[ 1140.571611][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 258559 ms [ 1140.572096][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 258559000 usecs ago [ 1146.203608][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 264191 ms [ 1146.204080][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 264191000 usecs ago [ 1151.323614][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 269311 ms [ 1151.324222][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 269311000 usecs ago [ 1156.443610][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 274431 ms [ 1156.444039][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 274431000 usecs ago [ 1162.587614][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 280575 ms [ 1162.588229][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 280575000 usecs ago [ 1168.219611][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 286207 ms [ 1168.220035][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 286207000 usecs ago [ 1173.339610][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 291327 ms [ 1173.340033][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 291327000 usecs ago [ 1179.483610][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 297471 ms [ 1179.484033][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 297471000 usecs ago [ 1185.115614][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 303103 ms [ 1185.116225][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 303103000 usecs ago [ 1190.235614][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 308223 ms [ 1190.236220][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 308223000 usecs ago [ 1195.355609][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 313343 ms [ 1195.356077][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 313343000 usecs ago [ 1201.499609][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 319487 ms [ 1201.500026][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 319487000 usecs ago [ 1207.131613][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 325119 ms [ 1207.132153][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 325119000 usecs ago [ 1212.251611][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 330239 ms [ 1212.252066][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 330239000 usecs ago [ 1217.371609][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 335359 ms [ 1217.372021][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 335359000 usecs ago [ 1223.515614][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 341503 ms [ 1223.516177][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 341503000 usecs ago [ 1229.147609][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 347135 ms [ 1229.148018][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 347135000 usecs ago [ 1230.171627][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds. [ 1230.171955][ T44] Not tainted 6.19.0-rc1-virtme #1 [ 1230.172121][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1230.172373][ T44] task:kworker/u16:0 state:D stack:26848 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 1230.172729][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 1230.172930][ T44] Call Trace: [ 1230.173064][ T44] [ 1230.173173][ T44] __schedule+0xae2/0x1720 [ 1230.173351][ T44] ? io_schedule_timeout+0x130/0x130 [ 1230.173527][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.173707][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.173874][ T44] schedule+0xd4/0x260 [ 1230.174008][ T44] schedule_preempt_disabled+0x18/0x30 [ 1230.174190][ T44] __mutex_lock+0xd76/0x1f20 [ 1230.174361][ T44] ? addrconf_verify_work+0x12/0x30 [ 1230.174538][ T44] ? ww_mutex_lock+0x160/0x160 [ 1230.174724][ T44] ? process_one_work+0xd16/0x1390 [ 