[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 46.148618][ T24] audit: type=1800 audit(1575409358.401:25): pid=8151 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 46.167693][ T24] audit: type=1800 audit(1575409358.401:26): pid=8151 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 46.214106][ T24] audit: type=1800 audit(1575409358.401:27): pid=8151 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 '10.128.0.206' (ECDSA) to the list of known hosts. 2019/12/03 21:42:48 fuzzer started 2019/12/03 21:42:50 dialing manager at 10.128.0.26:42111 2019/12/03 21:42:50 syscalls: 2689 2019/12/03 21:42:50 code coverage: enabled 2019/12/03 21:42:50 comparison tracing: enabled 2019/12/03 21:42:50 extra coverage: extra coverage is not supported by the kernel 2019/12/03 21:42:50 setuid sandbox: enabled 2019/12/03 21:42:50 namespace sandbox: enabled 2019/12/03 21:42:50 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 21:42:50 fault injection: enabled 2019/12/03 21:42:50 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 21:42:50 net packet injection: enabled 2019/12/03 21:42:50 net device setup: enabled 2019/12/03 21:42:50 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 21:42:50 devlink PCI setup: PCI device 0000:00:10.0 is not available 21:42:51 executing program 0: r0 = socket(0x10, 0x2, 0x0) sendto(r0, &(0x7f0000000900)="120000001200e7ef077b1a3fcd00000200a1", 0x12, 0x0, 0x0, 0x0) recvmmsg(r0, &(0x7f0000004540)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0}}, {{0x0, 0x0, &(0x7f0000003a00)=[{&(0x7f0000001340)=""/70, 0x46}, {&(0x7f00000013c0)=""/4096, 0x1000}, {&(0x7f00000023c0)=""/64, 0x40}, {&(0x7f00000034c0)=""/214, 0xd6}, {&(0x7f0000000000)=""/89, 0x59}, {&(0x7f0000003800)=""/243, 0xf3}, {&(0x7f00000001c0)=""/22, 0x16}, {&(0x7f0000003680)=""/43, 0x2b}, {&(0x7f0000003900)=""/244, 0xf4}, {&(0x7f0000000200)=""/96, 0x60}], 0xa}}, {{0x0, 0x0, 0x0}}], 0x4, 0x0, 0x0) 21:42:51 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = signalfd(0xffffffffffffffff, &(0x7f0000392ff8), 0x8) r2 = fcntl$dupfd(r0, 0x0, r1) setsockopt$IP6T_SO_SET_ADD_COUNTERS(r2, 0x29, 0x41, 0x0, 0x16c) syzkaller login: [ 59.311632][ T8316] IPVS: ftp: loaded support on port[0] = 21 [ 59.486368][ T8316] chnl_net:caif_netlink_parms(): no params data found 21:42:51 executing program 2: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000100)='./cgroup\x00', 0x200002, 0x0) r1 = openat$cgroup_subtree(r0, &(0x7f00000000c0)='cgroup.subtree_control\x00', 0x2, 0x0) close(r1) socket$kcm(0x29, 0x5, 0x0) sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000440)={0x0, 0x0, &(0x7f0000000080)=[{0x0}], 0x1}, 0x0) readv(r1, &(0x7f00000002c0), 0x1a5) [ 59.572438][ T8319] IPVS: ftp: loaded support on port[0] = 21 [ 59.582006][ T8316] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.589826][ T8316] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.599673][ T8316] device bridge_slave_0 entered promiscuous mode [ 59.611779][ T8316] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.618926][ T8316] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.627248][ T8316] device bridge_slave_1 entered promiscuous mode [ 59.668678][ T8316] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.707611][ T8316] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.760912][ T8316] team0: Port device team_slave_0 added [ 59.768988][ T8316] team0: Port device team_slave_1 added [ 59.783998][ T8321] IPVS: ftp: loaded support on port[0] = 21 21:42:52 executing program 3: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000380)={0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f00000001c0)="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", 0x131}], 0x4, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) tkill(r0, 0x3c) ptrace$cont(0x18, r0, 0x0, 0x0) ptrace$setregs(0xd, r0, 0x0, &(0x7f0000000080)) ptrace$cont(0x20, r0, 0x0, 0x0) [ 59.893889][ T8316] device hsr_slave_0 entered promiscuous mode [ 59.951669][ T8316] device hsr_slave_1 entered promiscuous mode [ 60.064050][ T8319] chnl_net:caif_netlink_parms(): no params data found [ 60.087289][ T8316] netdevsim netdevsim0 netdevsim0: renamed from eth0 21:42:52 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_ENABLE_CAP_CPU(r2, 0xc008ae88, &(0x7f00000000c0)={0x7a, 0x4, [0x571], [0x3a]}) [ 60.152870][ T8316] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.156735][ T8324] IPVS: ftp: loaded support on port[0] = 21 [ 60.244305][ T8316] netdevsim netdevsim0 netdevsim2: renamed from eth2 21:42:52 