[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.951916][ T26] audit: type=1800 audit(1575438446.689:25): pid=8253 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.971146][ T26] audit: type=1800 audit(1575438446.689:26): pid=8253 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.004943][ T26] audit: type=1800 audit(1575438446.689:27): pid=8253 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 '10.128.0.88' (ECDSA) to the list of known hosts. 2019/12/04 05:47:37 fuzzer started 2019/12/04 05:47:39 dialing manager at 10.128.0.26:42111 2019/12/04 05:47:39 syscalls: 2689 2019/12/04 05:47:39 code coverage: enabled 2019/12/04 05:47:39 comparison tracing: enabled 2019/12/04 05:47:39 extra coverage: extra coverage is not supported by the kernel 2019/12/04 05:47:39 setuid sandbox: enabled 2019/12/04 05:47:39 namespace sandbox: enabled 2019/12/04 05:47:39 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 05:47:39 fault injection: enabled 2019/12/04 05:47:39 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 05:47:39 net packet injection: enabled 2019/12/04 05:47:39 net device setup: enabled 2019/12/04 05:47:39 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 05:47:39 devlink PCI setup: PCI device 0000:00:10.0 is not available 05:47:40 executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) syz_mount_image$reiserfs(&(0x7f0000000080)='reiserfs\x00', &(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000580)={[{@commit={'commit', 0x3d, 0x100000000}}]}) 05:47:40 executing program 1: r0 = socket$inet_udplite(0x2, 0x2, 0x88) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x4, 0x10032, 0xffffffffffffffff, 0x0) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000000480)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000300)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) r2 = socket$inet6_sctp(0xa, 0x1, 0x84) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(r2, 0x84, 0xf, &(0x7f0000013ff4)=@assoc_value, &(0x7f0000002000)=0xff0a) r3 = socket(0x2, 0x803, 0xff) r4 = open(&(0x7f0000000300)='.\x00', 0x0, 0x0) r5 = fcntl$dupfd(r3, 0x0, r4) setsockopt$inet_sctp6_SCTP_CONTEXT(r2, 0x84, 0xd, &(0x7f0000000180), 0x8) sendmsg$NET_DM_CMD_START(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000180)={&(0x7f0000000140)={0x14}, 0x14}}, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) r6 = dup2(r0, r2) dup3(r6, r1, 0x0) syzkaller login: [ 65.999774][ T8419] IPVS: ftp: loaded support on port[0] = 21 [ 66.186974][ T8419] chnl_net:caif_netlink_parms(): no params data found [ 66.204372][ T8422] IPVS: ftp: loaded support on port[0] = 21 05:47:41 executing program 2: r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f00000000c0)={0xaa, 0x8}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000001fe2)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) madvise(&(0x7f0000000000/0x600000)=nil, 0x602000, 0x8) ioctl$UFFDIO_ZEROPAGE(r0, 0xc020aa04, 0x0) [ 66.256028][ T8419] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.264700][ T8419] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.273667][ T8419] device bridge_slave_0 entered promiscuous mode [ 66.296131][ T8419] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.303365][ T8419] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.312504][ T8419] device bridge_slave_1 entered promiscuous mode [ 66.335628][ T8419] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.350620][ T8419] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.431963][ T8419] team0: Port device team_slave_0 added [ 66.461262][ T8419] team0: Port device team_slave_1 added [ 66.471877][ T8422] chnl_net:caif_netlink_parms(): no params data found 05:47:41 executing program 3: r0 = socket$netlink(0x10, 0x3, 0x8000000004) writev(r0, &(0x7f0000000000)=[{&(0x7f00000002c0)="580000001500add427323b470c45b45602067fffffff81004e22000d00ff0028925aa80020007b00090080000efffeffe809000000ff0000f03ac71082300000ffffffffffffffffffe7ee0000000000000000027197cbfa", 0x58}], 0x1) [ 66.531828][ T8419] device hsr_slave_0 entered promiscuous mode [ 66.599283][ T8419] device hsr_slave_1 entered promiscuous mode 05:47:41 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x3, 0x4, &(0x7f0000000000)=@framed={{0x18, 0x2}, [@call={0x85, 0x0, 0x0, 0x4f}]}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f000062b000)=""/4096, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 66.725276][ T8425] IPVS: ftp: loaded support on port[0] = 21 [ 66.777592][ T8427] IPVS: ftp: loaded support on port[0] = 21 [ 66.840596][ T8419] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.885002][ T8419] netdevsim netdevsim0 netdevsim1: renamed from eth1 05:47:41 executing program 5: r0 = socket$vsock_stream(0x28, 0x1, 0x0) setsockopt$SO_VM_SOCKETS_BUFFER_MAX_SIZE(r0, 0x28, 0x6, 0x0, 0x10) [ 66.940233][ T8422] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.947338][ T8422] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.957781][ T8422] device bridge_slave_0 entered promiscuous mode [ 66.975020][ T8419] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.031044][ T8422] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.048532][ T8422] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.056426][ T8422] device bridge_slave_1 entered promiscuous mode [ 67.079859][ T8419] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.126745][ T8419] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.134426][ T8419] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.142694][ T8419] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.149975][ T8419] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.173750][ T8422] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.185623][ T8429] IPVS: ftp: loaded support on port[0] = 21 [ 67.201959][ T8422] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.221971][ T8430] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.231674][ T8430] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.277463][ T8432] IPVS: ftp: loaded support on port[0] = 21 [ 67.292553][ T8422] team0: Port device team_slave_0 added [ 67.301804][ T8422] team0: Port device team_slave_1 added [ 67.370931][ T8422] device hsr_slave_0 entered promiscuous mode [ 