[ 44.268053][ T25] audit: type=1800 audit(1575331352.883:26): pid=8044 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.290036][ T25] audit: type=1800 audit(1575331352.893:27): pid=8044 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.321260][ T25] audit: type=1800 audit(1575331352.893:28): pid=8044 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. [ 45.154170][ T25] audit: type=1800 audit(1575331353.783:29): pid=8044 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 '10.128.0.85' (ECDSA) to the list of known hosts. 2019/12/03 00:02:42 fuzzer started 2019/12/03 00:02:44 dialing manager at 10.128.0.26:38907 2019/12/03 00:02:44 syscalls: 2697 2019/12/03 00:02:44 code coverage: enabled 2019/12/03 00:02:44 comparison tracing: enabled 2019/12/03 00:02:44 extra coverage: extra coverage is not supported by the kernel 2019/12/03 00:02:44 setuid sandbox: enabled 2019/12/03 00:02:44 namespace sandbox: enabled 2019/12/03 00:02:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 00:02:44 fault injection: enabled 2019/12/03 00:02:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 00:02:44 net packet injection: enabled 2019/12/03 00:02:44 net device setup: enabled 2019/12/03 00:02:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 00:02:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 00:02:46 executing program 0: mkdir(&(0x7f0000fd5ff8)='./file0\x00', 0x0) mount(0x0, &(0x7f0000027000)='./file0\x00', &(0x7f0000018ffa)='ramfs\x00', 0x0, 0x0) r0 = creat(&(0x7f0000df1000)='./file0/bus\x00', 0x0) unshare(0x40600) fstat(r0, &(0x7f0000000200)) 00:02:46 executing program 1: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 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) r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/nullb0\x00', 0x801, 0x0) ioctl$BLKZEROOUT(r0, 0x127f, &(0x7f0000000080)={0x0, 0x4004400}) syzkaller login: [ 57.582962][ T8208] IPVS: ftp: loaded support on port[0] = 21 00:02:46 executing program 2: mkdir(&(0x7f00000000c0)='./file0\x00', 0x0) perf_event_open(&(0x7f000000a000)={0x5, 0x70, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}, 0x8000000200000000, 0x800007f}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000fb5ffc)='nfs\x00', 0x0, &(0x7f000000a000)) mount(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000180)='rpc_pipefs\x00', 0x0, 0x0) umount2(&(0x7f0000000040)='./file0\x00', 0x0) [ 57.733910][ T8208] chnl_net:caif_netlink_parms(): no params data found [ 57.783433][ T8211] IPVS: ftp: loaded support on port[0] = 21 [ 57.844721][ T8208] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.853029][ T8208] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.862365][ T8208] device bridge_slave_0 entered promiscuous mode [ 57.886805][ T8208] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.893898][ T8208] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.903108][ T8208] device bridge_slave_1 entered promiscuous mode [ 57.938409][ T8208] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.950956][ T8208] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.967232][ T8213] IPVS: ftp: loaded support on port[0] = 21 [ 58.011024][ T8208] team0: Port device team_slave_0 added 00:02:46 executing program 3: bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x1, 0x5, &(0x7f0000000a80)=ANY=[@ANYBLOB="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"/707], &(0x7f0000000140)='vS\xfdIG|\x8aL[\xf2\'\x9c\xea\xb1\xc0\xb1\x19\x91\x9d/Q\xd9\xe3T\xce\xdax;\x02%\xc5\x1c\xd5GA\xad[(\xbblZ\x01\x1dF\x92#]%sj\xd0i\xc6C\x1f&\xe2\xc5\xa5z\x7f\xe1 \xfb\xc27\x03\x84\x8e\xef\x82-\xfc$$\xaf\v\xbd\x95\x1e\x0f\xbeVI\xec\r!\f\x86\xf5\xfb[Y\x1e\xd4\xdfc\xb1\xc8\xa2\xc1/5\xffr\x1f\x80@\xb8F\xea\xde\x93\xa1\xcb6\xee\xf2\xce\x95\xf2\xfdxR\x17F\xad\xc1~\xa2\x97=O^o\"\xbb\xa8\x9746'}, 0x48) [ 58.058856][ T8208] team0: Port device team_slave_1 added [ 58.153678][ T8211] chnl_net:caif_netlink_parms(): no params data found [ 58.207775][ T8208] device hsr_slave_0 entered promiscuous mode 00:02:46 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = socket$unix(0x1, 0x10004000000002, 0x0) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) unshare(0x400) r3 = socket$inet6_sctp(0xa, 0x5, 0x84) setsockopt$inet_sctp6_SCTP_ASSOCINFO(r3, 0x84, 0xa, 0x0, 0x0) [ 58.295232][ T8208] device hsr_slave_1 entered promiscuous mode [ 58.352337][ T8216] IPVS: ftp: loaded support on port[0] = 21 [ 58.453441][ T8213] chnl_net:caif_netlink_parms(): no params data found 00:02:47 executing program 5: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000300)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000040)=0x19) r1 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0x5) setuid(r2) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000100)=0x5) [ 58.541145][ T8219] IPVS: ftp: loaded support on port[0] = 21 [ 58.560933][ T8211] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.573464][ T8211] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.583872][ T8211] device bridge_slave_0 entered promiscuous mode [ 58.593508][ T8208] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 58.658794][ T8208] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 58.749796][ T8213] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.757015][ T8213] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.764543][ T8213] device bridge_slave_0 entered promiscuous mode [ 58.771867][ T8211] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.779362][ T8211] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.788352][ T8211] device bridge_slave_1 entered promiscuous mode [ 58.805793][ T8208] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 58.838642][ T8208] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 58.896858][ T8213] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.903958][ T8213] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.912532][ T8213] device bridge_slave_1 entered promiscuous mode [ 58.929825][ T8221] IPVS: ftp: loaded support on port[0] = 21 [ 58.940716][ T8211] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.979661][ T8211] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.007811][ T8213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.036752][ T8211] team0: Port device team_slave_0 added [ 59.051291][ T8213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.074165][ T8213] team0: Port device team_slave_0 added [ 59.082429][ T8213] team0: Port device team_slave_1 added [ 59.089597][ T8211] team0: Port device team_slave_1 added [ 59.099727][ T8216] chnl_net:caif_netlink_parms(): no params data found [ 59.150153][ T8216] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.157848][ T8216] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.166191][ T8216] device bridge_slave_0 entered promiscuous mode [ 59.174222][ T8216] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.181338][ T8216] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.189062][ T8216] device bridge_slave_1 entered promiscuous mode [ 59.257658][ T8213] device hsr_slave_0 entered promiscuous mode [ 59.315399][ T8213] device hsr_slave_1 entered promiscuous mode [ 59.355139][ T8213] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.418279][ T8211] device hsr_slave_0 entered promiscuous mode [ 59.455352][ T8211] device hsr_slave_1 entered promiscuous mode [ 59.516870][ T8211] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.546352][ T8216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.563908][ T8216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.587446][ T8216] team0: Port device team_slave_0 added [ 59.620678][ T8216] team0: Port device team_slave_1 added [ 59.628566][ T8213] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.679209][ T8213] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.740791][ T8213] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.796816][ T8211] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 59.837323][ T8211] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 59.870140][ T8211] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 59.927644][ T8211] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 59.978198][ T8213] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 60.040788][ T8208] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.097708][ T8216] device hsr_slave_0 entered promiscuous mode [ 60.136266][ T8216] device hsr_slave_1 entered promiscuous mode [ 60.175455][ T8216] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.194244][ T8219] chnl_net:caif_netlink_parms(): no params data found [ 60.213429][ T8208] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.240019][ T8221] chnl_net:caif_netlink_parms(): no params data found [ 60.250652][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.259526][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.307281][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.316570][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.324968][ T3701] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.332167][ T3701] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.340212][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.349180][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.357701][ T3701] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.364753][ T3701] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.372355][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.381559][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.391096][ T8216] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.441895][ T8216] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 60.512587][ T8208] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.523697][ T8208] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.537500][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.546180][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.554641][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.563135][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.571609][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.580649][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.589156][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.597735][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.606108][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.617162][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.625146][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.637530][ T8216] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 60.713566][ T8219] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.721876][ T8219] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.729646][ T8219] device bridge_slave_0 entered promiscuous mode [ 60.739871][ T8216] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 60.807834][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.815590][ T3701] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.833897][ T8211] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.849951][ T8219] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.858779][ T8219] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.866842][ T8219] device bridge_slave_1 entered promiscuous mode [ 60.880419][ T8221] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.887647][ T8221] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.895893][ T8221] device bridge_slave_0 entered promiscuous mode [ 60.903477][ T8221] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.911835][ T8221] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.919614][ T8221] device bridge_slave_1 