[ 41.073757][ T23] audit: type=1800 audit(1575340010.661:27): pid=7959 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.097857][ T23] audit: type=1800 audit(1575340010.661:28): pid=7959 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. [ 41.730663][ T23] audit: type=1800 audit(1575340011.391:29): pid=7959 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 41.750357][ T23] audit: type=1800 audit(1575340011.391:30): pid=7959 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 '10.128.0.108' (ECDSA) to the list of known hosts. 2019/12/03 02:27:01 fuzzer started 2019/12/03 02:27:02 dialing manager at 10.128.0.26:38907 2019/12/03 02:27:02 syscalls: 2697 2019/12/03 02:27:02 code coverage: enabled 2019/12/03 02:27:02 comparison tracing: enabled 2019/12/03 02:27:02 extra coverage: extra coverage is not supported by the kernel 2019/12/03 02:27:02 setuid sandbox: enabled 2019/12/03 02:27:02 namespace sandbox: enabled 2019/12/03 02:27:02 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 02:27:02 fault injection: enabled 2019/12/03 02:27:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 02:27:02 net packet injection: enabled 2019/12/03 02:27:02 net device setup: enabled 2019/12/03 02:27:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 02:27:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:27:03 executing program 0: bpf$BPF_PROG_DETACH(0x9, &(0x7f0000000000)={0x0, 0xffffffffffffffff, 0xe}, 0x10) 02:27:04 executing program 1: sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0xfffffffffffffc6e, &(0x7f0000000340)}, 0x0) r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000200)='/group.sta\x9f\xd4t\x00+\x04J{\t\xab\v\x02t\xe1\t\x85\xa6\xfa\x15\xb3[\xa6\x94!\xf2\x04\xde\xc5f\x8a\x06\x00\x00\x00\xb9\x0f\xf8`\xe0\x1f&+\xaf\xacu\nm\\\xe2Y\xcba\xea\f\xd9DXX>\xef/\xc5\x97\xea\x93\xa7\xde\xc9\xb4\x16\x8eF\x8b\xe0Wm\x1d\x0e\xbf\x8b\xc4G\x8f\x8e\xd8[T|i$\x88\x04\x00\x00\x00\x00\x00\x00\x00\x90\x1eB\x8b\x98\xad\xd17_Q\xe15\x84\x8f\xea\x98\xc6\xe3WE\x11\xe0\xc6\x1f\xf2/\xf6\x1f', 0x2761, 0x0) ioctl$PERF_EVENT_IOC_PERIOD(r1, 0x4030582a, &(0x7f0000000000)) openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000200)='/group.sta\x9f\xd4t\x00+\x04J{\t\xab\v\x02t\xe1\t\x85\xa6\xfa\x15\xb3[\xa6\x94!\xf2\x04\xde\xc5f\x8a\x06\x00\x00\x00\xb9\x0f\xf8`\xe0\x1f&+\xaf\xacu\nm\\\xe2Y\xcba\xea\f\xd9DXX>\xef/\xc5\x97\xea\x93\xa7\xde\xc9\xb4\x16\x8eF\x8b\xe0Wm\x1d\x0e\xbf\x8b\xc4G\x8f\x8e\xd8[T|i$\x88\x04\x00\x00\x00\x00\x00\x00\x00\x90\x1eB\x8b\x98\xad\xd17_Q\xe15\x84\x8f\xea\x98\xc6\xe3WE\x11\xe0\xc6\x1f\xf2/\xf6\x1f', 0x275c, 0x0) syzkaller login: [ 54.326465][ T8126] IPVS: ftp: loaded support on port[0] = 21 [ 54.497195][ T8126] chnl_net:caif_netlink_parms(): no params data found 02:27:04 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = socket$netlink(0x10, 0x3, 0x0) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r3, &(0x7f0000000000)={0xa, 0x0, 0x0, @mcast2, 0x4}, 0x1c) setsockopt$inet_msfilter(r3, 0x0, 0x21, &(0x7f0000000100)={@multicast2, @loopback}, 0x10) [ 54.537802][ T8129] IPVS: ftp: loaded support on port[0] = 21 [ 54.568539][ T8126] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.577259][ T8126] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.586433][ T8126] device bridge_slave_0 entered promiscuous mode [ 54.599670][ T8126] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.606736][ T8126] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.633671][ T8126] device bridge_slave_1 entered promiscuous mode [ 54.670857][ T8126] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.702281][ T8126] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.747494][ T8126] team0: Port device team_slave_0 added [ 54.764560][ T8126] team0: Port device team_slave_1 added [ 54.775484][ T8131] IPVS: ftp: loaded support on port[0] = 21 02:27:04 executing program 3: r0 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD(r0, 0x84, 0x6b, &(0x7f0000000000)=[@in6={0xa, 0x0, 0x0, @loopback={0x10000120, 0x3cec11fffe4fef91}}], 0x1c) shutdown(r0, 0x2) r1 