67.409547][ T8422] device hsr_slave_1 entered promiscuous mode [ 67.449646][ T8422] debugfs: Directory 'hsr0' with parent '/' already present! [ 67.478469][ T8425] chnl_net:caif_netlink_parms(): no params data found [ 67.549027][ T8422] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.604406][ T8422] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.672016][ T8422] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.775867][ T8425] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.783359][ T8425] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.791661][ T8425] device bridge_slave_0 entered promiscuous mode [ 67.799290][ T8422] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.891671][ T8425] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.900874][ T8425] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.910221][ T8425] device bridge_slave_1 entered promiscuous mode [ 67.959181][ T8425] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.988934][ T8419] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.997091][ T8425] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.008631][ T8432] chnl_net:caif_netlink_parms(): no params data found [ 68.041785][ T8425] team0: Port device team_slave_0 added [ 68.052187][ T8425] team0: Port device team_slave_1 added [ 68.074896][ T8427] chnl_net:caif_netlink_parms(): no params data found [ 68.172100][ T8425] device hsr_slave_0 entered promiscuous mode [ 68.229486][ T8425] device hsr_slave_1 entered promiscuous mode [ 68.278307][ T8425] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.286349][ T8429] chnl_net:caif_netlink_parms(): no params data found [ 68.299457][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.306579][ T8432] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.315276][ T8432] device bridge_slave_0 entered promiscuous mode [ 68.331268][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.340461][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.373113][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.380975][ T8432] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.389375][ T8432] device bridge_slave_1 entered promiscuous mode [ 68.409601][ T8432] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.441778][ T8419] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.472717][ T8432] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.490649][ T8427] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.497895][ T8427] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.506172][ T8427] device bridge_slave_0 entered promiscuous mode [ 68.522031][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.531905][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.541073][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.548608][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.573607][ T8425] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.624906][ T8427] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.632990][ T8427] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.641400][ T8427] device bridge_slave_1 entered promiscuous mode [ 68.649600][ T8429] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.656738][ T8429] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.664921][ T8429] device bridge_slave_0 entered promiscuous mode [ 68.673104][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.682671][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.691968][ T3335] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.699552][ T3335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.709407][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.718906][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.727873][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.736866][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.745756][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.754811][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.765003][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.776074][ T8432] team0: Port device team_slave_0 added [ 68.784502][ T8425] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.857004][ T8425] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.912989][ T8429] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.920294][ T8429] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.927991][ T8429] device bridge_slave_1 entered promiscuous mode [ 68.953913][ T8429] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.965000][ T8432] team0: Port device team_slave_1 added [ 68.980773][ T8425] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.014775][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.023426][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.032983][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.041653][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.056096][ T8429] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.072917][ T8419] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.082666][ T8427] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.099394][ T8422] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.171245][ T8432] device hsr_slave_0 entered promiscuous mode [ 69.208697][ T8432] device hsr_slave_1 entered promiscuous mode [ 69.268326][ T8432] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.277471][ T8427] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.320440][ T8422] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.344303][ T8429] team0: Port device team_slave_0 added [ 69.355188][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.363727][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.373779][ T8427] team0: Port device team_slave_0 added [ 69.383877][ T8427] team0: Port device team_slave_1 added [ 69.443130][ T8427] device hsr_slave_0 entered promiscuous mode [ 69.499021][ T8427] device hsr_slave_1 entered promiscuous mode [ 69.569636][ T8427] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.582551][ T8429] team0: Port device team_slave_1 added [ 69.589461][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.604768][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.613855][ T3335] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.620991][ T3335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.630347][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.674579][ T8419] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.683427][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.691881][ T3335] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.710722][ T8432] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.811127][ T8429] device hsr_slave_0 entered promiscuous mode [ 69.848689][ T8429] device hsr_slave_1 entered promiscuous mode [ 69.898287][ T8429] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.920168][ T8425] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.927204][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.936371][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.950129][ T3692] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.957261][ T3692] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.966137][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.975132][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.001052][ T8432] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 70.060101][ T8432] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 70.100017][ T8425] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.109966][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.119998][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.128652][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.137634][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.154814][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.171381][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.186043][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.233855][ T8427] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.275707][ T8441] REISERFS warning (device loop0): super-6508 reiserfs_parse_options: bad value 0x0000000100000000 for -ocommit [ 70.275707][ T8441] [ 175.168045][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 175.175048][ C0] (detected by 0, t=10502 jiffies, g=7089, q=143) [ 175.181545][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954574-4294944071), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 175.194888][ C0] rcu_preempt R running task 29032 10 2 0x80004008 [ 175.202772][ C0] Call Trace: [ 175.206167][ C0] [ 175.209116][ C0] sched_show_task+0x40f/0x560 [ 175.213903][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 175.219201][ C0] update_process_times+0x12d/0x180 [ 175.224394][ C0] tick_sched_timer+0x263/0x420 [ 175.229241][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.235139][ C0] __hrtimer_run_queues+0x403/0x840 [ 175.240344][ C0] hrtimer_interrupt+0x38c/0xda0 [ 175.245285][ C0] ? debug_smp_processor_id+0x9/0x20 [ 175.250565][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 175.256093][ C0] apic_timer_interrupt+0xf/0x20 [ 175.261015][ C0] [ 175.263956][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 175.269658][ 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 [ 175.289257][ C0] RSP: 0018:ffffc90000d0fc48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.297665][ C0] RAX: 1ffff11013d80d21 RBX: ffff88809ec06908 RCX: 0000000000000000 [ 175.305624][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000240a300 [ 175.313601][ C0] RBP: ffffc90000d0fc80 R08: 000000000003a768 R09: ffffed10121f5a7f [ 175.324191][ C0] R10: ffffed10121f5a7f R11: 0000000000000000 R12: ffff88809ec069a0 [ 175.332158][ C0] R13: dffffc0000000000 R14: 1ffff11013d80d34 R15: ffff888090fad3e8 [ 175.340664][ C0] ? free_thread_stack+0x12e/0x590 [ 175.345764][ C0] put_task_stack+0xa3/0x130 [ 175.350345][ C0] finish_task_switch+0x3f1/0x550 [ 175.355363][ C0] __schedule+0x9a8/0xcc0 [ 175.359689][ C0] schedule+0x181/0x210 [ 175.363833][ C0] schedule_timeout+0x14f/0x240 [ 175.368669][ C0] ? run_local_timers+0x120/0x120 [ 175.373685][ C0] rcu_gp_kthread+0xed8/0x1770 [ 175.378447][ C0] kthread+0x332/0x350 [ 175.382498][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 175.387614][ C0] ? kthread_blkcg+0xe0/0xe0 [ 175.392192][ C0] ret_from_fork+0x24/0x30 [ 175.396696][ C0] rcu: rcu_preempt kthread starved for 10524 jiffies! g7089 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 175.407796][ C0] rcu: RCU grace-period kthread stack dump: [ 175.413684][ C0] rcu_preempt R running task 29032 10 2 0x80004008 [ 175.421594][ C0] Call Trace: [ 175.424866][ C0] [ 175.427724][ C0] sched_show_task+0x40f/0x560 [ 175.432581][ C0] rcu_check_gp_kthread_starvation+0x170/0x1b0 [ 175.438726][ C0] rcu_sched_clock_irq+0x17d3/0x1ad0 [ 175.444008][ C0] update_process_times+0x12d/0x180 [ 175.449194][ C0] tick_sched_timer+0x263/0x420 [ 175.454029][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.459560][ C0] __hrtimer_run_queues+0x403/0x840 [ 175.464761][ C0] hrtimer_interrupt+0x38c/0xda0 [ 175.469706][ C0] ? debug_smp_processor_id+0x9/0x20 [ 175.474984][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 175.480609][ C0] apic_timer_interrupt+0xf/0x20 [ 175.485786][ C0] [ 175.488731][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 175.495389][ 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 [ 175.514991][ C0] RSP: 0018:ffffc90000d0fc48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.523911][ C0] RAX: 1ffff11013d80d21 RBX: ffff88809ec06908 RCX: 0000000000000000 [ 175.531868][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000240a300 [ 175.539941][ C0] RBP: ffffc90000d0fc80 R08: 000000000003a768 R09: ffffed10121f5a7f [ 175.547899][ C0] R10: ffffed10121f5a7f R11: 0000000000000000 R12: ffff88809ec069a0 [ 175.555855][ C0] R13: dffffc0000000000 R14: 1ffff11013d80d34 R15: ffff888090fad3e8 [ 175.563833][ C0] ? free_thread_stack+0x12e/0x590 [ 175.569035][ C0] put_task_stack+0xa3/0x130 [ 175.573636][ C0] finish_task_switch+0x3f1/0x550 [ 175.578680][ C0] __schedule+0x9a8/0xcc0 [ 175.583037][ C0] schedule+0x181/0x210 [ 175.587181][ C0] schedule_timeout+0x14f/0x240 [ 175.592019][ C0] ? run_local_timers+0x120/0x120 [ 175.597042][ C0] rcu_gp_kthread+0xed8/0x1770 [ 175.601808][ C0] kthread+0x332/0x350 [ 175.605860][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 175.610956][ C0] ? kthread_blkcg+0xe0/0xe0 [ 175.615538][ C0] ret_from_fork+0x24/0x30