INFO: rcu detected stall in sys

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in sys_futex (7) kernel	43	1d20h	80d	0/28	upstream: reported on 2024/06/24 16:48
upstream	INFO: rcu detected stall in sys_futex (3) kernel	959	1710d	1759d	0/28	auto-closed as invalid on 2020/03/08 12:44
upstream	INFO: rcu detected stall in sys_futex (2) kernel	6	1878d	2022d	0/28	auto-closed as invalid on 2019/10/25 14:11
linux-5.15	INFO: rcu detected stall in sys_futex (2)	5	22d	99d	0/3	upstream: reported on 2024/06/05 16:49
upstream	INFO: rcu detected stall in sys_futex kernel	1	2083d	2083d	0/28	closed as invalid on 2018/12/31 04:10
linux-5.15	INFO: rcu detected stall in sys_futex	4	255d	430d	0/3	auto-obsoleted due to no activity on 2024/04/10 17:08
linux-6.1	INFO: rcu detected stall in sys_futex	14	11d	436d	0/3	upstream: reported on 2023/07/05 11:35
upstream	INFO: rcu detected stall in sys_futex (5) kernel	12	690d	935d	0/28	auto-obsoleted due to no activity on 2023/02/12 18:33
upstream	INFO: rcu detected stall in sys_futex (6) kernel	10	258d	494d	0/28	auto-obsoleted due to no activity on 2024/03/29 00:57

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (0 ticks this GP) idle=e9b/1/0x4000000000000000 softirq=75039/75039 fqs=7 (detected by 1, t=10502 jiffies, g=93857, q=60) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 17380 Comm: syz-executor.2 Not tainted 5.17.0-rc1-syzkaller-00186-g23a46422c561 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:iterate_chain_key kernel/locking/lockdep.c:421 [inline] RIP: 0010:__lock_acquire+0xc67/0x5470 kernel/locking/lockdep.c:5015 Code: c8 c1 c6 10 31 f0 8d 34 11 89 c1 29 c2 c1 c9 0d 01 f0 89 f7 31 ca 01 d0 29 d7 89 d1 48 8b 54 24 38 c1 c1 04 31 f9 48 c1 e1 20 <48> 09 c1 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df 0f b6 04 02 48 RSP: 0018:ffffc90000007bf8 EFLAGS: 00000896 RAX: 00000000ae833244 RBX: ffffffff8ffd8260 RCX: cd16587000000000 RDX: ffff88801f2be180 RSI: 00000000ffe8de65 RDI: 00000000474380db RBP: ffff88801f2be182 R08: 0000000000000000 R09: ffffffff8ffd394f R10: fffffbfff1ffa729 R11: 0000000000000001 R12: ffff88801f2be160 R13: ffff88801f2bd700 R14: ffffffff8d94faa8 R15: 0000000000000001 FS: 00005555558eb400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000073467000 CR4: 0000000000350ef0 DR0: 0800000000000080 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: <IRQ> lock_acquire kernel/locking/lockdep.c:5639 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5604 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:170 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x243/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194 Code: 74 24 10 e8 2a 61 0c f8 48 89 ef e8 e2 d6 0c f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 13 8a ff f7 65 8b 05 cc 8e b1 76 85 c0 74 0a 5b 5d c3 e8 a0 c1 RSP: 0018:ffffc90003b47b98 EFLAGS: 00000206 RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1b29369 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: ffff888077332680 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817ea2d8 R11: 0000000000000000 R12: 0000000000000206 R13: ffff888077331d14 R14: ffff888077332680 R15: ffff8880b9c39c40 try_to_wake_up+0x560/0x1510 kernel/sched/core.c:4135 wake_up_process kernel/sched/core.c:4217 [inline] wake_up_q+0x7e/0xf0 kernel/sched/core.c:964 futex_wake+0x3e9/0x490 kernel/futex/waitwake.c:184 do_futex+0x266/0x300 kernel/futex/syscalls.c:111 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd05c5d059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff41322f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007efd05d7003c