[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 27.204039] kauditd_printk_skb: 7 callbacks suppressed [ 27.204051] audit: type=1800 audit(1541407571.777:29): pid=5551 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 27.229592] audit: type=1800 audit(1541407571.787:30): pid=5551 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 49.995564] sshd (5693) used greatest stack depth: 15744 bytes left Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts. 2018/11/05 08:57:53 parsed 1 programs 2018/11/05 08:57:55 executed programs: 0 [ 730.999112] IPVS: ftp: loaded support on port[0] = 21 [ 731.008201] IPVS: ftp: loaded support on port[0] = 21 [ 731.041603] IPVS: ftp: loaded support on port[0] = 21 [ 731.044967] IPVS: ftp: loaded support on port[0] = 21 [ 731.064306] IPVS: ftp: loaded support on port[0] = 21 [ 731.089124] IPVS: ftp: loaded support on port[0] = 21 [ 731.778623] bridge0: port 1(bridge_slave_0) entered blocking state [ 731.785592] bridge0: port 1(bridge_slave_0) entered disabled state [ 731.795897] device bridge_slave_0 entered promiscuous mode [ 731.845389] bridge0: port 2(bridge_slave_1) entered blocking state [ 731.852839] bridge0: port 2(bridge_slave_1) entered disabled state [ 731.860791] device bridge_slave_1 entered promiscuous mode [ 731.900693] bridge0: port 1(bridge_slave_0) entered blocking state [ 731.918454] bridge0: port 1(bridge_slave_0) entered disabled state [ 731.925437] device bridge_slave_0 entered promiscuous mode [ 731.934604] bridge0: port 1(bridge_slave_0) entered blocking state [ 731.941513] bridge0: port 1(bridge_slave_0) entered disabled state [ 731.948668] device bridge_slave_0 entered promiscuous mode [ 731.961915] bridge0: port 1(bridge_slave_0) entered blocking state [ 731.969001] bridge0: port 1(bridge_slave_0) entered disabled state [ 731.975962] device bridge_slave_0 entered promiscuous mode [ 731.984130] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 731.992137] bridge0: port 1(bridge_slave_0) entered blocking state [ 731.999530] bridge0: port 1(bridge_slave_0) entered disabled state [ 732.007538] device bridge_slave_0 entered promiscuous mode [ 732.015582] bridge0: port 2(bridge_slave_1) entered blocking state [ 732.022218] bridge0: port 2(bridge_slave_1) entered disabled state [ 732.029726] device bridge_slave_1 entered promiscuous mode [ 732.037043] bridge0: port 1(bridge_slave_0) entered blocking state [ 732.043392] bridge0: port 1(bridge_slave_0) entered disabled state [ 732.051005] device bridge_slave_0 entered promiscuous mode [ 732.058452] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.066438] bridge0: port 2(bridge_slave_1) entered blocking state [ 732.072819] bridge0: port 2(bridge_slave_1) entered disabled state [ 732.080842] device bridge_slave_1 entered promiscuous mode [ 732.088428] bridge0: port 2(bridge_slave_1) entered blocking state [ 732.094796] bridge0: port 2(bridge_slave_1) entered disabled state [ 732.105366] device bridge_slave_1 entered promiscuous mode [ 732.112007] bridge0: port 2(bridge_slave_1) entered blocking state [ 732.118993] bridge0: port 2(bridge_slave_1) entered disabled state [ 732.125947] device bridge_slave_1 entered promiscuous mode [ 732.132908] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 732.153787] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 732.165168] bridge0: port 2(bridge_slave_1) entered blocking state [ 732.174343] bridge0: port 2(bridge_slave_1) entered disabled state [ 732.187344] device bridge_slave_1 entered promiscuous mode [ 732.194641] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 732.206033] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.223796] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 732.239362] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.246920] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 732.266482] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.290410] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.322034] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 732.386125] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.448092] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.476945] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.537939] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.549674] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.574357] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.585235] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 732.607188] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.618125] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.630021] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.644109] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.657215] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.668846] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.686092] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 732.695341] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 732.705478] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 732.740295] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 732.752927] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 732.759970] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 732.776982] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 732.788614] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.797409] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 732.807020] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.818023] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 732.833862] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.844311] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.856918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 732.864775] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.874135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 732.887764] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.903478] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.928245] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 732.935272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.945465] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 732.983930] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 732.997240] team0: Port device team_slave_0 added [ 733.080682] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 733.096073] team0: Port device team_slave_0 added [ 733.102650] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.115960] team0: Port device team_slave_1 added [ 733.124824] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 733.133339] team0: Port device team_slave_0 added [ 733.153614] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 733.162477] team0: Port device team_slave_0 added [ 733.174249] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.182317] team0: Port device team_slave_1 added [ 733.190651] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 733.198639] team0: Port device team_slave_0 added [ 733.207357] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.214776] team0: Port device team_slave_1 added [ 733.223422] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 733.231908] team0: Port device team_slave_0 added [ 733.241330] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.269490] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.279857] team0: Port device team_slave_1 added [ 733.288558] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.295901] team0: Port device team_slave_1 added [ 733.310124] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 733.327582] team0: Port device team_slave_1 added [ 733.334570] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.346943] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.358401] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.370075] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.394929] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.407787] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.415402] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.428850] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.438626] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.458274] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 733.466087] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.500266] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.520881] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.538525] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.547481] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 733.555141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.563106] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 733.571850] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.586859] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.597971] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.612696] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.626867] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.641857] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.649848] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.657964] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.665649] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.674393] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.682852] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.693586] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.707413] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 