[ 42.561196][ T25] audit: type=1800 audit(1575344686.570:26): pid=8047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.598288][ T25] audit: type=1800 audit(1575344686.570:27): pid=8047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.620037][ T25] audit: type=1800 audit(1575344686.570:28): pid=8047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.378654][ T25] audit: type=1800 audit(1575344687.420:29): pid=8047 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.30' (ECDSA) to the list of known hosts. 2019/12/03 03:44:58 fuzzer started 2019/12/03 03:45:00 dialing manager at 10.128.0.26:38907 2019/12/03 03:45:00 syscalls: 2697 2019/12/03 03:45:00 code coverage: enabled 2019/12/03 03:45:00 comparison tracing: enabled 2019/12/03 03:45:00 extra coverage: extra coverage is not supported by the kernel 2019/12/03 03:45:00 setuid sandbox: enabled 2019/12/03 03:45:00 namespace sandbox: enabled 2019/12/03 03:45:00 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 03:45:00 fault injection: enabled 2019/12/03 03:45:00 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 03:45:00 net packet injection: enabled 2019/12/03 03:45:00 net device setup: enabled 2019/12/03 03:45:00 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 03:45:00 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:45:01 executing program 0: unshare(0x400) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x3) getsockopt$bt_BT_SECURITY(r2, 0x112, 0x4, 0x0, 0x7ffffffff000) 03:45:01 executing program 1: r0 = socket(0x11, 0xa, 0x0) perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0x1f, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getsockopt$SO_BINDTODEVICE(r0, 0x1, 0x39, &(0x7f0000000000), 0x20a154cc) syzkaller login: [ 57.438135][ T8212] IPVS: ftp: loaded support on port[0] = 21 [ 57.566318][ T8212] chnl_net:caif_netlink_parms(): no params data found [ 57.638866][ T8216] IPVS: ftp: loaded support on port[0] = 21 [ 57.654529][ T8212] bridge0: port 1(bridge_slave_0) entered blocking state 03:45:01 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f00000ba000)={0x9, 0x4, &(0x7f0000346fc8)=@framed={{}, [@alu={0x8000000201a7f19, 0x0, 0x201a7fa6, 0x7, 0x1, 0x2c}]}, &(0x7f0000000040)='syzkaller\x00', 0x1, 0xfb, &(0x7f0000002880)=""/251, 0x0, 0x0, [], 0x0, 0xd}, 0x48) [ 57.680805][ T8212] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.688920][ T8212] device bridge_slave_0 entered promiscuous mode [ 57.711179][ T8212] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.718505][ T8212] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.728556][ T8212] device bridge_slave_1 entered promiscuous mode [ 57.773739][ T8212] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.795938][ T8212] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.857472][ T8212] team0: Port device team_slave_0 added [ 57.870718][ T8216] chnl_net:caif_netlink_parms(): no params data found [ 57.885751][ T8212] team0: Port device team_slave_1 added [ 57.923554][ T8219] IPVS: ftp: loaded support on port[0] = 21 03:45:02 executing program 3: r0 = socket$inet6(0xa, 0x2000000802, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000000)={@loopback, 0x800, 0x0, 0xff, 0x1}, 0x20) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000040)={@mcast2, 0x800, 0x2}, 0x20) [ 57.993736][ T8212] device hsr_slave_0 entered promiscuous mode [ 58.051112][ T8212] device hsr_slave_1 entered promiscuous mode [ 58.094597][ T8216] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.109902][ T8216] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.118963][ T8216] device bridge_slave_0 entered promiscuous mode [ 58.141464][ T8216] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.148583][ T8216] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.156521][ T8216] device bridge_slave_1 entered promiscuous mode [ 58.183862][ T8221] IPVS: ftp: loaded support on port[0] = 21 [ 58.202603][ T8216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.233822][ T8212] netdevsim netdevsim0 netdevsim0: renamed from eth0 03:45:02 executing program 4: r0 = semget$private(0x0, 0x800000000007, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup3(r2, r1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) semtimedop(r0, &(0x7f0000000140)=[{0x0, 0xfffffffffffffff9}], 0x1, 0x0) semtimedop(r0, &(0x7f0000000000)=[{0x0, 0x7fff}, {}], 0x2, 0x0) semctl$IPC_RMID(r0, 0x0, 0x0) [ 58.304222][ T8212] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.362829][ T8216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.407514][ T8216] team0: Port device team_slave_0 added [ 58.430253][ T8212] netdevsim netdevsim0 netdevsim2: renamed from eth2 03:45:02 executing program 5: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f00000001c0)={0x0, 0x0, &(0x7f00000bfff0)={&(0x7f0000000280)=@updpolicy={0xc4, 0x19, 0x1, 0x0, 0x0, {{@in6=@mcast1, @in6=@ipv4={[], [], @dev}, 0x0, 0x0, 0x0, 0x0, 0xa}}, [@sec_ctx={0xc, 0x8, {0x8, 0x8, 0x0, 0x0, 0xffffffffffffffb6}}]}, 0xc4}}, 0x0) [ 58.461789][ T8212] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.568003][ T8223] IPVS: ftp: loaded support on port[0] = 21 [ 58.575584][ T8216] team0: Port device team_slave_1 added [ 58.672270][ T8216] device hsr_slave_0 entered promiscuous mode [ 58.730604][ T8216] device hsr_slave_1 entered promiscuous mode [ 58.770020][ T8216] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.802654][ T8225] IPVS: ftp: loaded support on port[0] = 21 [ 58.856688][ T8216] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.913459][ T8216] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.951902][ T8216] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.003230][ T8216] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.155212][ T8219] chnl_net:caif_netlink_parms(): no params data found [ 59.211718][ T8223] chnl_net:caif_netlink_parms(): no params data found [ 59.224287][ T8221] chnl_net:caif_netlink_parms(): no