Warning: Permanently added '10.128.0.94' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 311.364623][ C1] hrtimer: interrupt took 33460 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 416.522219][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 416.529219][ C0] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6579/1:b..l [ 416.537333][ C0] (detected by 0, t=10502 jiffies, g=7837, q=103) [ 416.543915][ C0] task:syz-executor634 state:R running task stack:29168 pid: 6579 ppid: 6530 flags:0x00000000 [ 416.554908][ C0] Call Trace: [ 416.558205][ C0] __schedule+0x940/0x26f0 [ 416.562657][ C0] ? io_schedule_timeout+0x140/0x140 [ 416.567945][ C0] ? preempt_schedule_thunk+0x16/0x18 [ 416.573317][ C0] preempt_schedule_common+0x45/0xc0 [ 416.578602][ C0] preempt_schedule_thunk+0x16/0x18 [ 416.583803][ C0] _raw_spin_unlock+0x36/0x40 [ 416.588476][ C0] filemap_map_pages+0x1216/0x1880 [ 416.593597][ C0] ? find_get_pages_contig+0x920/0x920 [ 416.599059][ C0] ? mark_lock+0xef/0x17b0 [ 416.603470][ C0] ? __lock_acquire+0x162f/0x54a0 [ 416.608492][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 416.614472][ C0] __handle_mm_fault+0x28dd/0x5320 [ 416.619589][ C0] ? vm_iomap_memory+0x190/0x190 [ 416.624630][ C0] handle_mm_fault+0x1c8/0x790 [ 416.629399][ C0] do_user_addr_fault+0x48b/0x11c0 [ 416.634510][ C0] exc_page_fault+0x9e/0x180 [ 416.639094][ C0] ? asm_exc_page_fault+0x8/0x30 [ 416.644030][ C0] asm_exc_page_fault+0x1e/0x30 [ 416.648879][ C0] RIP: 0033:0x7fd630840030 [ 416.653288][ C0] RSP: 002b:00007ffe42bd48b8 EFLAGS: 00010246 [ 416.659349][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 416.667316][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 416.675280][ C0] RBP: 00000000000f4240 R08: 0000000000000000 R09: 00007fd6308a0140 [ 416.683327][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 416.691288][ C0] R13: 00007ffe42bd4930 R14: 00007ffe42bd4920 R15: 00007ffe42bd48e4 [ 416.699271][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g7837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 416.710388][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 416.720348][ C0] rcu: RCU grace-period kthread stack dump: [ 416.726236][ C0] task:rcu_preempt state:R running task stack:28696 pid: 14 ppid: 2 flags:0x00004000 [ 416.737027][ C0] Call Trace: [ 416.740399][ C0] __schedule+0x940/0x26f0 [ 416.744825][ C0] ? io_schedule_timeout+0x140/0x140 [ 416.750199][ C0] ? debug_object_destroy+0x210/0x210 [ 416.755579][ C0] schedule+0xd3/0x270 [ 416.759646][ C0] schedule_timeout+0x14a/0x2a0 [ 416.764581][ C0] ? usleep_range+0x170/0x170 [ 416.769253][ C0] ? destroy_timer_on_stack+0x20/0x20 [ 416.774629][ C0] ? check_zone_write_pointer.cold+0x190/0x20a [ 416.780790][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 416.786606][ C0] ? prepare_to_swait_event+0xee/0x470 [ 416.792076][ C0] rcu_gp_fqs_loop+0x186/0x800 [ 416.796842][ C0] ? force_qs_rnp+0x760/0x760 [ 416.801529][ C0] ? rcu_gp_init+0x906/0x12a0 [ 416.806222][ C0] rcu_gp_kthread+0x1de/0x320 [ 416.810897][ C0] ? rcu_gp_init+0x12a0/0x12a0 [ 416.815663][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 416.821902][ C0] ? __kthread_parkme+0x15f/0x220 [ 416.826924][ C0] ? rcu_gp_init+0x12a0/0x12a0 [ 416.831686][ C0] kthread+0x3e5/0x4d0 [ 416.835751][ C0] ? set_kthread_struct+0x130/0x130 [ 