Hitting this repeatedly with v7.1-rc6. Do not have time right now to
bisect it (and there are two other regressions at the same time).

Symptom is unable to use the Bluetooth keyboard.

It *seems* to be related to the Bluetooth keyboard - trying to shutdown
hangs for 6 minutes whilst systemd tries to kill bluetooth.service but fails
and then fails to power-off (see end of log extracts).

I'm not sure why I see 'samsung_probe' in the call trace since neither the Bluetooth host
adapter nor the keyboard are Samsung but maybe some change related to
that is causing this.

Jun 02 09:25:54 sunny kernel: BUG: unable to handle page fault for address: ffffffffffffffe4
Jun 02 09:25:54 sunny kernel: #PF: supervisor read access in kernel mode
Jun 02 09:25:54 sunny kernel: #PF: error_code(0x0000) - not-present page
Jun 02 09:25:54 sunny kernel: Oops: Oops: 0000 [#1] SMP NOPTI
Jun 02 09:25:54 sunny kernel: CPU: 11 UID: 0 PID: 4009 Comm: (udev-worker) Tainted: G        W  OE       7.1.0-rc6+debian+tj #446 PREEMPT(lazy)
Jun 02 09:25:54 sunny kernel: Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Jun 02 09:25:54 sunny kernel: Hardware name: System manufacturer System Product Name/PRIME X370-PRO, BIOS 6254 01/05/2026
Jun 02 09:25:54 sunny kernel: RIP: 0010:hidinput_setup_battery.isra.0+0x6d/0x370 [hid]
Jun 02 09:25:54 sunny kernel: Code: 48 ab 48 8b 42 68 48 8b 95 18 1c 00 00 8b 48 30 48 39 d3 74 45 48 8d 42 c8 eb 0f 66 90 48 8b 50 38 48 8d 42 c8 48 39 d3 74 30 <3b> 48 1c 75 ee 48 85 c0 74 26>
Jun 02 09:25:54 sunny kernel: RSP: 0018:ffffceacce2c7628 EFLAGS: 00010286
Jun 02 09:25:54 sunny kernel: RAX: ffffffffffffffc8 RBX: ffff8b4856a83c18 RCX: 0000000000000003
Jun 02 09:25:54 sunny kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffceacce2c7680
Jun 02 09:25:54 sunny kernel: RBP: ffff8b4856a82000 R08: ffffceacce2c7730 R09: ffffceacce2c772c
Jun 02 09:25:54 sunny kernel: R10: ffff8b488f290488 R11: ffff8b478bec9000 R12: ffffceacce2c7650
Jun 02 09:25:54 sunny kernel: R13: 0000000000000000 R14: 0000000000000000 R15: ffff8b47e6307b00
Jun 02 09:25:54 sunny kernel: FS:  00007f6ee16439c0(0000) GS:ffff8b4ed8fd0000(0000) knlGS:0000000000000000
Jun 02 09:25:54 sunny kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 02 09:25:54 sunny kernel: CR2: ffffffffffffffe4 CR3: 000000010b1c1000 CR4: 0000000000350ef0
Jun 02 09:25:54 sunny kernel: Call Trace:
Jun 02 09:25:54 sunny kernel:  <TASK>
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? dev_set_name+0x5c/0x80
Jun 02 09:25:54 sunny kernel:  hidinput_connect+0x935/0x5fb0 [hid]
Jun 02 09:25:54 sunny kernel:  hid_connect+0x3d5/0x6a0 [hid]
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? __wake_up_common+0x78/0xa0
Jun 02 09:25:54 sunny kernel:  hid_hw_start+0x40/0x70 [hid]
Jun 02 09:25:54 sunny kernel:  samsung_probe+0x31/0x70 [hid_samsung]
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  hid_device_probe+0x18d/0x220 [hid]
Jun 02 09:25:54 sunny kernel:  ? __pfx___device_attach_driver+0x10/0x10
Jun 02 09:25:54 sunny kernel:  really_probe+0xde/0x380
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  __driver_probe_device+0x84/0x150
Jun 02 09:25:54 sunny kernel:  driver_probe_device+0x1f/0xa0
Jun 02 09:25:54 sunny kernel:  __device_attach_driver+0x89/0x130
Jun 02 09:25:54 sunny kernel:  bus_for_each_drv+0x97/0xf0
Jun 02 09:25:54 sunny kernel:  __device_attach+0xaf/0x1c0
Jun 02 09:25:54 sunny kernel:  ? __pfx___hid_bus_reprobe_drivers+0x10/0x10 [hid]
Jun 02 09:25:54 sunny kernel:  device_reprobe+0x4e/0x90
Jun 02 09:25:54 sunny kernel:  ? __hid_bus_reprobe_drivers+0x3c/0x60 [hid]
Jun 02 09:25:54 sunny kernel:  bus_for_each_dev+0x8e/0xe0
Jun 02 09:25:54 sunny kernel:  ? __pfx___hid_bus_driver_added+0x10/0x10 [hid]
Jun 02 09:25:54 sunny kernel:  __hid_bus_driver_added+0x2f/0x40 [hid]
Jun 02 09:25:54 sunny kernel:  bus_for_each_drv+0x97/0xf0
Jun 02 09:25:54 sunny kernel:  __hid_register_driver+0x74/0x80 [hid]
Jun 02 09:25:54 sunny kernel:  ? __pfx_samsung_driver_init+0x10/0x10 [hid_samsung]
Jun 02 09:25:54 sunny kernel:  do_one_initcall+0x5c/0x320
Jun 02 09:25:54 sunny kernel:  do_init_module+0x60/0x250
Jun 02 09:25:54 sunny kernel:  init_module_from_file+0xd6/0x130
Jun 02 09:25:54 sunny kernel:  idempotent_init_module+0x114/0x310
Jun 02 09:25:54 sunny kernel:  __x64_sys_finit_module+0x71/0xe0
Jun 02 09:25:54 sunny kernel:  do_syscall_64+0xea/0x640
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? do_fault+0x341/0x530
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? __handle_mm_fault+0x977/0xf80
Jun 02 09:25:54 sunny kernel:  ? __memcg_slab_free_hook+0x16d/0x1c0
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? count_memcg_events+0xe5/0x1b0
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? __seccomp_filter+0x42/0x5d0
Jun 02 09:25:54 sunny kernel:  ? handle_mm_fault+0x1e2/0x2e0
Jun 02 09:25:54 sunny kernel:  ? srso_return_thunk+0x5/0x5f
Jun 02 09:25:54 sunny kernel:  ? do_syscall_64+0x9f/0x640
Jun 02 09:25:54 sunny kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e