733.716476] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.724431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.744178] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.753817] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 733.762115] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.770452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 733.778496] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 733.786359] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 733.802115] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.814418] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.829187] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.838078] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 733.847302] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.855367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 733.874422] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 733.893485] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 733.907325] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 734.463932] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.470500] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.477709] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.484099] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.493946] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 734.523226] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.529663] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.536361] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.542731] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.564807] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 734.575132] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.581560] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.588269] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.594653] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.602594] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 734.620112] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 734.633379] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 734.646840] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 734.674176] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.680623] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.687367] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.693745] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.718187] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 734.784453] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.790923] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.797677] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.804048] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.820159] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 734.833883] bridge0: port 2(bridge_slave_1) entered blocking state [ 734.840314] bridge0: port 2(bridge_slave_1) entered forwarding state [ 734.847065] bridge0: port 1(bridge_slave_0) entered blocking state [ 734.853431] bridge0: port 1(bridge_slave_0) entered forwarding state [ 734.866952] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 735.653697] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 735.662248] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 735.677659] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 737.430814] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.470637] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.495252] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.524537] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.668323] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.716874] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 737.730716] 8021q: adding VLAN 0 to HW filter on device bond0 [ 737.746769] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 737.772811] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 737.792167] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 737.942141] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 737.965328] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 737.982622] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 737.995161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.012872] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 738.033097] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 738.040513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.051508] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 738.119404] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 738.125667] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 738.136955] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.153923] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 738.172052] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 738.182875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.265688] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 738.275689] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 738.287011] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.299696] 8021q: adding VLAN 0 to HW filter on device team0 [ 738.311805] 8021q: adding VLAN 0 to HW filter on device team0 [ 738.332572] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 738.346386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 738.358627] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 738.469265] 8021q: adding VLAN 0 to HW filter on device team0 [ 738.506899] 8021q: adding VLAN 0 to HW filter on device team0 [ 738.545335] 8021q: adding VLAN 0 to HW filter on device team0 [ 738.599872] 8021q: adding VLAN 0 to HW filter on device team0 [ 740.000492] hrtimer: interrupt took 27460 ns [ 740.005397] sched: DL replenish lagged too much [ 740.189654] IPVS: ftp: loaded support on port[0] = 21 [ 740.298266] IPVS: ftp: loaded support on port[0] = 21 [ 740.888349] IPVS: ftp: loaded support on port[0] = 21 [ 740.922437] IPVS: ftp: loaded support on port[0] = 21 2018/11/05 08:58:05 executed programs: 6 [ 741.371573] IPVS: ftp: loaded support on port[0] = 21 [ 741.415074] IPVS: ftp: loaded support on port[0] = 21 [ 741.436750] IPVS: ftp: loaded support on port[0] = 21 [ 742.032869] IPVS: ftp: loaded support on port[0] = 21 [ 742.446970] IPVS: ftp: loaded support on port[0] = 21 [ 742.622065] IPVS: ftp: loaded support on port[0] = 21 [ 743.230805] IPVS: ftp: loaded support on port[0] = 21 [ 743.951016] IPVS: ftp: loaded support on port[0] = 21 [ 744.412773] IPVS: ftp: loaded support on port[0] = 21 [ 744.444981] IPVS: ftp: loaded support on port[0] = 21 [ 744.868347] IPVS: ftp: loaded support on port[0] = 21 [ 745.264142] IPVS: ftp: loaded support on port[0] = 21 [ 745.422284] IPVS: ftp: loaded support on port[0] = 21 2018/11/05 08:58:11 executed programs: 10 [ 746.980334] IPVS: ftp: loaded support on port[0] = 21 [ 747.103650] IPVS: ftp: loaded support on port[0] = 21 [ 747.450607] IPVS: ftp: loaded support on port[0] = 21 [ 747.939286] IPVS: ftp: loaded support on port[0] = 21 [ 748.159733] IPVS: ftp: loaded support on port[0] = 21 [ 748.742924] IPVS: ftp: loaded support on port[0] = 21 [ 750.859574] IPVS: ftp: loaded support on port[0] = 21 [ 751.102712] IPVS: ftp: loaded support on port[0] = 21 [ 751.104643] IPVS: ftp: loaded support on port[0] = 21 [ 751.257634] IPVS: ftp: loaded support on port[0] = 21 [ 751.852296] IPVS: ftp: loaded support on port[0] = 21 [ 751.917668] IPVS: ftp: loaded support on port[0] = 21 [ 751.919098] IPVS: ftp: loaded support on port[0] = 21 [ 751.972528] IPVS: ftp: loaded support on port[0] = 21 [ 904.366373] INFO: task kworker/u4:2:32 blocked for more than 140 seconds. [ 904.373531] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 904.380121] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 904.388219] kworker/u4:2 D18504 32 2 0x80000000 [ 904.393929] Workqueue: netns cleanup_net [ 904.398100] Call Trace: [ 904.400709] __schedule+0x8cf/0x21d0 [ 904.404427] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 904.409619] ? __sched_text_start+0x8/0x8 [ 904.413793] ? trace_hardirqs_off_caller+0x300/0x300 [ 904.418975] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 904.424139] ? prepare_to_wait_event+0x39f/0xa10 [ 904.429079] ? prepare_to_wait_exclusive+0x480/0x480 [ 904.434313] schedule+0xfe/0x460 [ 904.437756] ? __schedule+0x21d0/0x21d0 [ 904.441754] ? perf_trace_sched_process_exec+0x860/0x860 [ 904.447276] ? do_raw_spin_unlock+0xa7/0x330 [ 904.451691] ? do_raw_spin_trylock+0x270/0x270 [ 904.456331] ? replenish_dl_entity.cold.55+0x36/0x36 [ 904.461446] ? __might_sleep+0x95/0x190 [ 904.465417] _synchronize_rcu_expedited.constprop.58+0x8df/0x9d0 [ 904.471633] ? dyntick_save_progress_counter+0xb0/0xb0 [ 904.476958] ? finish_wait+0x430/0x430 [ 904.480846] ? mark_held_locks+0x130/0x130 [ 904.485070] ? lock_unpin_lock+0x4a0/0x4a0 [ 904.489367] ? print_usage_bug+0xc0/0xc0 [ 904.493437] ? mark_held_locks+0x130/0x130 [ 904.497771] ? __lock_acquire+0x62f/0x4c20 [ 904.502022] ? zap_class+0x640/0x640 [ 904.505848] ? __lock_acquire+0x62f/0x4c20 [ 904.510617] ? print_usage_bug+0xc0/0xc0 [ 904.514673] ? zap_class+0x640/0x640 [ 904.518429] ? mark_held_locks+0x130/0x130 [ 904.522744] ? print_usage_bug+0xc0/0xc0 [ 904.527330] ? __lock_acquire+0x62f/0x4c20 [ 904.531617] ? print_usage_bug+0xc0/0xc0 [ 904.535671] ? up+0xea/0x1c0 [ 904.538757] ? lock_downgrade+0x900/0x900 [ 904.542922] ? zap_class+0x640/0x640 [ 904.546713] ? __lock_is_held+0xb5/0x140 [ 904.550798] synchronize_rcu_expedited+0x27/0xa0 [ 904.555552] synchronize_net+0x3b/0x60 [ 904.559510] dev_deactivate_many+0x543/0xdd0 [ 904.563933] ? qdisc_free_cb+0x20/0x20 [ 904.567887] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 904.573436] ? rtnl_is_locked+0xb5/0xf0 [ 904.577484] ? __might_sleep+0x95/0x190 [ 904.581487] __dev_close_many+0x197/0x380 [ 904.585634] ? netdev_notify_peers+0x1d0/0x1d0 [ 904.590351] ? zap_class+0x640/0x640 [ 904.594080] ? print_usage_bug+0xc0/0xc0 [ 904.598209] ? save_stack+0x43/0xd0 [ 904.601841] dev_close_many+0x2df/0x860 [ 904.605813] ? ops_exit_list.isra.5+0x105/0x160 [ 904.610543] ? dev_fill_metadata_dst+0x840/0x840 [ 904.615310] ? __lock_acquire+0x62f/0x4c20 [ 904.619618] ? lock_release+0xa10/0xa10 [ 904.623603] ? perf_trace_sched_process_exec+0x860/0x860 [ 904.629116] ? mark_held_locks+0xc7/0x130 [ 904.633288] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 904.639490] ? rtnl_is_locked+0xb5/0xf0 [ 904.643467] ? rtnl_trylock+0x20/0x20 [ 904.647470] ? __mutex_lock+0x85e/0x16f0 [ 904.651545] rollback_registered_many+0x543/0x1250 [ 904.656540] ? generic_xdp_install+0x590/0x590 [ 904.661136] ? kobject_put+0x86/0xe0 [ 904.664845] ? netdev_run_todo+0x75e/0xa60 [ 904.669155] ? ip6_tnl_link+0x281/0x330 [ 904.673136] ? register_netdev+0x50/0x50 [ 904.677268] ? mutex_unlock+0xd/0x10 [ 904.680994] ? zap_class+0x640/0x640 [ 904.684696] ? zap_class+0x640/0x640 [ 904.688568] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 904.694118] ? rtnl_is_locked+0xb5/0xf0 [ 904.698147] ? rtnl_trylock+0x20/0x20 [ 904.702147] ? find_held_lock+0x36/0x1c0 [ 904.706282] unregister_netdevice_many+0xfa/0x4c0 [ 904.711142] ? sit_exit_batch_net+0x261/0x800 [ 904.715678] ? unregister_netdev+0x30/0x30 [ 904.720011] ? check_preemption_disabled+0x48/0x280 [ 904.725042] ? __lock_is_held+0xb5/0x140 [ 904.729285] sit_exit_batch_net+0x5b6/0x800 [ 904.733626] ? ipip6_tunnel_init+0x2a0/0x2a0 [ 904.738110] ? _raw_spin_unlock_bh+0x30/0x40 [ 904.742536] ? pppol2tp_seq_next+0x40/0x40 [ 904.746829] ? ipip6_tunnel_init+0x2a0/0x2a0 [ 904.751252] ops_exit_list.isra.5+0x105/0x160 [ 904.755775] cleanup_net+0x555/0xb10 [ 904.759596] ? debug_object_deactivate+0x2eb/0x450 [ 904.764578] ? peernet2id_alloc+0x3e0/0x3e0 [ 904.769593] ? find_held_lock+0x36/0x1c0 [ 904.773657] ? zap_class+0x640/0x640 [ 904.777445] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 904.782988] ? check_preemption_disabled+0x48/0x280 [ 904.788101] ? __lock_is_held+0xb5/0x140 [ 904.792191] process_one_work+0xc8b/0x1c40 [ 904.796487] ? mark_held_locks+0x130/0x130 [ 904.800733] ? pwq_dec_nr_in_flight+0x4a0/0x4a0 [ 904.805400] ? __switch_to_asm+0x40/0x70 [ 904.809523] ? __switch_to_asm+0x40/0x70 [ 904.813607] ? __switch_to_asm+0x34/0x70 [ 904.817736] ? __switch_to_asm+0x40/0x70 [ 904.821814] ? __switch_to_asm+0x34/0x70 [ 904.825861] ? __switch_to_asm+0x40/0x70 [ 904.830024] ? __switch_to_asm+0x34/0x70 [ 904.834097] ? __switch_to_asm+0x40/0x70 [ 904.838330] ? __schedule+0x8d7/0x21d0 [ 904.842247] ? zap_class+0x640/0x640 [ 904.846071] ? lock_downgrade+0x900/0x900 [ 904.850397] ? trace_hardirqs_off+0xb8/0x310 [ 904.854816] ? kasan_check_read+0x11/0x20 [ 904.859013] ? do_raw_spin_unlock+0xa7/0x330 [ 904.863439] ? lock_acquire+0x1ed/0x520 [ 904.867476] ? worker_thread+0x3e0/0x1390 [ 904.871636] ? kasan_check_read+0x11/0x20 [ 904.875770] ? do_raw_spin_lock+0x14f/0x350 [ 904.880176] ? kasan_check_read+0x11/0x20 [ 904.884340] ? rwlock_bug.part.2+0x90/0x90 [ 904.888656] ? trace_hardirqs_on+0x310/0x310 [ 904.893089] worker_thread+0x17f/0x1390 [ 904.897732] ? __switch_to_asm+0x34/0x70 [ 904.901809] ? process_one_work+0x1c40/0x1c40 [ 904.906404] ? __sched_text_start+0x8/0x8 [ 904.910583] ? __kthread_parkme+0xce/0x1a0 [ 904.914807] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 904.920041] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 904.925165] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 904.930012] ? trace_hardirqs_on+0xbd/0x310 [ 904.934352] ? kasan_check_read+0x11/0x20 [ 904.938612] ? __kthread_parkme+0xce/0x1a0 [ 904.942863] ? trace_hardirqs_off_caller+0x300/0x300 [ 904.948045] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 904.953162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 904.958778] ? __kthread_parkme+0xfb/0x1a0 [ 904.963019] ? process_one_work+0x1c40/0x1c40 [ 904.967568] kthread+0x35a/0x440 [ 904.970946] ? kthread_stop+0x8f0/0x8f0 [ 904.974915] ret_from_fork+0x3a/0x50 [ 904.979124] INFO: task syz-executor3:7314 blocked for more than 140 seconds. [ 904.986346] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 904.992174] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 905.000196] syz-executor3 D21656 7314 5725 0x80000004 [ 905.005929] Call Trace: [ 905.008782] __schedule+0x8cf/0x21d0 [ 905.012704] ? __sched_text_start+0x8/0x8 [ 905.017036] ? kasan_slab_free+0xe/0x10 [ 905.021095] ? print_usage_bug+0xc0/0xc0 [ 905.025155] ? iput+0x674/0xa90 [ 905.029171] ? __sock_release+0x1ec/0x250 [ 905.033312] ? sock_release+0x17/0x20 [ 905.037173] ? zap_class+0x640/0x640 [ 905.041039] ? zap_class+0x640/0x640 [ 905.044755] ? unshare_nsproxy_namespaces+0xc3/0x1f0 [ 905.049931] ? ksys_unshare+0x79c/0x10b0 [ 905.054055] ? zap_class+0x640/0x640 [ 905.057858] ? trace_hardirqs_on+0x310/0x310 [ 905.062349] ? find_held_lock+0x36/0x1c0 [ 905.066610] schedule+0xfe/0x460 [ 905.069985] ? __mutex_lock+0xafa/0x16f0 [ 905.074036] ? __schedule+0x21d0/0x21d0 [ 905.078085] ? kasan_check_read+0x11/0x20 [ 905.082246] ? do_raw_spin_unlock+0xa7/0x330 [ 905.086872] ? do_raw_spin_trylock+0x270/0x270 [ 905.091466] ? ww_mutex_lock.part.8+0xf0/0xf0 [ 905.095959] ? mutex_destroy+0x200/0x200 [ 905.100104] schedule_preempt_disabled+0x13/0x20 [ 905.105010] __mutex_lock+0xaff/0x16f0 [ 905.108985] ? rtnl_lock+0x17/0x20 [ 905.112579] ? mutex_trylock+0x2b0/0x2b0 [ 905.116786] ? destroy_inode+0x200/0x200 [ 905.120878] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 905.126492] ? kasan_check_read+0x11/0x20 [ 905.130646] ? do_raw_spin_unlock+0xa7/0x330 [ 905.135178] ? netlink_release+0x4bf/0xbe0 [ 905.139515] ? trace_hardirqs_off_caller+0x300/0x300 [ 905.144628] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 905.150360] ? iput+0x679/0xa90 [ 905.153655] ? inode_add_lru+0x2a0/0x2a0 [ 905.158412] ? netlink_remove+0xf50/0xf50 [ 905.162566] ? __wait_rcu_gp+0x274/0x360 [ 905.166751] ? __lock_is_held+0xb5/0x140 [ 905.170811] mutex_lock_nested+0x16/0x20 [ 905.174868] ? mutex_lock_nested+0x16/0x20 [ 905.179169] rtnl_lock+0x17/0x20 [ 905.182547] tunnel_key_exit_net+0x7d/0x450 [ 905.186928] ? netlink_kernel_release+0x53/0x60 [ 905.191696] ? tunnel_key_walker+0x3a0/0x3a0 [ 905.196106] ? nfqnl_recv_unsupp+0x10/0x10 [ 905.200423] ? tunnel_key_walker+0x3a0/0x3a0 [ 905.204841] ops_exit_list.isra.5+0x105/0x160 [ 905.209404] setup_net+0x501/0x8d0 [ 905.212965] ? copy_net_ns+0x261/0x4a0 [ 905.216922] ? ops_init+0x560/0x560 [ 905.220562] ? lock_release+0xa10/0xa10 [ 905.224526] ? perf_trace_sched_process_exec+0x860/0x860 [ 905.230127] ? rcu_pm_notify+0xc0/0xc0 [ 905.234041] ? down_read_killable+0x90/0x150 [ 905.238510] ? copy_net_ns+0x28c/0x4a0 [ 905.242405] ? down_write+0x130/0x130 [ 905.246331] copy_net_ns+0x2b1/0x4a0 [ 905.250062] ? net_drop_ns+0x30/0x30 [ 905.253774] ? do_mount+0x1ff0/0x1ff0 [ 905.257671] ? kmem_cache_alloc+0x33a/0x730 [ 905.262017] ? rcu_softirq_qs+0x20/0x20 [ 905.265993] create_new_namespaces+0x6ad/0x900 [ 905.270701] ? sys_ni_syscall+0x20/0x20 [ 905.274697] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 905.280324] ? ns_capable_common+0x13f/0x170 [ 905.284757] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 905.290234] ksys_unshare+0x79c/0x10b0 [ 905.294124] ? posix_ktime_get_ts+0x15/0x20 [ 905.298514] ? walk_process_tree+0x440/0x440 [ 905.302943] ? _copy_to_user+0xc8/0x110 [ 905.306998] ? put_timespec64+0x10f/0x1b0 [ 905.311158] ? nsecs_to_jiffies+0x30/0x30 [ 905.315299] ? do_syscall_64+0x9a/0x820 [ 905.319344] ? do_syscall_64+0x9a/0x820 [ 905.323376] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 905.328037] ? trace_hardirqs_on+0xbd/0x310 [ 905.332466] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 905.338074] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 905.343450] ? trace_hardirqs_off_caller+0x300/0x300 [ 905.348629] __x64_sys_unshare+0x31/0x40 [ 905.352700] do_syscall_64+0x1b9/0x820 [ 905.356649] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 905.362020] ? syscall_return_slowpath+0x5e0/0x5e0 [ 905.367015] ? trace_hardirqs_on_caller+0x310/0x310 [ 905.372052] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 905.377180] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 905.383856] ? __switch_to_asm+0x40/0x70 [ 905.388114] ? __switch_to_asm+0x34/0x70 [ 905.392191] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 905.397121] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 905.402317] RIP: 0033:0x457569 [ 905.405502] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 905.425516] RSP: 002b:00007feb71ff7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 905.433436] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 905.440760] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 905.448114] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 905.455391] R10: 0000000000000000 R11: 0000000000000246 R12: 00007feb71ff86d4 [ 905.462721] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 905.470049] INFO: task syz-executor1:7326 blocked for more than 140 seconds. [ 905.477300] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 905.483096] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 905.491177] syz-executor1 D20896 7326 5726 0x80000004 [ 905.496890] Call Trace: [ 905.499488] __schedule+0x8cf/0x21d0 [ 905.503196] ? __sched_text_start+0x8/0x8 [ 905.507413] ? zap_class+0x640/0x640 [ 905.511182] ? lock_downgrade+0x900/0x900 [ 905.515340] ? check_preemption_disabled+0x48/0x280 [ 905.520426] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 905.525368] ? kasan_check_read+0x11/0x20 [ 905.529573] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 905.534860] ? find_held_lock+0x36/0x1c0 [ 905.538986] schedule+0xfe/0x460 [ 905.542362] ? __mutex_lock+0xafa/0x16f0 [ 905.547227] ? __schedule+0x21d0/0x21d0 [ 905.551209] ? kasan_check_read+0x11/0x20 [ 905.555342] ? do_raw_spin_unlock+0xa7/0x330 [ 905.559806] ? do_raw_spin_trylock+0x270/0x270 [ 905.564397] ? ww_mutex_lock.part.8+0xf0/0xf0 [ 905.569029] ? mutex_destroy+0x200/0x200 [ 905.573108] schedule_preempt_disabled+0x13/0x20 [ 905.577925] __mutex_lock+0xaff/0x16f0 [ 905.581823] ? rtnl_lock+0x17/0x20 [ 905.585355] ? mutex_trylock+0x2b0/0x2b0 [ 905.589491] ? save_stack+0x43/0xd0 [ 905.593138] ? __kasan_slab_free+0x102/0x150 [ 905.597605] ? kasan_slab_free+0xe/0x10 [ 905.601590] ? kfree+0xcf/0x230 [ 905.604867] ? print_usage_bug+0xc0/0xc0 [ 905.608994] ? ila_exit_net+0x15/0x20 [ 905.612913] ? zap_class+0x640/0x640 [ 905.616683] ? create_new_namespaces+0x6ad/0x900 [ 905.621444] ? unshare_nsproxy_namespaces+0xc3/0x1f0 [ 905.626610] ? ksys_unshare+0x79c/0x10b0 [ 905.630679] ? __x64_sys_unshare+0x31/0x40 [ 905.634910] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 905.640345] ? do_raw_spin_unlock+0xa7/0x330 [ 905.644772] ? trace_hardirqs_on+0x310/0x310 [ 905.649252] ? find_held_lock+0x36/0x1c0 [ 905.653331] ? lock_downgrade+0x900/0x900 [ 905.657632] ? check_preemption_disabled+0x48/0x280 [ 905.662666] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 905.667662] ? kasan_check_read+0x11/0x20 [ 905.671817] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 905.677804] ? rcu_softirq_qs+0x20/0x20 [ 905.681789] mutex_lock_nested+0x16/0x20 [ 905.685849] ? mutex_lock_nested+0x16/0x20 [ 905.690200] rtnl_lock+0x17/0x20 [ 905.693583] xfrmi_exit_net+0x208/0x4c0 [ 905.697625] ? xfrmi_dev_uninit+0x440/0x440 [ 905.701960] ? ila_xlat_exit_net+0x2a1/0x420 [ 905.706460] ? ops_init+0x11d/0x560 [ 905.710185] ? ila_xlat_init_net+0x3b0/0x3b0 [ 905.714596] ? ops_init+0x122/0x560 [ 905.718293] ? mip6_destopt_init_state.cold.13+0x55/0x55 [ 905.723758] ? xfrmi_dev_uninit+0x440/0x440 [ 905.728226] ops_exit_list.isra.5+0xb0/0x160 [ 905.732651] setup_net+0x501/0x8d0 [ 905.736255] ? copy_net_ns+0x261/0x4a0 [ 905.740193] ? ops_init+0x560/0x560 [ 905.743824] ? lock_release+0xa10/0xa10 [ 905.747865] ? perf_trace_sched_process_exec+0x860/0x860 [ 905.753335] ? rcu_pm_notify+0xc0/0xc0 [ 905.757278] ? down_read_killable+0x90/0x150 [ 905.761684] ? copy_net_ns+0x28c/0x4a0 [ 905.765568] ? down_write+0x130/0x130 [ 905.769442] copy_net_ns+0x2b1/0x4a0 [ 905.773162] ? retint_kernel+0x2d/0x2d [ 905.777106] ? net_drop_ns+0x30/0x30 [ 905.780830] ? create_new_namespaces+0x5d6/0x900 [ 905.785571] ? copy_net_ns+0x20/0x4a0 [ 905.789426] create_new_namespaces+0x6ad/0x900 [ 905.794037] ? sys_ni_syscall+0x20/0x20 [ 905.798093] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 905.803636] ? ns_capable_common+0x13f/0x170 [ 905.808758] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 905.813694] ksys_unshare+0x79c/0x10b0 [ 905.817651] ? retint_kernel+0x2d/0x2d [ 905.821553] ? walk_process_tree+0x440/0x440 [ 905.825960] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 905.830810] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 905.835406] ? retint_kernel+0x2d/0x2d [ 905.839357] ? trace_hardirqs_on_caller+0xc0/0x310 [ 905.844298] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 905.849122] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 905.854580] ? _copy_to_user+0xc8/0x110 [ 905.858632] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 905.863400] ? retint_kernel+0x2d/0x2d [ 905.867354] __x64_sys_unshare+0x31/0x40 [ 905.871420] do_syscall_64+0x1b9/0x820 [ 905.875297] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 905.880709] ? syscall_return_slowpath+0x5e0/0x5e0 [ 905.885650] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 905.890681] ? trace_hardirqs_on_caller+0x310/0x310 [ 905.895783] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 905.900878] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 905.906502] ? prepare_exit_to_usermode+0x291/0x3b0 [ 905.911623] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 905.916600] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 905.921800] RIP: 0033:0x457569 [ 905.924980] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 905.944626] RSP: 002b:00007fb670b40c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 905.952405] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 905.959722] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 905.967250] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 905.974529] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb670b416d4 [ 905.981852] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 905.989180] INFO: task syz-executor1:7327 blocked for more than 140 seconds. [ 905.996409] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 906.002416] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 906.010460] syz-executor1 D23432 7327 5726 0x80000004 [ 906.016112] Call Trace: [ 906.018798] __schedule+0x8cf/0x21d0 [ 906.022521] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 906.027680] ? __sched_text_start+0x8/0x8 [ 906.031827] ? trace_hardirqs_off_caller+0x300/0x300 [ 906.037029] ? find_held_lock+0x36/0x1c0 [ 906.041237] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 906.046504] ? prepare_to_wait_event+0x39f/0xa10 [ 906.051274] ? prepare_to_wait_exclusive+0x480/0x480 [ 906.056449] schedule+0xfe/0x460 [ 906.059849] ? __schedule+0x21d0/0x21d0 [ 906.063822] ? perf_trace_sched_process_exec+0x860/0x860 [ 906.070019] ? do_raw_spin_unlock+0xa7/0x330 [ 906.074427] ? do_raw_spin_trylock+0x270/0x270 [ 906.079123] ? replenish_dl_entity.cold.55+0x36/0x36 [ 906.084239] ? __might_sleep+0x95/0x190 [ 906.088278] _synchronize_rcu_expedited.constprop.58+0x8df/0x9d0 [ 906.094442] ? dyntick_save_progress_counter+0xb0/0xb0 [ 906.099805] ? __lock_acquire+0x62f/0x4c20 [ 906.104057] ? finish_wait+0x430/0x430 [ 906.107994] ? print_usage_bug+0xc0/0xc0 [ 906.112059] ? mark_held_locks+0x130/0x130 [ 906.116374] ? mark_held_locks+0x130/0x130 [ 906.120615] ? mark_held_locks+0x130/0x130 [ 906.124838] ? zap_class+0x640/0x640 [ 906.128726] ? find_held_lock+0x36/0x1c0 [ 906.132809] ? is_bpf_text_address+0xac/0x170 [ 906.137472] ? lock_downgrade+0x900/0x900 [ 906.141631] ? check_preemption_disabled+0x48/0x280 [ 906.146717] ? kasan_check_read+0x11/0x20 [ 906.150883] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 906.156224] ? rcu_softirq_qs+0x20/0x20 [ 906.160210] ? print_usage_bug+0xc0/0xc0 [ 906.164267] ? is_bpf_text_address+0xd3/0x170 [ 906.168849] ? zap_class+0x640/0x640 [ 906.172579] ? trace_hardirqs_on+0xbd/0x310 [ 906.176959] ? __lock_is_held+0xb5/0x140 [ 906.181221] synchronize_rcu_expedited+0x27/0xa0 [ 906.186048] synchronize_net+0x3b/0x60 [ 906.190051] tipc_nametbl_stop+0x968/0xca0 [ 906.194303] ? mark_held_locks+0xc7/0x130 [ 906.199150] ? tipc_nametbl_init+0x5e0/0x5e0 [ 906.203560] ? kfree+0x11e/0x230 [ 906.207050] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 906.211643] ? trace_hardirqs_on+0xbd/0x310 [ 906.215960] ? tipc_bcast_stop+0x279/0x3d0 [ 906.220337] ? trace_hardirqs_off_caller+0x300/0x300 [ 906.225462] ? __kasan_slab_free+0x119/0x150 [ 906.229929] ? tipc_bcast_stop+0x279/0x3d0 [ 906.234176] ? tipc_bcast_stop+0x279/0x3d0 [ 906.238480] ? tipc_bcast_init+0xc90/0xc90 [ 906.242832] ? __tipc_nl_media_set.cold.23+0x25/0x25 [ 906.247999] tipc_exit_net+0x2d/0x40 [ 906.251725] ops_exit_list.isra.5+0xb0/0x160 [ 906.256213] setup_net+0x501/0x8d0 [ 906.259767] ? copy_net_ns+0x261/0x4a0 [ 906.263653] ? ops_init+0x560/0x560 [ 906.267353] ? lock_release+0xa10/0xa10 [ 906.271332] ? perf_trace_sched_process_exec+0x860/0x860 [ 906.277517] ? rcu_pm_notify+0xc0/0xc0 [ 906.281420] ? down_read_killable+0x90/0x150 [ 906.285817] ? copy_net_ns+0x28c/0x4a0 [ 906.289833] ? down_write+0x130/0x130 [ 906.293748] copy_net_ns+0x2b1/0x4a0 [ 906.297531] ? net_drop_ns+0x30/0x30 [ 906.301386] ? do_mount+0x1ff0/0x1ff0 [ 906.305242] ? create_new_namespaces+0xbc/0x900 [ 906.309999] create_new_namespaces+0x6ad/0x900 [ 906.314597] ? sys_ni_syscall+0x20/0x20 [ 906.318647] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 906.324241] ? ns_capable_common+0x13f/0x170 [ 906.329375] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 906.334399] ksys_unshare+0x79c/0x10b0 [ 906.338349] ? posix_ktime_get_ts+0x15/0x20 [ 906.342679] ? walk_process_tree+0x440/0x440 [ 906.347180] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 906.351950] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 906.356606] ? retint_kernel+0x2d/0x2d [ 906.360499] ? trace_hardirqs_on_caller+0xc0/0x310 [ 906.365427] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 906.370264] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 906.375725] ? _copy_to_user+0xc8/0x110 [ 906.379804] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 906.384577] ? retint_kernel+0x2d/0x2d [ 906.388553] __x64_sys_unshare+0x31/0x40 [ 906.392667] do_syscall_64+0x1b9/0x820 [ 906.396615] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 906.401985] ? syscall_return_slowpath+0x5e0/0x5e0 [ 906.406969] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 906.411824] ? trace_hardirqs_on_caller+0x310/0x310 [ 906.416917] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 906.421941] ? prepare_exit_to_usermode+0x291/0x3b0 [ 906.427015] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 906.431893] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 906.437256] RIP: 0033:0x457569 [ 906.440457] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 906.460308] RSP: 002b:00007fb670b1fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 906.468322] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 906.475598] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 906.482939] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 906.490257] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb670b206d4 [ 906.497609] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 906.504952] INFO: task syz-executor5:7341 blocked for more than 140 seconds. [ 906.512206] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 906.518043] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 906.526001] syz-executor5 D22744 7341 5734 0x80000004 [ 906.532204] Call Trace: [ 906.534799] __schedule+0x8cf/0x21d0 [ 906.538568] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 906.543678] ? __sched_text_start+0x8/0x8 [ 906.547963] ? trace_hardirqs_off_caller+0x300/0x300 [ 906.553100] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 906.558314] ? prepare_to_wait_event+0x39f/0xa10 [ 906.563082] ? prepare_to_wait_exclusive+0x480/0x480 [ 906.568293] schedule+0xfe/0x460 [ 906.571671] ? __schedule+0x21d0/0x21d0 [ 906.575666] ? perf_trace_sched_process_exec+0x860/0x860 [ 906.581177] ? do_raw_spin_unlock+0xa7/0x330 [ 906.585696] ? do_raw_spin_trylock+0x270/0x270 [ 906.590997] ? replenish_dl_entity.cold.55+0x36/0x36 [ 906.596102] ? __might_sleep+0x95/0x190 [ 906.600144] _synchronize_rcu_expedited.constprop.58+0x8df/0x9d0 [ 906.606348] ? dyntick_save_progress_counter+0xb0/0xb0 [ 906.611619] ? __kernel_text_address+0xd/0x40 [ 906.616104] ? unwind_get_return_address+0x61/0xa0 [ 906.621100] ? __save_stack_trace+0x8d/0xf0 [ 906.625443] ? finish_wait+0x430/0x430 [ 906.629394] ? save_stack+0xa9/0xd0 [ 906.633041] ? mark_held_locks+0x130/0x130 [ 906.637358] ? copy_net_ns+0x2b1/0x4a0 [ 906.641251] ? create_new_namespaces+0x6ad/0x900 [ 906.646002] ? unshare_nsproxy_namespaces+0xc3/0x1f0 [ 906.651289] ? ksys_unshare+0x79c/0x10b0 [ 906.655358] ? __x64_sys_unshare+0x31/0x40 [ 906.659659] ? do_syscall_64+0x1b9/0x820 [ 906.663792] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 906.669365] ? trace_hardirqs_off+0xb8/0x310 [ 906.673894] ? kasan_check_read+0x11/0x20 [ 906.678114] ? do_raw_spin_unlock+0xa7/0x330 [ 906.682600] ? trace_hardirqs_on+0x310/0x310 [ 906.687207] ? mark_held_locks+0xc7/0x130 [ 906.691372] ? kfree+0x11e/0x230 [ 906.694735] ? kfree+0x11e/0x230 [ 906.698404] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 906.702995] ? trace_hardirqs_on+0xbd/0x310 [ 906.707420] ? tipc_nametbl_stop+0x974/0xca0 [ 906.711844] ? trace_hardirqs_off_caller+0x300/0x300 [ 906.718187] ? __kasan_slab_free+0x119/0x150 [ 906.722829] ? tipc_nametbl_stop+0x974/0xca0 [ 906.727309] ? zap_class+0x640/0x640 [ 906.731116] ? tipc_sk_rht_destroy+0x1ed/0x360 [ 906.735723] ? __lock_is_held+0xb5/0x140 [ 906.739866] synchronize_rcu_expedited+0x27/0xa0 [ 906.744635] synchronize_net+0x3b/0x60 [ 906.748594] tipc_sk_rht_destroy+0x219/0x360 [ 906.753015] ? tipc_sk_rht_init+0x370/0x370 [ 906.757416] ? __tipc_nl_media_set.cold.23+0x25/0x25 [ 906.762526] tipc_exit_net+0x35/0x40 [ 906.766389] ops_exit_list.isra.5+0xb0/0x160 [ 906.770910] setup_net+0x501/0x8d0 [ 906.774445] ? copy_net_ns+0x261/0x4a0 [ 906.778386] ? ops_init+0x560/0x560 [ 906.782024] ? lock_release+0xa10/0xa10 [ 906.786323] ? perf_trace_sched_process_exec+0x860/0x860 [ 906.791784] ? rcu_pm_notify+0xc0/0xc0 [ 906.795663] ? down_read_killable+0x90/0x150 [ 906.800119] ? copy_net_ns+0x28c/0x4a0 [ 906.804017] ? down_write+0x130/0x130 [ 906.807892] copy_net_ns+0x2b1/0x4a0 [ 906.811612] ? net_drop_ns+0x30/0x30 [ 906.815323] ? do_mount+0x1ff0/0x1ff0 [ 906.819183] ? kmem_cache_alloc+0x33a/0x730 [ 906.823580] ? rcu_softirq_qs+0x20/0x20 [ 906.827647] create_new_namespaces+0x6ad/0x900 [ 906.832242] ? sys_ni_syscall+0x20/0x20 [ 906.836275] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 906.841831] ? ns_capable_common+0x13f/0x170 [ 906.846960] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 906.851895] ksys_unshare+0x79c/0x10b0 [ 906.855770] ? posix_ktime_get_ts+0x15/0x20 [ 906.860152] ? walk_process_tree+0x440/0x440 [ 906.864576] ? _copy_to_user+0xc8/0x110 [ 906.868609] ? put_timespec64+0x10f/0x1b0 [ 906.872769] ? nsecs_to_jiffies+0x30/0x30 [ 906.876970] ? do_syscall_64+0x9a/0x820 [ 906.881080] ? do_syscall_64+0x9a/0x820 [ 906.885048] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 906.889708] ? trace_hardirqs_on+0xbd/0x310 [ 906.894055] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 906.899702] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 906.905141] ? trace_hardirqs_off_caller+0x300/0x300 [ 906.910330] __x64_sys_unshare+0x31/0x40 [ 906.914399] do_syscall_64+0x1b9/0x820 [ 906.918335] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 906.923705] ? syscall_return_slowpath+0x5e0/0x5e0 [ 906.928815] ? trace_hardirqs_on_caller+0x310/0x310 [ 906.933892] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 906.938976] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 906.945662] ? __switch_to_asm+0x40/0x70 [ 906.949791] ? __switch_to_asm+0x34/0x70 [ 906.953928] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 906.958856] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 906.964057] RIP: 0033:0x457569 [ 906.967308] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 906.986765] RSP: 002b:00007fae7a6bac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 906.994469] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 907.001806] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 907.009263] RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 [ 907.016596] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fae7a6bb6d4 [ 907.023866] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 907.031231] INFO: task syz-executor0:7332 blocked for more than 140 seconds. [ 907.038453] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 907.044241] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 907.052327] syz-executor0 D22608 7332 5731 0x80000004 [ 907.058004] Call Trace: [ 907.060597] __schedule+0x8cf/0x21d0 [ 907.064351] ? __sched_text_start+0x8/0x8 [ 907.068596] ? zap_class+0x640/0x640 [ 907.072313] ? zap_class+0x640/0x640 [ 907.076017] ? check_preemption_disabled+0x48/0x280 [ 907.081116] ? zap_class+0x640/0x640 [ 907.084902] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 907.089996] ? kasan_check_read+0x11/0x20 [ 907.094152] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 907.099498] ? find_held_lock+0x36/0x1c0 [ 907.103572] schedule+0xfe/0x460 [ 907.107007] ? __mutex_lock+0xafa/0x16f0 [ 907.111089] ? __schedule+0x21d0/0x21d0 [ 907.115055] ? kasan_check_read+0x11/0x20 [ 907.119925] ? do_raw_spin_unlock+0xa7/0x330 [ 907.124432] ? do_raw_spin_trylock+0x270/0x270 [ 907.129294] ? ww_mutex_lock.part.8+0xf0/0xf0 [ 907.133798] ? mutex_destroy+0x200/0x200 [ 907.137936] schedule_preempt_disabled+0x13/0x20 [ 907.142760] __mutex_lock+0xaff/0x16f0 [ 907.146704] ? rtnl_lock+0x17/0x20 [ 907.150266] ? ksys_unshare+0x79c/0x10b0 [ 907.154320] ? mutex_trylock+0x2b0/0x2b0 [ 907.158441] ? trace_hardirqs_on+0x310/0x310 [ 907.162855] ? pde_free+0xb1/0x100 [ 907.166534] ? rcu_read_lock_sched_held+0x14f/0x180 [ 907.171570] ? kfree+0x11e/0x230 [ 907.174920] ? kfree+0x11e/0x230 [ 907.178339] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 907.182976] ? trace_hardirqs_on+0xbd/0x310 [ 907.187358] ? trace_hardirqs_off_caller+0x300/0x300 [ 