rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=dc44/1/0x4000000000000000 softirq=78713/78715 fqs=0
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P24129/1:b..l
(detected by 0, t=10502 jiffies, g=102125, q=194 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 24122 Comm: syz-executor.4 Not tainted 6.1.77-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:mark_lock+0xa2/0x340 kernel/locking/lockdep.c:4606
Code: 00 8b 1b 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 12 49 90 be 08 00 00 00 e8 a6 30 77 00 48 0f a3 1d ce 58 de 0e <73> 11 48 8d 04 5b 48 c1 e0 06 48 8d 98 20 71 18 90 eb 23 48 c7 c0
RSP: 0018:ffffc900001e0a38 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 000000000000005e RCX: ffffffff816ab94a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90491228
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff2092246
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888023170ad8
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888023170b08
FS: 00007f573374e6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2db26000 CR3: 000000004c213000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_usage kernel/locking/lockdep.c:4520 [inline]
__lock_acquire+0xb40/0x1f80 kernel/locking/lockdep.c:5003
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x6d3/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 02 4d 4d f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 87 a2 c9 f6 65 8b 05 c8 d3 6d 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900058ef8c0 EFLAGS: 00000206
RAX: ca9a16782830c700 RBX: 1ffff92000b1df1c RCX: ffffffff91c89103
RDX: dffffc0000000000 RSI: ffffffff8aebecc0 RDI: 0000000000000001
RBP: ffffc900058ef958 R08: dffffc0000000000 R09: ffffed100a5d5c92
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000b1df18 R14: ffffc900058ef8e0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
timerfd_clock_was_set+0x1dc/0x2e0 fs/timerfd.c:113
clock_was_set+0x86e/0x900 kernel/time/hrtimer.c:980
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1395
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2444
do_clock_adjtime kernel/time/posix-timers.c:1149 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5732a7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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
RSP: 002b:00007f573374e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f5732bac050 RCX: 00007f5732a7dda9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f5732aca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f5732bac050 R15: 00007ffdc6cc5fc8
task:syz-executor.0 state:R running task stack:27416 pid:24129 ppid:19943 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:433
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:filter_irq_stacks+0x4b/0xa0 kernel/stacktrace.c:395
Code: 00 00 c0 8a 48 89 fb eb 0c 49 ff c7 48 83 c3 08 4d 39 fc 74 4f 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 48 89 df e8 8b 9f 69 00 4b 8b 04 fe 48 39 e8 72 0c 48 c7 c1
RSP: 0018:ffffc90006187610 EFLAGS: 00000246
RAX: 1ffff92000c30ed7 RBX: ffffc900061876b8 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 000000000000000d RDI: ffffc900061876b0
RBP: ffffffff8aa00190 R08: 0000000000000001 R09: fffffbfff1ce6876
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000d
R13: ffffffff8ac00000 R14: ffffc900061876b0 R15: 0000000000000001
__stack_depot_save+0x36/0x470 lib/stackdepot.c:439
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x60/0x70 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
kmalloc include/linux/slab.h:553 [inline]
kzalloc include/linux/slab.h:689 [inline]
sctp_add_bind_addr+0x85/0x3a0 net/sctp/bind_addr.c:150
sctp_copy_local_addr_list+0x30d/0x4f0 net/sctp/protocol.c:165
sctp_bind_addr_copy+0xa9/0x3b0 net/sctp/bind_addr.c:56
sctp_connect_new_asoc+0x2e5/0x6a0 net/sctp/socket.c:1093
__sctp_connect+0x657/0xe10 net/sctp/socket.c:1195
__sctp_setsockopt_connectx net/sctp/socket.c:1334 [inline]
sctp_setsockopt_connectx+0x17d/0x290 net/sctp/socket.c:1361
sctp_setsockopt+0x83b/0x10d0 net/sctp/socket.c:4620
__sys_setsockopt+0x57e/0xa00 net/socket.c:2283
__do_sys_setsockopt net/socket.c:2294 [inline]
__se_sys_setsockopt net/socket.c:2291 [inline]
__x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2291
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fec1aa7dda9
RSP: 002b:00007fec1b8500c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fec1ababf80 RCX: 00007fec1aa7dda9
RDX: 000000000000006e RSI: 0000000000000084 RDI: 0000000000000003
RBP: 00007fec1aaca47a R08: 000000000000001c R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fec1ababf80 R15: 00007ffd088b9e48
rcu: rcu_preempt kthread starved for 10502 jiffies! g102125 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26680 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2d2/0x1120 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 22095 Comm: kworker/u4:10 Not tainted 6.1.77-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fb0/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 ec 42 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 77 3f 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc90006b275a0 EFLAGS: 00000293
RAX: ffffffff817f3bcb RBX: 1ffff11017328031 RCX: ffff88801b755940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90006b27980 R08: ffffffff817f3b94 R09: fffffbfff2092245
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8880b9940188
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32124000 CR3: 000000000ce8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1329 [inline]
text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1529
text_poke_flush arch/x86/kernel/alternative.c:1720 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1727
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306