rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10501 ticks this GP) idle=64a4/1/0x4000000000000000 softirq=140761/140763 fqs=5225
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:    57747          0            0
rcu: 	cputime:      506      51973            0   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=156321 q=5813 ncpus=2)
CPU: 1 UID: 0 PID: 5644 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:in_softirq_really kernel/kcov.c:167 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:179 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x2e/0x80 kernel/kcov.c:213
Code: 48 8b 04 24 65 48 8b 0d d8 e9 d2 12 65 48 8b 15 d8 e9 d2 12 f7 c2 00 01 00 ff 74 29 89 d6 81 e6 00 01 00 0f 81 fe 00 01 00 00 <40> 0f 95 c6 81 fa 00 00 00 10 0f 93 c2 40 08 f2 75 35 83 b9 44 17
RSP: 0018:ffffc90000a08768 EFLAGS: 00000246
RAX: ffffffff86b98b55 RBX: 0000000000000000 RCX: ffff888023baddc0
RDX: 0000000000000302 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000100 R09: 0000000000000000
R10: ffffc90000a08990 R11: ffffffff86b98a90 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88807c660028 R15: 0000000000000000
FS:  000055556ba19500(0000) GS:ffff888123b6b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f17b515da08 CR3: 00000000584a0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 team_select_queue+0xc5/0x130 drivers/net/team/team_core.c:1915
 netdev_core_pick_tx+0x130/0x360 net/core/dev.c:4923
 __dev_queue_xmit+0x5c5/0x3920 net/core/dev.c:5018
 dev_queue_xmit include/linux/netdevice.h:3483 [inline]
 tipc_l2_send_msg+0x331/0x400 net/tipc/bearer.c:519
 tipc_bearer_xmit_skb+0x2b3/0x400 net/tipc/bearer.c:578
 tipc_disc_timeout+0x5f6/0x750 net/tipc/discover.c:340
 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
 __do_softirq kernel/softirq.c:703 [inline]
 invoke_softirq kernel/softirq.c:542 [inline]
 __irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x2e1/0x3c0 kernel/locking/lockdep.c:5968
Code: e9 f7 12 00 00 00 00 eb b5 e8 4b 98 50 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 53 a2 f7 12 48 3b 44 24 28 75 48 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d a8 a4 db
RSP: 0018:ffffc9000464f250 EFLAGS: 00000286
RAX: b3e8a1fa28196900 RBX: 0000000000000206 RCX: 8000000000000002
RDX: 0000000000000000 RSI: ffffffff8e70fdbb RDI: ffffffff8c6e1780
RBP: ffff888023baea88 R08: ffff88801ee4d73f R09: 1ffff11003dc9ae7
R10: dffffc0000000000 R11: ffffed1003dc9ae8 R12: 0000000000000007
R13: 0000000000000007 R14: ffffffff8fd59ca0 R15: ffff888023baddc0
 rcu_lock_release include/linux/rcupdate.h:319 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 page_table_check_set+0x4c8/0x530 mm/page_table_check.c:124
 page_table_check_ptes_set include/linux/page_table_check.h:83 [inline]
 set_ptes include/linux/pgtable.h:447 [inline]
 __copy_present_ptes mm/memory.c:1200 [inline]
 copy_present_ptes mm/memory.c:1279 [inline]
 copy_pte_range mm/memory.c:1402 [inline]
 copy_pmd_range+0x4adc/0x5c00 mm/memory.c:1490
 copy_pud_range mm/memory.c:1527 [inline]
 copy_p4d_range mm/memory.c:1551 [inline]
 copy_page_range+0xc7d/0x1280 mm/memory.c:1637
 dup_mmap+0xf17/0x1dc0 mm/mmap.c:1819
 dup_mm kernel/fork.c:1543 [inline]
 copy_mm+0x115/0x470 kernel/fork.c:1595
 copy_process+0x1ecc/0x44b0 kernel/fork.c:2321
 kernel_clone+0x2d7/0x940 kernel/fork.c:2785
 __do_sys_clone kernel/fork.c:2927 [inline]
 __se_sys_clone kernel/fork.c:2911 [inline]
 __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2911
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f50621c7fd2
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffce0bd1c10 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffce0bd1c10 RCX: 00007f50621c7fd2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffce0bd1d9c R08: 0000000000000000 R09: 0000000000000001
R10: 000055556ba197d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000cfaa8 R15: 00007ffce0bd1df0
 </TASK>
sched: DL replenish lagged too much