linux-kernel - RE: Regression: devcoredump patch broke Realtek usb bluetooth adapter

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <b2ef2f1c457a4cf7a246b2e8b8598a30@realtek.com>
Date:   Wed, 4 Oct 2023 03:07:24 +0000
From:   Max Chou <max.chou@...ltek.com>
To:     Bagas Sanjaya <bagasdotme@...il.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Hilda Wu <hildawu@...ltek.com>
CC:     "alex_lu@...lsil.com.cn" <alex_lu@...lsil.com.cn>,
        Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        "Johan Hedberg" <johan.hedberg@...il.com>,
        Juerg Haefliger <juerg.haefliger@...onical.com>,
        Linux Bluetooth <linux-bluetooth@...r.kernel.org>,
        Thorsten Leemhuis <linux@...mhuis.info>,
        Linux Regressions <regressions@...ts.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: RE: Regression: devcoredump patch broke Realtek usb bluetooth adapter

Hi! Kirill,
I based on Kernel v6.5.5 and updated drivers/bluetooth to the last version of bluetooth-next tree for a test with RTL8761BUV.
The dmesg log and "hciconfig -a" are correct.
Could you share the dmesg for your failure case?

[56133.563293] usb 3-1: new full-speed USB device number 28 using xhci_hcd
[56133.712559] usb 3-1: New USB device found, idVendor=0bda, idProduct=8771, bcdDevice= 2.00
[56133.712577] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[56133.712582] usb 3-1: Product: Bluetooth Radio
[56133.712585] usb 3-1: Manufacturer: Realtek
[56133.712588] usb 3-1: SerialNumber: 00E04C239987
[56133.737812] usbcore: registered new interface driver btusb
[56133.742126] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[56133.743115] Bluetooth: hci0: RTL: rom_version status=0 version=1
[56133.743124] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
[56133.743754] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
[56133.743829] Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
[56133.913311] Bluetooth: hci0: RTL: fw version 0xdfc6d922
[56133.980299] Bluetooth: MGMT ver 1.22

hci0:   Type: Primary  Bus: USB
        BD Address: 98:A2:35:85:56:F1  ACL MTU: 1021:6  SCO MTU: 255:12
        UP RUNNING
        RX bytes:1670 acl:0 sco:0 events:184 errors:0
        TX bytes:33917 acl:0 sco:0 commands:184 errors:0
        Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
        Link policy: RSWITCH HOLD SNIFF PARK
        Link mode: PERIPHERAL ACCEPT
        Name: 'max-ThinkPad-X230'
        Class: 0x6c010c
        Service Classes: Rendering, Capturing, Audio, Telephony
        Device Class: Computer, Laptop
        HCI Version: 5.1 (0xa)  Revision: 0xdfc6
        LMP Version: 5.1 (0xa)  Subversion: 0xd922
        Manufacturer: Realtek Semiconductor Corporation (93)


BRs,
Max


> -----Original Message-----
> From: Bagas Sanjaya <bagasdotme@...il.com>
> Sent: Wednesday, October 4, 2023 7:56 AM
> To: Kirill A. Shutemov <kirill@...temov.name>; Hilda Wu
> <hildawu@...ltek.com>
> Cc: alex_lu@...lsil.com.cn; Luiz Augusto von Dentz
> <luiz.von.dentz@...el.com>; Max Chou <max.chou@...ltek.com>; Marcel
> Holtmann <marcel@...tmann.org>; Johan Hedberg
> <johan.hedberg@...il.com>; Juerg Haefliger
> <juerg.haefliger@...onical.com>; Linux Bluetooth
> <linux-bluetooth@...r.kernel.org>; Thorsten Leemhuis <linux@...mhuis.info>;
> Linux Regressions <regressions@...ts.linux.dev>; Linux Kernel Mailing List
> <linux-kernel@...r.kernel.org>
> Subject: Re: Regression: devcoredump patch broke Realtek usb bluetooth
> adapter
> 
> On Tue, Oct 03, 2023 at 09:20:38PM +0300, Kirill A. Shutemov wrote:
> > Hi,
> >
> > Commit 044014ce85a1 ("Bluetooth: btrtl: Add Realtek devcoredump
> > support") broke Realtek-based ASUS USB-BT500, ID 0b05:190e.
> >
> > Devices failed to connect. hciconfig showed a controller with all-zero
> > BD address.
> 
> What is its output then? And dmesg log?
> 
> >
> > I reverted the commit as well as bd003fb338af that depends on the commit.
> > It made the problem go away.
> >
> > I know virtually nothing about bluetooth. Let me know what info you
> > need to debug the issue.
> >
> 
> Hilda, it looks like this regression is caused by a commit of yours. Would you
> like to take a look on it?
> 
> Regardless, thanks for the regression report. I'm adding it to regzbot:
> 
> #regzbot ^introduced: 044014ce85a17c
> 
> --
> An old man doll... just what I always wanted! - Clara