rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=573c/1/0x4000000000000000 softirq=79851/79851 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P15476/1:b..l P22909/1:b..l P20291/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=110925, q=117 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6529 Comm: syz-executor.1 Not tainted 6.5.0-rc6-syzkaller-00243-g12e6ccedb311 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x60 kernel/kcov.c:206
Code: 00 00 f3 0f 1e fa 53 48 89 fb e8 13 00 00 00 48 8b 3d 34 c1 0c 0d 48 89 de 5b e9 43 fd 57 00 0f 1f 00 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 00 fd 77 7e 65 8b 15 01 fd 77 7e f7 c2 00 01 ff 00 74
RSP: 0018:ffffc90000007d38 EFLAGS: 00000002
RAX: ffffffff817b4f76 RBX: 0000000000000001 RCX: ffffffff817b4f3d
RDX: ffff888027e11dc0 RSI: ffffffff8b58adc0 RDI: ffffffff8b58ad80
RBP: 0000000000000001 R08: ffffffff817b4f63 R09: 1ffffffff1d30ee5
R10: dffffc0000000000 R11: fffffbfff1d30ee6 R12: ffff8880b982b740
R13: ffff8880b982b840 R14: ffff888014eb7340 R15: dffffc0000000000
FS:  0000555556bc3480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5f5cac66e4 CR3: 000000003a68f000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_hrtimer_cancel include/trace/events/timer.h:297 [inline]
 debug_deactivate+0x96/0x1f0 kernel/time/hrtimer.c:484
 __run_hrtimer kernel/time/hrtimer.c:1656 [inline]
 __hrtimer_run_queues+0x321/0xd10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
 __sysvec_apic_timer_interrupt+0x13f/0x480 arch/x86/kernel/apic/apic.c:1115
 sysvec_apic_timer_interrupt+0x90/0xb0 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:should_resched arch/x86/include/asm/preempt.h:104 [inline]
RIP: 0010:__local_bh_enable_ip+0x170/0x1f0 kernel/softirq.c:388
Code: 8b e8 d4 90 68 09 65 66 8b 05 1c 5a af 7e 66 85 c0 75 57 bf 01 00 00 00 e8 cd 82 0a 00 e8 78 1d 3e 00 fb 65 8b 05 e8 59 af 7e <85> c0 75 05 e8 67 2b ac ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc900067a7960 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 1ffff92000cf4f30 RCX: ffffffff91fac203
RDX: dffffc0000000000 RSI: ffffffff8b0a9860 RDI: ffffffff8b58ade0
RBP: ffffc900067a7a10 R08: ffffffff8e98772f R09: 1ffffffff1d30ee5
R10: dffffc0000000000 R11: fffffbfff1d30ee6 R12: dffffc0000000000
R13: 1ffff92000cf4f34 R14: ffffc900067a79a0 R15: 0000000000000201
 do_ip_getsockopt+0x13da/0x2790 net/ipv4/ip_sockglue.c:1775
 ip_getsockopt+0xed/0x2e0 net/ipv4/ip_sockglue.c:1808
 tcp_getsockopt+0x160/0x1c0 net/ipv4/tcp.c:4304
 __sys_getsockopt+0x2b9/0x5e0 net/socket.c:2307
 __do_sys_getsockopt net/socket.c:2322 [inline]
 __se_sys_getsockopt net/socket.c:2319 [inline]
 __x64_sys_getsockopt+0xb5/0xd0 net/socket.c:2319
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f336c47e68a
Code: c4 c1 e0 1a 0d 00 00 04 00 89 01 e9 e0 fe ff ff e8 3b 05 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 b0 ff ff ff f7
RSP: 002b:00007fff28a929d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007fff28a92a60 RCX: 00007f336c47e68a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fff28a929fc R09: 00007fff28a92e17
R10: 00007fff28a92a60 R11: 0000000000000202 R12: 00007f336c57a140
R13: 00007fff28a929fc R14: 0000000000000000 R15: 00007f336c57aec0
 </TASK>
task:kworker/u4:22   state:R  running task     stack:24680 pid:20291 ppid:2      flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7022
 irqentry_exit+0x57/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_acquire+0x25a/0x520 kernel/locking/lockdep.c:5765
Code: 2b 00 74 08 4c 89 f7 e8 c4 7a 79 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000c6f7a40 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920018def54 RCX: ffffffff816b2607
RDX: 0000000000000000 RSI: ffffffff8b0aa9e0 RDI: ffffffff8b58ade0
RBP: ffffc9000c6f7b98 R08: dffffc0000000000 R09: 1ffffffff20f6860
R10: dffffc0000000000 R11: fffffbfff20f6861 R12: 1ffff920018def50
R13: dffffc0000000000 R14: ffffc9000c6f7aa0 R15: 0000000000000246
 rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:303
 rcu_read_lock include/linux/rcupdate.h:749 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0xc5/0x5c0 net/batman-adv/network-coding.c:719
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
task:syz-executor.5  state:R  running task     stack:20872 pid:22909 ppid:6520   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7022
 irqentry_exit+0x57/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:__unwind_start+0x4e8/0x720 arch/x86/kernel/unwind_orc.c:757
Code: ba 00 00 00 00 00 fc ff df 8b 2c 24 0f 85 fc fb ff ff 40 84 ed 0f 84 0e 01 00 00 4c 89 f0 48 c1 e8 03 48 89 04 24 0f b6 04 10 <84> c0 0f 85 df 01 00 00 41 83 3e 00 0f 84 d2 fb ff ff 4d 8d 7e 08
RSP: 0018:ffffc9000357ee80 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc9000357ee80 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffc90003580000 RDI: ffffc9000357ee80
RBP: ffffc9000357ef01 R08: ffffc9000357ef01 R09: 0000000000000000
R10: ffffc9000357eee0 R11: fffff520006afde8 R12: ffffc9000357ef00
R13: ffffc9000357ef08 R14: ffffc9000357eee0 R15: 1ffff920006afde1
