Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.58' (ECDSA) to the list of known hosts. syzkaller login: [ 62.881730][ T8491] IPVS: ftp: loaded support on port[0] = 21 [ 62.974434][ T8491] chnl_net:caif_netlink_parms(): no params data found [ 63.029979][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.037878][ T8491] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.045853][ T8491] device bridge_slave_0 entered promiscuous mode [ 63.056421][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.064123][ T8491] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.073746][ T8491] device bridge_slave_1 entered promiscuous mode [ 63.094808][ T8491] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.105676][ T8491] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.129065][ T8491] team0: Port device team_slave_0 added [ 63.136349][ T8491] team0: Port device team_slave_1 added [ 63.154911][ T8491] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.162197][ T8491] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 63.190022][ T8491] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.203283][ T8491] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.210959][ T8491] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 63.239503][ T8491] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.266336][ T8491] device hsr_slave_0 entered promiscuous mode [ 63.273125][ T8491] device hsr_slave_1 entered promiscuous mode [ 63.371631][ T8491] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 63.383085][ T8491] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 63.399100][ T8491] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 63.410546][ T8491] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.437950][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.445199][ T8491] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.453293][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.460479][ T8491] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.506544][ T8491] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.521345][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.532401][ T3065] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.541087][ T3065] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.550433][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 63.564412][ T8491] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.577278][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.585675][ T3065] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.592798][ T3065] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.607593][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.615960][ T8182] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.623084][ T8182] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.648796][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.657955][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.666381][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.674992][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.686713][ T8491] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.697875][ T57] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.716524][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.724576][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.738267][ T8491] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.757383][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 63.778027][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 63.786325][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 63.794494][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 63.805398][ T8491] device veth0_vlan entered promiscuous mode [ 63.818190][ T8491] device veth1_vlan entered promiscuous mode [ 63.840481][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 63.849449][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 63.858293][ T8182] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 63.868809][ T8491] device veth0_macvtap entered promiscuous mode [ 63.880624][ T8491] device veth1_macvtap entered promiscuous mode [ 63.899942][ T8491] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 63.909240][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 63.919501][ T3065] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 63.931205][ T8491] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 63.940788][ T8697] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 63.952367][ T8491] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.961623][ T8491] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.970516][ T8491] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 63.979357][ T8491] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 64.038422][ T8491] nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. [ 64.062347][ T8491] [ 64.064684][ T8491] ======================================================== [ 64.071859][ T8491] WARNING: possible irq lock inversion dependency detected [ 64.079372][ T8491] 5.10.0-rc2-syzkaller #0 Not tainted [ 64.084710][ T8491] -------------------------------------------------------- [ 64.091878][ T8491] syz-executor981/8491 just changed the state of lock: [ 64.098714][ T8491] ffff88801798e638 (&f->f_owner.lock){.+..}-{2:2}, at: send_sigurg+0x1e/0xac0 [ 64.107568][ T8491] but this lock was taken by another, HARDIRQ-safe lock in the past: [ 64.115608][ T8491] (&dev->event_lock){-...}-{2:2} [ 64.115620][ T8491] [ 64.115620][ T8491] [ 64.115620][ T8491] and interrupts could create inverse lock ordering between them. [ 64.115620][ T8491] [ 64.134901][ T8491] [ 64.134901][ T8491] other info that might help us debug this: [ 64.142933][ T8491] Chain exists of: [ 64.142933][ T8491] &dev->event_lock --> &new->fa_lock --> &f->f_owner.lock [ 64.142933][ T8491] [ 64.155932][ T8491] Possible interrupt unsafe locking scenario: [ 64.155932][ T8491] [ 64.164233][ T8491] CPU0 CPU1 [ 64.169582][ T8491] ---- ---- [ 64.174967][ T8491] lock(&f->f_owner.lock); [ 64.179456][ T8491] local_irq_disable(); [ 64.186199][ T8491] lock(&dev->event_lock); [ 64.193204][ T8491] lock(&new->fa_lock); [ 64.199985][ T8491] [ 64.203431][ T8491] lock(&dev->event_lock); [ 64.208155][ T8491] [ 64.208155][ T8491] *** DEADLOCK *** [ 64.208155][ T8491] [ 64.216281][ T8491] 1 lock held by syz-executor981/8491: [ 64.221708][ T8491] #0: ffff888023e118a0 (sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_stream_connect+0x596/0xe30 [ 64.231908][ T8491] [ 64.231908][ T8491] the shortest dependencies between 2nd lock and 1st lock: [ 64.241255][ T8491] -> (&dev->event_lock){-...