[ 44.108696][ T23] audit: type=1800 audit(1575341087.512:26): pid=8093 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.136786][ T23] audit: type=1800 audit(1575341087.522:27): pid=8093 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.136805][ T23] audit: type=1800 audit(1575341087.522:28): pid=8093 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. [ 44.858031][ T23] audit: type=1800 audit(1575341088.282:29): pid=8093 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 '10.128.0.121' (ECDSA) to the list of known hosts. 2019/12/03 02:44:55 fuzzer started 2019/12/03 02:44:57 dialing manager at 10.128.0.26:38907 2019/12/03 02:44:57 syscalls: 2697 2019/12/03 02:44:57 code coverage: enabled 2019/12/03 02:44:57 comparison tracing: enabled 2019/12/03 02:44:57 extra coverage: extra coverage is not supported by the kernel 2019/12/03 02:44:57 setuid sandbox: enabled 2019/12/03 02:44:57 namespace sandbox: enabled 2019/12/03 02:44:57 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 02:44:57 fault injection: enabled 2019/12/03 02:44:57 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 02:44:57 net packet injection: enabled 2019/12/03 02:44:57 net device setup: enabled 2019/12/03 02:44:57 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 02:44:57 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:44:58 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000380)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000080)=0xd) ioctl$TCSETA(r0, 0x5412, &(0x7f0000000040)) ioctl$FIONREAD(r0, 0x541b, &(0x7f0000000000)) 02:44:58 executing program 1: socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r0, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet6(0xa, 0x40000080806, 0x0) bind$inet6(r3, &(0x7f0000000040)={0xa, 0x200004e20}, 0x1c) listen(r3, 0x126) r4 = socket$inet6(0xa, 0x80006, 0x0) setsockopt$inet6_icmp_ICMP_FILTER(r4, 0x1, 0x1, &(0x7f0000000240)={0x9}, 0x109) connect$inet6(r4, &(0x7f0000000140)={0xa, 0x4e20, 0x0, @ipv4}, 0x1c) syzkaller login: [ 55.167011][ T8255] IPVS: ftp: loaded support on port[0] = 21 [ 55.333762][ T8255] chnl_net:caif_netlink_parms(): no params data found [ 55.394233][ T8258] IPVS: ftp: loaded support on port[0] = 21 [ 55.433128][ T8255] bridge0: port 1(bridge_slave_0) entered blocking state 02:44:58 executing program 2: r0 = socket$inet(0x2, 0x2, 0x0) setsockopt$sock_linger(r0, 0x1, 0xd, &(0x7f0000000040)={0x1}, 0x8) close(r0) [ 55.442398][ T8255] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.451163][ T8255] device bridge_slave_0 entered promiscuous mode [ 55.479650][ T8255] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.486858][ T8255] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.494931][ T8255] device bridge_slave_1 entered promiscuous mode [ 55.536423][ T8255] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.551725][ T8255] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.596337][ T8255] team0: Port device team_slave_0 added [ 55.646293][ T8255] team0: Port device team_slave_1 added [ 55.697929][ T8258] chnl_net:caif_netlink_parms(): no params data found [ 55.698502][ T8261] IPVS: ftp: loaded support on port[0] = 21 02:44:59 executing program 3: r0 = socket(0x10, 0x803, 0x0) sendmsg$nl_route(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000280)=@bridge_setlink={0x20, 0x13, 0x1}, 0x20}}, 0x0) [ 55.793276][ T8255] device hsr_slave_0 entered promiscuous mode [ 55.859114][ T8255] device hsr_slave_1 entered promiscuous mode 02:44:59 executing program 4: r0 = bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x8, 0xe, &(0x7f0000000540)=ANY=[@ANYBLOB="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"], &(0x7f0000000100)='GPL\x00'}, 0x48) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f0000000140)={r0, 0x0, 0x3a, 0x54f, &(0x7f00000003c0)="cee3f87a611a530000002a0d614fda67dd2705e05b6e936df2d351a17f48246fe83b3cebd949a245c017f328db52215aaf6e4a64d328e214bae711716a559144add52ae64a914357e9869463b77bffca1e06e571db2740b16e5b4f188de8cb064f5a02c60920dee9fab540ad160c6bde19863500"/128, 0x0, 0xf000, 0x0, 0xfe8a, 0xc2, &(0x7f0000000180)="5fa9dd69a821774ab0b30a771297c971af242a2a9b0c12f05a26f665bd237f536fd555e342738db819", &(0x7f0000000340)="24acc6be3a41d56b285214918624985a38dc58176e66e83d47e05eebc474c7148e7ed7c07495b7360e47513ec8ddf8e2b6ca985f6d67a5e3f0894ad2a9020ac0c9e9c9818a04913af7ae8edab6de3e83"}, 0x28) [ 55.996441][ T8263] IPVS: ftp: loaded support on port[0] = 21 [ 56.055808][ T8258] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.079556][ T8258] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.087992][ T8258] device bridge_slave_0 entered promiscuous mode [ 56.131422][ T8258] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.148741][ T8258] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.157031][ T8258] device bridge_slave_1 entered promiscuous mode [ 56.186352][ T8265] IPVS: ftp: loaded support on port[0] = 21 02:44:59 executing program 5: sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0) writev(0xffffffffffffffff, &(0x7f0000000080)=[{&(0x7f0000000000)="39000000130009006900000000000000eb00804806000000c60001070000001419001300010000000106000000000000000afc7193bf968554", 0x39}], 0x1) r0 = socket(0x10, 0x80002, 0x0) sendmmsg$alg(r0, &(0x7f0000000140)=[{0x0, 0x0, &(0x7f0000000100), 0x0, &(0x7f0000000100)}], 0x492492492492805, 0x0) [ 56.241701][ T8255] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.344565][ T8255] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.403794][ T8255] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.451751][ T8258] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.462147][ T8255] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.525321][ T8258] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.550705][ T8267] IPVS: ftp: loaded support on port[0] = 21 [ 56.585123][ T8261] chnl_net:caif_netlink_parms(): no params data found [ 56.652225][ T8258] team0: Port device team_slave_0 added [ 56.662748][ T8258] team0: Port device team_slave_1 added [ 56.694584][ T8263] chnl_net:caif_netlink_parms(): no params data found [ 56.712642][ T8261] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.721014][ T8261] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.730352][ T8261] device bridge_slave_0 entered promiscuous mode [ 56.811415][ T8258] device hsr_slave_0 entered promiscuous mode [ 56.859750][ T8258] device hsr_slave_1 entered promiscuous mode [ 56.889150][ T8258] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.897928][ T8261] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.905952][ T8261] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.915276][ T8261] device bridge_slave_1 entered promiscuous mode [ 56.936210][ T8265] chnl_net:caif_netlink_parms(): no params data found [ 56.965993][ T8261] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.004637][ T8261] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.031495][ T8263] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.039423][ T8263] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.047175][ T8263] device bridge_slave_0 entered promiscuous mode [ 57.056054][ T8265] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.063548][ T8265] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.071793][ T8265] device bridge_slave_0 entered promiscuous mode [ 57.081718][ T8265] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.091417][ T8265] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.101655][ T8265] device bridge_slave_1 entered promiscuous mode [ 57.129750][ T8263] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.142550][ T8263] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.154666][ T8263] device bridge_slave_1 entered promiscuous mode [ 57.174918][ T8261] team0: Port device team_slave_0 added [ 57.181895][ T8258] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.255121][ T8261] team0: Port device team_slave_1 added [ 57.277817][ T8265] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.288990][ T8258] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.321394][ T8263] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.335672][ T8263] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.400766][ T8261] device hsr_slave_0 entered promiscuous mode [ 57.449196][ T8261] device hsr_slave_1 entered promiscuous mode [ 57.498851][ T8261] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.509008][ T8265] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.520120][ T8258] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.608075][ T8258] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.696112][ T8265] team0: Port device team_slave_0 added [ 57.714440][ T8265] team0: Port device team_slave_1 added [ 57.722977][ T8263] team0: Port device team_slave_0 added [ 57.740593][ T8267] chnl_net:caif_netlink_parms(): no params data found [ 57.770580][ T8263] team0: Port device team_slave_1 added [ 57.792697][ T8255] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.811821][ T8261] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 57.913313][ T8263] device hsr_slave_0 entered promiscuous mode [ 57.949335][ T8263] device hsr_slave_1 entered promiscuous mode [ 58.008896][ T8263] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.030868][ T8261] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.103865][ T8261] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.165240][ T8261] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.261659][ T8265] device hsr_slave_0 entered promiscuous mode [ 58.279284][ T8265] device hsr_slave_1 entered promiscuous mode [ 58.329010][ T8265] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.337370][ T8267] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.345265][ T8267] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.354264][ T8267] device bridge_slave_0 entered promiscuous mode [ 58.364857][ T8267] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.372046][ T8267] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.380530][ T8267] device bridge_slave_1 entered promiscuous mode [ 58.392762][ T8268] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.404224][ T8268] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.416065][ T8255] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.445263][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.456786][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.467858][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.475750][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.527804][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.539304][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.547934][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.560596][ T8272] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.567707][ T8272] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.575820][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.586762][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.596513][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.606249][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.614794][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.623548][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.634733][ T8267] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.651895][ T8267] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.675564][ T8255] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 58.686907][ T8255] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.708404][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.717915][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.727496][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.738927][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.747425][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.775526][ T8263] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.821397][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.829343][ T8265] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 58.888285][ T8267] team0: Port device team_slave_0 added [ 58.896398][ T8267] team0: Port device team_slave_1 added [ 58.904364][ T8258] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.913591][ T8263] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 58.971313][ T8263] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.030994][ T8265] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.061357][ T8265] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.102399][ T8265] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.158291][ T8258] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.167131][ T8263] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.207692][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.215855][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.282531][ T8267] device hsr_slave_0 entered promiscuous mode [ 59.328997][ T8267] device hsr_slave_1 entered promiscuous mode [ 59.378828][ T8267] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.398466][ T8255] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.412052][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.421080][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.429834][ T8272] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.437006][ T8272] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.445261][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.453304][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.460788][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.469276][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.477523][ T8272] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.484956][ T8272] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.525307][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.535819][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.586275][ T8261] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.593990][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.615822][ T8267] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.671012][ T8267] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.713065][ T8267] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.771002][ T8267] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 164.798632][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 164.805418][ C1] rcu: 1-...!: (10499 ticks this GP) idle=682/1/0x4000000000000002 softirq=10261/10261 fqs=5 [ 164.815906][ C1] (t=10501 jiffies g=6565 q=130) [ 164.821011][ C1] rcu: rcu_preempt kthread starved for 10492 jiffies! g6565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 164.832108][ C1] rcu: RCU grace-period kthread stack dump: [ 164.837985][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 164.845880][ C1] Call Trace: [ 164.849178][ C1] __schedule+0x9a0/0xcc0 [ 164.853507][ C1] schedule+0x181/0x210 [ 164.857655][ C1] schedule_timeout+0x14f/0x240 [ 164.862513][ C1] ? run_local_timers+0x120/0x120 [ 164.867724][ C1] rcu_gp_kthread+0xed8/0x1770 [ 164.872498][ C1] kthread+0x332/0x350 [ 164.876558][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 164.882269][ C1] ? kthread_blkcg+0xe0/0xe0 [ 164.886849][ C1] ret_from_fork+0x24/0x30 [ 164.891965][ C1] NMI backtrace for cpu 1 [ 164.896290][ C1] CPU: 1 PID: 723 Comm: kworker/u4:6 Not tainted 5.4.0-syzkaller #0 [ 164.904264][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.914337][ C1] Workqueue: events_unbound fsnotify_connector_destroy_workfn [ 164.921787][ C1] Call Trace: [ 164.925074][ C1] [ 164.927922][ C1] dump_stack+0x1fb/0x318 [ 164.932243][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 164.937169][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 164.943309][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 164.949379][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 164.955353][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 164.962015][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 164.968074][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 164.973288][ C1] ? trace_hardirqs_off+0x74/0x80 [ 164.978824][ C1] update_process_times+0x12d/0x180 [ 164.984010][ C1] tick_sched_timer+0x263/0x420 [ 164.988851][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.994390][ C1] __hrtimer_run_queues+0x403/0x840 [ 164.999619][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.004653][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.009931][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.015480][ C1] apic_timer_interrupt+0xf/0x20 [ 165.020506][ C1] [ 165.025880][ C1] RIP: 0010:__memcg_kmem_uncharge+0x0/0x2e0 [ 165.031759][ C1] Code: 00 eb 1b 83 3d 40 90 8c 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 dc 7d ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 [ 165.051977][ C1] RSP: 0018:ffffc90003817900 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.060389][ C1] RAX: ffffffff81486ea4 RBX: ffffea000267f2c0 RCX: ffff8880a785e680 [ 165.068705][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000267f2c0 [ 165.077270][ C1] RBP: ffffc90003817940 R08: dffffc0000000000 R09: fffffbfff120248a [ 165.085924][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880988478a0 [ 165.093886][ C1] R13: dffffc0000000000 R14: 1ffff11013108f14 R15: ffff88809b3296a8 [ 165.101865][ C1] ? free_thread_stack+0x124/0x590 [ 165.107094][ C1] ? free_thread_stack+0x12e/0x590 [ 165.112204][ C1] put_task_stack+0xa3/0x130 [ 165.117045][ C1] finish_task_switch+0x3f1/0x550 [ 165.122069][ C1] __schedule+0x9a8/0xcc0 [ 165.126499][ C1] ? ___preempt_schedule+0x16/0x18 [ 165.131600][ C1] preempt_schedule+0xdb/0x120 [ 165.136354][ C1] ___preempt_schedule+0x16/0x18 [ 165.141302][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 165.147184][ C1] __call_srcu+0x7ab/0xb00 [ 165.151605][ C1] __synchronize_srcu+0x1cf/0x260 [ 165.156619][ C1] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 165.162334][ C1] synchronize_srcu+0x2cb/0x2f0 [ 165.167189][ C1] fsnotify_connector_destroy_workfn+0x44/0xb0 [ 165.173333][ C1] process_one_work+0x7ef/0x10d0 [ 165.178381][ C1] worker_thread+0xc01/0x1630 [ 165.183068][ C1] kthread+0x332/0x350 [ 165.187227][ C1] ? rcu_lock_release+0x30/0x30 [ 165.194500][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.199452][ C1] ret_from_fork+0x24/0x30