907.192472] ? __kasan_slab_free+0x119/0x150 [ 907.196949] ? cache_destroy_net+0x39/0x50 [ 907.201193] ? cache_destroy_net+0x39/0x50 [ 907.205419] ? rsc_cache_destroy_net+0x266/0x3c0 [ 907.210242] ? cache_destroy_net+0x39/0x50 [ 907.214526] ? gss_svc_shutdown_net+0x274/0x3d0 [ 907.219265] ? gss_svc_init_net+0xc60/0xc60 [ 907.223597] ? cgw_remove_all_jobs+0x7f0/0x7f0 [ 907.228246] mutex_lock_nested+0x16/0x20 [ 907.232318] ? mutex_lock_nested+0x16/0x20 [ 907.236607] rtnl_lock+0x17/0x20 [ 907.240027] cangw_pernet_exit+0x12/0x30 [ 907.244081] ops_exit_list.isra.5+0xb0/0x160 [ 907.249212] setup_net+0x501/0x8d0 [ 907.252755] ? copy_net_ns+0x261/0x4a0 [ 907.256696] ? ops_init+0x560/0x560 [ 907.260340] ? lock_release+0xa10/0xa10 [ 907.264332] ? perf_trace_sched_process_exec+0x860/0x860 [ 907.269843] ? rcu_pm_notify+0xc0/0xc0 [ 907.273748] ? down_read_killable+0x90/0x150 [ 907.278229] ? copy_net_ns+0x28c/0x4a0 [ 907.282123] ? down_write+0x130/0x130 [ 907.285916] copy_net_ns+0x2b1/0x4a0 [ 907.289681] ? net_drop_ns+0x30/0x30 [ 907.293407] ? do_mount+0x1ff0/0x1ff0 [ 907.297257] ? kmem_cache_alloc+0x33a/0x730 [ 907.301589] ? rcu_softirq_qs+0x20/0x20 [ 907.305555] create_new_namespaces+0x6ad/0x900 [ 907.310197] ? sys_ni_syscall+0x20/0x20 [ 907.314185] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 907.319797] ? ns_capable_common+0x13f/0x170 [ 907.324221] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 907.329216] ksys_unshare+0x79c/0x10b0 [ 907.333109] ? posix_ktime_get_ts+0x15/0x20 [ 907.337484] ? walk_process_tree+0x440/0x440 [ 907.341924] ? _copy_to_user+0xc8/0x110 [ 907.345892] ? put_timespec64+0x10f/0x1b0 [ 907.350091] ? nsecs_to_jiffies+0x30/0x30 [ 907.354248] ? do_syscall_64+0x9a/0x820 [ 907.358284] ? do_syscall_64+0x9a/0x820 [ 907.362284] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 907.366919] ? trace_hardirqs_on+0xbd/0x310 [ 907.371255] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 907.377448] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 907.382831] ? trace_hardirqs_off_caller+0x300/0x300 [ 907.388022] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 907.393571] __x64_sys_unshare+0x31/0x40 [ 907.397682] do_syscall_64+0x1b9/0x820 [ 907.401576] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 907.406993] ? syscall_return_slowpath+0x5e0/0x5e0 [ 907.411929] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 907.416828] ? trace_hardirqs_on_caller+0x310/0x310 [ 907.421860] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 907.426945] ? prepare_exit_to_usermode+0x291/0x3b0 [ 907.431977] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 907.436902] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 907.442114] RIP: 0033:0x457569 [ 907.445297] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 907.464286] RSP: 002b:00007fe8550f0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 907.472057] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 907.479381] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 907.486686] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 907.493944] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe8550f16d4 [ 907.501272] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 907.509081] INFO: task syz-executor4:7337 blocked for more than 140 seconds. [ 907.516332] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 907.522127] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 907.530139] syz-executor4 D23360 7337 5732 0x80000004 [ 907.535787] Call Trace: [ 907.538452] __schedule+0x8cf/0x21d0 [ 907.542183] ? __sched_text_start+0x8/0x8 [ 907.546406] ? zap_class+0x640/0x640 [ 907.550135] ? zap_class+0x640/0x640 [ 907.553843] ? check_preemption_disabled+0x48/0x280 [ 907.558923] ? zap_class+0x640/0x640 [ 907.562646] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 907.567719] ? kasan_check_read+0x11/0x20 [ 907.571882] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 907.577212] ? find_held_lock+0x36/0x1c0 [ 907.581283] schedule+0xfe/0x460 [ 907.584655] ? __mutex_lock+0xafa/0x16f0 [ 907.588780] ? __schedule+0x21d0/0x21d0 [ 907.592771] ? kasan_check_read+0x11/0x20 [ 907.596981] ? do_raw_spin_unlock+0xa7/0x330 [ 907.601395] ? do_raw_spin_trylock+0x270/0x270 [ 907.605970] ? ww_mutex_lock.part.8+0xf0/0xf0 [ 907.610524] ? mutex_destroy+0x200/0x200 [ 907.614599] schedule_preempt_disabled+0x13/0x20 [ 907.619414] __mutex_lock+0xaff/0x16f0 [ 907.623312] ? rtnl_lock+0x17/0x20 [ 907.626911] ? ksys_unshare+0x79c/0x10b0 [ 907.630979] ? mutex_trylock+0x2b0/0x2b0 [ 907.635047] ? trace_hardirqs_on+0x310/0x310 [ 907.640179] ? pde_free+0xb1/0x100 [ 907.643718] ? rcu_read_lock_sched_held+0x14f/0x180 [ 907.648809] ? kfree+0x11e/0x230 [ 907.652180] ? kfree+0x11e/0x230 [ 907.655536] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 907.660174] ? trace_hardirqs_on+0xbd/0x310 [ 907.664505] ? trace_hardirqs_off_caller+0x300/0x300 [ 907.669680] ? __kasan_slab_free+0x119/0x150 [ 907.674103] ? cache_destroy_net+0x39/0x50 [ 907.678393] ? cache_destroy_net+0x39/0x50 [ 907.682645] ? rsc_cache_destroy_net+0x266/0x3c0 [ 907.687457] ? cache_destroy_net+0x39/0x50 [ 907.691713] ? gss_svc_shutdown_net+0x274/0x3d0 [ 907.696438] ? gss_svc_init_net+0xc60/0xc60 [ 907.700772] ? cgw_remove_all_jobs+0x7f0/0x7f0 [ 907.705361] mutex_lock_nested+0x16/0x20 [ 907.709471] ? mutex_lock_nested+0x16/0x20 [ 907.713723] rtnl_lock+0x17/0x20 [ 907.717146] cangw_pernet_exit+0x12/0x30 [ 907.721214] ops_exit_list.isra.5+0xb0/0x160 [ 907.725612] setup_net+0x501/0x8d0 [ 907.729200] ? copy_net_ns+0x261/0x4a0 [ 907.733099] ? ops_init+0x560/0x560 [ 907.736789] ? lock_release+0xa10/0xa10 [ 907.740776] ? perf_trace_sched_process_exec+0x860/0x860 [ 907.746281] ? rcu_pm_notify+0xc0/0xc0 [ 907.750203] ? down_read_killable+0x90/0x150 [ 907.754597] ? copy_net_ns+0x28c/0x4a0 [ 907.758550] ? down_write+0x130/0x130 [ 907.762374] copy_net_ns+0x2b1/0x4a0 [ 907.766077] ? net_drop_ns+0x30/0x30 [ 907.770451] ? do_mount+0x1ff0/0x1ff0 [ 907.774252] ? kmem_cache_alloc+0x33a/0x730 [ 907.778621] ? rcu_softirq_qs+0x20/0x20 [ 907.782626] create_new_namespaces+0x6ad/0x900 [ 907.787266] ? sys_ni_syscall+0x20/0x20 [ 907.791248] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 907.796862] ? ns_capable_common+0x13f/0x170 [ 907.801278] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 907.806341] ksys_unshare+0x79c/0x10b0 [ 907.810236] ? posix_ktime_get_ts+0x15/0x20 [ 907.814568] ? walk_process_tree+0x440/0x440 [ 907.819044] ? _copy_to_user+0xc8/0x110 [ 907.823038] ? put_timespec64+0x10f/0x1b0 [ 907.827236] ? nsecs_to_jiffies+0x30/0x30 [ 907.831393] ? do_syscall_64+0x9a/0x820 [ 907.835369] ? do_syscall_64+0x9a/0x820 [ 907.839396] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 907.843989] ? trace_hardirqs_on+0xbd/0x310 [ 907.848360] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 907.853908] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 907.859345] ? trace_hardirqs_off_caller+0x300/0x300 [ 907.864455] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 907.870051] __x64_sys_unshare+0x31/0x40 [ 907.874129] do_syscall_64+0x1b9/0x820 [ 907.878085] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 907.883456] ? syscall_return_slowpath+0x5e0/0x5e0 [ 907.888542] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 907.893396] ? trace_hardirqs_on_caller+0x310/0x310 [ 907.899148] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 907.904162] ? prepare_exit_to_usermode+0x291/0x3b0 [ 907.909233] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 907.914090] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 907.919323] RIP: 0033:0x457569 [ 907.922526] Code: 44 0f 6f 5e 60 f3 44 0f 6f 66 70 4c 31 df 48 01 de c5 fe 6f 66 e0 4c 29 de 4c 29 db 48 81 fb 00 00 10 00 77 7b 48 81 eb 80 00 <00> 00 c5 fe 6f 46 e0 c5 fe 6f 4e c0 c5 fe 6f 56 a0 c5 fe 6f 5e 80 [ 907.941474] RSP: 002b:00007fe191da4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 907.949222] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 907.956559] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 907.963843] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 907.971256] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe191da56d4 [ 907.978597] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 907.985901] INFO: task syz-executor2:7343 blocked for more than 140 seconds. [ 907.993129] Not tainted 4.20.0-rc1-next-20181105+ #105 [ 907.998959] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 908.006971] syz-executor2 D22496 7343 5728 0x80000004 [ 908.012617] Call Trace: [ 908.015200] __schedule+0x8cf/0x21d0 [ 908.018969] ? __sched_text_start+0x8/0x8 [ 908.023139] ? try_to_wake_up+0x11c/0x1490 [ 908.028048] ? zap_class+0x640/0x640 [ 908.031763] ? zap_class+0x640/0x640 [ 908.035463] ? mark_held_locks+0x130/0x130 [ 908.039749] ? zap_class+0x640/0x640 [ 908.043472] ? print_usage_bug+0xc0/0xc0 [ 908.047796] ? find_held_lock+0x36/0x1c0 [ 908.051872] ? find_held_lock+0x36/0x1c0 [ 908.055927] schedule+0xfe/0x460 [ 908.059339] ? __mutex_lock+0xafa/0x16f0 [ 908.063407] ? __schedule+0x21d0/0x21d0 [ 908.067439] ? kasan_check_read+0x11/0x20 [ 908.071600] ? do_raw_spin_unlock+0xa7/0x330 [ 908.076007] ? do_raw_spin_trylock+0x270/0x270 [ 