watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [kworker/1:0:19] Modules linked in: irq event stamp: 54145673 hardirqs last enabled at (54145672): [] seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline] hardirqs last enabled at (54145672): [] read_seqcount_begin include/linux/seqlock.h:164 [inline] hardirqs last enabled at (54145672): [] ktime_get+0x235/0x2f0 kernel/time/timekeeping.c:756 hardirqs last disabled at (54145673): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (8806): [] icmp6_dst_alloc+0x3de/0x660 net/ipv6/route.c:2750 softirqs last disabled at (8808): [] lwtunnel_xmit_redirect include/net/lwtunnel.h:92 [inline] softirqs last disabled at (8808): [] ip6_finish_output2+0x1f2/0x2290 net/ipv6/ip6_output.c:106 CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:__pvclock_read_cycles arch/x86/include/asm/pvclock.h:87 [inline] RIP: 0010:pvclock_clocksource_read+0x1a9/0x520 arch/x86/kernel/pvclock.c:87 Code: 89 d1 48 89 c6 f7 d9 48 d3 ee 89 d1 48 d3 e0 85 d2 8b 53 18 4c 89 d1 48 0f 48 c6 4c 89 fe 48 c1 e9 03 48 f7 e2 48 0f ac d0 20 <4c> 89 fa 83 e6 07 0f b6 0c 29 48 c1 ea 03 0f b6 14 2a 40 38 f2 40 RSP: 0018:ffff8880b5ad6b58 EFLAGS: 00000207 ORIG_RAX: ffffffffffffff13 RAX: 0000001b9a31eebd RBX: ffffffff8c665040 RCX: 1ffffffff18cca0a RDX: 000000000000001b RSI: ffffffff8c665050 RDI: 0000000000000001 RBP: dffffc0000000000 R08: ffffffff8c665058 R09: ffffffff8c66504f R10: ffffffff8c665057 R11: ffffffff8c66505b R12: ffffffff8c665043 R13: fffffbfff18cca09 R14: ffffffff8c66505d R15: ffffffff8c665050 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f371a39e370 CR3: 0000000009e6d000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvm_clock_read arch/x86/kernel/kvmclock.c:94 [inline] kvm_clock_get_cycles+0x14/0x30 arch/x86/kernel/kvmclock.c:101 tk_clock_read kernel/time/timekeeping.c:172 [inline] timekeeping_get_delta kernel/time/timekeeping.c:266 [inline] timekeeping_get_ns kernel/time/timekeeping.c:373 [inline] ktime_get+0x188/0x2f0 kernel/time/timekeeping.c:758 ktime_get_ns include/linux/timekeeping.h:126 [inline] tcf_police_act+0x3e8/0xe60 net/sched/act_police.c:240 tcf_action_exec net/sched/act_api.c:618 [inline] tcf_action_exec+0x160/0x400 net/sched/act_api.c:598 tcf_exts_exec include/net/pkt_cls.h:388 [inline] basic_classify+0x184/0x2b0 net/sched/cls_basic.c:52 tcf_classify+0x120/0x3c0 net/sched/cls_api.c:979 prio_classify net/sched/sch_prio.c:46 [inline] prio_enqueue+0x3bb/0x7a0 net/sched/sch_prio.c:78 __dev_xmit_skb net/core/dev.c:3494 [inline] __dev_queue_xmit+0x140a/0x2e00 net/core/dev.c:3807 neigh_hh_output include/net/neighbour.h:491 [inline] neigh_output include/net/neighbour.h:499 [inline] ip_finish_output2+0xb6d/0x15a0 net/ipv4/ip_output.c:230 ip_finish_output+0xae9/0x10b0 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip_output+0x203/0x5f0 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:455 [inline] ip_local_out+0xaf/0x170 net/ipv4/ip_output.c:125 iptunnel_xmit+0x63b/0x9d0 net/ipv4/ip_tunnel_core.c:91 geneve_xmit_skb drivers/net/geneve.c:867 [inline] geneve_xmit+0x120d/0x2e60 drivers/net/geneve.c:943 __netdev_start_xmit include/linux/netdevice.h:4349 [inline] netdev_start_xmit include/linux/netdevice.h:4363 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x920 net/core/dev.c:3272 __dev_queue_xmit+0x269d/0x2e00 net/core/dev.c:3838 neigh_resolve_output+0x55a/0x910 net/core/neighbour.c:1374 neigh_output include/net/neighbour.h:501 [inline] ip6_finish_output2+0x113d/0x2290 net/ipv6/ip6_output.c:120 ip6_finish_output+0x89b/0x10f0 net/ipv6/ip6_output.c:192 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x205/0x770 net/ipv6/ip6_output.c:209 dst_output include/net/dst.h:455 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] ndisc_send_skb+0xa24/0x1720 net/ipv6/ndisc.c:491 ndisc_send_ns+0x51d/0x840 net/ipv6/ndisc.c:633 addrconf_dad_work+0xb0e/0x10a0 net/ipv6/addrconf.c:4076 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415