rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 ticks this GP) idle=a4ec/1/0x4000000000000000 softirq=73565/73565 fqs=0
rcu: 	(detected by 1, t=10504 jiffies, g=72593, q=207 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 29 Comm: kauditd Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:do_raw_write_seqcount_barrier include/linux/seqlock.h:551 [inline]
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1717 [inline]
RIP: 0010:__hrtimer_run_queues+0x32a/0xae0 kernel/time/hrtimer.c:1755
Code: de e8 9a c7 12 00 84 db 0f 84 e3 05 00 00 e8 ad c5 12 00 48 8b 54 24 10 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e b2 06 00 00 41 83 45 10 01 48 b8 00 00 00
RSP: 0018:ffffc90000007e30 EFLAGS: 00000806
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8b146238
RDX: 1ffff110170c595a RSI: ffffffff817ab5a3 RDI: ffff88807c734340
RBP: 0000000000000001 R08: 0000000000000006 R09: ffff88807c734340
R10: ffff88807c734340 R11: ffffffff8b6f8740 R12: ffff88807c734340
R13: ffff8880b862cac0 R14: ffff8880b862c9c0 R15: ffffffff893256b0
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33d1fffc CR3: 0000000034a46000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1817
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x9a4/0xc60 kernel/printk/printk.c:3181
Code: 00 e8 f0 98 27 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 7e ee 1f 00 48 85 db 0f 85 55 01 00 00 e8 00 ec 1f 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 f5 75 81
RSP: 0018:ffffc90000a57a18 EFLAGS: 00000293
RAX: ffffffff8ee8ea78 RBX: 0000000000000000 RCX: ffffffff816d8f42
RDX: ffff88801d6f2440 RSI: ffffffff816d8f50 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8ee8ea78
R13: ffffffff8ee8ea20 R14: ffffc90000a57aa8 R15: dffffc0000000000
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
 _printk+0xc8/0x100 kernel/printk/printk.c:2432
 kauditd_printk_skb kernel/audit.c:546 [inline]
 kauditd_hold_skb+0x205/0x250 kernel/audit.c:581
 kauditd_send_queue+0x236/0x290 kernel/audit.c:766
 kauditd_thread+0x611/0xa60 kernel/audit.c:890
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10503 jiffies! g72593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=69706
rcu: rcu_preempt kthread starved for 10504 jiffies! g72593 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28400 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0xe55/0x5740 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6782
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz.9.2976:17725]
Modules linked in:
irq event stamp: 843112
hardirqs last  enabled at (843111): [<ffffffff8b23600b>] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357
hardirqs last disabled at (843112): [<ffffffff8b23478e>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last  enabled at (843102): [<ffffffff81506edb>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (843102): [<ffffffff81506edb>] handle_softirqs+0x5bb/0x8f0 kernel/softirq.c:582
softirqs last disabled at (842997): [<ffffffff8150796b>] __do_softirq kernel/softirq.c:588 [inline]
softirqs last disabled at (842997): [<ffffffff8150796b>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (842997): [<ffffffff8150796b>] __irq_exit_rcu kernel/softirq.c:637 [inline]
softirqs last disabled at (842997): [<ffffffff8150796b>] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
CPU: 1 UID: 0 PID: 17725 Comm: syz.9.2976 Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x458/0x1300 kernel/smp.c:884
Code: 0c 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 8a 1b 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 a4 0c 00 00 8b 43 08 31
RSP: 0018:ffffc9000dd97888 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b8646b80 RCX: ffffffff81815fec
RDX: ffff88802d232440 RSI: ffffffff81815fc6 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170c8d71
R13: 0000000000000001 R14: ffff8880b8646b88 R15: ffff8880b8740100
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c35b4a5 CR3: 0000000024896000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1051
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:938 [inline]
 flush_tlb_mm_range+0x289/0x330 arch/x86/mm/tlb.c:1024
 tlb_flush arch/x86/include/asm/tlb.h:20 [inline]
 tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:465 [inline]
 tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:455 [inline]
 tlb_flush_mmu mm/mmu_gather.c:372 [inline]
 tlb_finish_mmu+0x3c9/0x7b0 mm/mmu_gather.c:465
 exit_mmap+0x3df/0xb30 mm/mmap.c:1926
 __mmput+0x12a/0x480 kernel/fork.c:1348
 mmput+0x62/0x70 kernel/fork.c:1370
 exit_mm kernel/exit.c:571 [inline]
 do_exit+0x9bf/0x2d70 kernel/exit.c:926
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f3b57e719
Code: Unable to access opcode bytes at 0x7f7f3b57e6ef.
RSP: 002b:00007f7f3c4050e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007f7f3b735f88 RCX: 00007f7f3b57e719
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7f3b735f8c
RBP: 00007f7f3b735f80 R08: 00007f7f3c406080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f3b735f8c
R13: 0000000000000000 R14: 00007ffe17ac5460 R15: 00007ffe17ac5548
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 29 Comm: kauditd Not tainted 6.12.0-rc6-syzkaller-00099-g7758b206117d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
RIP: 0010:lock_release+0x17b/0x6f0 kernel/locking/lockdep.c:5845
Code: 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 00 0f 85 fa 04 00 00 49 81 3c 24 20 d7 79 93 0f 84 65 02 00 00 9c 8f 04 24 fa <48> c7 c7 00 d3 6c 8b e8 09 cf b8 09 48 89 ea 83 e5 07 48 b8 00 00
RSP: 0018:ffffc90000007ca8 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: 1ffff92000000f97 RCX: ffffffff816a9cf9
RDX: 1ffff1100f8e6860 RSI: 0000000000000000 RDI: ffff88801d6f2f1c
RBP: ffffffff905f8c18 R08: 0000000000000000 R09: fffffbfff20beb21
R10: ffffffff905f590f R11: 0000000000000000 R12: ffff88807c734300
R13: ffff88807ea56400 R14: ffff88801d6f2440 R15: ffff88807ea55c00
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33d1fffc CR3: 0000000034a46000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 advance_sched+0x611/0xc60 net/sched/sch_taprio.c:981
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1817
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0x9a4/0xc60 kernel/printk/printk.c:3181
Code: 00 e8 f0 98 27 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 7e ee 1f 00 48 85 db 0f 85 55 01 00 00 e8 00 ec 1f 00 fb 4c 89 e0 <48> c1 e8 03 42 80 3c 38 00 0f 84 11 ff ff ff 4c 89 e7 e8 f5 75 81
RSP: 0018:ffffc90000a57a18 EFLAGS: 00000293
RAX: ffffffff8ee8ea78 RBX: 0000000000000000 RCX: ffffffff816d8f42
RDX: ffff88801d6f2440 RSI: ffffffff816d8f50 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8ee8ea78
R13: ffffffff8ee8ea20 R14: ffffc90000a57aa8 R15: dffffc0000000000
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
 _printk+0xc8/0x100 kernel/printk/printk.c:2432
 kauditd_printk_skb kernel/audit.c:546 [inline]
 kauditd_hold_skb+0x205/0x250 kernel/audit.c:581
 kauditd_send_queue+0x236/0x290 kernel/audit.c:766
 kauditd_thread+0x611/0xa60 kernel/audit.c:890
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>