[ 44.625706][ T25] audit: type=1800 audit(1575334019.537:26): pid=8025 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.651582][ T25] audit: type=1800 audit(1575334019.537:27): pid=8025 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.689155][ T25] audit: type=1800 audit(1575334019.537:28): pid=8025 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. [ 45.429839][ T25] audit: type=1800 audit(1575334020.367:29): pid=8025 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 '10.128.15.204' (ECDSA) to the list of known hosts. 2019/12/03 00:47:09 fuzzer started 2019/12/03 00:47:11 dialing manager at 10.128.0.26:38907 2019/12/03 00:47:11 syscalls: 2697 2019/12/03 00:47:11 code coverage: enabled 2019/12/03 00:47:11 comparison tracing: enabled 2019/12/03 00:47:11 extra coverage: extra coverage is not supported by the kernel 2019/12/03 00:47:11 setuid sandbox: enabled 2019/12/03 00:47:11 namespace sandbox: enabled 2019/12/03 00:47:11 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 00:47:11 fault injection: enabled 2019/12/03 00:47:11 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 00:47:11 net packet injection: enabled 2019/12/03 00:47:11 net device setup: enabled 2019/12/03 00:47:11 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 00:47:11 devlink PCI setup: PCI device 0000:00:10.0 is not available 00:47:12 executing program 0: mkdir(&(0x7f0000000240)='./file0\x00', 0x0) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f00000001c0)='configfs\x00', 0x0, 0x0) r0 = open(&(0x7f000054eff8)='./file0\x00', 0x0, 0x0) getdents64(r0, &(0x7f0000000280)=""/123, 0x7b) getdents64(r0, 0x0, 0x87) 00:47:12 executing program 1: recvmmsg(0xffffffffffffffff, &(0x7f0000003140)=[{{&(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @local}}}, 0x1b, 0x0}}], 0x1, 0x0, 0x0) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = syz_open_procfs(0x0, &(0x7f0000000180)='comm\x00') preadv(r3, &(0x7f00000017c0), 0x199, 0x0) syzkaller login: [ 58.002615][ T8187] IPVS: ftp: loaded support on port[0] = 21 00:47:13 executing program 2: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) kexec_load(0x0, 0x10, &(0x7f0000000080)=[{0x0, 0x0, 0x0, 0xa8dee000}], 0x0) io_setup(0xc01, 0x0) syz_open_procfs(0x0, 0x0) connect$unix(0xffffffffffffffff, &(0x7f0000000100)=@abs, 0x6e) openat$kvm(0xffffffffffffff9c, &(0x7f0000000080)='/dev/kvm\x00', 0x40101, 0x0) openat$uinput(0xffffffffffffff9c, 0x0, 0x0, 0x0) [ 58.139699][ T8189] IPVS: ftp: loaded support on port[0] = 21 [ 58.198263][ T8187] chnl_net:caif_netlink_parms(): no params data found [ 58.297644][ T8192] IPVS: ftp: loaded support on port[0] = 21 [ 58.358860][ T8187] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.367638][ T8187] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.376079][ T8187] device bridge_slave_0 entered promiscuous mode [ 58.399046][ T8187] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.406276][ T8187] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.415260][ T8187] device bridge_slave_1 entered promiscuous mode [ 58.429971][ T8189] chnl_net:caif_netlink_parms(): no params data found 00:47:13 executing program 3: mmap(&(0x7f0000000000/0xe7e000)=nil, 0xe7e000, 0x0, 0x40032, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000c00000/0x400000)=nil, 0x400000, 0x0, 0x8132, 0xffffffffffffffff, 0x0) r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f000095bffc), 0x4) [ 58.479504][ T8187] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.501889][ T8189] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.522701][ T8189] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.544813][ T8189] device bridge_slave_0 entered promiscuous mode [ 58.557914][ T8187] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.596213][ T8189] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.603304][ T8189] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.625333][ T8189] device bridge_slave_1 entered promiscuous mode [ 58.652115][ T8187] team0: Port device team_slave_0 added [ 58.659971][ T8187] team0: Port device team_slave_1 added [ 58.705956][ T8189] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.730796][ T8189] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 00:47:13 executing program 4: r0 = socket$netlink(0x10, 0x3, 0x8000000004) writev(r0, &(0x7f0000000200)=[{&(0x7f0000000240)="7d0000001200192340834b80040d8c560a0676ffffff81004e220000000058000b4824ca944f640094750a0e2900050028925aa8000000000000008000f0fffeffff09000000fff5dd000000100001000a020800fcff0000", 0x1e7}], 0x1) [ 58.807964][ T8187] device hsr_slave_0 entered promiscuous mode [ 58.864709][ T8187] device hsr_slave_1 entered promiscuous mode [ 58.923380][ T8196] IPVS: ftp: loaded support on port[0] = 21 [ 58.985782][ T8198] IPVS: ftp: loaded support on port[0] = 21 [ 58.996728][ T8189] team0: Port device team_slave_0 added 00:47:13 executing