}-{2:2} { [ 64.246870][ T8491] IN-HARDIRQ-W at: [ 64.251106][ T8491] lock_acquire+0x2a3/0x8c0 [ 64.257822][ T8491] _raw_spin_lock_irqsave+0x39/0x50 [ 64.265167][ T8491] input_event+0x7b/0xb0 [ 64.271567][ T8491] psmouse_report_standard_buttons+0x2c/0x80 [ 64.279703][ T8491] psmouse_process_byte+0x1e1/0x890 [ 64.287046][ T8491] psmouse_handle_byte+0x41/0x1b0 [ 64.294213][ T8491] psmouse_interrupt+0x304/0xf00 [ 64.301308][ T8491] serio_interrupt+0x88/0x150 [ 64.308142][ T8491] i8042_interrupt+0x27a/0x520 [ 64.315058][ T8491] __handle_irq_event_percpu+0x303/0x8f0 [ 64.322841][ T8491] handle_irq_event+0x102/0x290 [ 64.329856][ T8491] handle_edge_irq+0x25f/0xd00 [ 64.336765][ T8491] asm_call_irq_on_stack+0xf/0x20 [ 64.343933][ T8491] common_interrupt+0x120/0x200 [ 64.350935][ T8491] asm_common_interrupt+0x1e/0x40 [ 64.358106][ T8491] acpi_idle_do_entry+0x1c9/0x250 [ 64.365285][ T8491] acpi_idle_enter+0x361/0x500 [ 64.373158][ T8491] cpuidle_enter_state+0x1b1/0xc80 [ 64.380601][ T8491] cpuidle_enter+0x4a/0xa0 [ 64.387177][ T8491] do_idle+0x3e1/0x590 [ 64.393388][ T8491] cpu_startup_entry+0x14/0x20 [ 64.400293][ T8491] start_secondary+0x266/0x340 [ 64.407198][ T8491] secondary_startup_64_no_verify+0xb0/0xbb [ 64.415765][ T8491] INITIAL USE at: [ 64.419898][ T8491] lock_acquire+0x2a3/0x8c0 [ 64.426456][ T8491] _raw_spin_lock_irqsave+0x39/0x50 [ 64.433709][ T8491] input_inject_event+0xa6/0x310 [ 64.440792][ T8491] led_set_brightness_nosleep+0xe6/0x1a0 [ 64.448567][ T8491] led_set_brightness+0x134/0x170 [ 64.455658][ T8491] led_trigger_event+0x70/0xd0 [ 64.462477][ T8491] kbd_led_trigger_activate+0xfa/0x130 [ 64.470000][ T8491] led_trigger_set+0x61e/0xbd0 [ 64.476823][ T8491] led_trigger_set_default+0x1a6/0x230 [ 64.484336][ T8491] led_classdev_register_ext+0x5b1/0x7c0 [ 64.492029][ T8491] input_leds_connect+0x3fb/0x740 [ 64.499123][ T8491] input_attach_handler+0x180/0x1f0 [ 64.506658][ T8491] input_register_device.cold+0xf0/0x307 [ 64.514345][ T8491] atkbd_connect+0x736/0xa00 [ 64.521076][ T8491] serio_driver_probe+0x72/0xa0 [ 64.527981][ T8491] really_probe+0x291/0xde0 [ 64.534547][ T8491] driver_probe_device+0x26b/0x3d0 [ 64.541717][ T8491] device_driver_attach+0x228/0x290 [ 64.548993][ T8491] __driver_attach+0x15b/0x2f0 [ 64.555811][ T8491] bus_for_each_dev+0x147/0x1d0 [ 64.562717][ T8491] serio_handle_event+0x5f6/0xa30 [ 64.569797][ T8491] process_one_work+0x933/0x15a0 [ 64.576795][ T8491] worker_thread+0x64c/0x1120 [ 64.583546][ T8491] kthread+0x3af/0x4a0 [ 64.589671][ T8491] ret_from_fork+0x1f/0x30 [ 64.596138][ T8491] } [ 64.598880][ T8491] ... key at: [] __key.8+0x0/0x40 [ 64.606225][ T8491] ... acquired at: [ 64.610268][ T8491] _raw_spin_lock+0x2a/0x40 [ 64.614917][ T8491] evdev_pass_values.part.0+0xf6/0x970 [ 64.620519][ T8491] evdev_events+0x28b/0x3f0 [ 64.625164][ T8491] input_to_handler+0x2a0/0x4c0 [ 64.630160][ T8491] input_pass_values.part.0+0x284/0x700 [ 64.635849][ T8491] input_handle_event+0x324/0x1400 [ 64.641103][ T8491] input_inject_event+0x2f5/0x310 [ 64.646970][ T8491] evdev_write+0x430/0x760 [ 64.651531][ T8491] vfs_write+0x28e/0x700 [ 64.655918][ T8491] ksys_write+0x1ee/0x250 [ 64.660407][ T8491] do_syscall_64+0x2d/0x70 [ 64.664982][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.671011][ T8491] [ 64.673309][ T8491] -> (&client->buffer_lock){....