1230.174888][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.175052][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.175216][ T44] ? addrconf_verify_work+0x12/0x30 [ 1230.175388][ T44] addrconf_verify_work+0x12/0x30 [ 1230.175562][ T44] process_one_work+0xd57/0x1390 [ 1230.175739][ T44] ? pwq_dec_nr_in_flight+0x700/0x700 [ 1230.175902][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.176066][ T44] ? assign_work+0x152/0x380 [ 1230.176237][ T44] worker_thread+0x4d6/0xd40 [ 1230.176413][ T44] ? process_one_work+0x1390/0x1390 [ 1230.176583][ T44] kthread+0x355/0x5b0 [ 1230.176734][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.176898][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.177061][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.177230][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.177395][ T44] ret_from_fork+0x3fb/0x510 [ 1230.177568][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 1230.177770][ T44] ? __switch_to+0x53c/0xd00 [ 1230.177937][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.178099][ T44] ret_from_fork_asm+0x11/0x20 [ 1230.178307][ T44] [ 1230.178553][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task ip:5976. [ 1230.179006][ T44] INFO: task ip:5976 blocked for more than 368 seconds. [ 1230.179316][ T44] Not tainted 6.19.0-rc1-virtme #1 [ 1230.179568][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1230.179993][ T44] task:ip state:D stack:25520 pid:5976 tgid:5976 ppid:1 task_flags:0x400100 flags:0x00080002 [ 1230.180520][ T44] Call Trace: [ 1230.180753][ T44] [ 1230.180911][ T44] __schedule+0xae2/0x1720 [ 1230.181185][ T44] ? io_schedule_timeout+0x130/0x130 [ 1230.181468][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.181756][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.182029][ T44] schedule+0xd4/0x260 [ 1230.182247][ T44] schedule_preempt_disabled+0x18/0x30 [ 1230.182511][ T44] __mutex_lock+0xd76/0x1f20 [ 1230.182797][ T44] ? __folio_put+0x1f5/0x320 [ 1230.183058][ T44] ? napi_enable+0x3b/0x80 [ 1230.183329][ T44] ? ww_mutex_lock+0x160/0x160 [ 1230.183615][ T44] ? dma_map_phys+0x1b1/0x220 [ 1230.183879][ T44] ? __asan_memset+0x27/0x50 [ 1230.184135][ T44] ? sg_init_table+0x19/0x60 [ 1230.184416][ T44] ? try_fill_recv+0x3ec/0x1750 [ 1230.184719][ T44] ? napi_enable+0x3b/0x80 [ 1230.184993][ T44] napi_enable+0x3b/0x80 [ 1230.185211][ T44] __virtnet_rx_resume+0x156/0x290 [ 1230.185486][ T44] ? queue_delayed_work_on+0x91/0x100 [ 1230.185778][ T44] virtnet_rx_resume_all+0xe7/0x1a0 [ 1230.186051][ T44] virtnet_xdp_set+0xef7/0x1aa0 [ 1230.186333][ T44] ? virtnet_xdp_set+0x1aa0/0x1aa0 [ 1230.186625][ T44] dev_xdp_install+0x3e4/0x890 [ 1230.186892][ T44] ? netif_set_xps_queue+0x40/0x40 [ 1230.187166][ T44] dev_xdp_attach+0x50d/0x1310 [ 1230.187440][ T44] ? bpf_xdp_link_update+0x6e0/0x6e0 [ 1230.187737][ T44] ? __bpf_prog_get+0x320/0x320 [ 1230.188003][ T44] dev_change_xdp_fd+0x176/0x210 [ 1230.188214][ T44] do_setlink.isra.0+0x1c2d/0x2880 [ 1230.188391][ T44] ? rtnl_newlink_create+0x900/0x900 [ 1230.188564][ T44] ? rcu_lockdep_current_cpu_online+0x39/0x1b0 [ 1230.188765][ T44] ? rcu_read_lock_any_held+0x3c/0x90 [ 1230.188930][ T44] ? validate_chain+0x37b/0xb70 [ 1230.189092][ T44] ? rcu_read_lock_any_held+0x66/0x90 [ 1230.189259][ T44] ? stack_depot_save_flags+0x3f1/0x6f0 [ 1230.189433][ T44] ? __lock_acquire+0x577/0xc10 [ 1230.189616][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.189778][ T44] ? rtnl_newlink+0x6fc/0xe90 [ 1230.189939][ T44] ? lock_acquire+0x10a/0x150 [ 1230.190098][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.190264][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.190431][ T44] ? trace_contention_end+0xd6/0x110 [ 1230.190610][ T44] ? __mutex_lock+0x285/0x1f20 [ 1230.190772][ T44] ? rtnl_newlink+0x6fc/0xe90 [ 1230.190935][ T44] ? ww_mutex_lock+0x160/0x160 [ 1230.191095][ T44] ? nla_get_range_signed+0x3d0/0x3d0 [ 1230.191266][ T44] ? __rtnl_newlink+0x3fa/0xa40 [ 1230.191443][ T44] rtnl_newlink+0x75c/0xe90 [ 1230.191622][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.191782][ T44] ? rtnl_setlink+0x880/0x880 [ 1230.191944][ T44] ? __lock_acquire+0x577/0xc10 [ 1230.192105][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.192269][ T44] ? find_held_lock+0x2b/0x80 [ 1230.192435][ T44] ? rtnl_setlink+0x880/0x880 [ 1230.192609][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.192778][ T44] ? rtnl_setlink+0x880/0x880 [ 1230.192940][ T44] rtnetlink_rcv_msg+0x6fe/0xb90 [ 1230.193103][ T44] ? rtnl_fdb_dump+0x620/0x620 [ 1230.193265][ T44] ? __lock_acquire+0x577/0xc10 [ 1230.193436][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.193615][ T44] ? find_held_lock+0x2b/0x80 [ 1230.193776][ T44] netlink_rcv_skb+0x123/0x380 [ 1230.193938][ T44] ? rtnl_fdb_dump+0x620/0x620 [ 1230.194106][ T44] ? netlink_ack+0xcc0/0xcc0 [ 1230.194278][ T44] ? netlink_deliver_tap+0xc5/0x330 [ 1230.194446][ T44] ? netlink_deliver_tap+0x13f/0x330 [ 1230.194623][ T44] netlink_unicast+0x4a3/0x770 [ 1230.194786][ T44] ? netlink_attachskb+0x810/0x810 [ 1230.194947][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.195109][ T44] ? __lock_acquire+0x577/0xc10 [ 1230.195281][ T44] netlink_sendmsg+0x735/0xc60 [ 1230.195457][ T44] ? netlink_unicast+0x770/0x770 [ 1230.195638][ T44] ____sys_sendmsg+0x419/0x850 [ 1230.195800][ T44] ? copy_msghdr_from_user+0x270/0x430 [ 1230.195964][ T44] ? get_timestamp.constprop.0+0x3a0/0x3a0 [ 1230.196152][ T44] ? move_addr_to_kernel+0x40/0x40 [ 1230.196320][ T44] ? stack_depot_save_flags+0x3f1/0x6f0 [ 1230.196497][ T44] ? rcu_read_lock_any_held+0x3c/0x90 [ 1230.196674][ T44] ___sys_sendmsg+0xfd/0x180 [ 1230.196835][ T44] ? __call_rcu_common.constprop.0+0xa6/0xa00 [ 1230.197024][ T44] ? copy_msghdr_from_user+0x430/0x430 [ 1230.197197][ T44] __sys_sendmsg+0x124/0x1c0 [ 1230.197367][ T44] ? __sys_sendmsg_sock+0x20/0x20 [ 1230.197544][ T44] ? lockdep_hardirqs_on+0x84/0x130 [ 1230.197726][ T44] ? __call_rcu_common.constprop.0+0x3bd/0xa00 [ 1230.197918][ T44] ? do_raw_spin_unlock+0x59/0x250 [ 1230.198080][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.198248][ T44] do_syscall_64+0xbd/0xfc0 [ 1230.198418][ T44] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 1230.198624][ T44] RIP: 0033:0x7f06d8c6ac5e [ 1230.198792][ T44] RSP: 002b:00007ffc73b4a3a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 1230.199016][ T44] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f06d8c6ac5e [ 1230.199238][ T44] RDX: 0000000000000000 RSI: 00007ffc73b4a460 RDI: 0000000000000003 [ 1230.199463][ T44] RBP: 00007ffc73b4a3b0 R08: 0000000000000000 R09: 0000000000000000 [ 1230.199692][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc73b4ab20 [ 1230.199914][ T44] R13: 0000000069507917 R14: 0000000000000000 R15: 0000000000499600 [ 1230.200139][ T44] [ 1230.200281][ T44] INFO: task ip:5976 is blocked on a mutex likely owned by task kworker/3:1:51. [ 1230.200523][ T44] task:kworker/3:1 state:D stack:28096 pid:51 tgid:51 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 1230.200841][ T44] Workqueue: events refill_work [ 1230.201003][ T44] Call Trace: [ 1230.201136][ T44] [ 1230.201248][ T44] __schedule+0xae2/0x1720 [ 1230.201419][ T44] ? usleep_range_state+0xba/0x1b0 [ 1230.201610][ T44] ? io_schedule_timeout+0x130/0x130 [ 1230.201889][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.202160][ T44] ? usleep_range_state+0xba/0x1b0 [ 1230.202440][ T44] schedule+0xd4/0x260 [ 1230.202676][ T44] schedule_hrtimeout_range_clock+0x1da/0x2f0 [ 1230.202995][ T44] ? schedule_timeout_idle+0xe0/0xe0 [ 1230.203275][ T44] ? __hrtimer_cb_get_time+0x50/0x50 [ 1230.203541][ T44] ? lockdep_hardirqs_on+0x84/0x130 [ 1230.203825][ T44] ? ktime_get+0x15e/0x220 [ 