[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.701784][ T25] audit: type=1800 audit(1575405233.218:25): pid=8030 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.729758][ T25] audit: type=1800 audit(1575405233.218:26): pid=8030 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.778436][ T25] audit: type=1800 audit(1575405233.218:27): pid=8030 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.246' (ECDSA) to the list of known hosts. 2019/12/03 20:34:03 fuzzer started syzkaller login: [ 54.422867][ T8191] as (8191) used greatest stack depth: 23416 bytes left 2019/12/03 20:34:05 dialing manager at 10.128.0.26:42111 2019/12/03 20:34:05 syscalls: 2689 2019/12/03 20:34:05 code coverage: enabled 2019/12/03 20:34:05 comparison tracing: enabled 2019/12/03 20:34:05 extra coverage: extra coverage is not supported by the kernel 2019/12/03 20:34:05 setuid sandbox: enabled 2019/12/03 20:34:05 namespace sandbox: enabled 2019/12/03 20:34:05 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 20:34:05 fault injection: enabled 2019/12/03 20:34:05 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 20:34:05 net packet injection: enabled 2019/12/03 20:34:05 net device setup: enabled 2019/12/03 20:34:05 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 20:34:05 devlink PCI setup: PCI device 0000:00:10.0 is not available 20:34:06 executing program 0: ioctl$KVM_SET_USER_MEMORY_REGION(0xffffffffffffffff, 0x4020ae46, 0x0) bind$inet(0xffffffffffffffff, 0x0, 0x0) ioctl$KVM_S390_UCAS_MAP(0xffffffffffffffff, 0x4018ae50, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(0x0, 0x0, &(0x7f0000000040)='cgroup2\x00', 0x0, 0x0) open(0x0, 0x301000, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f00000000c0)=0x100000001, 0x4) setsockopt$inet6_tcp_TCP_REPAIR_QUEUE(r0, 0x6, 0x14, &(0x7f0000000040)=0x1, 0x4) getsockopt$inet6_tcp_int(r0, 0x6, 0x15, 0x0, &(0x7f0000000100)) recvmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0) preadv(0xffffffffffffffff, 0x0, 0x0, 0x0) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) 20:34:06 executing program 1: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = socket$inet6(0x10, 0x8000000100000003, 0x0) r2 = dup2(r0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = open(&(0x7f00000000c0)='./bus\x00', 0x800000141042, 0x0) ftruncate(r3, 0x200004) r4 = open(&(0x7f00000000c0)='./bus\x00', 0x14102e, 0x0) mmap(&(0x7f0000000000/0x600000)=nil, 0x600000, 0x180000f, 0x11, r4, 0x0) ioctl$sock_FIOGETOWN(r0, 0x8902, &(0x7f0000000100)) [ 56.216109][ T8198] IPVS: ftp: loaded support on port[0] = 21 [ 56.375923][ T8198] chnl_net:caif_netlink_parms(): no params data found [ 56.393690][ T8201] IPVS: ftp: loaded support on port[0] = 21 20:34:07 executing program 2: r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000009fe8)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f00004b4000/0x1000)=nil, 0x1000}, 0x1}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000913000)={{&(0x7f00004b5000/0x400000)=nil, 0x400000}, 0x1}) [ 56.437564][ T8198] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.446179][ T8198] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.454372][ T8198] device bridge_slave_0 entered promiscuous mode [ 56.464419][ T8198] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.471867][ T8198] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.480106][ T8198] device bridge_slave_1 entered promiscuous mode [ 56.515790][ T8198] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.542406][ T8198] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.581688][ T8198] team0: Port device team_slave_0 added [ 56.592785][ T8198] team0: Port device team_slave_1 added 20:34:07 executing program 3: socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = open(&(0x7f0000000100)='./bus\x00', 0x141042, 0x0) pwritev(r3, &(0x7f0000000080)=[{&(0x7f0000003040)="02", 0x1}], 0x1, 0x0) [ 56.652366][ T8198] device hsr_slave_0 entered promiscuous mode [ 56.690259][ T8198] device hsr_slave_1 entered promiscuous mode [ 56.822137][ T8203] IPVS: ftp: loaded support on port[0] = 21 [ 56.835874][ T8201] chnl_net:caif_netlink_parms(): no params data found [ 56.912031][ T8198] netdevsim netdevsim0 netdevsim0: renamed from eth0 20:34:07 executing program 4: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$inet(0x2, 0x2, 0x0) setsockopt$EBT_SO_SET_ENTRIES(r1, 0x0, 0x80, &(0x7f00000002c0)=@nat={'nat\x06\x00\x00\x00\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x1e\x00', 0x19, 0x1, 0x1e0, [0x200000c0, 0x0, 0x0, 0x200000f0, 0x20000120], 0x0, 0x0, &(0x7f00000000c0)=ANY=[@ANYBLOB="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"]}, 0x258) [ 56.999018][ T8198] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.041561][ T8198] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.107706][ T8206] IPVS: ftp: loaded support on port[0] = 21 [ 57.113986][ T8201] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.123718][ T8201] bridge0: port 1(bridge_slave_0) entered disabled state 20:34:07 executing program 5: r0 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0800b5055e0bcfe87b0071") r1 = socket$inet6(0xa, 0x80002, 0x0) setsockopt$inet6_opts(r1, 0x29, 0x36, &(0x7f0000000100)=ANY=[@ANYBLOB="ff06040308400900fe80000000000000000098dc036000aaff020000000000000000000000000001ff020000000000000000000000000001"], 0x38) setsockopt$inet6_opts(r1, 0x29, 0x37, 0x0, 0x0) [ 57.150401][ T8201] device bridge_slave_0 entered promiscuous mode [ 57.172440][ T8198] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.235601][ T8209] IPVS: ftp: loaded support on port[0] = 21 [ 57.241757][ T8201] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.248802][ T8201] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.265133][ T8201] device bridge_slave_1 entered promiscuous mode [ 57.278921][ T8198] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.286114][ T8198] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.293963][ T8198] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.301079][ T8198] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.340795][ T8201] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.372322][ T8201] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.398988][ T3963] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.400446][ T8211] IPVS: ftp: loaded support on port[0] = 21 [ 57.417745][ T3963] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.472634][ T8201] team0: Port device team_slave_0 added [ 57.488516][ T8201] team0: Port device team_slave_1 added [ 57.496377][ T8203] chnl_net:caif_netlink_parms(): no params data found [ 57.514857][ T8198] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.582239][ T8201] device hsr_slave_0 entered promiscuous mode [ 57.610639][ T8201] device hsr_slave_1 entered promiscuous mode [ 57.659994][ T8201] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.686186][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.694199][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.724950][ T8201] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.792922][ T8201] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.826294][ T8201] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.882733][ T8198] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.896594][ T8203] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.905263][ T8203] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.913666][ T8203] device bridge_slave_0 entered promiscuous mode [ 57.924791][ T8203] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.931966][ T8203] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.939920][ T8203] device bridge_slave_1 entered promiscuous mode [ 57.948084][ T8201] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.006847][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.016013][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.024812][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.032011][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.088045][ T8206] chnl_net:caif_netlink_parms(): no params data found [ 58.104849][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.113862][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.122392][ T2998] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.129539][ T2998] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.137432][ T2998] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.152949][ T8203] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.203013][ T8203] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.224823][ T8209] chnl_net:caif_netlink_parms(): no params data found [ 58.253521][ T8212] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.266829][ T8203] team0: Port device team_slave_0 added [ 58.282088][ T8209] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.289191][ T8209] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.297163][ T8209] device bridge_slave_0 entered promiscuous mode [ 58.304902][ T8209] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.312525][ T8209] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.320416][ T8209] device bridge_slave_1 entered promiscuous mode [ 58.336919][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.345570][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.354104][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.363044][ T8203] team0: Port device team_slave_1 added [ 58.395547][ T8206] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.403237][ T8206] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.411393][ T8206] device bridge_slave_0 entered promiscuous mode [ 58.424947][ T8209] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.435660][ T8209] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.452800][ T8206] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.460019][ T8206] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.467672][ T8206] device bridge_slave_1 entered promiscuous mode [ 58.485443][ T8209] team0: Port device team_slave_0 added [ 58.494911][ T8209] team0: Port device team_slave_1 added [ 58.508883][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.518539][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.538560][ T8211] chnl_net:caif_netlink_parms(): no params data found [ 58.592564][ T8203] device hsr_slave_0 entered promiscuous mode [ 58.649960][ T8203] device hsr_slave_1 entered promiscuous mode [ 58.690015][ T8203] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.698967][ T8206] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.709891][ T8206] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.734310][ T8206] team0: Port device team_slave_0 added [ 58.764937][ T8206] team0: Port device team_slave_1 added [ 58.772831][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.781434][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.790241][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.798496][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.811105][ T8198] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.851288][ T8209] device hsr_slave_0 entered promiscuous mode [ 58.920609][ T8209] device hsr_slave_1 entered promiscuous mode [ 58.949667][ T8209] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.967176][ T8211] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.976145][ T8211] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.984078][ T8211] device bridge_slave_0 entered promiscuous mode [ 59.000141][ T8211] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.007199][ T8211] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.016010][ T8211] device bridge_slave_1 entered promiscuous mode [ 59.111335][ T8206] device hsr_slave_0 entered promiscuous mode [ 59.159946][ T8206] device hsr_slave_1 entered promiscuous mode [ 59.209605][ T8206] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.230170][ T8203] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.291141][ T8203] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.366378][ T8203] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.424820][ T8203] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 59.475412][ T8198] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.486023][ T8211] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.497623][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.505185][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.521623][ T8201] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.538683][ T8211] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.563130][ T8211] team0: Port device team_slave_0 added [ 59.571107][ T8211] team0: Port device team_slave_1 added [ 59.576876][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.593114][ T3963] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.607775][ T8201] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.682481][ T8211] device hsr_slave_0 entered promiscuous mode [ 164.679494][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 164.686289][ C1] rcu: 1-...!: (10499 ticks this GP) idle=27a/1/0x4000000000000002 softirq=11230/11230 fqs=2 [ 164.696773][ C1] (t=10500 jiffies g=5969 q=21) [ 164.701718][ C1] rcu: rcu_preempt kthread starved for 10496 jiffies! g5969 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 164.712866][ C1] rcu: RCU grace-period kthread stack dump: [ 164.718796][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 164.726826][ C1] Call Trace: [ 164.730137][ C1] __schedule+0x9a0/0xcc0 [ 164.734492][ C1] schedule+0x181/0x210 [ 164.738663][ C1] schedule_timeout+0x14f/0x240 [ 164.743525][ C1] ? run_local_timers+0x120/0x120 [ 164.748567][ C1] rcu_gp_kthread+0xed8/0x1770 [ 164.753342][ C1] kthread+0x332/0x350 [ 164.757415][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 164.762533][ C1] ? kthread_blkcg+0xe0/0xe0 [ 164.767139][ C1] ret_from_fork+0x24/0x30 [ 164.771563][ C1] NMI backtrace for cpu 1 [ 164.775891][ C1] CPU: 1 PID: 4083 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 164.783466][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.793525][ C1] Call Trace: [ 164.796805][ C1] [ 164.799657][ C1] dump_stack+0x1fb/0x318 [ 164.804005][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 164.808847][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 164.815008][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 164.821064][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 164.827033][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 164.832913][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 164.838048][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 164.843249][ C1] ? trace_hardirqs_off+0x74/0x80 [ 164.848269][ C1] update_process_times+0x12d/0x180 [ 164.853459][ C1] tick_sched_timer+0x263/0x420 [ 164.858295][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.863830][ C1] __hrtimer_run_queues+0x403/0x840 [ 164.869029][ C1] hrtimer_interrupt+0x38c/0xda0 [ 164.873966][ C1] ? debug_smp_processor_id+0x9/0x20 [ 164.879241][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 164.884773][ C1] apic_timer_interrupt+0xf/0x20 [ 164.889724][ C1] [ 164.892651][ C1] RIP: 0010:__memcg_kmem_uncharge+0x0/0x2e0 [ 164.898635][ C1] Code: 00 eb 1b 83 3d 80 ce 8c 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 dc 7d ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 [ 164.918232][ C1] RSP: 0018:ffffc900015b7b08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 164.926797][ C1] RAX: ffffffff81486ea4 RBX: ffffea0001b04a80 RCX: ffff888094f301c0 [ 164.934782][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0001b04a80 [ 164.942746][ C1] RBP: ffffc900015b7b48 R08: dffffc0000000000 R09: fffffbfff120248a [ 164.950794][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c121b20 [ 164.958754][ C1] R13: dffffc0000000000 R14: 1ffff1100d824364 R15: ffff88809e4d55a8 [ 164.966738][ C1] ? free_thread_stack+0x124/0x590 [ 164.971850][ C1] ? free_thread_stack+0x12e/0x590 [ 164.976952][ C1] put_task_stack+0xa3/0x130 [ 164.981707][ C1] finish_task_switch+0x3f1/0x550 [ 164.986724][ C1] __schedule+0x9a8/0xcc0 [ 164.991051][ C1] schedule+0x181/0x210 [ 164.995193][ C1] schedule_hrtimeout_range_clock+0x108/0x510 [ 165.001270][ C1] ? _raw_spin_unlock_irq+0x22/0x80 [ 165.006457][ C1] schedule_hrtimeout_range+0x2a/0x40 [ 165.011814][ C1] ep_poll+0xa4d/0xe80 [ 165.015876][ C1] ? debug_smp_processor_id+0x1c/0x20 [ 165.021231][ C1] ? do_task_dead+0xc0/0xc0 [ 165.025726][ C1] do_epoll_wait+0x1ee/0x260 [ 165.030306][ C1] __x64_sys_epoll_wait+0x9a/0xb0 [ 165.035321][ C1] do_syscall_64+0xf7/0x1c0 [ 165.039811][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.045706][ C1] RIP: 0033:0x7fa381364943 [ 165.050120][ C1] 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 [ 165.069710][ C1] RSP: 002b:00007ffda5922ea8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 165.078107][ C1] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fa381364943 [ 165.086067][ C1] RDX: 0000000000000008 RSI: 00007ffda5922fa0 RDI: 000000000000000a [ 165.094028][ C1] RBP: 0000000000000000 R08: 0000000001fdb0d0 R09: 00007fa3813ae1d0 [ 165.101988][ C1] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 165.109947][ C1] R13: 0000000000000010 R14: 0000000001fdb4b0 R15: 0000000001fdb250