}-{2:2} { [ 64.679183][ T8491] INITIAL USE at: [ 64.683229][ T8491] lock_acquire+0x2a3/0x8c0 [ 64.689611][ T8491] _raw_spin_lock+0x2a/0x40 [ 64.696007][ T8491] evdev_pass_values.part.0+0xf6/0x970 [ 64.703346][ T8491] evdev_events+0x28b/0x3f0 [ 64.710079][ T8491] input_to_handler+0x2a0/0x4c0 [ 64.716810][ T8491] input_pass_values.part.0+0x284/0x700 [ 64.724245][ T8491] input_handle_event+0x324/0x1400 [ 64.731237][ T8491] input_inject_event+0x2f5/0x310 [ 64.738232][ T8491] evdev_write+0x430/0x760 [ 64.744532][ T8491] vfs_write+0x28e/0x700 [ 64.750690][ T8491] ksys_write+0x1ee/0x250 [ 64.756922][ T8491] do_syscall_64+0x2d/0x70 [ 64.763307][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.771074][ T8491] } [ 64.773728][ T8491] ... key at: [] __key.4+0x0/0x40 [ 64.780976][ T8491] ... acquired at: [ 64.784930][ T8491] _raw_read_lock+0x5b/0x70 [ 64.789616][ T8491] kill_fasync+0x14b/0x460 [ 64.794264][ T8491] evdev_pass_values.part.0+0x64e/0x970 [ 64.800057][ T8491] evdev_events+0x28b/0x3f0 [ 64.804729][ T8491] input_to_handler+0x2a0/0x4c0 [ 64.809733][ T8491] input_pass_values.part.0+0x284/0x700 [ 64.815421][ T8491] input_handle_event+0x324/0x1400 [ 64.820773][ T8491] input_inject_event+0x2f5/0x310 [ 64.825940][ T8491] evdev_write+0x430/0x760 [ 64.830502][ T8491] vfs_write+0x28e/0x700 [ 64.834897][ T8491] ksys_write+0x1ee/0x250 [ 64.839486][ T8491] do_syscall_64+0x2d/0x70 [ 64.844153][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.850192][ T8491] [ 64.852509][ T8491] -> (&new->fa_lock){....}-{2:2} { [ 64.857780][ T8491] INITIAL READ USE at: [ 64.862178][ T8491] lock_acquire+0x2a3/0x8c0 [ 64.868852][ T8491] _raw_read_lock+0x5b/0x70 [ 64.875512][ T8491] kill_fasync+0x14b/0x460 [ 64.882075][ T8491] evdev_pass_values.part.0+0x64e/0x970 [ 64.889784][ T8491] evdev_events+0x28b/0x3f0 [ 64.896443][ T8491] input_to_handler+0x2a0/0x4c0 [ 64.903436][ T8491] input_pass_values.part.0+0x284/0x700 [ 64.911123][ T8491] input_handle_event+0x324/0x1400 [ 64.918389][ T8491] input_inject_event+0x2f5/0x310 [ 64.925555][ T8491] evdev_write+0x430/0x760 [ 64.932125][ T8491] vfs_write+0x28e/0x700 [ 64.938521][ T8491] ksys_write+0x1ee/0x250 [ 64.945005][ T8491] do_syscall_64+0x2d/0x70 [ 64.951566][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 64.959597][ T8491] } [ 64.962166][ T8491] ... key at: [] __key.0+0x0/0x40 [ 64.969339][ T8491] ... acquired at: [ 64.973208][ T8491] _raw_read_lock+0x5b/0x70 [ 64.978135][ T8491] send_sigio+0x24/0x360 [ 64.982520][ T8491] kill_fasync+0x205/0x460 [ 64.987095][ T8491] evdev_pass_values.part.0+0x64e/0x970 [ 64.992795][ T8491] evdev_events+0x28b/0x3f0 [ 64.997449][ T8491] input_to_handler+0x2a0/0x4c0 [ 65.002450][ T8491] input_pass_values.part.0+0x284/0x700 [ 65.008197][ T8491] input_handle_event+0x324/0x1400 [ 65.013476][ T8491] input_inject_event+0x2f5/0x310 [ 65.018668][ T8491] evdev_write+0x430/0x760 [ 65.023247][ T8491] vfs_write+0x28e/0x700 [ 65.027646][ T8491] ksys_write+0x1ee/0x250 [ 65.032160][ T8491] do_syscall_64+0x2d/0x70 [ 65.036729][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.042856][ T8491] [ 65.045154][ T8491] -> (&f->f_owner.lock){.