Hi Thorsten, On Tue, Mar 26, 2024 at 4:44 AM Thorsten Leemhuis <linux@xxxxxxxxxxxxx> wrote: > > Lo! Just booted 6.9 for the first time and noticed the Bluetooth code > causes an Oops (see below) during boot that did not happen with 6.8 and > earlier. This is on Fedora 40 with a vanilla kernel on a Lenovo Thinkpad > T14s Gen1 AMD. > > Do I need to bisect this? Or is this known already? Or does anyone by > chance an idea what might cause this? Or is there some other way to get > down to the problem? > > Ciao, Thorsten > > [Full dmesg: https://www.leemhuis.info/files/misc/dmesg-6.9-btprob] > > [ 19.903869] Bluetooth: hci0: Found device firmware: intel/ibt-20-1-3.sfi > [ 19.903908] Bluetooth: hci0: Boot Address: 0x24800 > [ 19.903913] Bluetooth: hci0: Firmware Version: 255-255.255 > [ 19.906245] usb 6-4: USB disconnect, device number 3 > [ 19.906364] usb 2-2: Found UVC 1.50 device Integrated Camera (04f2:b6cb) > [ 19.906583] Bluetooth: hci0: FW download error recovery failed (-19) > [ 19.906649] Bluetooth: hci0: sending frame failed (-19) > [ 19.906666] BUG: kernel NULL pointer dereference, address: 0000000000000070 > [ 19.906672] #PF: supervisor read access in kernel mode > [ 19.906677] #PF: error_code(0x0000) - not-present page > [ 19.906681] PGD 0 P4D 0 > [ 19.906688] Oops: 0000 [#1] PREEMPT SMP NOPTI > [ 19.906701] Hardware name: LENOVO 20UH001HGE/20UH001HGE, BIOS R1CET77W(1.46 ) 10/26/2023 > [ 19.906706] Workqueue: hci0 hci_power_on [bluetooth] > [ 19.906775] RIP: 0010:btintel_read_debug_features (/usr/src/debug/[...]/drivers/bluetooth/btintel.c:1306) btintel Seem like the following could be reason: https://patchwork.kernel.org/project/bluetooth/patch/20240326164317.1460864-1-luiz.dentz@xxxxxxxxx/