[ 42.493238][ T25] audit: type=1800 audit(1575349901.688:26): pid=8035 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.541173][ T25] audit: type=1800 audit(1575349901.688:27): pid=8035 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.565686][ T25] audit: type=1800 audit(1575349901.698:28): pid=8035 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. [ 43.341133][ T25] audit: type=1800 audit(1575349902.558:29): pid=8035 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. 2019/12/03 05:11:51 fuzzer started 2019/12/03 05:11:53 dialing manager at 10.128.0.26:38907 2019/12/03 05:11:53 syscalls: 2697 2019/12/03 05:11:53 code coverage: enabled 2019/12/03 05:11:53 comparison tracing: enabled 2019/12/03 05:11:53 extra coverage: extra coverage is not supported by the kernel 2019/12/03 05:11:53 setuid sandbox: enabled 2019/12/03 05:11:53 namespace sandbox: enabled 2019/12/03 05:11:53 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 05:11:53 fault injection: enabled 2019/12/03 05:11:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 05:11:53 net packet injection: enabled 2019/12/03 05:11:53 net device setup: enabled 2019/12/03 05:11:53 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 05:11:53 devlink PCI setup: PCI device 0000:00:10.0 is not available 05:11:54 executing program 0: r0 = syz_init_net_socket$nfc_llcp(0x27, 0x3, 0x1) bind$nfc_llcp(r0, &(0x7f0000000040)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "ac41d1c45d71d3ed2a4182b9a6fdfebbf3550b2209895f348f8fc6716e08d1364ad5526c6e898cbb38c310d32b6a3217fa0cb9e4cafe0569942f46cde7188b"}, 0x60) bind$nfc_llcp(r0, &(0x7f0000000140)={0x27, 0x0, 0x0, 0x0, 0x0, 0x0, "db50531d2993784ed5014516c57dc97709bde204be581aef49fc6aa593c89efe66f41cce862107b3907ff45ac0894a4b2a331a11b805a6828ae41872eaf34b"}, 0x60) 05:11:54 executing program 1: r0 = open(&(0x7f0000000000)='./bus\x00', 0x141042, 0x0) mmap(&(0x7f0000006000/0x3000)=nil, 0x3000, 0x0, 0x2812, r0, 0x0) perf_event_open(&(0x7f0000000180)={0x6, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1081}, 0x0, 0x0, 0xffffffffffffffff, 0x0) exit(0x0) mmap(&(0x7f0000004000/0x4000)=nil, 0x4000, 0x0, 0x32, 0xffffffffffffffff, 0x0) syzkaller login: [ 55.241336][ T8200] IPVS: ftp: loaded support on port[0] = 21 05:11:54 executing program 2: r0 = memfd_create(&(0x7f0000000040)='/dev/aux`Sofs\x00', 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) mmap(&(0x7f0000000000/0xaa2000)=nil, 0xaa2000, 0x5, 0x12, r0, 0x0) rt_sigaction(0x7, &(0x7f0000b4a000)={0xfffffffffffffffd, {0x4000001}, 0x0, 0x0}, 0x0, 0x8, &(0x7f0000000000)) clone(0x208007fc, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) prctl$PR_SET_DUMPABLE(0x4, 0x0) socket$inet6(0xa, 0x0, 0x0) syz_open_procfs(0x0, &(0x7f00000000c0)='fd\x00') syz_open_procfs(0x0, &(0x7f0000000100)='net/ip6_mr_vif\x00') [ 55.404867][ T8200] chnl_net:caif_netlink_parms(): no params data found [ 55.433070][ T8203] IPVS: ftp: loaded support on port[0] = 21 [ 55.530404][ T8200] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.552896][ T8200] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.560863][ T8200] device bridge_slave_0 entered promiscuous mode [ 55.586123][ T8200] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.602898][ T8200] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.610942][ T8200] device bridge_slave_1 entered promiscuous mode 05:11:54 executing program 3: syz_open_dev$ndb(&(0x7f0000000100)='/dev/nbd#\x00', 0x0, 0x0) r0 = syz_open_dev$mice(0x0, 0x0, 0x0) r1 = socket(0xa, 0x2, 0x0) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000cab000)=0xa) setreuid(0x0, r2) ioctl$TIOCGISO7816(r0, 0x80285442, 0x0) [ 55.641764][ T8205] IPVS: ftp: loaded support on port[0] = 21 [ 55.649209][ T8200] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.675989][ T8200] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.796070][ T8200] team0: Port device team_slave_0 added [ 55.808242][ T8203] chnl_net:caif_netlink_parms(): no params data found [ 55.839221][ T8200] team0: Port device team_slave_1 added 05:11:55 executing program 4: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") pipe(&(0x7f0000000380)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_elf32(r2, &(0x7f0000000340)=ANY=[], 0xffffffc6) close(r2) r3 = socket$kcm(0x29, 0x5, 0x0) ioctl$int_in(r3, 0x5421, &(0x7f0000000000)=0x40102) splice(r1, 0x0, r2, 0x0, 0x100000000, 0x0) [ 55.927468][ T8200] device hsr_slave_0 entered promiscuous mode [ 56.005837][ T8200] device hsr_slave_1 entered promiscuous mode [ 56.108805][ T8208] IPVS: ftp: loaded support on port[0] = 21 05:11:55 executing program 5: r0 = socket$netlink(0x10, 0x3, 0xc) writev(r0, &(0x7f0000fb5ff0)=[{&(0x7f0000fb6000)="1f00000002031900000007000000e3800802bb0509000100010100493ffe58", 0x1f}], 0x1) r1 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f00000000c0)={'lo\x00@\x00', 0x101}) ioctl$sock_inet_SIOCSIFFLAGS(r1, 0x8914, &(0x7f0000000180)={'lo\x00\x00\x00\x00\x00\x00\x00\x02\x00'}) [ 56.167356][ T8203] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.184878][ T8203] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.194262][ T8203] device bridge_slave_0 entered promiscuous mode [ 56.211867][ T8210] IPVS: ftp: loaded support on port[0] = 21 [ 56.221494][ T8200] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.276124][ T8200] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.317810][ T8203] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.324994][ T8203] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.332502][ T8203] device bridge_slave_1 entered promiscuous mode [ 56.353027][ T8205] chnl_net:caif_netlink_parms(): no params data found [ 56.364237][ T8203] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.365139][ T8213] IPVS: ftp: loaded support on port[0] = 21 [ 56.376282][ T8200] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.446114][ T8200] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.527544][ T8203] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.573252][ T8203] team0: Port device team_slave_0 