416.840946][ C0] ret_from_fork+0x1f/0x30 [ 416.845371][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 416.851678][ C0] Sending NMI from CPU 0 to CPUs 1: [ 416.856877][ C1] NMI backtrace for cpu 1 [ 416.856886][ C1] CPU: 1 PID: 6581 Comm: syz-executor634 Not tainted 5.15.0-rc5-syzkaller #0 [ 416.856902][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 416.856910][ C1] RIP: 0010:check_preemption_disabled+0x2/0x170 [ 416.856932][ C1] Code: 1f 44 00 00 e8 7f 8d 64 f8 65 48 8b 3c 25 40 f0 01 00 e8 51 c9 1c f8 eb 99 0f 1f 44 00 00 0f 0b e9 23 ff ff ff cc cc cc 41 56 <41> 55 49 89 f5 41 54 55 48 89 fd 53 0f 1f 44 00 00 65 44 8b 25 7d [ 416.856945][ C1] RSP: 0018:ffffc90000dc0d80 EFLAGS: 00000086 [ 416.856957][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8161b4b4 [ 416.856967][ C1] RDX: 0000000000000001 RSI: ffffffff89e42be0 RDI: ffffffff89e42c20 [ 416.856976][ C1] RBP: 1ffff920001b81b9 R08: 0000000000000000 R09: ffff8880b9d32a0b [ 416.856986][ C1] R10: ffffed10173a6541 R11: 0000000000000000 R12: 0000000000000001 [ 416.856995][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9d223c0 [ 416.857007][ C1] FS: 00007fd6307cc700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 416.857021][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 416.857031][ C1] CR2: 00007ffe42bd4898 CR3: 00000000199e6000 CR4: 0000000000350ee0 [ 416.857040][ C1] Call Trace: [ 416.857044][ C1] [ 416.857048][ C1] rcu_lockdep_current_cpu_online+0x2d/0x150 [ 416.857066][ C1] rcu_read_lock_sched_held+0x25/0x70 [ 416.857081][ C1] lock_release+0x522/0x720 [ 416.857096][ C1] ? lock_release+0x720/0x720 [ 416.857109][ C1] ? clockevents_program_event+0x141/0x370 [ 416.857125][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 416.857141][ C1] ? find_held_lock+0x2d/0x110 [ 416.857156][ C1] ktime_get+0x158/0x470 [ 416.857170][ C1] ? clockevents_program_event+0x141/0x370 [ 416.857185][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 416.857202][ C1] ? __hrtimer_next_event_base+0x1de/0x260 [ 416.857217][ C1] clockevents_program_event+0x141/0x370 [ 416.857234][ C1] tick_program_event+0xac/0x140 [ 416.857250][ C1] hrtimer_interrupt+0x36e/0x790 [ 416.857268][ C1] __sysvec_apic_timer_interrupt+0x146/0x530 [ 416.857287][ C1] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 416.857302][ C1] [ 416.857306][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 416.857325][ C1] RIP: 0010:__orc_find+0x4a/0xf0 [ 416.857344][ C1] Code: 49 89 fd 0f 87 9a 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 <48> 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d [ 416.857357][ C1] RSP: 0018:ffffc90002dff440 EFLAGS: 00000206 [ 416.857367][ C1] RAX: ffffffff8d83620c RBX: ffffffff8d8361fc RCX: ffffffff81c7c0bc [ 416.857377][ C1] RDX: 0000000000000000 RSI: ffffffff8df505e0 RDI: ffffffff8d8361ec [ 416.857386][ C1] RBP: ffffffff8d836200 R08: 0000000000000000 R09: ffffffff8df505e0 [ 416.857395][ C1] R10: fffff520005bfeb7 R11: 0000000000086089 R12: ffffffff8d83620c [ 416.857405][ C1] R13: ffffffff8d8361ec R14: ffffffff8d8361fc R15: dffffc0000000000 [ 416.857417][ C1] ? do_sys_openat2+0x16c/0x4d0 [ 416.857433][ C1] ? arch_stack_walk+0x5c/0xe0 [ 416.857449][ C1] ? do_sys_openat2+0x16c/0x4d0 [ 416.857462][ C1] unwind_next_frame+0x32a/0x1ce0 [ 416.857475][ C1] ? do_sys_openat2+0x16d/0x4d0 [ 416.857489][ C1] ? deref_stack_reg+0x150/0x150 [ 416.857503][ C1] ? __unwind_start+0x51b/0x800 [ 416.857516][ C1] ? create_prof_cpu_mask+0x20/0x20 [ 416.857532][ C1] arch_stack_walk+0x7d/0xe0 [ 416.857547][ C1] ? do_sys_openat2+0x16d/0x4d0 [ 416.857562][ C1] stack_trace_save+0x8c/0xc0 [ 416.857576][ C1] ? stack_trace_consume_entry+0x160/0x160 [ 416.857594][ C1] kasan_save_stack+0x1b/0x40 [ 416.857612][ C1] ? kasan_save_stack+0x1b/0x40 [ 416.857629][ C1] ? __kasan_kmalloc+0xa4/0xd0 [ 416.857645][ C1] ? tty_open+0x140/0x1000 [ 416.857661][ C1] ? chrdev_open+0x266/0x770 [ 416.857683][ C1] ? do_dentry_open+0x4c8/0x11d0 [ 416.857699][ C1] ? path_openat+0x1c9a/0x2740 [ 416.857715][ C1] ? do_filp_open+0x1aa/0x400 [ 416.857731][ C1] ? do_sys_openat2+0x16d/0x4d0 [ 416.857744][ C1] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 416.857765][ C1] ? find_held_lock+0x2d/0x110 [ 416.857779][ C1] ? kmem_cache_alloc_trace+0x42/0x2b0 [ 416.857800][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 416.857815][ C1] __kasan_kmalloc+0xa4/0xd0 [ 416.857832][ C1] tty_open+0x140/0x1000 [ 416.857849][ C1] ? tty_init_dev+0x80/0x80 [ 416.857863][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 416.857881][ C1] ? tty_init_dev+0x80/0x80 [ 416.857895][ C1] chrdev_open+0x266/0x770 [ 416.857912][ C1] ? cdev_device_add+0x210/0x210 [ 416.857929][ C1] ? fsnotify_perm.part.0+0x22d/0x620 [ 416.857950][ C1] do_dentry_open+0x4c8/0x11d0 [ 416.857967][ C1] ? cdev_device_add+0x210/0x210 [ 416.857984][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 416.858000][ C1] ? may_open+0x1f6/0x420 [ 416.858015][ C1] path_openat+0x1c9a/0x2740 [ 416.858034][ C1] ? path_lookupat+0x860/0x860 [ 416.858051][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 416.858069][ C1] do_filp_open+0x1aa/0x400 [ 416.858085][ C1] ? may_open_dev+0xf0/0xf0 [ 416.858104][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 416.858119][ C1] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 416.858135][ C1] ? _find_next_bit+0x1e3/0x260 [ 416.858154][ C1] ? _raw_spin_unlock+0x24/0x40 [ 416.858168][ C1] ? alloc_fd+0x2f0/0x670 [ 416.858184][ C1] do_sys_openat2+0x16d/0x4d0 [ 416.858198][ C1] ? build_open_flags+0x6f0/0x6f0 [ 416.858212][ C1] ? __context_tracking_exit+0xb8/0xe0 [ 416.858227][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 416.858243][ C1] __x64_sys_openat+0x13f/0x1f0 [ 416.858256][ C1] ? __ia32_sys_open+0x1c0/0x1c0 [ 416.858271][ C1] ? syscall_enter_from_user_mode+0x21/0x70 [ 416.858288][ C1] do_syscall_64+0x35/0xb0 [ 416.858305][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 416.858321][ C1] RIP: 0033:0x7fd63081aaf9 [ 416.858335][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 b8 ff ff ff f7 d8 64 89 01 48 [ 416.858348][ C1] RSP: 002b:00007fd6307cc318 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 416.858361][ C1] RAX: ffffffffffffffda RBX: 00007fd6308a23e8 RCX: 00007fd63081aaf9 [ 416.858371][ C1] RDX: 0000000000000802 RSI: 0000000020000840 RDI: ffffffffffffff9c [ 416.858380][ C1] RBP: 00007fd6308a23e0 R08: 0000000000000000 R09: 0000000000000000 [ 416.858389][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 7974742f7665642f [ 416.858398][ C1] R13: 00007ffe42bd483f R14: 00007fd6307cc400 R15: 0000000000022000 [ 416.858413][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.536 msecs