[ 43.175957][ T23] audit: type=1800 audit(1575360434.995:26): pid=8052 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.215679][ T23] audit: type=1800 audit(1575360435.005:27): pid=8052 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 43.236826][ T23] audit: type=1800 audit(1575360435.005:28): pid=8052 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. [ 44.077198][ T23] audit: type=1800 audit(1575360435.935:29): pid=8052 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 '10.128.0.102' (ECDSA) to the list of known hosts. 2019/12/03 08:07:26 fuzzer started 2019/12/03 08:07:28 dialing manager at 10.128.0.26:38907 2019/12/03 08:07:28 syscalls: 2697 2019/12/03 08:07:28 code coverage: enabled 2019/12/03 08:07:28 comparison tracing: enabled 2019/12/03 08:07:28 extra coverage: extra coverage is not supported by the kernel 2019/12/03 08:07:28 setuid sandbox: enabled 2019/12/03 08:07:28 namespace sandbox: enabled 2019/12/03 08:07:28 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 08:07:28 fault injection: enabled 2019/12/03 08:07:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 08:07:28 net packet injection: enabled 2019/12/03 08:07:28 net device setup: enabled 2019/12/03 08:07:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 08:07:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:07:29 executing program 0: r0 = socket$inet6(0xa, 0x200000000003, 0x87) connect$inet6(r0, &(0x7f00000002c0)={0xa, 0x0, 0x0, @dev, 0x6}, 0x1c) sendmsg(r0, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000080)=[{&(0x7f00000000c0)="b10b9386", 0x4}], 0x1}, 0x8000) sendmsg(r0, &(0x7f0000000400)={0x0, 0x0, &(0x7f0000000240)=[{&(0x7f0000000000)="8582cfb6", 0x4}], 0x1}, 0x0) 08:07:29 executing program 1: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000240)=@req3={0x10000, 0x100000001, 0x10000, 0x1}, 0x1c) setsockopt$packet_int(r0, 0x107, 0xc, &(0x7f0000000000), 0x4) syzkaller login: [ 58.074971][ T8215] IPVS: ftp: loaded support on port[0] = 21 08:07:30 executing program 2: r0 = memfd_create(&(0x7f0000000100)='/dev/auts\x00', 0x0) fallocate(r0, 0x11, 0x0, 0xffffffff000) [ 58.241059][ T8215] chnl_net:caif_netlink_parms(): no params data found [ 58.273342][ T8218] IPVS: ftp: loaded support on port[0] = 21 [ 58.348196][ T8215] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.355285][ T8215] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.377348][ T8215] device bridge_slave_0 entered promiscuous mode [ 58.396457][ T8215] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.403511][ T8215] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.427231][ T8215] device bridge_slave_1 entered promiscuous mode 08:07:30 executing program 3: r0 = socket$inet6(0xa, 0x2, 0x0) r1 = memfd_create(&(0x7f0000000340)='-B\xd5NI\xc5j\xbappp\xf0\b\x84\xa2m\x00:)\x00\xbb\x8d\xac\xacva}knh#\xcb)\x0f\xc8\xc0:\x9cc\x10d\xee\xa9\x8bCc\xad\x89\x9ck\xde\xc5\xe96\xddU\xa9=\xcdJx\xaa\x8f~\xb90a\xa9\xb2\x04K\x98\x93?\x88Q\xf7\xd6\x1d\xa1\xce\x8b\x19\xea\xef\xe3\xab\xb6\xa5$4\xd6\xfe7\x0f\xe7\xd9$\xce \xabN\xae\xc9\xbd\xd3g@\xe1\'s\x0e\x90\xf2\xcdr\xb8(', 0x0) write(r1, &(0x7f00000004c0)='1', 0x1) mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x4, 0x11, r1, 0x0) setsockopt$IP6T_SO_SET_ADD_COUNTERS(r0, 0x29, 0x41, &(0x7f00000002c0)={'filter\x00', 0x2, [{}, {}]}, 0x48) [ 58.489535][ T8215] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.500371][ T8220] IPVS: ftp: loaded support on port[0] = 21 [ 58.526901][ T8215] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.619249][ T8215] team0: Port device team_slave_0 added [ 58.642925][ T8218] chnl_net:caif_netlink_parms(): no params data found [ 58.660235][ T8215] team0: Port device team_slave_1 added [ 58.740718][ T8218] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.757271][ T8218] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.776000][ T8218] device bridge_slave_0 entered promiscuous mode 08:07:30 executing program 4: unshare(0x600) r0 = socket$unix(0x1, 0x1, 0x0) r1 = socket$unix(0x1, 0x1, 0x0) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = memfd_create(&(0x7f0000000200)='eth0\x00', 0x0) write(r3, &(0x7f0000000040)="06", 0x1) mmap(&(0x7f0000000000/0x7000)=nil, 0x7000, 0x80000000004, 0x11, r3, 0x0) utimes(0x0, &(0x7f0000000140)={{0x0, 0x2710}, {0x77359400}}) r4 = socket$inet_dccp(0x2, 0x6, 0x0) getsockopt$inet_int(r4, 0x10d, 0xe0, 0x0, &(0x7f0000000000)) [ 58.808413][ T8215] device hsr_slave_0 entered promiscuous mode [ 58.845930][ T8215] device hsr_slave_1 entered promiscuous mode [ 58.962727][ T8218] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.985753][ T8218] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.993445][ T8218] device bridge_slave_1 entered promiscuous mode [ 59.027323][ T8226] IPVS: ftp: loaded support on port[0] = 21 [ 59.053622][ T8224] IPVS: ftp: loaded support on port[0] = 21 [ 59.063495][ T8220] chnl_net:caif_netlink_parms(): no params data found 08:07:30 executing program 5: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) bind$inet6(r0, &(0x7f0000ef8cfd)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) listen(r0, 0x4) r1 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp6_SCTP_MAX_BURST(r1, 0x84, 0x14, &(0x7f0000000000), 0x4) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX_OLD(r1, 0x84, 0x6b, &(0x7f000055bfe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) [ 59.096637][ T8215] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.139625][ T8215] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.211540][ T8215] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.268971][ T8218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.280808][ T8218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.309970][ T8215] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.400138][ T8218] team0: Port device team_slave_0 added [ 59.409155][ T8218] team0: Port device team_slave_1 added [ 59.427077][ T8228] IPVS: ftp: loaded support on port[0] = 21 [ 59.472887][ T8220] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.480146][ T8220] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.488955][ T8220] device bridge_slave_0 entered promiscuous mode [ 59.501503][ T8220] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.508793][ T8220] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.516682][ T8220] device bridge_slave_1 entered promiscuous mode [ 59.568227][ T8218] device hsr_slave_0 entered promiscuous mode [ 59.625996][ T8218] device hsr_slave_1 entered promiscuous mode [ 59.685782][ T8218] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.738803][ T8220] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.749892][ T8220] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.791782][ T8220] team0: Port device team_slave_0 added [ 59.824117][ T8220] team0: Port device team_slave_1 added [ 59.850717][ T8215] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.871686][ T8224] chnl_net:caif_netlink_parms(): no params data found [ 59.918488][ T8220] device hsr_slave_0 entered promiscuous mode [ 59.955987][ T8220] device hsr_slave_1 entered promiscuous mode [ 60.005777][ T8220] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.047962][ T8215] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.054755][ T8218] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.088374][ T8218] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.157817][ T8218] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.221286][ T8218] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.271728][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.280255][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.292182][ T8226] chnl_net:caif_netlink_parms(): no params data found [ 60.339857][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.348532][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.357496][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.364675][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.394606][ T8228] chnl_net:caif_netlink_parms(): no params data found [ 60.405702][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.413805][ T8224] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.423469][ T8224] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.432055][ T8224] device bridge_slave_0 entered promiscuous mode [ 60.460936][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.470066][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.478824][ T8232] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.485925][ T8232] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.493936][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.517892][ T8220] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 60.548327][ T8224] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.555395][ T8224] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.563496][ T8224] device bridge_slave_1 entered promiscuous mode [ 60.591490][ T8226] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.600700][ T8226] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.609189][ T8226] device bridge_slave_0 entered promiscuous mode [ 60.617493][ T8220] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 60.667779][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.684743][ T8215] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.695712][ T8215] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.727075][ T8226] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.734155][ T8226] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.742988][ T8226] device bridge_slave_1 entered promiscuous mode [ 60.750209][ T8220] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 60.807023][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.815806][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.824044][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.832575][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.840857][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.849125][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.857900][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.866272][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.874476][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.882281][ T3836] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.891525][ T8224] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.909119][ T8228] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.916671][ T8228] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.924217][ T8228] device bridge_slave_0 entered promiscuous mode [ 60.933022][ T8228] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.940454][ T8228] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.948278][ T8228] device bridge_slave_1 entered promiscuous mode [ 60.969242][ T8220] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.019617][ T8224] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.035148][ T8228] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.047396][ T8228] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.066552][ T8226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.082100][ T8218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.104383][ T8226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.126523][ T8226] team0: Port device team_slave_0 added [ 61.134268][ T8226] team0: Port device team_slave_1 added [ 61.146521][ T8224] team0: Port device team_slave_0 added [ 61.153514][ T8228] team0: Port device team_slave_0 added [ 61.171331][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.179028][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.187528][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.195109][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.211305][ T8224] team0: Port device team_slave_1 added [ 61.227449][ T8228] team0: Port device