rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (241 ticks this GP) idle=1ad4/1/0x4000000000000000 softirq=47040/47042 fqs=0
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P2969/1:b..l
	(detected by 0, t=10502 jiffies, g=61477, q=62 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12048 Comm: udevd Not tainted 6.1.0-rc1-syzkaller-00454-ga70385240892 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:advance_sched+0x4c3/0x9a0 net/sched/sch_taprio.c:754
Code: 48 c7 c7 00 89 f8 8b e8 0b ae d0 f9 e8 26 7d d7 f9 31 ff 89 c3 89 c6 e8 2b 8e ed f9 84 db 58 0f 84 79 01 00 00 e8 8d 91 ed f9 <48> 8b 7c 24 10 e8 13 f8 c7 ff e8 fe 7c d7 f9 31 ff 89 c3 89 c6 e8
RSP: 0018:ffffc900001e0db8 EFLAGS: 00000046
RAX: 0000000080010001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888020213a80 RSI: ffffffff878efa13 RDI: 0000000000000001
RBP: 000000000028f5c2 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88805d5a0d80
R13: 19df30aeb3be615d R14: ffff88805d5a0da0 R15: 19df30aeb3be615d
FS:  00007f3793af5840(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005601fa97ff48 CR3: 0000000073e3b000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0x17c/0x640 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:finish_task_switch.isra.0+0x2bf/0xc80 kernel/sched/core.c:5070
Code: 8b 3a 4c 89 e7 48 c7 02 00 00 00 00 ff d1 4d 85 ff 75 bf 4c 89 e7 e8 20 f8 ff ff e8 4b e3 2f 00 fb 65 48 8b 1c 25 80 6f 02 00 <48> 8d bb 68 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900039df9c0 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffff888020213a80 RCX: 1ffffffff1bc49a9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff81531f15
RBP: ffffc900039dfa08 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1017367420 R11: 0000000000000001 R12: ffff8880b9b3a100
R13: ffff88807cd01d40 R14: 0000000000000000 R15: ffff8880b9b3ab38
 context_switch kernel/sched/core.c:5194 [inline]
 __schedule+0xaf1/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_hrtimeout_range_clock+0x343/0x390 kernel/time/hrtimer.c:2296
 ep_poll fs/eventpoll.c:1878 [inline]
 do_epoll_wait+0x12ba/0x1950 fs/eventpoll.c:2256
 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2263 [inline]
 __x64_sys_epoll_wait+0x158/0x270 fs/eventpoll.c:2263
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3793733e46
Code: 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 e8 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 89 54 24 18 48 89 74 24
RSP: 002b:00007ffebe8f59a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3793733e46
RDX: 0000000000000004 RSI: 00007ffebe8f59e8 RDI: 0000000000000004
RBP: 00005601fa99c600 R08: 0000000000000007 R09: 00005601fa99c290
R10: 00000000ffffffff R11: 0000000000000246 R12: 00005601fa9a0ba0
R13: 00007ffebe8f59e8 R14: 0000000000000008 R15: 00005601fa978910
 </TASK>
task:udevd           state:R  running task     stack:25544 pid:2969  ppid:1      flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6672
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x57/0x70 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
 __wake_up_common_lock+0xde/0x130 kernel/sched/wait.c:139
 sock_def_readable+0xec/0x4e0 net/core/sock.c:3275
 __netlink_sendskb net/netlink/af_netlink.c:1266 [inline]
 netlink_sendskb net/netlink/af_netlink.c:1272 [inline]
 netlink_unicast+0x6e6/0x7f0 net/netlink/af_netlink.c:1360
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3793735163
RSP: 002b:00007ffebe8f5a98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00005601fa978dc0 RCX: 00007f3793735163
RDX: 0000000000000000 RSI: 00007ffebe8f5aa8 RDI: 0000000000000004
RBP: 00005601fa9a0ba0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000000b4 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: rcu_preempt kthread starved for 10502 jiffies! g61477 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:28664 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1658
 rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1857
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 12053 Comm: syz-executor.2 Not tainted 6.1.0-rc1-syzkaller-00454-ga70385240892 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_many_cond+0x43f/0x10a0 kernel/smp.c:987
Code: e6 e8 85 e8 0a 00 45 85 e4 74 48 48 8b 04 24 49 89 c5 83 e0 07 49 c1 ed 03 49 89 c4 4d 01 fd 41 83 c4 03 e8 93 eb 0a 00 f3 90 <41> 0f b6 45 00 41 38 c4 7c 08 84 c0 0f 85 4e 0a 00 00 8b 43 08 31
RSP: 0018:ffffc9000396fa20 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9b40440 RCX: 0000000000000000
RDX: ffff88803ecf1d40 RSI: ffffffff8171a00d RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000008c07e R12: 0000000000000003
R13: ffffed1017368089 R14: 0000000000000001 R15: dffffc0000000000
FS:  0000555555afb400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f522000 CR3: 0000000016f32000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1155
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1311 [inline]
 text_poke_bp_batch+0x22e/0x6b0 arch/x86/kernel/alternative.c:1502
 text_poke_flush arch/x86/kernel/alternative.c:1670 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:1667 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1677
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32f/0x410 kernel/jump_label.c:801
 static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
 static_key_disable+0x16/0x20 kernel/jump_label.c:215
 tracepoint_remove_func kernel/tracepoint.c:417 [inline]
 tracepoint_probe_unregister+0x632/0xc30 kernel/tracepoint.c:551
 bpf_raw_tp_link_release+0x51/0xa0 kernel/bpf/syscall.c:3140
 bpf_link_free+0xe6/0x1b0 kernel/bpf/syscall.c:2723
 bpf_link_put+0x161/0x1b0 kernel/bpf/syscall.c:2749
 bpf_link_release+0x33/0x40 kernel/bpf/syscall.c:2758
 __fput+0x27c/0xa90 fs/file_table.c:320
 task_work_run+0x16b/0x270 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
 exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fab1203d3cb
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007fff05605420 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fab1203d3cb
RDX: 00007fab121b05f0 RSI: ffffffffffffffff RDI: 0000000000000004
RBP: 00007fab121ad980 R08: 0000000000000000 R09: 00007fab121b05f8
R10: 00007fff05605520 R11: 0000000000000293 R12: 00000000001cb910
R13: 00007fff05605520 R14: 00007fab121abf80 R15: 0000000000000032
 </TASK>