rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=a1cc/1/0x4000000000000000 softirq=107769/107769 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5650/1:b..l
rcu: 	(detected by 1, t=10506 jiffies, g=188161, q=33 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31516 Comm: syz-executor.5 Not tainted 6.4.0-rc1-next-20230508-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:check_preemption_disabled+0xa/0x170 lib/smp_processor_id.c:13
Code: 1f 44 00 00 0f 0b 0f 1f 44 00 00 5b e9 6f fb ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 56 41 55 49 89 f5 41 54 55 <48> 89 fd 53 0f 1f 44 00 00 65 44 8b 25 f1 c6 f4 75 65 8b 1d e6 c6
RSP: 0018:ffffc90000007c28 EFLAGS: 00000046
RAX: 0000000000000001 RBX: d6bf87c490213bdc RCX: ffffc90000007ca0
RDX: 1ffff1100410750f RSI: ffffffff8a4c7080 RDI: ffffffff8aa71560
RBP: 1ffff92000000f8c R08: 0000000000000001 R09: ffffffff8e7a87d7
R10: fffffbfff1cf50fa R11: ffffc90000007ff8 R12: 0000000000000001
R13: ffffffff8a4c7080 R14: 0000000000000002 R15: ffff888020839dc0
FS:  00007f98679fe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555fe5848 CR3: 000000003e964000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 lock_release+0x3be/0x670 kernel/locking/lockdep.c:5727
 debug_objects_fill_pool lib/debugobjects.c:607 [inline]
 debug_object_activate+0x141/0x4f0 lib/debugobjects.c:704
 debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
 debug_activate kernel/time/hrtimer.c:475 [inline]
 enqueue_hrtimer+0x27/0x320 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1702 [inline]
 __hrtimer_run_queues+0x8d9/0xa30 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_pc+0x60/0x70 kernel/kcov.c:225
Code: 82 e8 15 00 00 83 f8 02 75 20 48 8b 8a f0 15 00 00 8b 92 ec 15 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 01 48 89 34 c1 <c3> 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 55 41 54 49 89
RSP: 0018:ffffc90004d2fca0 EFLAGS: 00000212
RAX: 0000000000000177 RBX: 0000000000000000 RCX: ffffc9000eaaa000
RDX: 0000000000040000 RSI: ffffffff8178ae62 RDI: 0000000000000005
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f9866dabf8c
R13: 0000000000000000 R14: 00000000000f4240 R15: 00000000ffffffff
 futex_wake+0x102/0x490 kernel/futex/waitwake.c:158
 do_futex+0x268/0x360 kernel/futex/syscalls.c:111
 __do_sys_futex kernel/futex/syscalls.c:183 [inline]
 __se_sys_futex kernel/futex/syscalls.c:164 [inline]
 __x64_sys_futex+0x1ca/0x4d0 kernel/futex/syscalls.c:164
 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: 0033:0x7f9866c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98679fe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f9866dabf88 RCX: 00007f9866c8c169
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f9866dabf8c
RBP: 00007f9866dabf80 R08: 00007ffef0bfa080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9866dabf8c
R13: 00007ffef0b0129f R14: 00007f98679fe300 R15: 0000000000022000
 </TASK>
task:kworker/u4:8    state:R  running task     stack:24264 pid:5650  ppid:2      flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:6981
 irqentry_exit+0x35/0x80 kernel/entry/common.c:433
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650
RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x70 kernel/kcov.c:207
Code: 81 e1 00 01 00 00 65 48 8b 14 25 c0 bb 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 0c 16 00 00 85 c0 74 2b 8b 82 e8 15 00 00 <83> f8 02 75 20 48 8b 8a f0 15 00 00 8b 92 ec 15 00 00 48 8b 01 48
RSP: 0018:ffffc9000c547c88 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888038e10f08 RCX: 0000000000000000
RDX: ffff88803d6a8000 RSI: ffffffff89d9ba6c RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffff11005f677fa R12: ffffc9000c547db0
R13: 0000000000000000 R14: dffffc0000000000 R15: 00000000000001e1
 rcu_read_lock include/linux/rcupdate.h:774 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
 batadv_nc_worker+0xbbc/0xfe0 net/batman-adv/network-coding.c:719
 process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
 kthread+0x344/0x440 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g188161 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=124607
rcu: rcu_preempt kthread starved for 10506 jiffies! g188161 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:28312 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x1d15/0x5790 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 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:379
 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31516 Comm: syz-executor.5 Not tainted 6.4.0-rc1-next-20230508-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:advance_sched+0x1f4/0xd20 net/sched/sch_taprio.c:946
Code: 4d 85 ff 0f 84 37 08 00 00 e8 98 ea 44 f9 49 8d bf 50 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 5f 0a 00 00 48 8b 44 24 08 4c 8b a0 50 01 00 00 48 8b 04 24
RSP: 0018:ffffc90000007d90 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88807eb3a340 RCX: 0000000000000000
RDX: 1ffff1100ecea02a RSI: ffffffff883f4b78 RDI: ffff888076750150
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: ffffc90000007ff8 R12: 0000000000000001
R13: ffff8880b982b940 R14: ffff8880b982b840 R15: ffff888076750000
FS:  00007f98679fe700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555fe5848 CR3: 000000003e964000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x599/0xa30 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_pc+0x60/0x70 kernel/kcov.c:225
Code: 82 e8 15 00 00 83 f8 02 75 20 48 8b 8a f0 15 00 00 8b 92 ec 15 00 00 48 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 01 48 89 34 c1 <c3> 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 55 41 54 49 89
RSP: 0018:ffffc90004d2fca0 EFLAGS: 00000212
RAX: 0000000000000177 RBX: 0000000000000000 RCX: ffffc9000eaaa000
RDX: 0000000000040000 RSI: ffffffff8178ae62 RDI: 0000000000000005
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00007f9866dabf8c
R13: 0000000000000000 R14: 00000000000f4240 R15: 00000000ffffffff
 futex_wake+0x102/0x490 kernel/futex/waitwake.c:158
 do_futex+0x268/0x360 kernel/futex/syscalls.c:111
 __do_sys_futex kernel/futex/syscalls.c:183 [inline]
 __se_sys_futex kernel/futex/syscalls.c:164 [inline]
 __x64_sys_futex+0x1ca/0x4d0 kernel/futex/syscalls.c:164
 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: 0033:0x7f9866c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98679fe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f9866dabf88 RCX: 00007f9866c8c169
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f9866dabf8c
RBP: 00007f9866dabf80 R08: 00007ffef0bfa080 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9866dabf8c
R13: 00007ffef0b0129f R14: 00007f98679fe300 R15: 0000000000022000
 </TASK>