[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 47.352159][ T25] audit: type=1800 audit(1575378554.969:25): pid=8178 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 47.371275][ T25] audit: type=1800 audit(1575378554.969:26): pid=8178 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.391189][ T25] audit: type=1800 audit(1575378554.969:27): pid=8178 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. 2019/12/03 13:09:25 fuzzer started 2019/12/03 13:09:27 dialing manager at 10.128.0.26:45711 2019/12/03 13:09:27 syscalls: 2689 2019/12/03 13:09:27 code coverage: enabled 2019/12/03 13:09:27 comparison tracing: enabled 2019/12/03 13:09:27 extra coverage: extra coverage is not supported by the kernel 2019/12/03 13:09:27 setuid sandbox: enabled 2019/12/03 13:09:27 namespace sandbox: enabled 2019/12/03 13:09:27 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 13:09:27 fault injection: enabled 2019/12/03 13:09:27 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 13:09:27 net packet injection: enabled 2019/12/03 13:09:27 net device setup: enabled 2019/12/03 13:09:27 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 13:09:27 devlink PCI setup: PCI device 0000:00:10.0 is not available 13:09:28 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000000)=[{}, {}, {}, {}, {}, {}, {}, {}], 0x1555581f, 0x0, &(0x7f0000000640), 0x8) 13:09:28 executing program 1: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x6, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x61, 0x10, 0x8}, [@ldst={0x5, 0x5, 0xe009}]}, &(0x7f0000003ff6)='G\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000000), 0x3}, 0x48) syzkaller login: [ 60.927148][ T8343] IPVS: ftp: loaded support on port[0] = 21 [ 61.076424][ T8343] chnl_net:caif_netlink_parms(): no params data found [ 61.132830][ T8346] IPVS: ftp: loaded support on port[0] = 21 [ 61.144314][ T8343] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.157644][ T8343] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.166950][ T8343] device bridge_slave_0 entered promiscuous mode [ 61.186032][ T8343] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.194148][ T8343] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.201902][ T8343] device bridge_slave_1 entered promiscuous mode 13:09:28 executing program 2: syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) ioctl$sock_bt_hidp_HIDPGETCONNLIST(0xffffffffffffffff, 0x800448d2, 0x0) setsockopt$inet_sctp6_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000000080)=@assoc_value, 0x8) ioctl$sock_bt_hidp_HIDPGETCONNLIST(0xffffffffffffffff, 0x800448d2, &(0x7f0000000040)={0x0, 0x0}) setsockopt$inet_sctp6_SCTP_PEER_ADDR_PARAMS(0xffffffffffffffff, 0x84, 0x9, &(0x7f0000001180)={0x0, @in6={{0xa, 0x4e20, 0x1ff, @rand_addr="15e94783882b4e19344aa5b9f71ec8ee", 0x357}}, 0x4, 0x5, 0x678e, 0x2fcda016}, 0x98) connect$l2tp(0xffffffffffffffff, 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) seccomp$SECCOMP_GET_ACTION_AVAIL(0x2, 0x0, 0x0) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000080)) clock_gettime(0x0, &(0x7f0000000100)={0x0, 0x0}) clock_nanosleep(0x0, 0x0, &(0x7f0000000140)={0x0, r0+30000000}, &(0x7f00000001c0)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x989680}, {0x0, 0x9}}, 0x0) timer_create(0x0, &(0x7f0000000000)={0x0, 0x14, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000040)=0x0) timer_settime(r1, 0x0, &(0x7f0000000180)={{0x0, 0x1c9c380}, {0x0, 0x1c9c380}}, 0x0) [ 61.227142][ T8343] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.243366][ T8343] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.269566][ T8343] team0: Port device team_slave_0 added [ 61.280434][ T8343] team0: Port device team_slave_1 added 13:09:29 executing program 3: r0 = socket(0x11, 0xa, 0x0) getsockopt$SO_BINDTODEVICE(r0, 0x1, 0x43, &(0x7f0000000000), 0x20a154cc) [ 61.474791][ T8343] device hsr_slave_0 entered promiscuous mode [ 61.520198][ T8343] device hsr_slave_1 entered promiscuous mode 13:09:29 executing program 4: sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)=@l2={0x1f, 0xffffdd86}, 0x80, 0x0, 0x0, 0x0, 0xfffffffffffffd50}, 0x0) r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$kcm(0x11, 0x3, 0x0) sendmsg$kcm(r1, &(0x7f0000000000)={&(0x7f0000000040)=@nfc={0x27, 0x3}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000100)="0500400023002f0000068908ac14140de00000093c31b47d0510c147885b6e765e30349bbfc775c799c86558", 0x2c}], 0x1, 0x0, 0x0, 0x50}, 0x0) [ 61.620962][ T8349] IPVS: ftp: loaded support on port[0] = 21 [ 61.639253][ T8346] chnl_net:caif_netlink_parms(): no params data found [ 61.659279][ T8351] IPVS: ftp: loaded support on port[0] = 21 [ 61.700997][ T8343] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.756273][ T8343] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.835353][ T8343] netdevsim netdevsim0 netdevsim2: