo/src/shared/att.c:592 > > > > > >> > > > > at bluez/repo/src/shared/io-glib.c:170 > > > > > >> > > > > > > > > > >> > > > > crash 2 > > > > > >> > > > > at bluez/repo/src/shared/queue.c:220 > > > > > >> > > > > at bluez/repo/src/shared/att.c:592 > > > > > >> > > > > at bluez/repo/src/shared/io-glib.c:170 > > > > > >> > > > > > > > > > >> > > > > (gdb) print state->db->adapter > > > > > >> > > > > Cannot access memory at address 0x61672f6269727474 > > > > > >> > > > > --- > > > > > >> > > > > src/gatt-database.c | 2 ++ > > > > > >> > > > > 1 file changed, 2 insertions(+) > > > > > >> > > > > > > > > > >> > > > > diff --git a/src/gatt-database.c b/src/gatt-database.c > > > > > >> > > > > index 783b692d5..2f0eb83b5 100644 > > > > > >> > > > > --- a/src/gatt-database.c > > > > > >> > > > > +++ b/src/gatt-database.c > > > > > >> > > > > @@ -3365,6 +3365,8 @@ void btd_gatt_database_att_disco= nnected(struct btd_gatt_database *database, > > > > > >> > > > > > > > > > >> > > > > addr =3D device_get_address(device); > > > > > >> > > > > type =3D btd_device_get_bdaddr_type(device); > > > > > >> > > > > + if (type !=3D BDADDR_LE_RANDOM) > > > > > >> > > > > + return; > > > > > >> > > > > > > > > > >> > > > > state =3D find_device_state(database, addr, ty= pe); > > > > > >> > > > > if (!state) > > > > > >> > > > > -- > > > > > >> > > > > 2.19.1.568.g152ad8e336-goog > > > > > >> > > > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > -- > > > > > >> > > Luiz Augusto von Dentz > > > > > > > > > > > > > > > > > > > > -- > > > > > Luiz Augusto von Dentz > > > > > > > > > > > > -- > > > Luiz Augusto von Dentz > > > > -- > Luiz Augusto von Dentz