Jun 02 09:25:54 sunny kernel: RIP: 0033:0x7f6ee111a7b9
Jun 02 09:25:54 sunny kernel: Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48>
Jun 02 09:25:54 sunny kernel: RSP: 002b:00007ffe6dd96398 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
Jun 02 09:25:54 sunny kernel: RAX: ffffffffffffffda RBX: 0000556830869b90 RCX: 00007f6ee111a7b9
Jun 02 09:25:54 sunny kernel: RDX: 0000000000000004 RSI: 00007f6ee16ed44d RDI: 0000000000000012
Jun 02 09:25:54 sunny kernel: RBP: 0000000000000004 R08: 0000000000000000 R09: 0000556830667bd0
Jun 02 09:25:54 sunny kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6ee16ed44d
Jun 02 09:25:54 sunny kernel: R13: 0000000000020000 R14: 00005568307db670 R15: 0000000000000000
Jun 02 09:25:54 sunny kernel:  </TASK>
Jun 02 09:25:54 sunny kernel: Modules linked in: hid_samsung(+) snd_seq_dummy snd_hrtimer snd_seq snd_seq_device uinput rpcsec_gss_krb5 nfsv4 dns_resolver nfs netfs rdma_ucm ib_uverbs rdma_cm i>
Jun 02 09:25:54 sunny kernel:  uvcvideo wmi_bmof watchdog snd_timer igb rfkill uas mii pcspkr mxm_wmi videobuf2_vmalloc snd ccp k10temp uvc i2c_piix4 dca videobuf2_memops soundcore videobuf2_v4>
Jun 02 09:25:54 sunny kernel: CR2: ffffffffffffffe4
Jun 02 09:25:54 sunny kernel: ---[ end trace 0000000000000000 ]---
Jun 02 09:25:54 sunny kernel: RIP: 0010:hidinput_setup_battery.isra.0+0x6d/0x370 [hid]
Jun 02 09:25:54 sunny kernel: Code: 48 ab 48 8b 42 68 48 8b 95 18 1c 00 00 8b 48 30 48 39 d3 74 45 48 8d 42 c8 eb 0f 66 90 48 8b 50 38 48 8d 42 c8 48 39 d3 74 30 <3b> 48 1c 75 ee 48 85 c0 74 26>
Jun 02 09:25:54 sunny kernel: RSP: 0018:ffffceacce2c7628 EFLAGS: 00010286
Jun 02 09:25:54 sunny kernel: RAX: ffffffffffffffc8 RBX: ffff8b4856a83c18 RCX: 0000000000000003
Jun 02 09:25:54 sunny kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffceacce2c7680
Jun 02 09:25:54 sunny kernel: RBP: ffff8b4856a82000 R08: ffffceacce2c7730 R09: ffffceacce2c772c
Jun 02 09:25:54 sunny kernel: R10: ffff8b488f290488 R11: ffff8b478bec9000 R12: ffffceacce2c7650
Jun 02 09:25:54 sunny kernel: R13: 0000000000000000 R14: 0000000000000000 R15: ffff8b47e6307b00
Jun 02 09:25:54 sunny kernel: FS:  00007f6ee16439c0(0000) GS:ffff8b4ed8fd0000(0000) knlGS:0000000000000000
Jun 02 09:25:54 sunny kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 02 09:25:54 sunny kernel: CR2: ffffffffffffffe4 CR3: 000000010b1c1000 CR4: 0000000000350ef0
Jun 02 09:25:54 sunny systemd-udevd[1703]: 0005:04E8:7021.0006: Worker [4009] terminated by signal 9 (KILL).

Jun 02 09:29:16 sunny rpc.idmapd[3093]: exiting on signal 15
Jun 02 09:30:45 sunny systemd[1]: bluetooth.service: State 'stop-sigterm' timed out. Killing.
Jun 02 09:32:15 sunny systemd[1]: bluetooth.service: Processes still around after SIGKILL. Ignoring.
Jun 02 09:33:45 sunny systemd[1]: bluetooth.service: State 'final-sigterm' timed out. Killing.
Jun 02 09:35:15 sunny systemd[1]: bluetooth.service: Processes still around after final SIGKILL. Entering failed mode.
Jun 02 09:35:15 sunny systemd[1]: bluetooth.service: Failed with result 'timeout'.