renamed from eth2 13:09:29 executing program 5: bpf$BPF_BTF_LOAD(0x12, &(0x7f0000000280)={&(0x7f0000000000)=ANY=[@ANYBLOB="9feb0100180000000000000034000000340000000600000004000000000000070000000000000000000000010000ffff0800000000000000010000850200000004000000020000000000000100000000da003ed9aed616aa94f92417f9e857d1d45b54da920bfbed77cff360afa7996df6a1309418eec5f97cebdc661626027c1bb39852ffbb5b1884c5"], &(0x7f0000000340)=""/142, 0x52, 0x8e, 0x8}, 0x20) [ 61.913215][ T8343] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.978130][ T8353] IPVS: ftp: loaded support on port[0] = 21 [ 61.996741][ T8346] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.005842][ T8346] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.014028][ T8346] device bridge_slave_0 entered promiscuous mode [ 62.024673][ T8346] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.032214][ T8346] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.039761][ T8346] device bridge_slave_1 entered promiscuous mode [ 62.101837][ T8355] IPVS: ftp: loaded support on port[0] = 21 [ 62.110560][ T8346] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.141958][ T8346] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.199591][ T8349] chnl_net:caif_netlink_parms(): no params data found [ 62.223296][ T8346] team0: Port device team_slave_0 added [ 62.243481][ T8346] team0: Port device team_slave_1 added [ 62.255200][ T8349] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.263614][ T8349] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.271754][ T8349] device bridge_slave_0 entered promiscuous mode [ 62.321447][ T8349] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.328547][ T8349] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.337106][ T8349] device bridge_slave_1 entered promiscuous mode [ 62.361709][ T8351] chnl_net:caif_netlink_parms(): no params data found [ 62.422743][ T8349] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.436037][ T8349] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.492657][ T8346] device hsr_slave_0 entered promiscuous mode [ 62.530571][ T8346] device hsr_slave_1 entered promiscuous mode [ 62.620305][ T8346] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.655169][ T8349] team0: Port device team_slave_0 added [ 62.661472][ T8351] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.668526][ T8351] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.677580][ T8351] device bridge_slave_0 entered promiscuous mode [ 62.687061][ T8351] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.702556][ T8351] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.710602][ T8351] device bridge_slave_1 entered promiscuous mode [ 62.723879][ T8353] chnl_net:caif_netlink_parms(): no params data found [ 62.735225][ T8349] team0: Port device team_slave_1 added [ 62.758490][ T8355] chnl_net:caif_netlink_parms(): no params data found [ 62.783068][ T8351] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.801804][ T8351] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.829475][ T8346] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.911338][ T8346] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.981821][ T8349] device hsr_slave_0 entered promiscuous mode [ 63.020437][ T8349] device hsr_slave_1 entered promiscuous mode [ 63.060384][ T8349] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.077518][ T8346] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 63.121896][ T8353] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.128987][ T8353] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.137318][ T8353] device bridge_slave_0 entered promiscuous mode [ 63.149310][ T8353] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.156495][ T8353] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.165220][ T8353] device bridge_slave_1 entered promiscuous mode [ 63.175438][ T8351] team0: Port device team_slave_0 added [ 63.189239][ T8346] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 63.239190][ T8355] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.247192][ T8355] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.255573][ T8355] device bridge_slave_0 entered promiscuous mode [ 63.264131][ T8355] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.271349][ T8355] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.279082][ T8355] device bridge_slave_1 entered promiscuous mode [ 63.288599][ T8351] team0: Port device team_slave_1 added [ 63.324061][ T8353] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.346139][ T8353] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.364430][ T8343] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.378092][ T8355] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.389009][ T8349] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.435739][ T8349] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.531835][ T8351] device hsr_slave_0 entered promiscuous mode [ 63.590287][ T8351] device hsr_slave_1 entered promiscuous mode [ 63.630234][ T8351] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.639173][ T8355] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.659754][ T8355] team0: Port device team_slave_0 added [ 63.668457][ T8353] team0: Port device team_slave_0 added [ 63.674420][ T8349] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.742106][ T8349] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.803192][ T8355] team0: Port device team_slave_1 added [ 63.815648][ T8343] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.824379][ T8353] team0: Port device team_slave_1 added [ 63.845869][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.854550][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.882913][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.892866][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.902234][ T3956] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.909374][ T3956] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.918238][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.926934][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.936303][ T3956] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.943366][ T3956] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.951000][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.959787][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.042627][ T8353] device hsr_slave_0 entered promiscuous mode [ 64.090289][ T8353] device hsr_slave_1 entered promiscuous mode [ 64.130213][ T8353] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.191828][ T8355] device hsr_slave_0 entered promiscuous mode [ 64.230382][ T8355] device hsr_slave_1 entered promiscuous mode [ 64.282761][ T8355] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.304549][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.369626][ T8353] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 64.411653][ T8351] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 64.481949][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.490759][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.499121][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.507832][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.516213][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.525005][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.533451][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.551075][ T8343] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 64.565163][ T8343] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 64.574325][ T8353] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.622409][ T8351] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 64.672787][ T8351] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 64.715067][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 64.723860][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 64.737013][ T8353] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 64.784741][ T8351] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 64.831621][ T8355] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.873248][ T8355] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.921975][ T8355] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 64.972549][ T8353] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 65.032938][ T8346] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.047255][ T8349] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.054480][ T8355] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 65.155264][ T8349] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.179229][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.187182][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.195198][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.202861][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.211763][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.219356][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.231431][ T8356] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.240659][ T8356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.248941][ T8356] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.256038][ T8356] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.268721][ T8343] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.286665][ T8346] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.294207][ T8356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.321150][ T8356] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.329723][ T8356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.349704][ T8356] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.356956][ T8356] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.382229][ T8355] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.396242][ T8351] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.408972][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.417594][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.447836][ T8355] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.455542][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.483645][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 170.509795][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 170.516807][ C0] (detected by 0, t=10502 jiffies, g=6517, q=21) [ 170.523211][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954183-4294943680), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 170.536671][ C0] rcu_preempt R running task 29032 10 2 0x80004008 [ 170.544567][ C0] Call Trace: [ 170.547839][ C0] [ 170.550689][ C0] sched_show_task+0x40f/0x560 [ 170.555446][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 170.560810][ C0] update_process_times+0x12d/0x180 [ 170.565998][ C0] tick_sched_timer+0x263/0x420 [ 170.570839][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.576394][ C0] __hrtimer_run_queues+0x403/0x840 [ 170.581609][ C0] hrtimer_interrupt+0x38c/0xda0 [ 170.586557][ C0] ? debug_smp_processor_id+0x9/0x20 [ 170.591836][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 170.597370][ C0] apic_timer_interrupt+0xf/0x20 [ 170.602291][ C0] [ 170.605217][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 170.610927][ C0] Code: 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 ff e8 28 04 00 [ 170.631184][ C0] RSP: 0018:ffffc90000d0fc48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 170.639586][ C0] RAX: 1ffff110122b5eb1 RBX: ffff8880915af588 RCX: 0000000000000000 [ 170.647549][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002478e80 [ 170.655511][ C0] RBP: ffffc90000d0fc80 R08: dffffc0000000000 R09: fffffbfff120248a [ 170.663468][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880915af620 [ 170.671424][ C0] R13: dffffc0000000000 R14: 1ffff110122b5ec4 R15: ffff8880917cb9a8 [ 170.679405][ C0] ? free_thread_stack+0x12e/0x590 [ 170.684504][ C0] put_task_stack+0xa3/0x130 [ 170.689955][ C0] finish_task_switch+0x3f1/0x550 [ 170.694993][ C0] __schedule+0x9a8/0xcc0 [ 170.699319][ C0] schedule+0x181/0x210 [ 170.703460][ C0] schedule_timeout+0x14f/0x240 [ 170.708299][ C0] ? run_local_timers+0x120/0x120 [ 170.713311][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.718069][ C0] kthread+0x332/0x350 [ 170.722120][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.727217][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.731796][ C0] ret_from_fork+0x24/0x30 [ 170.736210][ C0] rcu: rcu_preempt kthread starved for 10524 jiffies! g6517 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 170.747303][ C0] rcu: RCU grace-period kthread stack dump: [ 170.753177][ C0] rcu_preempt R running task 29032 10 2 0x80004008 [ 170.761157][ C0] Call Trace: [ 170.764442][ C0] [ 170.767282][ C0] sched_show_task+0x40f/0x560 [ 170.772038][ C0] rcu_check_gp_kthread_starvation+0x170/0x1b0 [ 170.778203][ C0] rcu_sched_clock_irq+0x17d3/0x1ad0 [ 170.783491][ C0] update_process_times+0x12d/0x180 [ 170.788683][ C0] tick_sched_timer+0x263/0x420 [ 170.793531][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 170.799084][ C0] __hrtimer_run_queues+0x403/0x840 [ 170.804287][ C0] hrtimer_interrupt+0x38c/0xda0 [ 170.809225][ C0] ? debug_smp_processor_id+0x9/0x20 [ 170.814499][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 170.820028][ C0] apic_timer_interrupt+0xf/0x20 [ 170.824948][ C0] [ 170.827874][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 170.833578][ C0] Code: 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 ff e8 28 04 00 [ 170.853172][ C0] RSP: 0018:ffffc90000d0fc48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 170.861568][ C0] RAX: 1ffff110122b5eb1 RBX: ffff8880915af588 RCX: 0000000000000000 [ 170.869527][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002478e80 [ 170.877485][ C0] RBP: ffffc90000d0fc80 R08: dffffc0000000000 R09: fffffbfff120248a [ 170.886018][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880915af620 [ 170.894324][ C0] R13: dffffc0000000000 R14: 1ffff110122b5ec4 R15: ffff8880917cb9a8 [ 170.902307][ C0] ? free_thread_stack+0x12e/0x590 [ 170.907410][ C0] put_task_stack+0xa3/0x130 [ 170.911987][ C0] finish_task_switch+0x3f1/0x550 [ 170.917004][ C0] __schedule+0x9a8/0xcc0 [ 170.921333][ C0] schedule+0x181/0x210 [ 170.925481][ C0] schedule_timeout+0x14f/0x240 [ 170.930320][ C0] ? run_local_timers+0x120/0x120 [ 170.935440][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.940636][ C0] kthread+0x332/0x350 [ 170.944691][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.949788][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.954370][ C0] ret_from_fork+0x24/0x30