[ 43.281406][ T25] audit: type=1800 audit(1575431715.551:26): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.314910][ T25] audit: type=1800 audit(1575431715.551:27): pid=7964 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 43.339018][ T25] audit: type=1800 audit(1575431715.561:28): pid=7964 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. [ 44.029390][ T25] audit: type=1800 audit(1575431716.311:29): pid=7964 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 '10.128.0.80' (ECDSA) to the list of known hosts. 2019/12/04 03:55:25 fuzzer started 2019/12/04 03:55:27 dialing manager at 10.128.0.26:42111 2019/12/04 03:55:27 syscalls: 2689 2019/12/04 03:55:27 code coverage: enabled 2019/12/04 03:55:27 comparison tracing: enabled 2019/12/04 03:55:27 extra coverage: extra coverage is not supported by the kernel 2019/12/04 03:55:27 setuid sandbox: enabled 2019/12/04 03:55:27 namespace sandbox: enabled 2019/12/04 03:55:27 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 03:55:27 fault injection: enabled 2019/12/04 03:55:27 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 03:55:27 net packet injection: enabled 2019/12/04 03:55:27 net device setup: enabled 2019/12/04 03:55:27 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 03:55:27 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:55:28 executing program 0: bpf$PROG_LOAD(0x5, &(0x7f00000006c0)={0x10, 0x4, &(0x7f0000346fc8)=@framed={{}, [@alu={0x8000000201a7f19, 0x0, 0x6, 0x0, 0x1}]}, &(0x7f0000000040)='GPL\x00', 0x1, 0xfb, &(0x7f00001a7f05)=""/251, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) 03:55:28 executing program 1: r0 = socket$kcm(0xa, 0x2, 0x73) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @loopback}, 0x69) connect(r0, &(0x7f0000000180)=@in6={0xa, 0x0, 0x0, @empty}, 0x80) sendmmsg$inet_sctp(r0, &(0x7f0000004640)=[{&(0x7f0000002100)=@in6={0xa, 0x0, 0x0, @loopback}, 0x1c, 0x0}], 0x189, 0x0) syzkaller login: [ 56.508344][ T8129] IPVS: ftp: loaded support on port[0] = 21 [ 56.646776][ T8129] chnl_net:caif_netlink_parms(): no params data found 03:55:29 executing program 2: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet6_tcp(0xa, 0x1, 0x0) r3 = fcntl$dupfd(r2, 0x0, r2) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000cab000)=0x1b6) setresuid(0x0, r4, 0xee00) umount2(0x0, 0x0) [ 56.733060][ T8129] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.740656][ T8129] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.759957][ T8129] device bridge_slave_0 entered promiscuous mode [ 56.776321][ T8132] IPVS: ftp: loaded support on port[0] = 21 [ 56.782800][ T8129] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.789924][ T8129] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.799510][ T8129] device bridge_slave_1 entered promiscuous mode [ 56.822228][ T8129] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.855778][ T8129] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.896856][ T8129] team0: Port device team_slave_0 added [ 56.925963][ T8129] team0: Port device team_slave_1 added 03:55:29 executing program 3: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f00000001c0)=@newsa={0x140, 0x10, 0x501, 0x0, 0x0, {{@in6=@mcast2, @in6=@mcast2}, {@in=@local, 0x0, 0x6c}, @in=@dev, {}, {}, {}, 0x0, 0x0, 0x2}, [@algo_comp={0x48, 0x3, {{'deflate\x00'}}}, @extra_flags={0x8, 0x18, 0x40000000}]}, 0x140}}, 0x0) [ 57.023635][ T8129] device hsr_slave_0 entered promiscuous mode [ 57.092079][ T8129] device hsr_slave_1 entered promiscuous mode [ 57.149820][ T8134] IPVS: ftp: loaded support on port[0] = 21 [ 57.168969][ T8136] IPVS: ftp: loaded support on port[0] = 21 03:55:29 executing program 4: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx\x00', 0x80000000000a01, 0x0) ioctl$TCSETSW(r0, 0x5403, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}) setsockopt$inet_tcp_TCP_REPAIR_OPTIONS(0xffffffffffffffff, 0x6, 0x16, &(0x7f00000003c0)=[@mss], 0x1) write$binfmt_aout(r0, &(0x7f00000000c0)=ANY=[], 0xffffff78) ioctl$TCSETS(r0, 0x40045431, &(0x7f0000000200)) r1 = syz_open_pts(r0, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0xfffffffffffffffe, 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, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x10003, 0x80011, r2, 0x0) read(r1, &(0x7f00000000c0)=""/19, 0xff58) [ 57.257957][ T8129] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.313837][ T8129] netdevsim netdevsim0 netdevsim1: renamed from eth1 03:55:29 executing program 5: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$inet_udplite(0x2, 0x2, 0x88) setsockopt$IP_VS_SO_SET_ADD(r1, 0x0, 0x482, &(0x7f0000000000)={0x11, @broadcast, 0x0, 0x0, 'wrr\x00', 0x12, 0x3, 0x27}, 0x2c) [ 57.415124][ T8129] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.482657][ T8129] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.558153][ T8129] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.559273][ T8138] IPVS: ftp: loaded support on port[0] = 21 [ 57.565341][ T8129] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.565710][ T8129] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.585604][ T8129] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.595802][ T8132] chnl_net:caif_netlink_parms(): no params data found [ 57.625074][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.632410][ T8132] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.640545][ T8132] device bridge_slave_0 entered promiscuous mode [ 57.676495][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.684662][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.704800][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.713314][ T8132] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.720749][ T8132] device bridge_slave_1 entered promiscuous