rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 ticks this GP) idle=066c/1/0x4000000000000000 softirq=177156/177156 fqs=5
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P26052/1:b..l
(detected by 1, t=10502 jiffies, g=279609, q=36 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13273 Comm: syz-executor.1 Not tainted 6.1.65-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1683 [inline]
RIP: 0010:__hrtimer_run_queues+0x573/0xe50 kernel/time/hrtimer.c:1749
Code: df 4d 89 e5 0f 84 ba 02 00 00 e8 18 d2 10 00 eb 12 e8 11 d2 10 00 49 bf 00 00 00 00 00 fc ff df 4d 89 e5 4d 89 f4 48 8b 04 24 <48> 8d 58 3b 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 56 03
RSP: 0018:ffffc90000007d60 EFLAGS: 00000046
RAX: ffff888079c7a340 RBX: 0000000000000001 RCX: ffff88801a2ebb80
RDX: 0000000000010001 RSI: ffffffff8b3cf3a0 RDI: ffffffff8b3cf360
RBP: ffffc90000007eb0 R08: ffffffff8179c044 R09: fffffbfff1ce67a6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b982a4c0
R13: ffffffff88b47b70 R14: ffff8880b982a4c0 R15: dffffc0000000000
FS: 00007ff258f0d6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff258f0dd58 CR3: 0000000018b0d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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:649
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 22 00 4e f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 c7 4d ca f6 65 8b 05 78 7f 6e 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc9000380f8c0 EFLAGS: 00000206
RAX: feeb5a74b2d3d500 RBX: 1ffff92000701f1c RCX: ffffffff91c86103
RDX: dffffc0000000000 RSI: ffffffff8aebe4a0 RDI: 0000000000000001
RBP: ffffc9000380f958 R08: dffffc0000000000 R09: ffffed10125e7792
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000701f18 R14: ffffc9000380f8e0 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:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff25827cae9
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:00007ff258f0d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007ff25839c050 RCX: 00007ff25827cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007ff2582c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007ff25839c050 R15: 00007ffe7ad52e48
task:kworker/u4:21 state:R running task stack:21400 pid:26052 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
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:649
RIP: 0010:inet_twsk_purge+0x716/0xb60 net/ipv4/inet_timewait_sock.c:337
Code: 38 c1 0f 8c dd fe ff ff 48 8d bc 24 a0 00 00 00 e8 3f 38 da f8 e9 cb fe ff ff e8 f5 da 82 f8 49 d1 ed 4c 89 ef 48 8b 5c 24 58 <48> 89 de e8 c2 dc 82 f8 49 39 dd 0f 84 fe 02 00 00 e8 d4 da 82 f8
RSP: 0018:ffffc90015a17a60 EFLAGS: 00000203
RAX: ffffffff8907b78b RBX: 000000000005126e RCX: ffff88807872d940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000005126e
RBP: ffffc90015a17b70 R08: ffffffff8907b289 R09: fffffbfff2091c45
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 000000000005126e R14: ffffffff920dffc0 R15: ffff888028e89370
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:601
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
rcu: rcu_preempt kthread starved for 10492 jiffies! g279609 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: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:1674
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1873
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: 1 PID: 667 Comm: kworker/u4:0 Not tainted 6.1.65-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
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:ffffc90004b0f5a0 EFLAGS: 00000293
RAX: ffffffff817f532b RBX: 1ffff1101730841d RCX: ffff88807b5cbb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004b0f980 R08: ffffffff817f52f4 R09: fffffbfff2091c45
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b98420e8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4895b78038 CR3: 000000000ce8e000 CR4: 00000000003506e0
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