params data found [ 59.267287][ T8225] chnl_net:caif_netlink_parms(): no params data found [ 59.281945][ T8219] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.289104][ T8219] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.297274][ T8219] device bridge_slave_0 entered promiscuous mode [ 59.308636][ T8219] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.316766][ T8219] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.324568][ T8219] device bridge_slave_1 entered promiscuous mode [ 59.375311][ T8223] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.382678][ T8223] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.392570][ T8223] device bridge_slave_0 entered promiscuous mode [ 59.404662][ T8223] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.413259][ T8223] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.421810][ T8223] device bridge_slave_1 entered promiscuous mode [ 59.430422][ T8219] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.441327][ T8219] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.450660][ T8225] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.457874][ T8225] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.465654][ T8225] device bridge_slave_0 entered promiscuous mode [ 59.497586][ T8223] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.510926][ T8225] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.517967][ T8225] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.525852][ T8225] device bridge_slave_1 entered promiscuous mode [ 59.537678][ T8221] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.548118][ T8221] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.556158][ T8221] device bridge_slave_0 entered promiscuous mode [ 59.565492][ T8223] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.593088][ T8221] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.603641][ T8221] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.611630][ T8221] device bridge_slave_1 entered promiscuous mode [ 59.620681][ T8219] team0: Port device team_slave_0 added [ 59.628347][ T8212] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.638614][ T8225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.653417][ T8225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.664464][ T8223] team0: Port device team_slave_0 added [ 59.677930][ T8219] team0: Port device team_slave_1 added [ 59.752631][ T8219] device hsr_slave_0 entered promiscuous mode [ 59.792889][ T8219] device hsr_slave_1 entered promiscuous mode [ 59.830012][ T8219] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.842700][ T8223] team0: Port device team_slave_1 added [ 59.858067][ T8225] team0: Port device team_slave_0 added [ 59.865353][ T8225] team0: Port device team_slave_1 added [ 59.876492][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.886349][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.897589][ T8212] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.907045][ T8221] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.918948][ T8221] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.023563][ T8223] device hsr_slave_0 entered promiscuous mode [ 60.100503][ T8223] device hsr_slave_1 entered promiscuous mode [ 60.150008][ T8223] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.159062][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.168165][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.176768][ T8231] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.183918][ T8231] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.192184][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.200917][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.209164][ T8231] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.216270][ T8231] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.223922][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.281555][ T8225] device hsr_slave_0 entered promiscuous mode [ 60.330332][ T8225] device hsr_slave_1 entered promiscuous mode [ 60.399883][ T8225] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.431988][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.439888][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.463321][ T8221] team0: Port device team_slave_0 added [ 60.469165][ T8219] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.521980][ T8219] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.562753][ T8219] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.625544][ T8219] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.667373][ T8221] team0: Port device team_slave_1 added [ 60.676006][ T8216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.686763][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.695436][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.704050][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.712723][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.733888][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.757682][ T8212] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.768851][ T8212] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.781468][ T8223] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.836237][ T8223] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.895383][ T8223] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.961986][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.970985][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.979481][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.987943][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.996166][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.004223][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.013120][ T8216] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.037394][ T8212] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.045388][ T8225] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 61.086412][ T8223] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 61.121250][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.129313][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.136992][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.202160][ T8221] device hsr_slave_0 entered promiscuous mode [ 61.260484][ T8221] device hsr_slave_1 entered promiscuous mode [ 61.290198][ T8221] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.303114][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.311601][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.319993][ T3059] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.327033][ T3059] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.335487][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.343566][ T8225] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 61.382260][ T8225] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 61.484856][ T8225] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 61.551160][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.564263][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.590519][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.597618][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.606402][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.643739][ T8219] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.666712][ T8219] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.728845][ T8223] 8021q: adding VLAN 0 to HW filter on device bond0 [ 166.609782][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 166.616541][ C0] rcu: 0-...!: (1 GPs behind) idle=c32/1/0x4000000000000002 softirq=10951/10962 fqs=6 [ 166.626421][ C0] (t=10500 jiffies g=6285 q=422) [ 166.631432][ C0] rcu: rcu_preempt kthread starved for 10486 jiffies! g6285 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 166.642513][ C0] rcu: RCU grace-period kthread stack dump: [ 166.648386][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.656274][ C0] Call Trace: [ 166.659558][ C0] __schedule+0x9a0/0xcc0 [ 166.663885][ C0] schedule+0x181/0x210 [ 166.668029][ C0] schedule_timeout+0x14f/0x240 [ 166.672869][ C0] ? run_local_timers+0x120/0x120 [ 166.677883][ C0] rcu_gp_kthread+0xed8/0x1770 [ 166.682640][ C0] kthread+0x332/0x350 [ 166.686694][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 166.691791][ C0] ? kthread_blkcg+0xe0/0xe0 [ 166.696366][ C0] ret_from_fork+0x24/0x30 [ 166.700784][ C0] NMI backtrace for cpu 0 [ 166.705103][ C0] CPU: 0 PID: 8183 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 166.712539][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 166.722578][ C0] Call Trace: [ 166.725844][ C0] [ 166.728683][ C0] dump_stack+0x1fb/0x318 [ 166.733003][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 166.737845][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 166.743985][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 166.750037][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 166.756006][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 166.761883][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 166.766983][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 166.772170][ C0] ? trace_hardirqs_off+0x74/0x80 [ 166.777184][ C0] update_process_times+0x12d/0x180 [ 166.782372][ C0] tick_sched_timer+0x263/0x420 [ 166.787208][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.792742][ C0] __hrtimer_run_queues+0x403/0x840 [ 166.797940][ C0] hrtimer_interrupt+0x38c/0xda0 [ 166.802882][ C0] ? debug_smp_processor_id+0x9/0x20 [ 166.808169][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 166.813705][ C0] apic_timer_interrupt+0xf/0x20 [ 166.818626][ C0] [ 166.821554][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 166.827608][ C0] Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 34 e7 cc 07 48 89 de e8 64 02 3b 00 5b 5d c3 cc <48> 8b 04 24 65 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 [ 166.847284][ C0] RSP: 0018:ffffc90001ef7b08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.855786][ C0] RAX: 1ffff110141eb051 RBX: ffffea0002884040 RCX: ffff88808dc70680 [ 166.863744][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002884040 [ 166.871700][ C0] RBP: ffffc90001ef7b48 R08: 000000000003a768 R09: ffffed1012438ed7 [ 166.879657][ C0] R10: ffffed1012438ed7 R11: 0000000000000000 R12: ffff8880a0f58320 [ 166.887702][ C0] R13: dffffc0000000000 R14: 1ffff110141eb064 R15: ffff8880921c76a8 [ 166.895678][ C0] ? free_thread_stack+0x124/0x590 [ 166.900777][ C0] put_task_stack+0xa3/0x130 [ 166.905354][ C0] finish_task_switch+0x3f1/0x550 [ 166.910368][ C0] __schedule+0x9a8/0xcc0 [ 166.914692][ C0] schedule+0x181/0x210 [ 166.918837][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 166.924897][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 166.930694][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 166.936053][ C0] ep_poll+0xa4d/0xe80 [ 166.940119][ C0] ? do_task_dead+0xc0/0xc0 [ 166.944609][ C0] ? __kasan_check_read+0x11/0x20 [ 166.949622][ C0] do_epoll_wait+0x1ee/0x260 [ 166.954227][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 166.959250][ C0] do_syscall_64+0xf7/0x1c0 [ 166.963752][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.969660][ C0] RIP: 0033:0x7f575382d943 [ 166.974077][ C0] Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 [ 166.993671][ C0] RSP: 002b:00007fff52faf778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 167.002069][ C0] RAX: ffffffffffffffda RBX: 0000000001ad8250 RCX: 00007f575382d943 [ 167.010026][ C0] RDX: 0000000000000004 RSI: 00007fff52faf840 RDI: 0000000000000007 [ 167.017983][ C0] RBP: 0000000000625500 R08: 00007fff52faf760 R09: 00007fff52fbe0b8 [ 167.025940][ C0] R10: 000000000000ee42 R11: 0000000000000246 R12: 0000000001adcb50 [ 167.033910][ C0] R13: 00007fff52fb0897 R14: 0000000000000005 R15: 0000000001ad8250