rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=632c/1/0x4000000000000000 softirq=79657/79657 fqs=0
rcu: 	(detected by 0, t=10502 jiffies, g=121133, q=529 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21298 Comm: syz-executor.4 Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1657 [inline]
RIP: 0010:__hrtimer_run_queues+0x46a/0xc00 kernel/time/hrtimer.c:1752
Code: 0a 63 00 48 0f a3 2d 75 79 36 0d 40 0f 92 c5 31 ff 89 ee e8 48 c0 10 00 40 84 ed 0f 85 69 05 00 00 e8 5a c4 10 00 8b 6c 24 28 <48> 89 e8 48 c1 e0 07 49 8d 84 06 c8 00 00 00 48 89 c2 48 89 04 24
RSP: 0018:ffffc900003e8e40 EFLAGS: 00000046
RAX: 0000000000010001 RBX: ffff888052390340 RCX: 0000000000000000
RDX: ffff88802d2fe180 RSI: ffffffff81733e36 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 1832aa1d3065543a
R13: ffff8880b992b980 R14: ffff8880b992b880 R15: 0000000000000001
FS:  0000555555a63400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5423f0e8c4 CR3: 000000005b230000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:prefetchw arch/x86/include/asm/processor.h:618 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3233 [inline]
RIP: 0010:slab_alloc mm/slab.c:3246 [inline]
RIP: 0010:__kmem_cache_alloc_lru mm/slab.c:3423 [inline]
RIP: 0010:kmem_cache_alloc+0x12d/0x3f0 mm/slab.c:3432
Code: 0f 84 4c 01 00 00 4d 85 f6 48 89 54 24 10 0f 85 a8 01 00 00 9c 58 f6 c4 02 0f 85 59 02 00 00 4d 85 f6 74 01 fb 48 8b 74 24 10 <0f> 0d 0e 66 90 49 83 7c 24 40 00 74 4d 44 23 2d af d6 d3 0c 31 c9
RSP: 0018:ffffc9000362fe48 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000cc0 RCX: 1ffffffff1d530c1
RDX: 0000000000000000 RSI: ffff88806ed30a40 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8ea9b797 R11: 0000000000000001 R12: ffff888140065000
R13: 0000000000000cc0 R14: 0000000000000200 R15: 0000000000000000
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:140
 getname_flags+0x9e/0xe0 include/linux/audit.h:319
 getname fs/namei.c:219 [inline]
 __do_sys_symlinkat fs/namei.c:4519 [inline]
 __se_sys_symlinkat fs/namei.c:4516 [inline]
 __x64_sys_symlinkat+0x7b/0xc0 fs/namei.c:4516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5423e8bbb7
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca3ee9688 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5423e8bbb7
RDX: 00007f5423ed7548 RSI: 00000000ffffff9c RDI: 00007ffca3ee9750
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffca3ee9520
R10: 00007ffca3ee93d7 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffca3ee9750
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g121133 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=83435
rcu: rcu_preempt kthread starved for 10502 jiffies! g121133 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:28536 pid:15    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xc9a/0x5880 kernel/sched/core.c:6710
 schedule+0xde/0x1a0 kernel/sched/core.c:6786
 schedule_timeout+0x14e/0x2b0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0x23a/0x360 kernel/rcu/tree.c:1808
 kthread+0x344/0x440 kernel/kthread.c:389
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </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 PID: 21298 Comm: syz-executor.4 Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x3d/0xb0 kernel/rcu/tree.c:695
Code: c7 c3 e8 6c 03 00 83 f8 07 89 c5 77 7a 48 8d 3c ed 00 5a 37 8c 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <75> 54 48 03 1c ed 00 5a 37 8c 48 b8 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc900003e8ca0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000036ce8 RCX: ffffffff81656415
RDX: 1ffffffff186eb41 RSI: 0000000000010002 RDI: ffffffff8c375a08
RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff1d536f2
R10: ffffffff8ea9b797 R11: 0000000000000001 R12: ffff888052390300
R13: 0000000000000000 R14: ffff888050b35510 R15: ffff88807888c000
FS:  0000555555a63400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5423f0e8c4 CR3: 000000005b230000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x4fb/0x670 kernel/locking/lockdep.c:5772
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 advance_sched+0x674/0xd20 net/sched/sch_taprio.c:992
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x604/0xc00 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:prefetchw arch/x86/include/asm/processor.h:618 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3233 [inline]
RIP: 0010:slab_alloc mm/slab.c:3246 [inline]
RIP: 0010:__kmem_cache_alloc_lru mm/slab.c:3423 [inline]
RIP: 0010:kmem_cache_alloc+0x12d/0x3f0 mm/slab.c:3432
Code: 0f 84 4c 01 00 00 4d 85 f6 48 89 54 24 10 0f 85 a8 01 00 00 9c 58 f6 c4 02 0f 85 59 02 00 00 4d 85 f6 74 01 fb 48 8b 74 24 10 <0f> 0d 0e 66 90 49 83 7c 24 40 00 74 4d 44 23 2d af d6 d3 0c 31 c9
RSP: 0018:ffffc9000362fe48 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000cc0 RCX: 1ffffffff1d530c1
RDX: 0000000000000000 RSI: ffff88806ed30a40 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8ea9b797 R11: 0000000000000001 R12: ffff888140065000
R13: 0000000000000cc0 R14: 0000000000000200 R15: 0000000000000000
 getname_flags.part.0+0x50/0x4f0 fs/namei.c:140
 getname_flags+0x9e/0xe0 include/linux/audit.h:319
 getname fs/namei.c:219 [inline]
 __do_sys_symlinkat fs/namei.c:4519 [inline]
 __se_sys_symlinkat fs/namei.c:4516 [inline]
 __x64_sys_symlinkat+0x7b/0xc0 fs/namei.c:4516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5423e8bbb7
Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffca3ee9688 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5423e8bbb7
RDX: 00007f5423ed7548 RSI: 00000000ffffff9c RDI: 00007ffca3ee9750
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffca3ee9520
R10: 00007ffca3ee93d7 R11: 0000000000000206 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffca3ee9750
 </TASK>