+..}-{2:2} { [ 65.050508][ T8491] HARDIRQ-ON-R at: [ 65.054490][ T8491] lock_acquire+0x2a3/0x8c0 [ 65.060615][ T8491] _raw_read_lock+0x5b/0x70 [ 65.066747][ T8491] send_sigurg+0x1e/0xac0 [ 65.072704][ T8491] sk_send_sigurg+0x76/0x300 [ 65.078930][ T8491] tcp_check_urg.isra.0+0x1f4/0x710 [ 65.085748][ T8491] tcp_rcv_established+0x106c/0x1eb0 [ 65.093965][ T8491] tcp_v4_do_rcv+0x5d1/0x870 [ 65.100178][ T8491] __release_sock+0x134/0x3a0 [ 65.106487][ T8491] release_sock+0x54/0x1b0 [ 65.112537][ T8491] sk_stream_wait_memory+0x5bd/0xe60 [ 65.119453][ T8491] tcp_sendmsg_locked+0x1034/0x2d20 [ 65.126271][ T8491] tcp_sendmsg+0x2b/0x40 [ 65.132148][ T8491] inet_sendmsg+0x99/0xe0 [ 65.138202][ T8491] sock_sendmsg+0xcf/0x120 [ 65.144242][ T8491] __sys_sendto+0x21c/0x320 [ 65.150378][ T8491] __x64_sys_sendto+0xdd/0x1b0 [ 65.156783][ T8491] do_syscall_64+0x2d/0x70 [ 65.163924][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.171440][ T8491] INITIAL READ USE at: [ 65.175812][ T8491] lock_acquire+0x2a3/0x8c0 [ 65.182301][ T8491] _raw_read_lock+0x5b/0x70 [ 65.188922][ T8491] send_sigio+0x24/0x360 [ 65.195137][ T8491] kill_fasync+0x205/0x460 [ 65.201528][ T8491] evdev_pass_values.part.0+0x64e/0x970 [ 65.209054][ T8491] evdev_events+0x28b/0x3f0 [ 65.215539][ T8491] input_to_handler+0x2a0/0x4c0 [ 65.222357][ T8491] input_pass_values.part.0+0x284/0x700 [ 65.229871][ T8491] input_handle_event+0x324/0x1400 [ 65.236948][ T8491] input_inject_event+0x2f5/0x310 [ 65.243938][ T8491] evdev_write+0x430/0x760 [ 65.250346][ T8491] vfs_write+0x28e/0x700 [ 65.257039][ T8491] ksys_write+0x1ee/0x250 [ 65.263340][ T8491] do_syscall_64+0x2d/0x70 [ 65.270005][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.277861][ T8491] } [ 65.280342][ T8491] ... key at: [] __key.5+0x0/0x40 [ 65.287417][ T8491] ... acquired at: [ 65.291292][ T8491] __lock_acquire+0x11f5/0x5590 [ 65.296287][ T8491] lock_acquire+0x2a3/0x8c0 [ 65.300939][ T8491] _raw_read_lock+0x5b/0x70 [ 65.305586][ T8491] send_sigurg+0x1e/0xac0 [ 65.310059][ T8491] sk_send_sigurg+0x76/0x300 [ 65.314796][ T8491] tcp_check_urg.isra.0+0x1f4/0x710 [ 65.320158][ T8491] tcp_rcv_established+0x106c/0x1eb0 [ 65.325597][ T8491] tcp_v4_do_rcv+0x5d1/0x870 [ 65.330352][ T8491] __release_sock+0x134/0x3a0 [ 65.335175][ T8491] release_sock+0x54/0x1b0 [ 65.339744][ T8491] sk_stream_wait_memory+0x5bd/0xe60 [ 65.345172][ T8491] tcp_sendmsg_locked+0x1034/0x2d20 [ 65.350515][ T8491] tcp_sendmsg+0x2b/0x40 [ 65.354905][ T8491] inet_sendmsg+0x99/0xe0 [ 65.359382][ T8491] sock_sendmsg+0xcf/0x120 [ 65.363966][ T8491] __sys_sendto+0x21c/0x320 [ 65.368627][ T8491] __x64_sys_sendto+0xdd/0x1b0 [ 65.373548][ T8491] do_syscall_64+0x2d/0x70 [ 65.378121][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.384159][ T8491] [ 65.386488][ T8491] [ 65.386488][ T8491] stack backtrace: [ 65.392365][ T8491] CPU: 0 PID: 8491 Comm: syz-executor981 Not tainted 5.10.0-rc2-syzkaller #0 [ 65.401098][ T8491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.411304][ T8491] Call Trace: [ 65.414925][ T8491] dump_stack+0x107/0x163 [ 65.419235][ T8491] mark_lock.cold+0x1a/0x74 [ 65.423726][ T8491] ? lock_chain_count+0x20/0x20 [ 65.428553][ T8491] ? tcp_ack_update_rtt+0x485/0x1630 [ 65.433818][ T8491] __lock_acquire+0x11f5/0x5590 [ 65.438643][ T8491] ? tcp_newly_delivered+0xb1/0x120 [ 65.443837][ T8491] ? tcp_update_pacing_rate+0x1c6/0x2d0 [ 65.449357][ T8491] ? tcp_xmit_recovery+0x17/0x180 [ 65.454377][ T8491] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 65.460334][ T8491] ? tcp_ack+0xea1/0x5960 [ 65.464662][ T8491] lock_acquire+0x2a3/0x8c0 [ 65.469161][ T8491] ? send_sigurg+0x1e/0xac0 [ 65.473667][ T8491] ? lock_release+0x710/0x710 [ 65.478343][ T8491] ? tcp_fastretrans_alert+0x2ca0/0x2ca0 [ 65.483952][ T8491] _raw_read_lock+0x5b/0x70 [ 65.488440][ T8491] ? send_sigurg+0x1e/0xac0 [ 65.492916][ T8491] send_sigurg+0x1e/0xac0 [ 65.497220][ T8491] ? tcp_reset+0x470/0x470 [ 65.501622][ T8491] sk_send_sigurg+0x76/0x300 [ 65.506209][ T8491] tcp_check_urg.isra.0+0x1f4/0x710 [ 65.511381][ T8491] tcp_rcv_established+0x106c/0x1eb0 [ 65.516637][ T8491] ? tcp_data_queue+0x4b10/0x4b10 [ 65.521639][ T8491] ? mark_held_locks+0x9f/0xe0 [ 65.526460][ T8491] tcp_v4_do_rcv+0x5d1/0x870 [ 65.531022][ T8491] __release_sock+0x134/0x3a0 [ 65.535678][ T8491] release_sock+0x54/0x1b0 [ 65.540070][ T8491] sk_stream_wait_memory+0x5bd/0xe60 [ 65.545327][ T8491] ? sk_stream_kill_queues+0x530/0x530 [ 65.550761][ T8491] ? __init_waitqueue_head+0x110/0x110 [ 65.556194][ T8491] ? tcp_push+0x446/0x6c0 [ 65.560496][ T8491] tcp_sendmsg_locked+0x1034/0x2d20 [ 65.565669][ T8491] ? tcp_sendpage+0xd0/0xd0 [ 65.570151][ T8491] ? mark_held_locks+0x9f/0xe0 [ 65.575151][ T8491] ? __local_bh_enable_ip+0x9c/0x110 [ 65.580582][ T8491] tcp_sendmsg+0x2b/0x40 [ 65.584810][ T8491] inet_sendmsg+0x99/0xe0 [ 65.589653][ T8491] ? inet_send_prepare+0x4d0/0x4d0 [ 65.594777][ T8491] sock_sendmsg+0xcf/0x120 [ 65.599167][ T8491] __sys_sendto+0x21c/0x320 [ 65.603645][ T8491] ? __ia32_sys_getpeername+0xb0/0xb0 [ 65.608997][ T8491] ? __local_bh_enable_ip+0x9c/0x110 [ 65.614254][ T8491] ? __sys_bind+0x111/0x250 [ 65.618906][ T8491] ? __ia32_sys_socketpair+0xf0/0xf0 [ 65.624174][ T8491] ? _down_write_nest_lock+0x150/0x150 [ 65.629610][ T8491] __x64_sys_sendto+0xdd/0x1b0 [ 65.634346][ T8491] ? lockdep_hardirqs_on+0x79/0x100 [ 65.639517][ T8491] ? syscall_enter_from_user_mode+0x1d/0x50 [ 65.645381][ T8491] do_syscall_64+0x2d/0x70 [ 65.649777][ T8491] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.655641][ T8491] RIP: 0033:0x447309 [ 65.659513][ T8491] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 0b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.679175][ T8491] RSP: 002b:00007fffd9b651c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 65.687567][ T8491] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000447309 [ 65.695793][ T8491] RDX: ffffffffffffff58 RSI: 0000000020000140 RDI: 0000000000000004 [ 65.703738][ T8491] RBP: 00007fffd9b651e0 R08: 0000000020000100 R09: 0000000000000010 [ 65.711682][ T8491] R10: 0000000020008005 R11: 0000000000000246 R12: 00007fffd9b651f0 [ 65.719646][ T8491] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000