sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 6213078034 wd_nsec: 6213078163
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P19291
rcu: 	(detected by 0, t=10502 jiffies, g=53637, q=465 ncpus=2)
task:syz.5.5895      state:R  running task     stack:25896 pid:19291 tgid:19278 ppid:14391  task_flags:0x400140 flags:0x0000400a
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630
 print_other_cpu_stall+0xf7a/0x1340
 rcu_sched_clock_irq+0x9d1/0x1090
 update_process_times+0x23c/0x2f0
 tick_nohz_handler+0x39a/0x520
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 6b dd 54 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 b6 1d f6 65 8b 05 0c a0 27 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90000007a60 EFLAGS: 00000206
RAX: 6a5c40e8e0a68f00 RBX: 0000000000000a02 RCX: 6a5c40e8e0a68f00
RDX: 0000000000000002 RSI: ffffffff8d9792e3 RDI: 0000000000000001
RBP: ffffc90000007af0 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88804b025900 R15: 1ffff92000000f4c
 __mod_timer+0xb37/0xf30
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 b2 e8 f2 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90002e3fc20 EFLAGS: 00000206
RAX: 6a5c40e8e0a68f00 RBX: 1ffff920005c7f8c RCX: 6a5c40e8e0a68f00
RDX: 0000000000000006 RSI: ffffffff8d9792e3 RDI: ffffffff8be30a00
RBP: ffffc90002e3fd10 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8e1418a0
 __rcu_read_unlock+0x84/0xe0
 dput+0x197/0x2b0
 __fput+0x68e/0xa70
 fput_close_sync+0x119/0x200
 __x64_sys_close+0x7f/0x110
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff96b78ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff96c67a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007ff96b9b6090 RCX: 00007ff96b78ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007ff96b811e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff96b9b6128 R14: 00007ff96b9b6090 R15: 00007ffe95590e98
 </TASK>
rcu: rcu_preempt kthread starved for 10518 jiffies! g53637 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:26696 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1737/0x4d30
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 19294 Comm: syz.4.5902 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_queued_spin_lock_slowpath+0xaf/0x8e0
Code: 00 00 00 c7 44 24 60 00 00 00 00 0f 1f 44 00 00 4c 8d 74 24 60 49 89 df 49 c1 ef 03 41 bd 01 00 00 00 eb 06 89 44 24 60 f3 90 <48> 89 df be 04 00 00 00 e8 54 66 b0 f6 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90002d1f840 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff88801dc46dc8 RCX: ffffffff8b726fbc
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801dc46dc8
RBP: ffffc90002d1f938 R08: ffff88801dc46dcb R09: 1ffff11003b88db9
R10: dffffc0000000000 R11: ffffed1003b88dba R12: 1ffff920005a3f10
R13: 0000000000000001 R14: ffffc90002d1f8a0 R15: 1ffff11003b88db9
FS:  00007f8f421f66c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fa63fff CR3: 000000010ae60000 CR4: 00000000000006f0
DR0: 00000000000000fd DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 d_instantiate+0x64/0xa0
 alloc_file_pseudo+0xf6/0x210
 anon_inode_getfd+0xca/0x1b0
 bpf_prog_load+0x1465/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8f43f8ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8f421f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f8f441b5fa0 RCX: 00007f8f43f8ebe9
RDX: 0000000000000090 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f8f44011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8f441b6038 R14: 00007f8f441b5fa0 R15: 00007ffd51ded858
 </TASK>
