rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=90e4/1/0x4000000000000000 softirq=20688/20688 fqs=4124
rcu: hardirqs softirqs csw/system
rcu: number: 644621 0 0
rcu: cputime: 15656 36833 92 ==> 52490(ms)
rcu: (t=10500 jiffies g=22545 q=1775 ncpus=2)
CPU: 0 PID: 8409 Comm: syz.0.644 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:seqcount_lockdep_reader_access+0x19a/0x1d0 include/linux/seqlock.h:105
Code: 00 4d 85 e4 75 16 e8 95 cb 0f 00 eb 15 e8 8e cb 0f 00 e8 e9 45 1b 09 4d 85 e4 74 ea e8 7f cb 0f 00 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 43 c7 44 3e 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000006e20 EFLAGS: 00000246
RAX: ffffffff8177c531 RBX: 0000000000000000 RCX: ffff8880229a0000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000006ed8 R08: ffffffff91ff1607 R09: 1ffffffff23fe2c0
R10: dffffc0000000000 R11: fffffbfff23fe2c1 R12: 0000000000000200
R13: 000001fb6d54cfe9 R14: 1ffff92000000dc4 R15: dffffc0000000000
FS: 00007fe04b80a6c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8a3e27dac CR3: 000000007af30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
ktime_get_with_offset+0x94/0x330 kernel/time/timekeeping.c:889
ktime_get_real include/linux/timekeeping.h:79 [inline]
netif_rx_internal+0x33d/0x4e0 net/core/dev.c:5177
__netif_rx+0x78/0xc0 net/core/dev.c:5220
veth_forward_skb drivers/net/veth.c:325 [inline]
veth_xmit+0x57a/0xa30 drivers/net/veth.c:378
__netdev_start_xmit include/linux/netdevice.h:4998 [inline]
netdev_start_xmit include/linux/netdevice.h:5012 [inline]
xmit_one net/core/dev.c:3649 [inline]
dev_hard_start_xmit+0x269/0x790 net/core/dev.c:3665
__dev_queue_xmit+0x1be8/0x37e0 net/core/dev.c:4478
dev_queue_xmit_accel include/linux/netdevice.h:3176 [inline]
macvlan_queue_xmit drivers/net/macvlan.c:563 [inline]
macvlan_start_xmit+0x468/0x6c0 drivers/net/macvlan.c:587
__netdev_start_xmit include/linux/netdevice.h:4998 [inline]
netdev_start_xmit include/linux/netdevice.h:5012 [inline]
xmit_one net/core/dev.c:3649 [inline]
dev_hard_start_xmit+0x269/0x790 net/core/dev.c:3665
__dev_queue_xmit+0x1be8/0x37e0 net/core/dev.c:4478
neigh_output include/net/neighbour.h:547 [inline]
ip6_finish_output2+0xf7a/0x1690 net/ipv6/ip6_output.c:143
dst_output include/net/dst.h:470 [inline]
NF_HOOK include/linux/netfilter.h:304 [inline]
ndisc_send_skb+0xbb9/0x1480 net/ipv6/ndisc.c:513
addrconf_rs_timer+0x36b/0x640 net/ipv6/addrconf.c:4043
call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x570/0x810 kernel/time/timer.c:2023
run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:finish_task_switch+0x267/0x8f0 kernel/sched/core.c:5256
Code: 35 09 85 c0 0f 84 30 01 00 00 48 85 db 0f 85 4f 01 00 00 0f 1f 44 00 00 4c 89 e7 e8 e3 e9 3e 09 e8 2e 28 30 00 fb 4c 8b 65 b8 <49> 8d bc 24 00 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc90003297820 EFLAGS: 00000282
RAX: 8b27d861640a7f00 RBX: 0000000000000000 RCX: 8b27d861640a7f00
RDX: dffffc0000000000 RSI: ffffffff8acacfe0 RDI: ffffffff8b1d5160
RBP: ffffc90003297870 R08: ffffffff91ff15a7 R09: 1ffffffff23fe2b4
R10: dffffc0000000000 R11: fffffbfff23fe2b5 R12: ffff8880229a0000
R13: 1ffff110171879a1 R14: dffffc0000000000 R15: ffff8880b8c3cd08
context_switch kernel/sched/core.c:5385 [inline]
__schedule+0x15b6/0x4660 kernel/sched/core.c:6701
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6868
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6892
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
class_preempt_destructor include/linux/preempt.h:478 [inline]
try_to_wake_up+0x6f5/0x10e0 kernel/sched/core.c:4356
wake_up_process kernel/sched/core.c:4481 [inline]
wake_up_q+0xb6/0x100 kernel/sched/core.c:1032
__mutex_unlock_slowpath+0x65c/0x6c0 kernel/locking/mutex.c:951
__do_sys_perf_event_open kernel/events/core.c:12970 [inline]
__se_sys_perf_event_open+0x182a/0x1d40 kernel/events/core.c:12609
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe04a99e1d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe04b80a028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fe04ac26090 RCX: 00007fe04a99e1d9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000500
RBP: 00007fe04aa35888 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe04ac26128 R14: 00007fe04ac26090 R15: 00007ffc4286ec88