executing program 5: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet(0x2, 0x3, 0x19) connect$inet(0xffffffffffffffff, &(0x7f0000000000)={0x2, 0x0, @local}, 0x12) setsockopt$inet_IP_XFRM_POLICY(r2, 0x0, 0x23, &(0x7f0000000000)={{{@in=@multicast2, @in=@multicast1}}, {{@in6}, 0x0, @in6=@loopback}}, 0xe8) setsockopt$inet_msfilter(r2, 0x0, 0x29, &(0x7f0000000100)=ANY=[@ANYBLOB="e0000002ac1414aa0000000002000000ac1414aa00000012a199f8a888a92bf46e20a9b78003d91876c932b5895c305382e6bd5ef923a781b16392dd240ffb4b0a5961332a4569740308b3daf955906d6c220f70e197d806a8914ec6756451974dbca80cdffe2bbd5e435106414f9d0f140a0e15ec35ebf1292b450d49ce2e4190c5cf13096a3c4cd7d0eda4000000460c61d23827b25271251748a1365e2cdf2131074890fb19b349f2c66e22a09ebefefee4a7f810f64e21fcaecbb80fe28396ffff000072bcd81408998a4e1e0d"], 0x18) preadv(0xffffffffffffffff, &(0x7f0000001380)=[{&(0x7f0000001200)=""/148, 0x94}], 0x100000c7, 0x0) r3 = syz_open_procfs(0x0, &(0x7f0000000140)='net/mcfilter\x00') preadv(r3, &(0x7f0000000480), 0x10000000000002a1, 0x5e) [ 60.325266][ T8316] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.489260][ T8319] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.498626][ T8319] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.506600][ T8319] device bridge_slave_0 entered promiscuous mode [ 60.515196][ T8319] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.522646][ T8319] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.530530][ T8319] device bridge_slave_1 entered promiscuous mode [ 60.551396][ T8321] chnl_net:caif_netlink_parms(): no params data found [ 60.570120][ T8326] IPVS: ftp: loaded support on port[0] = 21 [ 60.587849][ T8329] IPVS: ftp: loaded support on port[0] = 21 [ 60.598865][ T8319] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.633821][ T8319] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.656493][ T8319] team0: Port device team_slave_0 added [ 60.668190][ T8319] team0: Port device team_slave_1 added [ 60.753609][ T8319] device hsr_slave_0 entered promiscuous mode [ 60.790745][ T8319] device hsr_slave_1 entered promiscuous mode [ 60.840485][ T8319] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.856677][ T8321] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.864251][ T8321] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.872393][ T8321] device bridge_slave_0 entered promiscuous mode [ 60.881609][ T8321] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.888825][ T8321] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.897039][ T8321] device bridge_slave_1 entered promiscuous mode [ 60.944166][ T8321] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.973027][ T8321] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.006576][ T8316] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.026661][ T8321] team0: Port device team_slave_0 added [ 61.048691][ T8324] chnl_net:caif_netlink_parms(): no params data found [ 61.059331][ T8319] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 61.094653][ T8321] team0: Port device team_slave_1 added [ 61.101332][ T8319] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 61.183194][ T8319] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.249681][ T8319] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.323685][ T8326] chnl_net:caif_netlink_parms(): no params data found [ 61.343077][ T8324] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.350938][ T8324] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.358784][ T8324] device bridge_slave_0 entered promiscuous mode [ 61.369011][ T8324] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.376168][ T8324] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.384526][ T8324] device bridge_slave_1 entered promiscuous mode [ 61.403196][ T8316] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.417120][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.425432][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.492162][ T8321] device hsr_slave_0 entered promiscuous mode [ 61.580894][ T8321] device hsr_slave_1 entered promiscuous mode [ 61.650552][ T8321] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.696221][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.705530][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.714622][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.722271][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.731220][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.739850][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.748546][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.755744][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.763550][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.773032][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.789893][ T8324] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.820605][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.829191][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.840217][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.852665][ T8324] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.886202][ T8326] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.894819][ T8326] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.903692][ T8326] device bridge_slave_0 entered promiscuous mode [ 61.911588][ T3012] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.924859][ T8324] team0: Port device team_slave_0 added [ 61.943713][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.953669][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.962691][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.971563][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.980685][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.989207][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.001577][ T8326] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.008648][ T8326] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.018721][ T8326] device bridge_slave_1 entered promiscuous mode [ 62.030131][ T8329] chnl_net:caif_netlink_parms(): no params data found [ 62.041490][ T8324] team0: Port device team_slave_1 added [ 62.048869][ T8319] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.068781][ T8326] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.087880][ T8316] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.107686][ T8326] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.117749][ T8321] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 62.188122][ T8321] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 62.265473][ T8326] team0: Port device team_slave_0 added [ 62.273667][ T8326] team0: Port device team_slave_1 added [ 62.279461][ T8321] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 62.393302][ T8324] device hsr_slave_0 entered promiscuous mode [ 62.420756][ T8324] device hsr_slave_1 entered promiscuous mode [ 62.470721][ T8324] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.489914][ T8319] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.503478][ T8321] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 62.561655][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.569492][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.577919][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.585550][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.602841][ T8316] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.664352][ T8326] device hsr_slave_0 entered promiscuous mode [ 62.691406][ T8326] device hsr_slave_1 entered promiscuous mode [ 62.741320][ T8326] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.777896][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.787800][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.797317][ T8334] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.804441][ T8334] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.817408][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.839274][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.847872][ T8334] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.854965][ T8334] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.863469][ T8334] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.928238][ T8326] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 167.860252][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.867072][ C0] rcu: 0-...!: (10499 ticks this GP) idle=cb2/1/0x4000000000000002 softirq=11381/11381 fqs=38 [ 167.877641][ C0] (t=10500 jiffies g=6437 q=62) [ 167.882579][ C0] rcu: rcu_preempt kthread starved for 10419 jiffies! g6437 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.893657][ C0] rcu: RCU grace-period kthread stack dump: [ 167.899531][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 167.907417][ C0] Call Trace: [ 167.910703][ C0] __schedule+0x9a0/0xcc0 [ 167.915043][ C0] schedule+0x181/0x210 [ 167.919184][ C0] schedule_timeout+0x14f/0x240 [ 167.924063][ C0] ? run_local_timers+0x120/0x120 [ 167.929109][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.935474][ C0] kthread+0x332/0x350 [ 167.939539][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.944648][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.949234][ C0] ret_from_fork+0x24/0x30 [ 167.953656][ C0] NMI backtrace for cpu 0 [ 167.957980][ C0] CPU: 0 PID: 8286 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 167.965419][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.975477][ C0] Call Trace: [ 167.978749][ C0] [ 167.981588][ C0] dump_stack+0x1fb/0x318 [ 167.985999][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.990836][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.996991][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.003044][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.009026][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.014918][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.020021][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.025213][ C0] ? trace_hardirqs_off+0x74/0x80 [ 168.030228][ C0] update_process_times+0x12d/0x180 [ 168.035416][ C0] tick_sched_timer+0x263/0x420 [ 168.040253][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.045785][ C0] __hrtimer_run_queues+0x403/0x840 [ 168.050986][ C0] hrtimer_interrupt+0x38c/0xda0 [ 168.055927][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.061207][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 168.066739][ C0] apic_timer_interrupt+0xf/0x20 [ 168.071657][ C0] [ 168.074585][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 168.080729][ C0] Code: 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 00 01 1f 00 75 2c 8b 91 80 13 00 00 <83> fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 [ 168.100368][ C0] RSP: 0018:ffffc90001b97728 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.108777][ C0] RAX: ffffffff81487326 RBX: ffffea0002a3ccc0 RCX: ffff888093848580 [ 168.116735][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a3ccc0 [ 168.124792][ C0] RBP: ffffc90001b97750 R08: dffffc0000000000 R09: fffffbfff120248a [ 168.132750][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c67e620 [ 168.140859][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a52475e8 [ 168.148871][ C0] ? mod_memcg_page_state+0x16/0x190 [ 168.154282][ C0] ? free_thread_stack+0x124/0x590 [ 168.159398][ C0] ? mod_memcg_page_state+0x16/0x190 [ 168.164694][ C0] free_thread_stack+0x168/0x590 [ 168.169831][ C0] put_task_stack+0xa3/0x130 [ 168.174410][ C0] finish_task_switch+0x3f1/0x550 [ 168.179426][ C0] __schedule+0x9a8/0xcc0 [ 168.183752][ C0] schedule+0x181/0x210 [ 168.187896][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 168.194040][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 168.199836][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 168.205196][ C0] poll_schedule_timeout+0x11c/0x1c0 [ 168.210470][ C0] do_sys_poll+0x82f/0x1240 [ 168.214985][ C0] ? debug_object_activate+0x2f7/0x6f0 [ 168.220431][ C0] ? debug_object_active_state+0x1e3/0x4a0 [ 168.226226][ C0] ? __lock_acquire+0xc75/0x1be0 [ 168.231167][ C0] ? __x32_compat_sys_ppoll_time64+0xd0/0xd0 [ 168.237139][ C0] ? trace_hardirqs_on+0x74/0x80 [ 168.242066][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 168.246826][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 168.251575][ C0] ? read_seqcount_begin+0x125/0x1c0 [ 168.256849][ C0] ? trace_hardirqs_on+0x74/0x80 [ 168.261772][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 168.266519][ C0] ? read_seqcount_begin+0x17a/0x1c0 [ 168.271797][ C0] ? ktime_get_ts64+0x240/0x2c0 [ 168.276632][ C0] ? timespec64_add_safe+0x171/0x1b0 [ 168.281910][ C0] __se_sys_poll+0x1b0/0x360 [ 168.286492][ C0] __x64_sys_poll+0x7b/0x90 [ 168.291069][ C0] do_syscall_64+0xf7/0x1c0 [ 168.295563][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.301441][ C0] RIP: 0033:0x7f6680d84678 [ 168.305843][ C0] Code: 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 48 83 ec 28 8b 05 82 8f 2b 00 85 c0 75 17 48 63 d2 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 48 83 c4 28 c3 89 54 24 08 48 89 74 24 10 [ 168.325432][ C0] RSP: 002b:00007ffc11d7b4b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 168.333828][ C0] RAX: ffffffffffffffda RBX: 20c49ba5e353f7cf RCX: 00007f6680d84678 [ 168.341790][ C0] RDX: 000000000000ee26 RSI: 0000000000000001 RDI: 00007ffc11d7b570 [ 168.349746][ C0] RBP: 0000000000000000 R08: 00007ffc11d7b4c0 R09: 00007ffc11db70b8 [ 168.357702][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000015c7890 [ 168.365660][ C0] R13: 0000000000002091 R14: 00007ffc11d7b544 R15: 00000000015ae250