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r1, 0x84, 0x1d, &(0x7f000095dff8)={0x1, [0x0]}, &(0x7f000095dffc)=0x313) getsockopt$inet_sctp6_SCTP_ASSOCINFO(r0, 0x84, 0x11, &(0x7f0000000040)={r2}, &(0x7f0000000080)=0x14) [ 54.872644][ T8126] device hsr_slave_0 entered promiscuous mode [ 54.930129][ T8126] device hsr_slave_1 entered promiscuous mode 02:27:04 executing program 4: r0 = socket$inet6(0xa, 0x1, 0x0) setsockopt$inet6_opts(r0, 0x29, 0x39, &(0x7f0000000000)=@routing={0x0, 0x2, 0x4, 0x0, 0x0, [@mcast2]}, 0x18) connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @remote, 0x10}, 0x1c) [ 55.051347][ T8133] IPVS: ftp: loaded support on port[0] = 21 [ 55.062451][ T8129] chnl_net:caif_netlink_parms(): no params data found [ 55.075184][ T8126] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.147096][ T8126] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.220692][ T8126] netdevsim netdevsim0 netdevsim2: renamed from eth2 02:27:04 executing program 5: r0 = syz_open_dev$vbi(&(0x7f0000000300)='/dev/vbi#\x00', 0x0, 0x2) ioctl$VIDIOC_DQBUF(r0, 0xc0585611, &(0x7f00000004c0)={0x0, 0xc, 0x4, 0x0, {0x0, 0x2710}, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, "14527862"}, 0x0, 0x0, @planes=0x0, 0x4}) [ 55.273318][ T8126] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.372515][ T8129] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.382550][ T8129] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.391379][ T8129] device bridge_slave_0 entered promiscuous mode [ 55.407471][ T8136] IPVS: ftp: loaded support on port[0] = 21 [ 55.438394][ T8129] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.447050][ T8129] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.454730][ T8129] device bridge_slave_1 entered promiscuous mode [ 55.501204][ T8131] chnl_net:caif_netlink_parms(): no params data found [ 55.535574][ T8129] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.547719][ T8126] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.554873][ T8126] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.562601][ T8126] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.564268][ T8139] IPVS: ftp: loaded support on port[0] = 21 [ 55.569714][ T8126] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.605183][ T2833] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.613996][ T2833] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.629533][ T8129] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.687020][ T8129] team0: Port device team_slave_0 added [ 55.695931][ T8129] team0: Port device team_slave_1 added [ 55.708697][ T8131] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.716647][ T8131] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.725277][ T8131] device bridge_slave_0 entered promiscuous mode [ 55.735516][ T8131] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.742687][ T8131] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.750754][ T8131] device bridge_slave_1 entered promiscuous mode [ 55.759717][ T8133] chnl_net:caif_netlink_parms(): no params data found [ 55.801237][ T8131] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.840272][ T8131] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.921831][ T8129] device hsr_slave_0 entered promiscuous mode [ 55.969362][ T8129] device hsr_slave_1 entered promiscuous mode [ 56.019045][ T8129] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.035109][ T8131] team0: Port device team_slave_0 added [ 56.043773][ T8131] team0: Port device team_slave_1 added [ 56.056964][ T8136] chnl_net:caif_netlink_parms(): no params data found [ 56.076938][ T8133] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.084148][ T8133] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.092205][ T8133] device bridge_slave_0 entered promiscuous mode [ 56.151713][ T8131] device hsr_slave_0 entered promiscuous mode [ 56.199229][ T8131] device hsr_slave_1 entered promiscuous mode [ 56.239110][ T8131] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.251155][ T8133] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.258207][ T8133] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.265930][ T8133] device bridge_slave_1 entered promiscuous mode [ 56.280449][ T8139] chnl_net:caif_netlink_parms(): no params data found [ 56.294783][ T8133] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.335504][ T8131] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 56.364177][ T8131] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.422268][ T8133] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.444714][ T8126] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.457912][ T8131] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 56.498228][ T8131] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 56.553441][ T8133] team0: Port device team_slave_0 added [ 56.564839][ T8133] team0: Port device team_slave_1 added [ 56.602241][ T8136] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.609458][ T8136] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.617113][ T8136] device bridge_slave_0 entered promiscuous mode [ 56.624466][ T8139] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.632268][ T8139] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.640502][ T8139] device bridge_slave_0 entered promiscuous mode [ 56.648142][ T8139] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.655998][ T8139] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.663969][ T8139] device bridge_slave_1 entered promiscuous mode [ 56.671303][ T8129] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 56.706737][ T8131] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.713876][ T8131] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.721199][ T8131] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.728228][ T8131] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.738215][ T8136] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.745355][ T8136] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.753337][ T8136] device bridge_slave_1 entered promiscuous mode [ 56.761400][ T44] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.770581][ T44] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.791994][ T8126] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.799303][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.807497][ T2707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.815670][ T8129] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 56.920566][ T8133] device hsr_slave_0 entered promiscuous mode [ 56.959156][ T8133] device hsr_slave_1 entered promiscuous mode [ 56.999002][ T8133] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.021567][ T8129] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.081287][ T8129] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.123022][ T8139] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.137158][ T8136] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.150832][ T8136] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.166989][ T8139] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.188729][ T8139] team0: Port device team_slave_0 added [ 57.205384][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.214298][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.222703][ T8141] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.229766][ T8141] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.237198][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.246452][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.255009][ T8141] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.262102][ T8141] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.281926][ T8139] team0: Port device team_slave_1 added [ 57.302757][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.314391][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.323247][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.331970][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.341887][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.349616][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.357942][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.410819][ T8139] device hsr_slave_0 entered promiscuous mode [ 57.470207][ T8139] device hsr_slave_1 entered promiscuous mode [ 57.509076][ T8139] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.518230][ T8136] team0: Port device team_slave_0 added [ 57.533649][ T8126] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.545934][ T8126] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.565583][ T2833] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.573853][ T2833] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.582995][ T2833] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.591384][ T2833] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.600356][ T2833] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.612707][ T8136] team0: Port device team_slave_1 added [ 57.618450][ T8133] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 57.660771][ T8133] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 57.700534][ T8133] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 57.754773][ T8133] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 57.875275][ T8131] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.883037][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.890832][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.951645][ T8136] device hsr_slave_0 entered promiscuous mode [ 58.019457][ T8136] device hsr_slave_1 entered promiscuous mode [ 58.068956][ T8136] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.083045][ T8126] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.107732][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.115801][ T8141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.124640][ T8131] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.136845][ T8139] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 58.191229][ T8139] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 163.268852][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 163.275858][ C1] (detected by 1, t=10502 jiffies, g=6097, q=232) [ 163.282346][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953479-4294942976), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 163.295683][ C1] syz-executor.4 R running task 24952 8136 8135 0x0000400a [ 163.303567][ C1] Call Trace: [ 163.306837][ C1] [ 163.309688][ C1] sched_show_task+0x40f/0x560 [ 163.314446][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 163.319722][ C1] update_process_times+0x12d/0x180 [ 163.324910][ C1] tick_sched_timer+0x263/0x420 [ 163.329746][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 163.335276][ C1] __hrtimer_run_queues+0x403/0x840 [ 163.340473][ C1] hrtimer_interrupt+0x38c/0xda0 [ 163.345413][ C1] ? debug_smp_processor_id+0x9/0x20 [ 163.350688][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 163.356217][ C1] apic_timer_interrupt+0xf/0x20 [ 163.361134][ C1] [ 163.364061][ C1] RIP: 0010:__memcg_kmem_uncharge+0x213/0x2e0 [ 163.370113][ C1] Code: a4 ff 48 c7 c7 98 4b 0d 89 e8 59 97 00 00 bf 01 00 00 00 e8 2f e3 9b ff 65 8b 05 d4 fd 4a 7e 85 c0 74 53 48 83 c4 08 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 49 8d 5f 10 48 89 df be 08 00 00 00 e8 04 [ 163.389700][ C1] RSP: 0018:ffffc900023b6f90 EFLAGS: 00000292 ORIG_RAX: ffffffffffffff13 [ 163.398094][ C1] RAX: 0000000000000001 RBX: ffffea0002523800 RCX: 0000000000000000 [ 163.406050][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002523800 [ 163.414008][ C1] RBP: ffffc900023b6fa8 R08: dffffc0000000000 R09: fffffbfff120248a [ 163.421963][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880951d7da0 [ 163.429922][ C1] R13: 1ffffd40004a4707 R14: ffffea0002523838 R15: 0000000000000000 [ 163.437899][ C1] free_thread_stack+0x12e/0x590 [ 163.442826][ C1] put_task_stack+0xa3/0x130 [ 163.447408][ C1] finish_task_switch+0x3f1/0x550 [ 163.452425][ C1] __schedule+0x9a8/0xcc0 [ 163.456749][ C1] ? ___preempt_schedule+0x16/0x18 [ 163.461850][ C1] preempt_schedule+0xdb/0x120 [ 163.466598][ C1] ___preempt_schedule+0x16/0x18 [ 163.471521][ C1] _raw_spin_unlock+0x3a/0x40 [ 163.476180][ C1] __register_sysctl_table+0x11d5/0x1290 [ 163.481810][ C1] register_net_sysctl+0x2c/0x40 [ 163.486760][ C1] __addrconf_sysctl_register+0x24f/0x390 [ 163.492483][ C1] addrconf_sysctl_register+0x141/0x1a0 [ 163.498020][ C1] ipv6_add_dev+0xad5/0x14a0 [ 163.502618][ C1] addrconf_notify+0x6bc/0x3c90 [ 163.507468][ C1] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 163.512745][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 163.518109][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 163.523641][ C1] ? trace_hardirqs_on+0x74/0x80 [ 163.528565][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 163.533926][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 163.539453][ C1] ? tls_dev_event+0x619/0xc00 [ 163.544201][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 163.549734][ C1] ? ip6mr_device_event+0x1ee/0x210 [ 163.554926][ C1] raw_notifier_call_chain+0xec/0x190 [ 163.560288][ C1] register_netdevice+0x1339/0x1830 [ 163.565486][ C1] nsim_create+0x1d4/0x230 [ 163.569887][ C1] __nsim_dev_port_add+0x289/0x4d0 [ 163.574984][ C1] ? debugfs_create_file_unsafe+0x4a/0x60 [ 163.580692][ C1] ? nsim_bpf_dev_init+0x1eb/0x220 [ 163.585792][ C1] nsim_dev_probe+0xb55/0xef0 [ 163.590490][ C1] nsim_bus_probe+0x15/0x20 [ 163.594989][ C1] really_probe+0x71c/0xf40 [ 163.599489][ C1] driver_probe_device+0xfc/0x260 [ 163.604499][ C1] ? parse_option_str+0x1bf/0x200 [ 163.609515][ C1] __device_attach_driver+0x336/0x3f0 [ 163.614883][ C1] ? coredump_store+0x90/0x90 [ 163.619554][ C1] bus_for_each_drv+0x12b/0x180 [ 163.624408][ C1] __device_attach+0x1ea/0x390 [ 163.629164][ C1] device_initial_probe+0x1a/0x20 [ 163.634173][ C1] bus_probe_device+0xb9/0x1f0 [ 163.638922][ C1] device_add+0x1710/0x1ad0 [ 163.643431][ C1] device_register+0x1d/0x20 [ 163.648023][ C1] new_device_store+0x286/0x510 [ 163.652873][ C1] ? nsim_num_vf+0x50/0x50 [ 163.657278][ C1] bus_attr_store+0x78/0x90 [ 163.661781][ C1] ? bus_attr_show+0x90/0x90 [ 163.666369][ C1] sysfs_kf_write+0x281/0x2f0 [ 163.671032][ C1] ? sysfs_kf_read+0x370/0x370 [ 163.675782][ C1] kernfs_fop_write+0x3e4/0x4e0 [ 163.680628][ C1] ? kernfs_fop_read+0x580/0x580 [ 163.685557][ C1] __vfs_write+0xb8/0x740 [ 163.689883][ C1] ? rcu_read_lock_any_held+0x13d/0x1a0 [ 163.695417][ C1] ? __sb_start_write+0x382/0x430 [ 163.700434][ C1] vfs_write+0x275/0x590 [ 163.704673][ C1] ksys_write+0x117/0x220 [ 163.708997][ C1] __x64_sys_write+0x7b/0x90 [ 163.713575][ C1] do_syscall_64+0xf7/0x1c0 [ 163.718081][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.723958][ C1] RIP: 0033:0x414130 [ 163.727842][ C1] Code: b0 89 c8 f7 d8 eb ed b8 6e 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83 3d 3d 43 66 00 00 75 14 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 c4 1b 00 00 c3 48 83 ec 08 e8 ca fc ff ff [ 163.747427][ C1] RSP: 002b:00007ffd173d9528 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 163.755845][ C1] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000414130 [ 163.763802][ C1] RDX: 0000000000000003 RSI: 00007ffd173d9550 RDI: 0000000000000004 [ 163.771755][ C1] RBP: 00007ffd173d9550 R08: 0000000000000000 R09: 0000000000000003 [ 163.779711][ C1] R10: 0000000000000075 R11: 0000000000000246 R12: 00000000004bfc97 [ 163.787685][ C1] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 163.795662][ C1] rcu: rcu_preempt kthread starved for 10554 jiffies! g6097 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 163.806742][ C1] rcu: RCU grace-period kthread stack dump: [ 163.812618][ C1] rcu_preempt R running task 28992 10 2 0x80004000 [ 163.820502][ C1] Call Trace: [ 163.823784][ C1] __schedule+0x9a0/0xcc0 [ 163.828106][ C1] schedule+0x181/0x210 [ 163.832375][ C1] schedule_timeout+0x14f/0x240 [ 163.837229][ C1] ? run_local_timers+0x120/0x120 [ 163.842249][ C1] rcu_gp_kthread+0xed8/0x1770 [ 163.847006][ C1] kthread+0x332/0x350 [ 163.851059][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 163.856155][ C1] ? kthread_blkcg+0xe0/0xe0 [ 163.860734][ C1] ret_from_fork+0x24/0x30