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xdf/0x140 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
 save_stack+0xfa/0x1e0 mm/page_owner.c:128
 __reset_page_owner+0x4f/0x190 mm/page_owner.c:149
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1161 [inline]
 free_unref_page_prepare+0x903/0xa30 mm/page_alloc.c:2348
 free_unref_page_list+0x596/0x830 mm/page_alloc.c:2489
 release_pages+0x2193/0x2470 mm/swap.c:1042
 __folio_batch_release+0x84/0x100 mm/swap.c:1062
 folio_batch_release include/linux/pagevec.h:83 [inline]
 truncate_inode_pages_range+0x45d/0x11b0 mm/truncate.c:372
 ext4_evict_inode+0x21c/0xf20 fs/ext4/inode.c:193
 evict+0x2a4/0x620 fs/inode.c:664
 __dentry_kill+0x436/0x650 fs/dcache.c:607
 dentry_kill+0xbb/0x290
 dput+0x1f3/0x420 fs/dcache.c:913
 __fput+0x628/0x950 fs/file_table.c:392
 task_work_run+0x24a/0x300 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x68f/0x2290 kernel/exit.c:874
 do_group_exit+0x206/0x2c0 kernel/exit.c:1024
 get_signal+0x1709/0x17e0 kernel/signal.c:2881
 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:308
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:310
 exc_page_fault+0x4e7/0x7c0 arch/x86/mm/fault.c:1545
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f5f5be7caf1
RSP: 002b:0000000001000000 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f5f5bf9bf80 RCX: 00007f5f5be7cae9
RDX: 0000000000000000 RSI: 0000000001000000 RDI: 0000000000000000
RBP: 00007f5f5bec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f5f5bf9bf80 R15: 00007ffdeb0fdea8
 </TASK>
task:kworker/u4:21   state:R  running task     stack:25256 pid:15476 ppid:2      flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 preempt_schedule_irq+0xfb/0x1b0 kernel/sched/core.c:7022
 irqentry_exit+0x57/0x80 kernel/entry/common.c:433
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:lock_acquire+0x25a/0x520 kernel/locking/lockdep.c:5765
Code: 2b 00 74 08 4c 89 f7 e8 c4 7a 79 00 f6 44 24 61 02 0f 85 84 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900035af8a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920006b5f20 RCX: ffffffff816b2607
RDX: 0000000000000000 RSI: ffffffff8b0aa9e0 RDI: ffffffff8b58ade0
RBP: ffffc900035afa00 R08: dffffc0000000000 R09: 1ffffffff20f6860
R10: dffffc0000000000 R11: fffffbfff20f6861 R12: 1ffff920006b5f1c
R13: dffffc0000000000 R14: ffffc900035af900 R15: 0000000000000246
 rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:303
 rcu_read_lock include/linux/rcupdate.h:749 [inline]
 inet_twsk_purge+0x128/0xad0 net/ipv4/inet_timewait_sock.c:292
 ops_exit_list net/core/net_namespace.c:175 [inline]
 cleanup_net+0x767/0xb80 net/core/net_namespace.c:614
 process_one_work+0x92c/0x12c0 kernel/workqueue.c:2600
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2751
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
rcu: rcu_preempt kthread starved for 10502 jiffies! g110925 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:26536 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1873/0x48f0 kernel/sched/core.c:6710
 schedule+0xc3/0x180 kernel/sched/core.c:6786
 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1808
 kthread+0x2b8/0x350 kernel/kthread.c:389
 ret_from_fork+0x2e/0x60 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 22977 Comm: syz-executor.3 Not tainted 6.5.0-rc6-syzkaller-00243-g12e6ccedb311 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline]
RIP: 0010:smp_call_function_many_cond+0x1856/0x27d0 kernel/smp.c:835
Code: 03 84 c0 75 7e 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 de 17 0b 00 41 83 e5 01 4c 8b 6c 24 60 75 07 e8 1e 14 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 04 24
RSP: 0018:ffffc9000394f7a0 EFLAGS: 00000246
RAX: ffffffff8180a437 RBX: 1ffff1101730897d RCX: 0000000000040000
RDX: ffffc9000f0ba000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000394f990 R08: ffffffff8180a402 R09: 1ffffffff1d30ee5
R10: dffffc0000000000 R11: fffffbfff1d30ee6 R12: ffff8880b9844be8
R13: ffff8880b993d0c8 R14: ffff8880b993d0c0 R15: 0000000000000000
FS:  00007f11f9e716c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33229000 CR3: 000000004b61c000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 clock_was_set+0x779/0x830 kernel/time/hrtimer.c:976
 timekeeping_inject_offset+0x663/0x710 kernel/time/timekeeping.c:1395
 do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2444
 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
 __do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline]
 __se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline]
 __x64_sys_clock_adjtime+0x1e0/0x290 kernel/time/posix-timers.c:1162
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f11f907cae9
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:00007f11f9e710c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f11f919c050 RCX: 00007f11f907cae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f11f90c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f11f919c050 R15: 00007ffe573d28b8
 </TASK>