RCX: 00007efd05c5d059 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007efd05d70038 RBP: 00007efd05d6ff60 R08: 0000000000000000 R09: 00000000000000d0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007efd05d7003c R13: 00007efd05d75818 R14: 00007efd05d70030 R15: 0000000000000001 </TASK> rcu: rcu_preempt kthread starved for 10488 jiffies! g93857 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:28736 pid: 14 ppid: 2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:4986 [inline] __schedule+0xab2/0x4db0 kernel/sched/core.c:6295 schedule+0xd2/0x260 kernel/sched/core.c:6368 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1963 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2136 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK> rcu: Stack dump where RCU GP kthread last ran: NMI backtrace for cpu 1 CPU: 1 PID: 17382 Comm: syz-executor.2 Not tainted 5.17.0-rc1-syzkaller-00186-g23a46422c561 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:458 print_other_cpu_stall kernel/rcu/tree_stall.h:563 [inline] check_cpu_stall kernel/rcu/tree_stall.h:706 [inline] rcu_pending kernel/rcu/tree.c:3919 [inline] rcu_sched_clock_irq+0x1f7c/0x2150 kernel/rcu/tree.c:2617 update_process_times+0x16d/0x200 kernel/time/timer.c:1785 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0x447/0xc90 kernel/smp.c:969 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 fb 7d 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 95 06 00 00 8b 43 08 31 RSP: 0018:ffffc90003b9fae0 EFLAGS: 00000246 RAX: 0000000000040000 RBX: ffff8880b9c41fa0 RCX: ffffc90002d01000 RDX: 0000000000040000 RSI: ffffffff816cdf55 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff816cdf7b R11: 0000000000000000 R12: ffffed10173883f5 R13: 0000000000000000 R14: ffff8880b9c41fa8 R15: 0000000000000001 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1135 kill_bdev block/bdev.c:76 [inline] set_blocksize+0x2b3/0x370 block/bdev.c:153 sb_set_blocksize+0x49/0x110 block/bdev.c:162 minix_fill_super+0x9e/0x1bd0 fs/minix/inode.c:191 mount_bdev+0x34d/0x410 fs/super.c:1367 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:2994 [inline] path_mount+0x1320/0x1fa0 fs/namespace.c:3324 do_mount fs/namespace.c:3337 [inline] __do_sys_mount fs/namespace.c:3545 [inline] __se_sys_mount fs/namespace.c:3522 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3522 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efd05c5e58a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efd045d1f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000180 RCX: 00007efd05c5e58a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007efd045d1fe0 RBP: 00007efd045d2020 R08: 00007efd045d2020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007efd045d1fe0 R15: 0000000020000200 </TASK> ---------------- Code disassembly (best guess): 0: c8 c1 c6 10 enterq $0xc6c1,$0x10 4: 31 f0 xor %esi,%eax 6: 8d 34 11 lea (%rcx,%rdx,1),%esi 9: 89 c1 mov %eax,%ecx b: 29 c2 sub %eax,%edx d: c1 c9 0d ror $0xd,%ecx 10: 01 f0 add %esi,%eax 12: 89 f7 mov %esi,%edi 14: 31 ca xor %ecx,%edx 16: 01 d0 add %edx,%eax 18: 29 d7 sub %edx,%edi 1a: 89 d1 mov %edx,%ecx 1c: 48 8b 54 24 38 mov 0x38(%rsp),%rdx 21: c1 c1 04 rol $0x4,%ecx 24: 31 f9 xor %edi,%ecx 26: 48 c1 e1 20 shl $0x20,%rcx * 2a: 48 09 c1 or %rax,%rcx <-- trapping instruction 2d: 48 c1 ea 03 shr $0x3,%rdx 31: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 38: fc ff df 3b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 3f: 48 rex.W