rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=949c/1/0x4000000000000000 softirq=48756/48756 fqs=25
	(detected by 1, t=10502 jiffies, g=73697, q=63 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 14297 Comm: syz-executor.1 Not tainted 6.1.39-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:check_region_inline mm/kasan/generic.c:175 [inline]
RIP: 0010:kasan_check_range+0x1d/0x290 mm/kasan/generic.c:189
Code: c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 53 b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5 0f 82 5a 02 00 00 <48> 89 fd 48 c1 ed 2f 81 fd ff ff 01 00 0f 82 47 02 00 00 48 89 fb
RSP: 0018:ffffc900000079f0 EFLAGS: 00000096
RAX: 0000000000000001 RBX: 0000000000000bea RCX: ffffffff816a3f0a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90296398
RBP: ffffffff902963a0 R08: dffffc0000000000 R09: fffffbfff2052c74
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802891c658
R13: dffffc0000000000 R14: 0000000000000100 R15: ffff88802891c688
FS:  00007f3d823fe6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d823fed58 CR3: 000000007dbc5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 mark_lock+0x9a/0x340 kernel/locking/lockdep.c:4613
 mark_usage kernel/locking/lockdep.c:4556 [inline]
 __lock_acquire+0xc6a/0x1f80 kernel/locking/lockdep.c:5010
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:350 [inline]
 advance_sched+0x47/0x940 net/sched/sch_taprio.c:700
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x5e5/0xe50 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
 </IRQ>
 <TASK>
 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 02 2f 52 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 27 e3 cf f6 65 8b 05 a8 5f 74 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc900063bf920 EFLAGS: 00000206
RAX: e45d6f189cb4a700 RBX: 1ffff92000c77f28 RCX: ffffffff816a3f0a
RDX: dffffc0000000000 RSI: ffffffff8aebd320 RDI: 0000000000000001
RBP: ffffc900063bf9b0 R08: dffffc0000000000 R09: fffffbfff2052c45
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000c77f24 R14: ffffc900063bf940 R15: 0000000000000246
 clock_was_set+0x179/0x900 kernel/time/hrtimer.c:970
 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: 0033:0x7f3d8387cb29
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:00007f3d823fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f3d8399c050 RCX: 00007f3d8387cb29
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f3d838c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3d8399c050 R15: 00007ffeb797db88
 </TASK>
rcu: rcu_preempt kthread starved for 10370 jiffies! g73697 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:26712 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x132c/0x4330 kernel/sched/core.c:6554
 schedule+0xbf/0x180 kernel/sched/core.c:6630
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x2c2/0x1010 kernel/rcu/tree.c:1661
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1860
 kthread+0x26e/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 3639 Comm: kworker/1:3 Not tainted 6.1.39-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Workqueue: events fqdir_free_fn
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_single+0x4a3/0x2610 kernel/smp.c:776
Code: b6 04 23 84 c0 0f 85 70 01 00 00 45 8b 2e 44 89 ee 83 e6 01 31 ff e8 fc 5a 0b 00 41 83 e5 01 75 07 e8 91 57 0b 00 eb 3e f3 90 <42> 0f b6 04 23 84 c0 75 10 41 f7 06 01 00 00 00 74 25 e8 76 57 0b
RSP: 0018:ffffc90004497820 EFLAGS: 00000293
RAX: ffffffff817e836a RBX: 1ffff92000892f21 RCX: ffff88801ec8d940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004497ba0 R08: ffffffff817e8344 R09: fffff52000892ecd
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: ffffc90004497908 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f74135063c7 CR3: 00000000375ce000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 rcu_barrier+0x323/0x5f0 kernel/rcu/tree.c:4017
 fqdir_free_fn+0x2e/0x130 net/ipv4/inet_fragment.c:163
 process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
 worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
 kthread+0x26e/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>