[ 40.341439][ T23] audit: type=1800 audit(1575391029.764:27): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.372986][ T23] audit: type=1800 audit(1575391029.764:28): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.991791][ T23] audit: type=1800 audit(1575391030.484:29): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 41.010931][ T23] audit: type=1800 audit(1575391030.494:30): pid=7857 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. 2019/12/03 16:37:21 fuzzer started 2019/12/03 16:37:22 dialing manager at 10.128.0.26:45711 2019/12/03 16:37:22 syscalls: 2689 2019/12/03 16:37:22 code coverage: enabled 2019/12/03 16:37:22 comparison tracing: enabled 2019/12/03 16:37:22 extra coverage: extra coverage is not supported by the kernel 2019/12/03 16:37:22 setuid sandbox: enabled 2019/12/03 16:37:22 namespace sandbox: enabled 2019/12/03 16:37:22 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 16:37:22 fault injection: enabled 2019/12/03 16:37:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 16:37:22 net packet injection: enabled 2019/12/03 16:37:22 net device setup: enabled 2019/12/03 16:37:22 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 16:37:22 devlink PCI setup: PCI device 0000:00:10.0 is not available 16:37:23 executing program 0: r0 = socket$can_raw(0x1d, 0x3, 0x1) setsockopt$CAN_RAW_ERR_FILTER(r0, 0x65, 0x2, &(0x7f0000000000)=0x77e3, 0x4) bind$can_raw(r0, &(0x7f0000000080), 0x10) setsockopt$CAN_RAW_ERR_FILTER(r0, 0x65, 0x2, &(0x7f0000000080)=0x8, 0x4) 16:37:23 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) io_setup(0x6, &(0x7f0000000000)=0x0) r2 = socket$inet6(0xa, 0x1, 0x0) io_submit(r1, 0x2, &(0x7f0000001900)=[&(0x7f0000000080)={0x0, 0x0, 0x0, 0x0, 0x0, r2, 0x0}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x8, 0x0, r0, &(0x7f00000000c0)="9f8366f42e14d0258d", 0x9}]) syzkaller login: [ 54.250352][ T8020] IPVS: ftp: loaded support on port[0] = 21 [ 54.395411][ T8020] chnl_net:caif_netlink_parms(): no params data found [ 54.396256][ T8023] IPVS: ftp: loaded support on port[0] = 21 [ 54.477202][ T8020] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.485757][ T8020] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.493848][ T8020] device bridge_slave_0 entered promiscuous mode 16:37:24 executing program 2: r0 = socket(0x11, 0x3, 0x0) ioctl$SIOCSIFMTU(r0, 0x8943, &(0x7f00000000c0)={'team0:&\x01\xb89\xeb,\xf9\x00]\x00'}) [ 54.531868][ T8020] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.540258][ T8020] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.549101][ T8020] device bridge_slave_1 entered promiscuous mode [ 54.582317][ T8023] chnl_net:caif_netlink_parms(): no params data found [ 54.596196][ T8020] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.618718][ T8020] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.661748][ T8023] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.669295][ T8023] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.678950][ T8023] device bridge_slave_0 entered promiscuous mode [ 54.689184][ T8020] team0: Port device team_slave_0 added [ 54.716146][ T8020] team0: Port device team_slave_1 added [ 54.721967][ T8023] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.731569][ T8023] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.739699][ T8023] device bridge_slave_1 entered promiscuous mode 16:37:24 executing program 3: sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000000)=ANY=[@ANYBLOB="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"], 0x28}}, 0x0) r0 = socket(0x10, 0x80002, 0x0) sendmsg(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000000)="240000001e0007041dfffd946f610500070000001f00000000000400080005", 0x1f}], 0x1}, 0x0) sendmmsg$alg(r0, &(0x7f0000000180), 0x572, 0x0) [ 54.815650][ T8020] device hsr_slave_0 entered promiscuous mode [ 54.865079][ T8020] device hsr_slave_1 entered promiscuous mode [ 54.911538][ T8023] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.940519][ T8026] IPVS: ftp: loaded support on port[0] = 21 [ 54.970837][ T8023] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.033284][ T8023] team0: Port device team_slave_0 added [ 55.041472][ T8020] netdevsim netdevsim0 netdevsim0: renamed from eth0 16:37:24 executing program 4: bpf$MAP_CREATE(0x0, &(0x7f0000000280)={0x14, 0x4, 0x4, 0x10000003}, 0x3c) [ 55.087867][ T8023] team0: Port device team_slave_1 added [ 55.112510][ T8020] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.174755][ T8020] netdevsim netdevsim0 netdevsim2: renamed from eth2 16:37:24 executing program 5: pkey_mprotect(&(0x7f00003e3000/0x2000)=nil, 0x2000, 0x0, 0xffffffffffffffff) 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, 0x0, 0xffffffffffffffff, 0x0) mmap(&(0x7f000005d000/0x400000)=nil, 0x400000, 0x0, 0x392d6ad36ec2c8b2, 0xffffffffffffffff, 0x0) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) madvise(&(0x7f0000000000/0x600000)=nil, 0x600003, 0x8) [ 55.253158][ T8028] IPVS: ftp: loaded support on port[0] = 21 [ 55.276599][ T8020] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.374844][ T8023] device hsr_slave_0 entered promiscuous mode [ 55.393665][ T8023] device hsr_slave_1 entered promiscuous mode [ 55.453062][ T8023] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.476247][ T8030] IPVS: ftp: loaded support on port[0] = 21 [ 55.518737][ T8023] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 55.584872][ T8023] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.656111][ T8023] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.715165][ T8023] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.770703][ T8032] IPVS: ftp: loaded support on port[0] = 21 [ 55.876175][ T8026] chnl_net:caif_netlink_parms(): no params data found [ 55.930401][ T8028] chnl_net:caif_netlink_parms(): no params data found [ 56.003598][ T8026] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.010737][ T8026] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.018554][ T8026] device bridge_slave_0 entered promiscuous mode [ 56.041684][ T8028] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.048766][ T8028] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.058227][ T8028] device bridge_slave_0 entered promiscuous mode [ 56.068135][ T8028] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.075467][ T8028] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.085172][ T8028] device bridge_slave_1 entered promiscuous mode [ 56.095822][ T8026] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.102857][ T8026] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.111691][ T8026] device bridge_slave_1 entered promiscuous mode [ 56.130211][ T8026] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.141073][ T8026] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.162710][ T8032] chnl_net:caif_netlink_parms(): no params data found [ 56.193837][ T8028] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.218162][ T8028] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.234108][ T8026] team0: Port device team_slave_0 added [ 56.248202][ T8026] team0: Port device team_slave_1 added [ 56.325780][ T8026] device hsr_slave_0 entered promiscuous mode [ 56.363434][ T8026] device hsr_slave_1 entered promiscuous mode [ 56.393102][ T8026] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.418681][ T8023] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.425935][ T8030] chnl_net:caif_netlink_parms(): no params data found [ 56.444410][ T8032] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.451462][ T8032] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.460212][ T8032] device bridge_slave_0 entered promiscuous mode [ 56.468865][ T8028] team0: Port device team_slave_0 added [ 56.481476][ T8023] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.502838][ T8032] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.511556][ T8032] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.519833][ T8032] device bridge_slave_1 entered promiscuous mode [ 56.536218][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.544890][ T2724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.553601][ T8028] team0: Port device team_slave_1 added [ 56.584240][ T8020] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.599214][ T8030] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.607379][ T8030] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.616041][ T8030] device bridge_slave_0 entered promiscuous mode [ 56.626678][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.636312][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.644929][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.652316][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.725914][ T8028] device hsr_slave_0 entered promiscuous mode [ 56.763469][ T8028] device hsr_slave_1 entered promiscuous mode [ 56.813075][ T8028] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.822227][ T8032] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.836163][ T8020] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.848297][ T8030] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.856013][ T8030] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.864196][ T8030] device bridge_slave_1 entered promiscuous mode [ 56.871277][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.879161][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.887074][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.898712][ T8032] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.913563][ T8026] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 56.939809][ T8026] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.998274][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.007043][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.016007][ T3957] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.023085][ T3957] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.050351][ T8030] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.060444][ T8026] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 57.094537][ T8026] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 57.125654][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.134162][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.142488][ T8036] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.149580][ T8036] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.157225][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.166262][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.174646][ T8036] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.181673][ T8036] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.190653][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.199079][ T8036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.209182][ T8032] team0: Port device team_slave_0 added [ 57.218859][ T8032] team0: Port device team_slave_1 added [ 57.226320][ T8030] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.257048][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.276266][ T8030] team0: Port device team_slave_0 added [ 57.300712][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.309705][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.319249][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.327783][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.336775][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.345906][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.354472][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.363044][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.372192][ T8030] team0: Port device team_slave_1 added [ 57.398189][ T8028] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 57.485590][ T8032] device hsr_slave_0 entered promiscuous mode [ 57.523269][ T8032] device hsr_slave_1 entered promiscuous mode [ 57.563001][ T8032] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.571926][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.579697][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.587567][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.595909][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.604408][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.612576][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.629224][ T8020] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.640265][ T8020] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.686391][ T8030] device hsr_slave_0 entered promiscuous mode [ 57.734637][ T8030] device hsr_slave_1 entered promiscuous mode [ 57.783587][ T8030] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.793941][ T8023] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.805487][ T8023] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.814085][ T8028] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 57.849925][ T8028] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 57.905058][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.913360][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.921736][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.930255][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.938841][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.947329][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.956164][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.986710][ T8028] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 58.058423][ T8032] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 58.099325][ T8032] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 58.155645][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.163438][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.170892][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.178414][ T3957] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.191786][ T8023] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.201494][ T8020] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.209013][ T8030] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 58.254639][ T8032] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 58.314763][ T8032] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 58.360885][ T8030] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 58.453252][ T8030] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 163.492908][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 163.499901][ C0] (detected by 0, t=10502 jiffies, g=5873, q=70) [ 163.506301][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953507-4294943004), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 163.519640][ C0] kworker/0:2 R running task 27072 3957 2 0x80004008 [ 163.527554][ C0] Workqueue: rcu_gp process_srcu [ 163.532476][ C0] Call Trace: [ 163.535751][ C0] [ 163.538595][ C0] sched_show_task+0x40f/0x560 [ 163.543356][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 163.548637][ C0] update_process_times+0x12d/0x180 [ 163.553838][ C0] tick_sched_timer+0x263/0x420 [ 163.558754][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 163.564380][ C0] __hrtimer_run_queues+0x403/0x840 [ 163.569578][ C0] hrtimer_interrupt+0x38c/0xda0 [ 163.574519][ C0] ? debug_smp_processor_id+0x9/0x20 [ 163.579793][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 163.585432][ C0] apic_timer_interrupt+0xf/0x20 [ 163.590352][ C0] [ 163.593279][ C0] RIP: 0010:free_thread_stack+0x18b/0x590 [ 163.598998][ C0] Code: ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 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 eb a3 69 00 48 8b 1b e9 82 ff ff ff e8 de 2c 2e [ 163.618590][ C0] RSP: 0018:ffffc9000cc1f958 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 163.626989][ C0] RAX: 1ffff1100d825ed1 RBX: ffff88806c12f688 RCX: ffff888098c8c3c0 [ 163.634945][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b05380 [ 163.642903][ C0] RBP: ffffc9000cc1f990 R08: 000000000003a768 R09: fffffbfff120248a [ 163.650862][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c12f720 [ 163.658820][ C0] R13: dffffc0000000000 R14: 1ffff1100d825ee4 R15: ffff8880a8b47a68 [ 163.666800][ C0] ? free_thread_stack+0x168/0x590 [ 163.671902][ C0] put_task_stack+0xa3/0x130 [ 163.676478][ C0] finish_task_switch+0x3f1/0x550 [ 163.681497][ C0] __schedule+0x9a8/0xcc0 [ 163.685820][ C0] ? ___preempt_schedule+0x16/0x18 [ 163.690938][ C0] preempt_schedule+0xdb/0x120 [ 163.695699][ C0] ___preempt_schedule+0x16/0x18 [ 163.700635][ C0] ? check_preemption_disabled+0x37/0x260 [ 163.706353][ C0] delay_tsc+0xe9/0xf0 [ 163.710421][ C0] __const_udelay+0x5e/0x70 [ 163.714916][ C0] try_check_zero+0x6e/0x380 [ 163.719504][ C0] process_srcu+0x1b7/0xd20 [ 163.724011][ C0] process_one_work+0x7ef/0x10d0 [ 163.728952][ C0] worker_thread+0xc01/0x1630 [ 163.733638][ C0] kthread+0x332/0x350 [ 163.737692][ C0] ? rcu_lock_release+0x30/0x30 [ 163.742527][ C0] ? kthread_blkcg+0xe0/0xe0 [ 163.747105][ C0] ret_from_fork+0x24/0x30 [ 163.751522][ C0] rcu: rcu_preempt kthread starved for 10527 jiffies! g5873 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 163.762603][ C0] rcu: RCU grace-period kthread stack dump: [ 163.768479][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 163.776367][ C0] Call Trace: [ 163.779648][ C0] __schedule+0x9a0/0xcc0 [ 163.783976][ C0] schedule+0x181/0x210 [ 163.788120][ C0] schedule_timeout+0x14f/0x240 [ 163.793093][ C0] ? run_local_timers+0x120/0x120 [ 163.798126][ C0] rcu_gp_kthread+0xed8/0x1770 [ 163.802899][ C0] kthread+0x332/0x350 [ 163.806961][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 163.812066][ C0] ? kthread_blkcg+0xe0/0xe0 [ 163.816647][ C0] ret_from_fork+0x24/0x30