team_slave_1 added [ 61.234887][ T8218] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.299158][ T8226] device hsr_slave_0 entered promiscuous mode [ 61.346404][ T8226] device hsr_slave_1 entered promiscuous mode [ 61.395866][ T8226] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.406824][ T8215] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.432205][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.441863][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.450329][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.457446][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.465309][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.474461][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.482845][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.489919][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.558566][ T8228] device hsr_slave_0 entered promiscuous mode [ 61.616101][ T8228] device hsr_slave_1 entered promiscuous mode [ 61.665778][ T8228] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.683171][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 61.691439][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.700010][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.708924][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.718732][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.731269][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.809626][ T8224] device hsr_slave_0 entered promiscuous mode [ 61.877031][ T8224] device hsr_slave_1 entered promiscuous mode [ 61.935816][ T8224] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.957988][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.967101][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.009407][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.027080][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 167.025577][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.032354][ C1] rcu: 1-...!: (10499 ticks this GP) idle=ab2/1/0x4000000000000002 softirq=10697/10697 fqs=0 [ 167.042824][ C1] (t=10500 jiffies g=6381 q=47) [ 167.047750][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g6381 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.058835][ C1] rcu: RCU grace-period kthread stack dump: [ 167.064709][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.072593][ C1] Call Trace: [ 167.075881][ C1] __schedule+0x9a0/0xcc0 [ 167.080217][ C1] schedule+0x181/0x210 [ 167.084362][ C1] schedule_timeout+0x14f/0x240 [ 167.089197][ C1] ? run_local_timers+0x120/0x120 [ 167.094214][ C1] rcu_gp_kthread+0xed8/0x1770 [ 167.098972][ C1] kthread+0x332/0x350 [ 167.103027][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 167.108124][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.112702][ C1] ret_from_fork+0x24/0x30 [ 167.117120][ C1] NMI backtrace for cpu 1 [ 167.121438][ C1] CPU: 1 PID: 406 Comm: kworker/u4:5 Not tainted 5.4.0-syzkaller #0 [ 167.129410][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.139484][ C1] Workqueue: events_unbound fsnotify_connector_destroy_workfn [ 167.146933][ C1] Call Trace: [ 167.150222][ C1] [ 167.153095][ C1] dump_stack+0x1fb/0x318 [ 167.157900][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.163123][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.169387][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.175467][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.181580][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.187483][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.192878][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.198077][ C1] ? trace_hardirqs_off+0x74/0x80 [ 167.203096][ C1] update_process_times+0x12d/0x180 [ 167.208285][ C1] tick_sched_timer+0x263/0x420 [ 167.213173][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.218806][ C1] __hrtimer_run_queues+0x403/0x840 [ 167.224010][ C1] hrtimer_interrupt+0x38c/0xda0 [ 167.228969][ C1] ? debug_smp_processor_id+0x9/0x20 [ 167.234251][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 167.239823][ C1] apic_timer_interrupt+0xf/0x20 [ 167.244746][ C1] [ 167.247677][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 [ 167.253748][ C1] Code: 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 34 e7 cc 07 48 89 de e8 64 02 3b 00 5b 5d c3 cc 48 8b 04 24 <65> 48 8b 0c 25 c0 1d 02 00 65 8b 15 b8 81 8b 7e f7 c2 00 01 1f 00 [ 167.273433][ C1] RSP: 0018:ffffc900019778d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.281849][ C1] RAX: ffffffff81487326 RBX: ffffea0001b09d80 RCX: 0000000000000000 [ 167.289819][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b09d80 [ 167.297775][ C1] RBP: ffffc900019778f8 R08: dffffc0000000000 R09: fffffbfff120248a [ 167.305739][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880958a6320 [ 167.313781][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88808c1a56a8 [ 167.321751][ C1] ? mod_memcg_page_state+0x16/0x190 [ 167.327258][ C1] ? mod_memcg_page_state+0x16/0x190 [ 167.332667][ C1] free_thread_stack+0x168/0x590 [ 167.337613][ C1] put_task_stack+0xa3/0x130 [ 167.342211][ C1] finish_task_switch+0x3f1/0x550 [ 167.347244][ C1] __schedule+0x9a8/0xcc0 [ 167.351576][ C1] ? ___preempt_schedule+0x16/0x18 [ 167.356677][ C1] preempt_schedule+0xdb/0x120 [ 167.361430][ C1] ___preempt_schedule+0x16/0x18 [ 167.366359][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 167.372322][ C1] __call_srcu+0x7ab/0xb00 [ 167.376767][ C1] __synchronize_srcu+0x1cf/0x260 [ 167.381797][ C1] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 167.387430][ C1] synchronize_srcu+0x2cb/0x2f0 [ 167.392269][ C1] fsnotify_connector_destroy_workfn+0x44/0xb0 [ 167.398406][ C1] process_one_work+0x7ef/0x10d0 [ 167.403346][ C1] worker_thread+0xc01/0x1630 [ 167.408204][ C1] kthread+0x332/0x350 [ 167.412258][ C1] ? rcu_lock_release+0x30/0x30 [ 167.417095][ C1] ? kthread_blkcg+0xe0/0xe0 [ 167.421671][ C1] ret_from_fork+0x24/0x30