entered promiscuous mode [ 60.936063][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.943812][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.966713][ T8208] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.990539][ T8211] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.003299][ T8219] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.017835][ T8221] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.030970][ T8221] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.047919][ T8219] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.076273][ T8213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.106886][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.126785][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.136364][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.143472][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.161624][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.170421][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.184258][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.191381][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.208075][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.243396][ T8216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.270959][ T8216] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.312958][ T8216] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.330008][ T8216] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.370239][ T8216] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 166.154879][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.162170][ C1] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8229 [ 166.169612][ C1] (detected by 1, t=10503 jiffies, g=6321, q=536) [ 166.176099][ C1] syz-executor.0 R running task 27912 8229 8208 0x0000400a [ 166.183991][ C1] Call Trace: [ 166.187261][ C1] [ 166.190120][ C1] sched_show_task+0x40f/0x560 [ 166.194894][ C1] rcu_sched_clock_irq+0x16b1/0x1ad0 [ 166.200193][ C1] update_process_times+0x12d/0x180 [ 166.205385][ C1] tick_sched_timer+0x263/0x420 [ 166.210225][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.215761][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.220962][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.225906][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.231183][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.236721][ C1] apic_timer_interrupt+0xf/0x20 [ 166.241645][ C1] [ 166.244753][ C1] RIP: 0010:free_thread_stack+0x195/0x590 [ 166.250463][ C1] Code: 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 00 43 80 3c 2e 00 75 18 eb 1e [ 166.270156][ C1] RSP: 0018:ffffc900021a7968 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.278560][ C1] RAX: 1ffff11012cc88c1 RBX: ffff888096644608 RCX: ffff8880993b6580 [ 166.286522][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00025793c0 [ 166.294488][ C1] RBP: ffffc900021a79a0 R08: 000000000003a768 R09: fffffbfff120248a [ 166.302450][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880966446a0 [ 166.310412][ C1] R13: dffffc0000000000 R14: 1ffff11012cc88d4 R15: ffff88809944b6a8 [ 166.318398][ C1] ? free_thread_stack+0x168/0x590 [ 166.323503][ C1] put_task_stack+0xa3/0x130 [ 166.328081][ C1] finish_task_switch+0x3f1/0x550 [ 166.333208][ C1] __schedule+0x9a8/0xcc0 [ 166.337536][ C1] ? ___preempt_schedule_notrace+0x16/0x27 [ 166.343343][ C1] preempt_schedule_notrace+0xdb/0x120 [ 166.348796][ C1] ___preempt_schedule_notrace+0x16/0x27 [ 166.354445][ C1] ? rcu_is_watching+0x57/0xa0 [ 166.359219][ C1] rcu_is_watching+0x82/0xa0 [ 166.363811][ C1] memcg_kmem_get_cache+0x301/0x590 [ 166.369000][ C1] ? __should_failslab+0x11a/0x160 [ 166.374100][ C1] ? vm_area_alloc+0x24/0xf0 [ 166.378686][ C1] kmem_cache_alloc+0x86/0x2e0 [ 166.383439][ C1] vm_area_alloc+0x24/0xf0 [ 166.387848][ C1] mmap_region+0xaf2/0x1cb0 [ 166.392354][ C1] do_mmap+0xabb/0x1120 [ 166.396518][ C1] vm_mmap_pgoff+0x13d/0x1d0 [ 166.401109][ C1] ksys_mmap_pgoff+0x104/0x560 [ 166.405861][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.411136][ C1] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 166.416855][ C1] __x64_sys_mmap+0x103/0x120 [ 166.421624][ C1] do_syscall_64+0xf7/0x1c0 [ 166.426143][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.432122][ C1] RIP: 0033:0x45a6ca [ 166.436005][ C1] Code: 89 f5 41 54 49 89 fc 55 53 74 35 49 63 e8 48 63 da 4d 89 f9 49 89 e8 4d 63 d6 48 89 da 4c 89 ee 4c 89 e7 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4e 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 00 [ 166.455603][ C1] RSP: 002b:00007ffcf40e6648 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 166.464004][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a6ca [ 166.471966][ C1] RDX: 0000000000000003 RSI: 0000000000021000 RDI: 0000000000000000 [ 166.479927][ C1] RBP: ffffffffffffffff R08: ffffffffffffffff R09: 0000000000000000 [ 166.487888][ C1] R10: 0000000000020022 R11: 0000000000000246 R12: 0000000000000000 [ 166.495863][ C1] R13: 0000000000021000 R14: 0000000000020022 R15: 0000000000000000 [ 166.503880][ C1] rcu: rcu_preempt kthread starved for 10503 jiffies! g6321 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.514977][ C1] rcu: RCU grace-period kthread stack dump: [ 166.520862][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 166.528758][ C1] Call Trace: [ 166.532046][ C1] __schedule+0x9a0/0xcc0 [ 166.536378][ C1] schedule+0x181/0x210 [ 166.540528][ C1] schedule_timeout+0x14f/0x240 [ 166.545393][ C1] ? run_local_timers+0x120/0x120 [ 166.550422][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.555189][ C1] kthread+0x332/0x350 [ 166.559249][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.564352][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.568931][ C1] ret_from_fork+0x24/0x30