added [ 56.582086][ T8203] team0: Port device team_slave_1 added [ 56.665151][ T8203] device hsr_slave_0 entered promiscuous mode [ 56.703173][ T8203] device hsr_slave_1 entered promiscuous mode [ 56.753510][ T8203] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.776335][ T8205] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.783539][ T8205] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.791100][ T8205] device bridge_slave_0 entered promiscuous mode [ 56.817151][ T8205] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.825157][ T8205] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.834529][ T8205] device bridge_slave_1 entered promiscuous mode [ 56.853335][ T8205] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.885118][ T8205] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.941858][ T8203] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 56.986605][ T8203] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.034499][ T8203] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.082446][ T8205] team0: Port device team_slave_0 added [ 57.092536][ T8205] team0: Port device team_slave_1 added [ 57.101228][ T8213] chnl_net:caif_netlink_parms(): no params data found [ 57.116002][ T8203] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.285676][ T8205] device hsr_slave_0 entered promiscuous mode [ 57.323319][ T8205] device hsr_slave_1 entered promiscuous mode [ 57.362895][ T8205] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.370582][ T8210] chnl_net:caif_netlink_parms(): no params data found [ 57.382408][ T8208] chnl_net:caif_netlink_parms(): no params data found [ 57.392540][ T8213] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.400105][ T8213] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.407869][ T8213] device bridge_slave_0 entered promiscuous mode [ 57.415605][ T8213] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.422640][ T8213] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.430507][ T8213] device bridge_slave_1 entered promiscuous mode [ 57.478795][ T8208] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.486135][ T8208] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.494367][ T8208] device bridge_slave_0 entered promiscuous mode [ 57.510141][ T8210] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.517898][ T8210] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.525648][ T8210] device bridge_slave_0 entered promiscuous mode [ 57.538855][ T8210] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.546019][ T8210] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.554041][ T8210] device bridge_slave_1 entered promiscuous mode [ 57.573190][ T8210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.582350][ T8208] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.589913][ T8208] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.597615][ T8208] device bridge_slave_1 entered promiscuous mode [ 57.617314][ T8213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.636473][ T8210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.651439][ T8208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.663011][ T8213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.690661][ T8208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.709088][ T8205] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 57.744398][ T8205] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 57.815902][ T8205] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 57.875154][ T8205] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 57.916683][ T8210] team0: Port device team_slave_0 added [ 57.930358][ T8213] team0: Port device team_slave_0 added [ 57.937710][ T8213] team0: Port device team_slave_1 added [ 57.945779][ T8200] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.961312][ T8210] team0: Port device team_slave_1 added [ 57.977121][ T8208] team0: Port device team_slave_0 added [ 58.003604][ T8208] team0: Port device team_slave_1 added [ 58.065959][ T8213] device hsr_slave_0 entered promiscuous mode [ 58.103145][ T8213] device hsr_slave_1 entered promiscuous mode [ 58.142892][ T8213] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.159275][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.168083][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.225533][ T8210] device hsr_slave_0 entered promiscuous mode [ 58.283257][ T8210] device hsr_slave_1 entered promiscuous mode [ 58.342962][ T8210] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.365608][ T8200] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.435652][ T8208] device hsr_slave_0 entered promiscuous mode [ 58.493250][ T8208] device hsr_slave_1 entered promiscuous mode [ 58.532859][ T8208] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.544259][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.556357][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.565155][ T2709] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.572250][ T2709] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.581497][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.596601][ T8213] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 58.657506][ T8213] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 58.745010][ T8213] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 58.796527][ T8213] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 58.854708][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.865020][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.874459][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.881576][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.889396][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.897834][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.949109][ T8208] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.986297][ T8210] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.036828][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.046028][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.054520][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.063096][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.080585][ T8208] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.135048][ T8210] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.185257][ T8210] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.236012][ T8210] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.284638][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.292371][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.300835][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.316563][ T8208] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.354678][ T8208] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.436830][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.447996][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.461013][ T8205] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.472057][ T8203] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.484711][ T8200] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.506259][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.514579][ T2709] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.526678][ T8205] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.550556][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.559166][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.579424][ T8200] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.596909][ T8203] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.611757][ T8213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.619789][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.628564][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.637285][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.646612][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.655082][ T3193] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.662231][ T3193] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.691942][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.700452][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.709548][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.717987][ T3193] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.725077][ T3193] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.734438][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.743020][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.751756][ T3193] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.758868][ T3193] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.766673][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.775310][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.784315][ T3193] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.791357][ T3193] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.799540][ T3193] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.818701][ T8210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.851027][ T8213] 8021q: adding VLAN 0 to HW filter on device team0 [ 164.872717][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 164.879732][ C1] (detected by 1, t=10502 jiffies, g=6253, q=52) [ 164.886171][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953636-4294943133), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 164.899532][ C1] kworker/u4:3 R running task 26288 214 2 0x80004008 [ 164.907449][ C1] Workqueue: 0x0 (bat_events) [ 164.912199][ C1] Call Trace: [ 164.915509][ C1] [ 164.918359][ C1] sched_show_task+0x40f/0x560 [ 164.923119][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 164.928396][ C1] update_process_times+0x12d/0x180 [ 164.933587][ C1] tick_sched_timer+0x263/0x420 [ 164.938427][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.943960][ C1] __hrtimer_run_queues+0x403/0x840 [ 164.949162][ C1] hrtimer_interrupt+0x38c/0xda0 [ 164.954102][ C1] ? debug_smp_processor_id+0x9/0x20 [ 164.959398][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 164.964958][ C1] apic_timer_interrupt+0xf/0x20 [ 164.969925][ C1] [ 164.972881][ C1] RIP: 0010:mod_memcg_page_state+0x168/0x190 [ 164.978845][ C1] Code: c7 28 96 0a 89 e8 a8 9e 69 00 48 83 3d c8 21 c2 07 00 74 2d e8 99 27 2e 00 4c 89 ff 57 9d 0f 1f 44 00 00 5b 41 5c 41 5e 41 5f <5d> c3 e8 81 27 2e 00 0f 0b e8 7a 27 2e 00 0f 0b e8 73 27 2e 00 0f [ 164.998523][ C1] RSP: 0018:ffffc90001907c20 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 165.006922][ C1] RAX: ffffffff81487433 RBX: ffff888092073f88 RCX: ffff8880a91d4040 [ 165.014896][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002812ac0 [ 165.022854][ C1] RBP: ffffc90001907c20 R08: dffffc0000000000 R09: fffffbfff1287025 [ 165.030898][ C1] R10: fffffbfff1287025 R11: 0000000000000000 R12: ffff8880a0f0f020 [ 165.038859][ C1] R13: dffffc0000000000 R14: 1ffff110141e1e04 R15: ffff8880a31bd428 [ 165.046834][ C1] ? mod_memcg_page_state+0x123/0x190 [ 165.052193][ C1] free_thread_stack+0x168/0x590 [ 165.057116][ C1] put_task_stack+0xa3/0x130 [ 165.061702][ C1] finish_task_switch+0x3f1/0x550 [ 165.066715][ C1] __schedule+0x9a8/0xcc0 [ 165.071035][ C1] schedule+0x181/0x210 [ 165.075177][ C1] worker_thread+0x10d6/0x1630 [ 165.079949][ C1] kthread+0x332/0x350 [ 165.084014][ C1] ? rcu_lock_release+0x30/0x30 [ 165.088886][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.093485][ C1] ret_from_fork+0x24/0x30 [ 165.097917][ C1] rcu: rcu_preempt kthread starved for 10524 jiffies! g6253 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.109006][ C1] rcu: RCU grace-period kthread stack dump: [ 165.114890][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.122781][ C1] Call Trace: [ 165.126068][ C1] __schedule+0x9a0/0xcc0 [ 165.130403][ C1] schedule+0x181/0x210 [ 165.134564][ C1] schedule_timeout+0x14f/0x240 [ 165.139403][ C1] ? run_local_timers+0x120/0x120 [ 165.144435][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.149202][ C1] kthread+0x332/0x350 [ 165.153261][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.158363][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.162946][ C1] ret_from_fork+0x24/0x30