RE: Regression: devcoredump patch broke Realtek usb bluetooth adapter

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Hi! Kirill,
As your mentions, there's not obvious wrong from the dmesg.
Could you capture btmon log with raw data? (btmon -w xxx.log)
In additional, did you build the last version of bluetooth-next?
By my understanding, you can just duplicate the issue by the commit "044014ce85a1 Bluetooth: btrtl: Add Realtek devcoredump support"?
Unfortunately, I can not duplicate this issue sofar.


BRs,
Max


> -----Original Message-----
> From: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
> Sent: Wednesday, October 4, 2023 12:50 PM
> To: Max Chou <max.chou@xxxxxxxxxxx>
> Cc: Bagas Sanjaya <bagasdotme@xxxxxxxxx>; Hilda Wu
> <hildawu@xxxxxxxxxxx>; alex_lu@xxxxxxxxxxxxxx; Luiz Augusto von Dentz
> <luiz.von.dentz@xxxxxxxxx>; Marcel Holtmann <marcel@xxxxxxxxxxxx>;
> Johan Hedberg <johan.hedberg@xxxxxxxxx>; Juerg Haefliger
> <juerg.haefliger@xxxxxxxxxxxxx>; Linux Bluetooth
> <linux-bluetooth@xxxxxxxxxxxxxxx>; Thorsten Leemhuis <linux@xxxxxxxxxxxxx>;
> Linux Regressions <regressions@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List
> <linux-kernel@xxxxxxxxxxxxxxx>
> Subject: Re: Regression: devcoredump patch broke Realtek usb bluetooth
> adapter
> 
> 
> External mail.
> 
> 
> 
> On Wed, Oct 04, 2023 at 03:07:24AM +0000, Max Chou wrote:
> > 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)
> 
> I don't see anything obviously wrong in dmesg. Attached hciconfig and dmesg
> for both functional and broken cases.
> 
> --
>   Kiryl Shutsemau / Kirill A. Shutemov



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