mode [ 57.740163][ T8132] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.750585][ T8132] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.769013][ T8141] IPVS: ftp: loaded support on port[0] = 21 [ 57.779891][ T8134] chnl_net:caif_netlink_parms(): no params data found [ 57.802099][ T8132] team0: Port device team_slave_0 added [ 57.810408][ T8132] team0: Port device team_slave_1 added [ 57.843138][ T8136] chnl_net:caif_netlink_parms(): no params data found [ 57.887178][ T8136] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.894482][ T8136] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.903070][ T8136] device bridge_slave_0 entered promiscuous mode [ 57.925302][ T8134] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.932534][ T8134] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.940095][ T8134] device bridge_slave_0 entered promiscuous mode [ 57.949089][ T8134] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.956281][ T8134] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.964206][ T8134] device bridge_slave_1 entered promiscuous mode [ 57.971044][ T8136] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.978175][ T8136] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.985878][ T8136] device bridge_slave_1 entered promiscuous mode [ 58.063889][ T8132] device hsr_slave_0 entered promiscuous mode [ 58.121301][ T8132] device hsr_slave_1 entered promiscuous mode [ 58.181025][ T8132] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.194743][ T8136] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.214711][ T8134] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.225595][ T8136] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.251308][ T8134] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.277094][ T8129] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.286486][ T8136] team0: Port device team_slave_0 added [ 58.297273][ T8136] team0: Port device team_slave_1 added [ 58.337413][ T8132] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.410095][ T8134] team0: Port device team_slave_0 added [ 58.446655][ T8132] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.496100][ T8132] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.563225][ T8134] team0: Port device team_slave_1 added [ 58.568908][ T8132] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.627121][ T8141] chnl_net:caif_netlink_parms(): no params data found [ 58.639661][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.648038][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.657507][ T8129] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.680817][ T8138] chnl_net:caif_netlink_parms(): no params data found [ 58.743486][ T8136] device hsr_slave_0 entered promiscuous mode [ 58.791324][ T8136] device hsr_slave_1 entered promiscuous mode [ 58.840943][ T8136] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.850081][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.859252][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.867978][ T2723] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.875052][ T2723] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.883850][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.892571][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.900799][ T2723] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.907939][ T2723] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.963626][ T8134] device hsr_slave_0 entered promiscuous mode [ 59.001319][ T8134] device hsr_slave_1 entered promiscuous mode [ 59.061028][ T8134] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.099514][ T2723] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.130136][ T8138] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.138392][ T8138] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.146399][ T8138] device bridge_slave_0 entered promiscuous mode [ 59.155213][ T8138] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.162555][ T8138] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.170093][ T8138] device bridge_slave_1 entered promiscuous mode [ 59.191929][ T8141] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.198983][ T8141] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.207131][ T8141] device bridge_slave_0 entered promiscuous mode [ 59.214205][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.230783][ T8129] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.241622][ T8129] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.266332][ T8141] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.274752][ T8141] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.283729][ T8141] device bridge_slave_1 entered promiscuous mode [ 59.294647][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.303132][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.311597][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.320064][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.328475][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.336921][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.345957][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.354224][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.363907][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.371656][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.380295][ T8138] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.406637][ T8141] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.420790][ T8141] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.432478][ T8138] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.442733][ T8134] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.496510][ T8134] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.566355][ T8134] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.630810][ T8136] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.673289][ T8134] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 59.715832][ T8141] team0: Port device team_slave_0 added [ 59.722415][ T8136] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.755734][ T8129] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.764753][ T3530] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.772295][ T3530] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.781297][ T8138] team0: Port device team_slave_0 added [ 59.794759][ T8141] team0: Port device team_slave_1 added [ 59.801462][ T8136] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.845843][ T8136] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.907590][ T8138] team0: Port device team_slave_1 added [ 59.952616][ T8138] device hsr_slave_0 entered promiscuous mode [ 60.001224][ T8138] device hsr_slave_1 entered promiscuous mode [ 60.061227][ T8138] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.095188][ T8132] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.113666][ T8132] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.163658][ T8141] device hsr_slave_0 entered promiscuous mode [ 60.201740][ T8141] device hsr_slave_1 entered promiscuous mode [ 60.271019][ T8141] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.278711][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.286351][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.321716][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.330131][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.338639][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.347354][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.348062][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.368930][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.378370][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.385498][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.393655][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.429644][ T8138] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 165.390847][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.397615][ C1] rcu: 1-...!: (10499 ticks this GP) idle=cd6/1/0x4000000000000002 softirq=11177/11177 fqs=2 [ 165.408090][ C1] (t=10500 jiffies g=6165 q=45) [ 165.413019][ C1] rcu: rcu_preempt kthread starved for 10496 jiffies! g6165 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 165.424100][ C1] rcu: RCU grace-period kthread stack dump: [ 165.429973][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.437862][ C1] Call Trace: [ 165.442746][ C1] __schedule+0x9a0/0xcc0 [ 165.447073][ C1] schedule+0x181/0x210 [ 165.451216][ C1] schedule_timeout+0x14f/0x240 [ 165.456056][ C1] ? run_local_timers+0x120/0x120 [ 165.461072][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.465855][ C1] kthread+0x332/0x350 [ 165.469935][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.475042][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.479625][ C1] ret_from_fork+0x24/0x30 [ 165.484046][ C1] NMI backtrace for cpu 1 [ 165.488500][ C1] CPU: 1 PID: 412 Comm: kworker/u4:5 Not tainted 5.4.0-syzkaller #0 [ 165.496598][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.506684][ C1] Workqueue: 0x0 (bat_events) [ 165.515082][ C1] Call Trace: [ 165.518358][ C1] [ 165.521221][ C1] dump_stack+0x1fb/0x318 [ 165.525544][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.530383][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.536523][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.542578][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.548552][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.554433][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.559537][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.564726][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.569743][ C1] update_process_times+0x12d/0x180 [ 165.574938][ C1] tick_sched_timer+0x263/0x420 [ 165.579778][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.585321][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.590529][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.595469][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.600746][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.606283][ C1] apic_timer_interrupt+0xf/0x20 [ 165.611201][ C1] [ 165.614131][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 [ 165.620273][ C1] Code: cd 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 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 [ 165.639864][ C1] RSP: 0018:ffffc900024d7bf8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.648265][ C1] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff8880a8a262c0 [ 165.656224][ C1] RDX: 0000000000000001 RSI: 00000000fffffffc RDI: ffffea00022de740 [ 165.664182][ C1] RBP: ffffc900024d7c20 R08: dffffc0000000000 R09: fffffbfff12877ed [ 165.672141][ C1] R10: fffffbfff12877ed R11: 0000000000000000 R12: dffffc0000000000 [ 165.680099][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a85199e8 [ 165.688079][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.693444][ C1] ? free_thread_stack+0x124/0x590 [ 165.698539][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.703900][ C1] free_thread_stack+0x168/0x590 [ 165.708828][ C1] put_task_stack+0xa3/0x130 [ 165.713406][ C1] finish_task_switch+0x3f1/0x550 [ 165.718462][ C1] __schedule+0x9a8/0xcc0 [ 165.723313][ C1] schedule+0x181/0x210 [ 165.727458][ C1] worker_thread+0x10d6/0x1630 [ 165.732230][ C1] kthread+0x332/0x350 [ 165.736287][ C1] ? rcu_lock_release+0x30/0x30 [ 165.741128][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.745707][ C1] ret_from_fork+0x24/0x30