program 5: r0 = socket$inet6(0xa, 0x2, 0x0) setsockopt$inet6_int(r0, 0x29, 0x1000000000000019, &(0x7f0000548000)=0x3ffe, 0x4) sendto$inet6(r0, 0x0, 0xffffffffffffffad, 0x0, &(0x7f0000000080)={0xa, 0x4e21, 0x0, @rand_addr="ffd6f1b9201348544de96b337da295b8"}, 0x1c) recvmmsg(r0, &(0x7f0000005c80)=[{{&(0x7f0000000140)=@nl=@unspec, 0x80, 0x0, 0x0, 0x0, 0xffffffffffffff10}}], 0x16a, 0x2000, 0x0) [ 59.027328][ T8189] team0: Port device team_slave_1 added [ 59.049987][ T8192] chnl_net:caif_netlink_parms(): no params data found [ 59.136911][ T8189] device hsr_slave_0 entered promiscuous mode [ 59.165052][ T8189] device hsr_slave_1 entered promiscuous mode [ 59.204557][ T8189] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.218566][ T8187] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.298090][ T8187] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.378198][ T8187] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.439713][ T8187] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.535513][ T8189] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.546302][ T8201] IPVS: ftp: loaded support on port[0] = 21 [ 59.579129][ T8189] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.637081][ T8189] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.680489][ T8189] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.796762][ T8192] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.804207][ T8192] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.812706][ T8192] device bridge_slave_0 entered promiscuous mode [ 59.822802][ T8192] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.830457][ T8192] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.838485][ T8192] device bridge_slave_1 entered promiscuous mode [ 59.872746][ T8196] chnl_net:caif_netlink_parms(): no params data found [ 59.931296][ T8192] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.945329][ T8192] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.969585][ T8196] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.977809][ T8196] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.987486][ T8196] device bridge_slave_0 entered promiscuous mode [ 59.997733][ T8196] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.004899][ T8196] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.012833][ T8196] device bridge_slave_1 entered promiscuous mode [ 60.025566][ T8192] team0: Port device team_slave_0 added [ 60.051745][ T8196] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.063591][ T8192] team0: Port device team_slave_1 added [ 60.091776][ T8196] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.134079][ T8196] team0: Port device team_slave_0 added [ 60.186234][ T8192] device hsr_slave_0 entered promiscuous mode [ 60.224747][ T8192] device hsr_slave_1 entered promiscuous mode [ 60.284609][ T8192] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.313018][ T8196] team0: Port device team_slave_1 added [ 60.367838][ T8196] device hsr_slave_0 entered promiscuous mode [ 60.414836][ T8196] device hsr_slave_1 entered promiscuous mode [ 60.454490][ T8196] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.475211][ T8187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.482285][ T8198] chnl_net:caif_netlink_parms(): no params data found [ 60.541078][ T8192] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.568137][ T8192] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.629427][ T8192] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.671596][ T8187] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.685991][ T8201] chnl_net:caif_netlink_parms(): no params data found [ 60.707346][ T8192] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.738597][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.747011][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.793062][ T8198] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.804039][ T8198] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.812043][ T8198] device bridge_slave_0 entered promiscuous mode [ 60.823733][ T8202] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.832302][ T8202] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.840969][ T8202] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.848203][ T8202] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.856444][ T8202] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.865591][ T8202] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.873866][ T8202] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.881038][ T8202] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.890386][ T8189] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.900623][ T8196] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.951131][ T8196] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.006960][ T8198] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.014056][ T8198] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.022340][ T8198] device bridge_slave_1 entered promiscuous mode [ 61.029589][ T8202] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.049353][ T8196] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.076724][ T8196] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.123225][ T8201] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.131274][ T8201] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.139498][ T8201] device bridge_slave_0 entered promiscuous mode [ 61.147776][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.157188][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.165990][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.175831][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.185132][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.192719][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.202321][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.216216][ T8189] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.232218][ T8201] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.239802][ T8201] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.248085][ T8201] device bridge_slave_1 entered promiscuous mode [ 61.265189][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.276085][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.285709][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.292753][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.300450][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.308921][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.317362][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.325857][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.334073][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.341199][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.350234][ T8198] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.362701][ T8198] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.382732][ T8187] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.393480][ T8187] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.408857][ T8201] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.423363][ T8201] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.434539][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.443124][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.452012][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.461502][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.470205][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.478698][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.487265][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.515274][ T8198] team0: Port device team_slave_0 added [ 61.524276][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.536489][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.545680][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.554084][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.563633][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.593457][ T8198] team0: Port device team_slave_1 added [ 61.607223][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.616800][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.625652][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.635667][ T8201] team0: Port device team_slave_0 added [ 61.650863][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.659815][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.687232][ T8201] team0: Port device team_slave_1 added [ 61.726767][ T8198] device hsr_slave_0 entered promiscuous mode [ 61.785574][ T8198] device hsr_slave_1 entered promiscuous mode [ 61.844547][ T8198] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.853839][ T8189] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.889329][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.897347][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.946414][ T8201] device hsr_slave_0 entered promiscuous mode [ 61.985553][ T8201] device hsr_slave_1 entered promiscuous mode [ 62.024969][ T8201] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.038126][ T8187] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.070361][ T8189] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.100619][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.108624][ T2710] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.122232][ T8196] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.134073][ T8192] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.152113][ T8196] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.161282][ T8198] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.196874][ T8198] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 167.204328][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.211120][ C1] rcu: 1-...!: (10499 ticks this GP) idle=ab6/1/0x4000000000000002 softirq=10905/10905 fqs=39 [ 167.221767][ C1] (t=10501 jiffies g=6409 q=70) [ 167.226714][ C1] rcu: rcu_preempt kthread starved for 10424 jiffies! g6409 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.237803][ C1] rcu: RCU grace-period kthread stack dump: [ 167.243683][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.251570][ C1] Call Trace: [ 167.254857][ C1] __schedule+0x9a0/0xcc0 [ 167.259181][ C1] schedule+0x181/0x210 [ 167.263377][ C1] schedule_timeout+0x14f/0x240 [ 167.268217][ C1] ? run_local_timers+0x120/0x120 [ 167.273274][ C1] rcu_gp_kthread+0xed8/0x1770 [ 167.278039][ C1] kthread+0x332/0x350 [ 167.282096][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 167.287192][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.291945][ C1] ret_from_fork+0x24/0x30 [ 167.296360][ C1] NMI backtrace for cpu 1 [ 167.300678][ C1] CPU: 1 PID: 8210 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 167.308901][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.318952][ C1] Call Trace: [ 167.322223][ C1] [ 167.325064][ C1] dump_stack+0x1fb/0x318 [ 167.329413][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.334248][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.340392][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.346453][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.352420][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.358297][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.363420][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.368608][ C1] ? trace_hardirqs_off+0x74/0x80 [ 167.373626][ C1] update_process_times+0x12d/0x180 [ 167.378840][ C1] tick_sched_timer+0x263/0x420 [ 167.383712][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.389255][ C1] __hrtimer_run_queues+0x403/0x840 [ 167.394460][ C1] hrtimer_interrupt+0x38c/0xda0 [ 167.399409][ C1] ? debug_smp_processor_id+0x9/0x20 [ 167.404778][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 167.410484][ C1] apic_timer_interrupt+0xf/0x20 [ 167.415400][ C1] [ 167.418330][ C1] RIP: 0010:free_thread_stack+0x14c/0x590 [ 167.424042][ C1] Code: 2e 00 48 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff ff [ 167.443631][ C1] RSP: 0018:ffffc90002237ac8 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 [ 167.452026][ C1] RAX: 1ffff11012f14db1 RBX: ffff8880978a6d88 RCX: 0000000000000000 [ 167.459984][ C1] RDX: ffffc90001f99000 RSI: 0000000000000000 RDI: ffffea000250c400 [ 167.467949][ C1] RBP: ffffc90002237b00 R08: dffffc0000000000 R09: fffffbfff120248a [ 167.475908][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880978a6e20 [ 167.483870][ C1] R13: dffffc0000000000 R14: 1ffff11012f14dc4 R15: ffff8880933af9a8 [ 167.491847][ C1] ? free_thread_stack+0x12e/0x590 [ 167.497733][ C1] put_task_stack+0xa3/0x130 [ 167.502312][ C1] finish_task_switch+0x3f1/0x550 [ 167.507364][ C1] __schedule+0x9a8/0xcc0 [ 167.511694][ C1] preempt_schedule_irq+0xc1/0x140 [ 167.516795][ C1] retint_kernel+0x1b/0x2b [ 167.521209][ C1] RIP: 0010:lock_acquire+0x1b2/0x250 [ 167.526476][ C1] Code: c1 e8 03 42 80 3c 30 00 74 0c 48 c7 c7 28 96 0a 89 e8 b2 7e 56 00 48 83 3d d2 01 af 07 00 0f 84 9c 00 00 00 48 8b 7d c0 57 9d <0f> 1f 44 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 44 89 [ 167.546156][ C1] RSP: 0018:ffffc90002237d18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 167.554558][ C1] RAX: 1ffffffff12152c5 RBX: 0000000000000000 RCX: ffffffff815c6b62 [ 167.562516][ C1] RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000286 [ 167.570484][ C1] RBP: ffffc90002237d70 R08: dffffc0000000000 R09: fffffbfff13c852e [ 167.578443][ C1] R10: fffffbfff13c852e R11: 0000000000000000 R12: 0000000000000001 [ 167.586410][ C1] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888099662428 [ 167.594387][ C1] ? validate_chain+0x92/0x7bc0 [ 167.599242][ C1] __sb_start_write+0xeb/0x430 [ 167.604163][ C1] ? mnt_want_write+0x4a/0xa0 [ 167.608830][ C1] mnt_want_write+0x4a/0xa0 [ 167.613412][ C1] filename_create+0xd4/0x670 [ 167.618079][ C1] ? getname_flags+0x214/0x640 [ 167.623016][ C1] do_mkdirat+0x5a/0x320 [ 167.627266][ C1] __x64_sys_mkdir+0x60/0x70 [ 167.631877][ C1] do_syscall_64+0xf7/0x1c0 [ 167.636379][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 167.642277][ C1] RIP: 0033:0x45a679 [ 167.646165][ C1] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 167.666029][ C1] RSP: 002b:00007fa72b868c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 167.674426][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000000045a679 [ 167.682380][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000240 [ 167.690347][ C1] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 167.698654][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa72b8696d4 [ 167.706697][ C1] R13: 00000000004c0064 R14: 00000000004de498 R15: 00000000ffffffff