1230.204093][ T44] ? kvm_clock_get_cycles+0x18/0x30 [ 1230.204377][ T44] ? ktime_get+0xa9/0x220 [ 1230.204616][ T44] usleep_range_state+0x133/0x1b0 [ 1230.204882][ T44] ? schedule_hrtimeout+0x20/0x20 [ 1230.205144][ T44] ? perf_trace_sched_switch+0x6d0/0x6d0 [ 1230.205421][ T44] ? refill_work+0x149/0x210 [ 1230.205715][ T44] napi_disable_locked+0x379/0x5f0 [ 1230.205985][ T44] ? _mutex_trylock_nest_lock+0x340/0x340 [ 1230.206274][ T44] ? register_netdevice_notifier_net+0x40/0x40 [ 1230.206588][ T44] napi_disable+0x43/0x80 [ 1230.206826][ T44] refill_work+0x116/0x210 [ 1230.207100][ T44] process_one_work+0xd57/0x1390 [ 1230.207379][ T44] ? pwq_dec_nr_in_flight+0x700/0x700 [ 1230.207666][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 1230.207932][ T44] ? assign_work+0x152/0x380 [ 1230.208206][ T44] worker_thread+0x4d6/0xd40 [ 1230.208489][ T44] ? process_one_work+0x1390/0x1390 [ 1230.208774][ T44] kthread+0x355/0x5b0 [ 1230.208992][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.209265][ T44] ? __lock_release.isra.0+0x59/0x170 [ 1230.209531][ T44] ? rcu_is_watching+0x15/0xd0 [ 1230.209830][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.210100][ T44] ret_from_fork+0x3fb/0x510 [ 1230.210387][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 1230.210727][ T44] ? __switch_to+0x53c/0xd00 [ 1230.210993][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 1230.211265][ T44] ret_from_fork_asm+0x11/0x20 [ 1230.211546][ T44] [ 1230.211775][ T44] [ 1230.211775][ T44] Showing all locks held in the system: [ 1230.212140][ T44] 3 locks held by kworker/u16:0/12: [ 1230.212374][ T44] #0: ff1100000912f148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 1230.212674][ T44] #1: ffa00000000c7cc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 1230.212997][ T44] #2: ffffffff98085768 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30 [ 1230.213255][ T44] 3 locks held by kworker/1:0/23: [ 1230.213411][ T44] #0: ff11000001139b48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 1230.213695][ T44] #1: ffa00000001a7cc0 ((work_completion)(&pool->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 1230.213961][ T44] #2: ffffffff98085768 (rtnl_mutex){+.+.}-{4:4}, at: xp_release_deferred+0x1b/0x1e0 [ 1230.214211][ T44] 1 lock held by khungtaskd/44: [ 1230.214372][ T44] #0: ffffffff97971040 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30 [ 1230.214659][ T44] 3 locks held by kworker/3:1/51: [ 1230.214813][ T44] #0: ff11000001139b48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 1230.215079][ T44] #1: ffa000000037fcc0 ((work_completion)(&(&vi->refill)->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 1230.215395][ T44] #2: ff11000008b82c98 (&dev->lock){+.+.}-{4:4}, at: napi_disable+0x3b/0x80 [ 1230.215662][ T44] 2 locks held by ip/5976: [ 1230.215817][ T44] #0: ffffffff98085768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x6fc/0xe90 [ 1230.216155][ T44] #1: ff11000008b82c98 (&dev->lock){+.+.}-{4:4}, at: napi_enable+0x3b/0x80 [ 1230.216407][ T44] 1 lock held by xdp_helper/5985: [ 1230.216570][ T44] #0: ffffffff98085768 (rtnl_mutex){+.+.}-{4:4}, at: xsk_bind+0x17f/0x1a10 [ 1230.217099][ T44] [ 1230.217257][ T44] ============================================= [ 1230.217257][ T44] [ 1234.267617][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 352255 ms [ 1234.268220][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 352255000 usecs ago [ 1239.387613][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 357375 ms [ 1239.388209][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 357375000 usecs ago [ 1245.531609][ C0] virtio_net virtio2 enp0s1: NETDEV WATCHDOG: CPU: 0: transmit queue 2 timed out 363519 ms [ 1245.532041][ C0] virtio_net virtio2 enp0s1: TX timeout on queue: 2, sq: output.2, vq: 0x5, name: output.2, 363519000 usecs ago