Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. [ 75.195926][ T4280] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 75.198899][ T4288] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 75.204222][ T4280] Bluetooth: hci3: unexpected cc 0x0c03 length: 249 > 1 [ 75.212518][ T4288] Bluetooth: hci4: unexpected cc 0x0c03 length: 249 > 1 [ 75.219059][ T4280] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 75.224907][ T4288] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 75.232576][ T4280] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 75.239203][ T4288] Bluetooth: hci3: unexpected cc 0x1003 length: 249 > 9 [ 75.245988][ T4280] Bluetooth: hci4: unexpected cc 0x1003 length: 249 > 9 [ 75.252952][ T4288] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 75.260390][ T4280] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 75.266632][ T4288] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 75.273600][ T4280] Bluetooth: hci3: unexpected cc 0x1001 length: 249 > 9 [ 75.281582][ T4288] Bluetooth: hci4: unexpected cc 0x1001 length: 249 > 9 [ 75.294365][ T4280] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 75.296759][ T4288] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 75.301684][ T4280] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 75.309535][ T4288] Bluetooth: hci4: unexpected cc 0x0c23 length: 249 > 4 [ 75.316062][ T4280] Bluetooth: hci3: unexpected cc 0x0c23 length: 249 > 4 [ 75.324402][ T4288] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 75.330002][ T4280] Bluetooth: hci2: unexpected cc 0x0c25 length: 249 > 3 [ 75.336414][ T4288] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 75.343568][ T4280] Bluetooth: hci4: unexpected cc 0x0c25 length: 249 > 3 [ 75.350957][ T4288] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 75.357468][ T4280] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 75.365212][ T4288] Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3 [ 75.371533][ T4280] Bluetooth: hci3: unexpected cc 0x0c25 length: 249 > 3 [ 75.379178][ T4288] Bluetooth: hci4: unexpected cc 0x0c38 length: 249 > 2 [ 75.392399][ T4280] Bluetooth: hci3: unexpected cc 0x0c38 length: 249 > 2 [ 75.398324][ T48] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 executing program [ 180.661234][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 180.668466][ C0] (detected by 0, t=10502 jiffies, g=7513, q=35 ncpus=2) [ 180.675616][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294955195-4294944693), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 180.689106][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g7513 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 180.700253][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 180.710253][ C0] rcu: RCU grace-period kthread stack dump: [ 180.716159][ C0] task:rcu_preempt state:R running task stack:27840 pid:16 ppid:2 flags:0x00004000 [ 180.727011][ C0] Call Trace: [ 180.730319][ C0] [ 180.733290][ C0] __schedule+0x10ec/0x40b0 [ 180.737866][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 180.743110][ C0] ? _raw_spin_unlock+0x40/0x40 [ 180.748012][ C0] ? release_firmware_map_entry+0x18a/0x18a [ 180.753972][ C0] schedule+0xb9/0x180 [ 180.758093][ C0] schedule_timeout+0x15c/0x280 [ 180.762998][ C0] ? console_conditional_schedule+0x40/0x40 [ 180.768936][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 180.774970][ C0] ? update_process_times+0x1b0/0x1b0 [ 180.780407][ C0] ? prepare_to_swait_event+0x335/0x350 [ 180.786003][ C0] rcu_gp_fqs_loop+0x2f2/0x1310 [ 180.790899][ C0] ? rcu_gp_kthread+0x380/0x380 [ 180.795790][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 180.801904][ C0] ? rcu_gp_init+0x14b0/0x14b0 [ 180.806700][ C0] ? rcu_gp_cleanup+0xb4c/0xca0 [ 180.811592][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 180.816832][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 180.822073][ C0] rcu_gp_kthread+0x95/0x380 [ 180.826702][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 180.831849][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 180.837806][ C0] ? __kthread_parkme+0x162/0x1c0 [ 180.842879][ C0] kthread+0x29d/0x330 [ 180.846988][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 180.852152][ C0] ? kthread_blkcg+0xd0/0xd0 [ 180.856786][ C0] ret_from_fork+0x1f/0x30 [ 180.861257][ C0] [ 180.864320][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 180.870678][ C0] Sending NMI from CPU 0 to CPUs 1: [ 180.875924][ C1] NMI backtrace for cpu 1 [ 180.875950][ C1] CPU: 1 PID: 4292 Comm: syz-executor125 Not tainted 6.1.147-syzkaller #0 [ 180.875966][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 180.875975][ C1] RIP: 0010:__lock_acquire+0x19d7/0x7c50 [ 180.876003][ C1] Code: 00 00 00 fc ff df 4d 89 37 48 8b 44 24 70 42 0f b6 04 00 84 c0 0f 85 96 51 00 00 8b 03 ff c0 89 03 83 f8 30 0f 83 6b 40 00 00 44 24 34 01 00 00 00 3b 05 7b ce 4a 0f 0f 86 f9 3f 00 00 89 05 [ 180.876019][ C1] RSP: 0018:ffffc90003d67660 EFLAGS: 00000087 [ 180.876034][ C1] RAX: 0000000000000002 RBX: ffff888018e86418 RCX: ffffffff81630200 [ 180.876046][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90add248 [ 180.876056][ C1] RBP: ffffc90003d678b0 R08: dffffc0000000000 R09: fffffbfff215ba4a [ 180.876077][ C1] R10: fffffbfff215ba4a R11: 1ffffffff215ba49 R12: ffffffff90998dc8 [ 180.876089][ C1] R13: 000000001ce8fcf3 R14: 06eef257fbaccea4 R15: ffff888018e86410 [ 180.876101][ C1] FS: 00005555647463c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 [ 180.876115][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 180.876126][ C1] CR2: 00007f9434e679a0 CR3: 0000000073884000 CR4: 00000000003506e0 [ 180.876141][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 180.876150][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 180.876160][ C1] Call Trace: [ 180.876166][ C1] [ 180.876189][ C1] ? verify_lock_unused+0x140/0x140 [ 180.876212][ C1] ? verify_lock_unused+0x140/0x140 [ 180.876237][ C1] ? __lock_timer+0x2b3/0x3f0 [ 180.876266][ C1] ? reacquire_held_locks+0x2f9/0x590 [ 180.876289][ C1] ? __lock_timer+0x2b3/0x3f0 [ 180.876319][ C1] lock_acquire+0x1b4/0x490 [ 180.876339][ C1] ? ktime_get+0x7b/0x270 [ 180.876365][ C1] ? read_lock_is_recursive+0x10/0x10 [ 180.876395][ C1] ? ktime_get+0x7b/0x270 [ 180.876412][ C1] seqcount_lockdep_reader_access+0xc6/0x1c0 [ 180.876431][ C1] ? ktime_get+0x7b/0x270 [ 180.876447][ C1] ? ktime_get_real_ts64+0x420/0x420 [ 180.876463][ C1] ? _raw_spin_lock_irqsave+0xb0/0xf0 [ 180.876487][ C1] ? _raw_spin_lock+0x40/0x40 [ 180.876511][ C1] ktime_get+0x7b/0x270 [ 180.876529][ C1] common_hrtimer_rearm+0x5d/0x110 [ 180.876550][ C1] posixtimer_rearm+0x131/0x340 [ 180.876575][ C1] dequeue_signal+0x1b6/0x4b0 [ 180.876597][ C1] ? __might_fault+0xa6/0x120 [ 180.876634][ C1] get_signal+0x547/0x1350 [ 180.876666][ C1] arch_do_signal_or_restart+0xb0/0x1230 [ 180.876688][ C1] ? __ia32_sys_rt_sigreturn+0x660/0x790 [ 180.876709][ C1] ? load_gs_index+0x120/0x120 [ 180.876736][ C1] ? get_sigframe_size+0x10/0x10 [ 180.876771][ C1] ? exit_to_user_mode_loop+0x3b/0x110 [ 180.876800][ C1] exit_to_user_mode_loop+0x70/0x110 [ 180.876828][ C1] exit_to_user_mode_prepare+0xb1/0x140 [ 180.876852][ C1] syscall_exit_to_user_mode+0x16/0x40 [ 180.876875][ C1] do_syscall_64+0x58/0xa0 [ 180.876896][ C1] ? clear_bhb_loop+0x60/0xb0 [ 180.876911][ C1] ? clear_bhb_loop+0x60/0xb0 [ 180.876926][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 180.876952][ C1] RIP: 0033:0x7f9434e4e7c9 [ 180.876973][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 1d 00 00 90 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 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 180.876986][ C1] RSP: 002b:00007ffc4caf9b68 EFLAGS: 00000246 [ 180.876998][ C1] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f9434e4e7c9 [ 180.877008][ C1] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 180.877018][ C1] RBP: 0000000000000000 R08: 00007f9434e06990 R09: 00007f9434e06990 [ 180.877028][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9434ea505c [ 180.877038][ C1] R13: 00007f9434e9e10f R14: 00007ffc4caf9ba0 R15: 0000000000000000 [ 180.877054][ C1] [ 180.877061][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.137 msecs