908.080641] ? ww_mutex_lock.part.8+0xf0/0xf0 [ 908.085142] ? mutex_destroy+0x200/0x200 [ 908.089260] schedule_preempt_disabled+0x13/0x20 [ 908.094027] __mutex_lock+0xaff/0x16f0 [ 908.097962] ? rtnl_lock+0x17/0x20 [ 908.101535] ? mutex_trylock+0x2b0/0x2b0 [ 908.105588] ? is_bpf_text_address+0xac/0x170 [ 908.110131] ? lock_downgrade+0x900/0x900 [ 908.114287] ? check_preemption_disabled+0x48/0x280 [ 908.119357] ? rcu_softirq_qs+0x20/0x20 [ 908.123363] ? rcu_softirq_qs+0x20/0x20 [ 908.127467] ? unwind_dump+0x190/0x190 [ 908.131388] ? zap_class+0x640/0x640 [ 908.135094] ? is_bpf_text_address+0xd3/0x170 [ 908.139635] ? kernel_text_address+0x79/0xf0 [ 908.144076] ? find_held_lock+0x36/0x1c0 [ 908.148212] ? ip_tunnel_init_net+0x21e/0xac0 [ 908.152744] ? lock_downgrade+0x900/0x900 [ 908.157591] ? check_preemption_disabled+0x48/0x280 [ 908.162628] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 908.167622] ? kasan_check_read+0x11/0x20 [ 908.171778] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 908.177102] ? rcu_softirq_qs+0x20/0x20 [ 908.181130] mutex_lock_nested+0x16/0x20 [ 908.185184] ? memcpy+0x45/0x50 [ 908.188533] ? mutex_lock_nested+0x16/0x20 [ 908.192777] rtnl_lock+0x17/0x20 [ 908.196204] ip_tunnel_init_net+0x3e2/0xac0 [ 908.200543] ? ip_tunnel_ioctl+0xd50/0xd50 [ 908.204772] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 908.210670] ? check_preemption_disabled+0x48/0x280 [ 908.215709] vti_init_net+0x84/0x480 [ 908.219467] ? vti_init_net+0x84/0x480 [ 908.223386] ? vti_tunnel_init+0x300/0x300 [ 908.227675] ? vti_tunnel_init+0x300/0x300 [ 908.231932] ops_init+0x101/0x560 [ 908.235376] ? net_alloc_generic+0x70/0x70 [ 908.239669] setup_net+0x362/0x8d0 [ 908.243217] ? copy_net_ns+0x28c/0x4a0 [ 908.247159] ? ops_init+0x560/0x560 [ 908.250795] ? lock_release+0xa10/0xa10 [ 908.254763] ? perf_trace_sched_process_exec+0x860/0x860 [ 908.260269] ? rcu_pm_notify+0xc0/0xc0 [ 908.264174] ? down_read_killable+0x90/0x150 [ 908.268628] ? copy_net_ns+0x28c/0x4a0 [ 908.272523] ? down_write+0x130/0x130 [ 908.276381] copy_net_ns+0x2b1/0x4a0 [ 908.280108] ? net_drop_ns+0x30/0x30 [ 908.283816] ? do_mount+0x1ff0/0x1ff0 [ 908.288290] ? kmem_cache_alloc+0x33a/0x730 [ 908.292610] ? rcu_softirq_qs+0x20/0x20 [ 908.296641] create_new_namespaces+0x6ad/0x900 [ 908.301245] ? sys_ni_syscall+0x20/0x20 [ 908.305359] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 908.310947] ? ns_capable_common+0x13f/0x170 [ 908.315372] unshare_nsproxy_namespaces+0xc3/0x1f0 [ 908.320355] ksys_unshare+0x79c/0x10b0 [ 908.324254] ? posix_ktime_get_ts+0x15/0x20 [ 908.328642] ? walk_process_tree+0x440/0x440 [ 908.333066] ? _copy_to_user+0xc8/0x110 [ 908.337107] ? put_timespec64+0x10f/0x1b0 [ 908.341274] ? nsecs_to_jiffies+0x30/0x30 [ 908.345413] ? do_syscall_64+0x9a/0x820 [ 908.349435] ? do_syscall_64+0x9a/0x820 [ 908.353417] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 908.358051] ? trace_hardirqs_on+0xbd/0x310 [ 908.362401] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 908.367997] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 908.373392] ? trace_hardirqs_off_caller+0x300/0x300 [ 908.378583] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 908.384133] __x64_sys_unshare+0x31/0x40 [ 908.388250] do_syscall_64+0x1b9/0x820 [ 908.392153] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 908.397575] ? syscall_return_slowpath+0x5e0/0x5e0 [ 908.402520] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 908.407417] ? trace_hardirqs_on_caller+0x310/0x310 [ 908.412449] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 908.418147] ? prepare_exit_to_usermode+0x291/0x3b0 [ 908.423164] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 908.428068] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 908.433272] RIP: 0033:0x457569 [ 908.436825] Code: Bad RIP value. [ 908.440198] RSP: 002b:00007f6ae1330c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 [ 908.447972] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000457569 [ 908.455247] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 [ 908.462584] RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 [ 908.469888] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6ae13316d4 [ 908.477254] R13: 00000000004c5199 R14: 00000000004d8998 R15: 00000000ffffffff [ 908.484547] [ 908.484547] Showing all locks held in the system: [ 908.490935] 4 locks held by kworker/u4:2/32: [ 908.495358] #0: 00000000c29c7628 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0xb43/0x1c40 [ 908.504985] #1: 00000000f174895f (net_cleanup_work){+.+.}, at: process_one_work+0xb9a/0x1c40 [ 908.513721] #2: 000000006e017908 (pernet_ops_rwsem){++++}, at: cleanup_net+0x13f/0xb10 [ 908.521946] #3: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.529633] 1 lock held by khungtaskd/1007: [ 908.533941] #0: 0000000005469bfe (rcu_read_lock){....}, at: debug_show_all_locks+0xd0/0x424 [ 908.542618] 1 lock held by rsyslogd/5589: [ 908.547267] #0: 0000000004d1fe5b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1bb/0x200 [ 908.555248] 2 locks held by getty/5679: [ 908.559272] #0: 0000000085fea849 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.567563] #1: 00000000e0907768 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.576472] 2 locks held by getty/5680: [ 908.580447] #0: 00000000f8a0a173 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.588745] #1: 000000000df10877 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.597669] 2 locks held by getty/5681: [ 908.601626] #0: 000000001d832a30 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.609958] #1: 00000000a4966bc3 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.618881] 2 locks held by getty/5682: [ 908.622844] #0: 00000000093f6ad1 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.631138] #1: 00000000ab143362 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.640042] 2 locks held by getty/5683: [ 908.644023] #0: 000000007d4733d5 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.652313] #1: 0000000069baa170 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.661211] 2 locks held by getty/5684: [ 908.665169] #0: 00000000f22976c1 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.673466] #1: 000000005cbcfc1a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.682866] 2 locks held by getty/5685: [ 908.686879] #0: 0000000049755cc7 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x32/0x40 [ 908.695150] #1: 00000000b6011517 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x335/0x1e80 [ 908.704095] 3 locks held by kworker/0:1/5935: [ 908.708622] #0: 00000000bf03b0aa ((wq_completion)"%s"("ipv6_addrconf")){+.+.}, at: process_one_work+0xb43/0x1c40 [ 908.719080] #1: 000000000e0cb31e ((addr_chk_work).work){+.+.}, at: process_one_work+0xb9a/0x1c40 [ 908.728156] #2: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.735436] 2 locks held by syz-executor3/7314: [ 908.740141] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.748359] #1: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.755654] 2 locks held by syz-executor1/7326: [ 908.760391] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.768594] #1: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.775876] 1 lock held by syz-executor1/7327: [ 908.780505] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.788731] 1 lock held by syz-executor5/7341: [ 908.793308] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.801578] 2 locks held by syz-executor0/7332: [ 908.806781] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.814929] #1: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.822287] 2 locks held by syz-executor4/7337: [ 908.826990] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.835140] #1: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.842481] 2 locks held by syz-executor2/7343: [ 908.847252] #0: 000000006e017908 (pernet_ops_rwsem){++++}, at: copy_net_ns+0x28c/0x4a0 [ 908.855401] #1: 00000000871730e0 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 908.862757] [ 908.864388] ============================================= [ 908.864388] [ 908.871450] NMI backtrace for cpu 1 [ 908.875100] CPU: 1 PID: 1007 Comm: khungtaskd Not tainted 4.20.0-rc1-next-20181105+ #105 [ 908.883312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 908.892654] Call Trace: [ 908.895235] dump_stack+0x244/0x39d [ 908.898861] ? dump_stack_print_info.cold.1+0x20/0x20 [ 908.904046] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 908.909577] nmi_cpu_backtrace.cold.2+0x5c/0xa1 [ 908.914237] ? lapic_can_unplug_cpu.cold.27+0x3f/0x3f [ 908.919418] nmi_trigger_cpumask_backtrace+0x1e8/0x22a [ 908.924689] arch_trigger_cpumask_backtrace+0x14/0x20 [ 908.929887] watchdog+0xb4c/0x1060 [ 908.933423] ? hungtask_pm_notify+0xb0/0xb0 [ 908.937732] ? __kthread_parkme+0xce/0x1a0 [ 908.941965] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 908.947058] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 908.952151] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 908.956723] ? trace_hardirqs_on+0xbd/0x310 [ 908.961042] ? kasan_check_read+0x11/0x20 [ 908.965175] ? __kthread_parkme+0xce/0x1a0 [ 908.969400] ? trace_hardirqs_off_caller+0x300/0x300 [ 908.974491] ? trace_hardirqs_off_caller+0x300/0x300 [ 908.979603] ? lockdep_init_map+0x9/0x10 [ 908.983654] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 908.988764] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 908.994292] ? __kthread_parkme+0xfb/0x1a0 [ 908.998532] ? hungtask_pm_notify+0xb0/0xb0 [ 909.002846] kthread+0x35a/0x440 [ 909.006209] ? kthread_stop+0x8f0/0x8f0 [ 909.010200] ret_from_fork+0x3a/0x50 [ 909.014073] Sending NMI from CPU 1 to CPUs 0: [ 909.020429] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.565 msecs [ 909.020643] NMI backtrace for cpu 0 [ 909.020651] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc1-next-20181105+ #105 [ 909.020659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 909.020664] RIP: 0010:lockdep_hardirqs_off+0xb/0x2b0 [ 909.020679] Code: e9 69 fe ff ff e8 85 05 61 00 e9 42 ff ff ff e8 7b 05 61 00 eb 9d 66 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 <48> 89 e5 41 55 49 89 fd 48 c7 c7 b4 44 15 8a 48 89 fa 41 54 48 c1 [ 909.020684] RSP: 0018:ffff8801dae072a8 EFLAGS: 00000006 [ 909.020694] RAX: dffffc0000000000 RBX: 1ffff1003b5c0e5a RCX: ffffffff818595e5 [ 909.020701] RDX: 0000000000000100 RSI: ffffffff818595ef RDI: ffffffff87d08fe4 [ 909.020707] RBP: ffff8801dae07358 R08: ffffffff89476ec0 R09: ffffed003b5c59a9 [ 909.020714] R10: ffffed003b5c59a9 R11: ffff8801dae2cd4b R12: 0000000000000000 [ 909.020721] R13: 0000000000000000 R14: ffffffff87d08fe4 R15: ffff8801dae079b0 [ 909.020728] FS: 0000000000000000(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 909.020734] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 909.020749] CR2: ffffffffff600400 CR3: 00000001bbe41000 CR4: 00000000001406f0 [ 909.020756] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 909.020762] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 909.020766] Call Trace: [ 909.020769] [ 909.020774] ? trace_hardirqs_off+0xb8/0x310 [ 909.020779] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 909.020784] ? update_blocked_averages+0x156/0x1e00 [ 909.020789] ? trace_hardirqs_on+0x310/0x310 [ 909.020794] _raw_spin_lock_irqsave+0x74/0xd0 [ 909.020799] update_blocked_averages+0x156/0x1e00 [ 909.020804] ? find_busiest_group+0xf9/0x2060 [ 909.020809] ? print_usage_bug+0xc0/0xc0 [ 909.020813] ? update_sd_lb_stats+0x3230/0x3230 [ 909.020818] ? set_next_entity+0xc60/0xc60 [ 909.020823] ? __lock_acquire+0x62f/0x4c20 [ 909.020827] ? zap_class+0x640/0x640 [ 909.020832] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 909.020837] ? find_next_and_bit+0x183/0x1e0 [ 909.020843] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 909.020847] ? find_first_bit+0xbe/0x100 [ 909.020852] ? load_balance+0x687/0x3990 [ 909.020856] ? find_held_lock+0x36/0x1c0 [ 909.020861] ? print_usage_bug+0xc0/0xc0 [ 909.020866] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 909.020871] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 909.020876] ? __lock_acquire+0x62f/0x4c20 [ 909.020880] ? lock_pin_lock+0x350/0x350 [ 909.020885] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 909.020890] ? find_next_bit+0x104/0x130 [ 909.020894] _nohz_idle_balance+0x5ba/0x7a0 [ 909.020899] ? rebalance_domains+0xdc0/0xdc0 [ 909.020904] ? find_held_lock+0x36/0x1c0 [ 909.020908] ? rebalance_domains+0x358/0xdc0 [ 909.020913] ? check_preemption_disabled+0x48/0x280 [ 909.020918] ? kasan_check_read+0x11/0x20 [ 909.020923] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 909.020927] ? rcu_softirq_qs+0x20/0x20 [ 909.020931] ? zap_class+0x640/0x640 [ 909.020937] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.020942] ? check_preemption_disabled+0x48/0x280 [ 909.020947] run_rebalance_domains+0x2ec/0x500 [ 909.020952] ? _nohz_idle_balance+0x7a0/0x7a0 [ 909.020957] ? rcu_lockdep_current_cpu_online+0x1a4/0x210 [ 909.020961] ? rcu_pm_notify+0xc0/0xc0 [ 909.020966] __do_softirq+0x308/0xb7e [ 909.020971] ? __irqentry_text_end+0x1f9688/0x1f9688 [ 909.020976] ? pvclock_read_flags+0x160/0x160 [ 909.020981] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.020986] ? check_preemption_disabled+0x48/0x280 [ 909.020991] ? kvm_clock_read+0x18/0x30 [ 909.020995] ? kvm_sched_clock_read+0x9/0x20 [ 909.021001] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021006] ? check_preemption_disabled+0x48/0x280 [ 909.021010] irq_exit+0x17f/0x1c0 [ 909.021014] scheduler_ipi+0x55a/0xad0 [ 909.021018] ? kasan_check_read+0x11/0x20 [ 909.021023] ? migration_cpu_stop+0x630/0x630 [ 909.021028] ? rcu_dynticks_eqs_enter+0x4f/0x80 [ 909.021032] ? rcu_irq_exit+0x238/0x390 [ 909.021037] ? rcu_nmi_exit+0x290/0x290 [ 909.021041] ? kvm_clock_read+0x18/0x30 [ 909.021046] ? kvm_sched_clock_read+0x9/0x20 [ 909.021050] ? task_prio+0x50/0x50 [ 909.021055] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021061] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021066] ? check_preemption_disabled+0x48/0x280 [ 909.021071] smp_reschedule_interrupt+0x109/0x650 [ 909.021076] ? smp_thermal_interrupt+0x850/0x850 [ 909.021080] ? interrupt_entry+0xb5/0xc0 [ 909.021085] ? trace_hardirqs_off_caller+0xbb/0x300 [ 909.021090] ? trace_hardirqs_off_caller+0xbb/0x300 [ 909.021095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 909.021100] ? trace_hardirqs_on_caller+0x310/0x310 [ 909.021105] ? trace_hardirqs_on_caller+0x310/0x310 [ 909.021110] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 909.021115] reschedule_interrupt+0xf/0x20 [ 909.021118] [ 909.021123] RIP: 0010:native_safe_halt+0x6/0x10 [ 909.021137] Code: 45 d8 e8 7d 49 f2 f9 48 8b 45 d8 e9 ca fe ff ff 48 89 df e8 6c 49 f2 f9 eb 82 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 fb f4 <5d> c3 0f 1f 84 00 00 00 00 00 55 48 89 e5 f4 5d c3 90 90 90 90 90 [ 909.021142] RSP: 0018:ffffffff89407c10 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff02 [ 909.021154] RAX: dffffc0000000000 RBX: 1ffffffff1280f86 RCX: 0000000000000000 [ 909.021160] RDX: 1ffffffff12a3f79 RSI: 0000000000000001 RDI: ffffffff8951fbc8 [ 909.021167] RBP: ffffffff89407c10 R08: ffffffff89476ec0 R09: 0000000000000000 [ 909.021174] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89407cd0 [ 909.021180] R13: ffffffff8a1512a0 R14: 0000000000000000 R15: 0000000000000000 [ 909.021185] default_idle+0xbf/0x490 [ 909.021189] ? rcu_dynticks_eqs_enter+0x4f/0x80 [ 909.021193] ? __sched_text_end+0x1/0x1 [ 909.021198] ? rcu_idle_enter+0x39a/0x530 [ 909.021203] ? rcu_eqs_special_set+0x1c0/0x1c0 [ 909.021208] ? tsc_verify_tsc_adjust+0x137/0x450 [ 909.021213] ? trace_hardirqs_off_caller+0x300/0x300 [ 909.021218] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021224] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021229] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021233] arch_cpu_idle+0x10/0x20 [ 909.021238] default_idle_call+0x6d/0x90 [ 909.021242] do_idle+0x49b/0x5c0 [ 909.021247] ? trace_hardirqs_off_caller+0x300/0x300 [ 909.021252] ? arch_cpu_idle_exit+0x70/0x70 [ 909.021257] ? check_preemption_disabled+0x48/0x280 [ 909.021261] cpu_startup_entry+0x18/0x20 [ 909.021265] rest_init+0x243/0x372 [ 909.021271] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021275] arch_call_rest_init+0xe/0x1b [ 909.021280] start_kernel+0x9f0/0xa2b [ 909.021285] ? mem_encrypt_init+0xb/0xb [ 909.021290] ? early_idt_handler_common+0x3b/0x60 [ 909.021295] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 909.021299] ? x86_family+0x3e/0x50 [ 909.021305] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 909.021309] x86_64_start_reservations+0x2e/0x30 [ 909.021314] x86_64_start_kernel+0x76/0x79 [ 909.021319] secondary_startup_64+0xa4/0xb0 [ 909.022199] Kernel panic - not syncing: hung_task: blocked tasks [ 909.688962] CPU: 1 PID: 1007 Comm: khungtaskd Not tainted 4.20.0-rc1-next-20181105+ #105 [ 909.697188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 909.706527] Call Trace: [ 909.709119] dump_stack+0x244/0x39d [ 909.712747] ? dump_stack_print_info.cold.1+0x20/0x20 [ 909.717934] panic+0x2ad/0x55c [ 909.721113] ? add_taint.cold.5+0x16/0x16 [ 909.725264] ? nmi_trigger_cpumask_backtrace+0x1c8/0x22a [ 909.730700] ? nmi_trigger_cpumask_backtrace+0x1f9/0x22a [ 909.736146] ? nmi_trigger_cpumask_backtrace+0x1d1/0x22a [ 909.741595] ? nmi_trigger_cpumask_backtrace+0x1c8/0x22a [ 909.747040] watchdog+0xb5d/0x1060 [ 909.750575] ? hungtask_pm_notify+0xb0/0xb0 [ 909.754888] ? __kthread_parkme+0xce/0x1a0 [ 909.759125] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 909.764230] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 909.769324] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 909.773900] ? trace_hardirqs_on+0xbd/0x310 [ 909.778226] ? kasan_check_read+0x11/0x20 [ 909.782363] ? __kthread_parkme+0xce/0x1a0 [ 909.786584] ? trace_hardirqs_off_caller+0x300/0x300 [ 909.791672] ? trace_hardirqs_off_caller+0x300/0x300 [ 909.796766] ? lockdep_init_map+0x9/0x10 [ 909.800817] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 909.805922] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 909.811451] ? __kthread_parkme+0xfb/0x1a0 [ 909.815674] ? hungtask_pm_notify+0xb0/0xb0 [ 909.819982] kthread+0x35a/0x440 [ 909.823338] ? kthread_stop+0x8f0/0x8f0 [ 909.827300] ret_from_fork+0x3a/0x50 [ 909.832170] Kernel Offset: disabled [ 909.835801] Rebooting in 86400 seconds..