[ 44.808999][ T23] audit: type=1800 audit(1575357842.882:25): pid=8108 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.837188][ T23] audit: type=1800 audit(1575357842.882:26): pid=8108 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.891401][ T23] audit: type=1800 audit(1575357842.882:27): pid=8108 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.926167][ T23] audit: type=1800 audit(1575357842.892:28): pid=8108 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.1' (ECDSA) to the list of known hosts. 2019/12/03 07:24:13 fuzzer started 2019/12/03 07:24:15 dialing manager at 10.128.0.26:38907 2019/12/03 07:24:15 syscalls: 2697 2019/12/03 07:24:15 code coverage: enabled 2019/12/03 07:24:15 comparison tracing: enabled 2019/12/03 07:24:15 extra coverage: extra coverage is not supported by the kernel 2019/12/03 07:24:15 setuid sandbox: enabled 2019/12/03 07:24:15 namespace sandbox: enabled 2019/12/03 07:24:15 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 07:24:15 fault injection: enabled 2019/12/03 07:24:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 07:24:15 net packet injection: enabled 2019/12/03 07:24:15 net device setup: enabled 2019/12/03 07:24:15 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 07:24:15 devlink PCI setup: PCI device 0000:00:10.0 is not available 07:24:16 executing program 0: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000000000)={0x2, 0x4, 0x4, 0x1, 0x0, 0x1}, 0x3c) bpf$BPF_MAP_FREEZE(0x16, &(0x7f0000000040)=r0, 0x4) mmap(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x3, 0x11, r0, 0x0) 07:24:16 executing program 1: sendmsg$nl_netfilter(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={0x0}}, 0x0) writev(0xffffffffffffffff, &(0x7f0000000080)=[{&(0x7f00000000c0)="390000001000090468fe07002b0000000100ff0714000000450001070300001419001a00", 0x24}], 0x1) r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000000)={0x4}, 0x10) write(0xffffffffffffffff, &(0x7f00000000c0)="240000001e005f0214fffffffffffff807000000", 0x14) sendmmsg$alg(r0, &(0x7f0000000140), 0xcc, 0x0) syzkaller login: [ 58.585519][ T8270] IPVS: ftp: loaded support on port[0] = 21 [ 58.742503][ T8270] chnl_net:caif_netlink_parms(): no params data found [ 58.785198][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.794646][ T8270] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.803260][ T8270] device bridge_slave_0 entered promiscuous mode [ 58.814052][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.821670][ T8270] bridge0: port 2(bridge_slave_1) entered disabled state 07:24:16 executing program 2: socket$netlink(0x10, 0x3, 0x0) setsockopt$inet6_mreq(0xffffffffffffffff, 0x29, 0x0, 0x0, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f00000002c0)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup2(r1, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x416, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x15, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r4 = perf_event_open(&(0x7f0000000140)={0x2, 0x70, 0x416, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) dup2(r3, r4) [ 58.831044][ T8270] device bridge_slave_1 entered promiscuous mode [ 58.852022][ T8274] IPVS: ftp: loaded support on port[0] = 21 [ 58.860076][ T8270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.874070][ T8270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.900146][ T8270] team0: Port device team_slave_0 added [ 58.910303][ T8270] team0: Port device team_slave_1 added [ 58.990969][ T8270] device hsr_slave_0 entered promiscuous mode 07:24:17 executing program 3: unshare(0x600) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$inet(0x2, 0x2000080001, 0x84) getsockopt$inet_sctp_SCTP_GET_PEER_ADDRS(r3, 0x84, 0x10, &(0x7f0000000100), &(0x7f0000000180)=0x20000108) [ 59.048299][ T8270] device hsr_slave_1 entered promiscuous mode [ 59.106937][ T8276] IPVS: ftp: loaded support on port[0] = 21 [ 59.239241][ T8270] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.269128][ T8270] netdevsim netdevsim0 netdevsim1: renamed from eth1 07:24:17 executing program 4: r0 = socket(0x40000000015, 0x5, 0x0) connect$inet(r0, &(0x7f0000000000)={0x2, 0x0, @loopback}, 0x10) bind$inet(r0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = fcntl$dupfd(r1, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) sendmsg$netlink(r0, &(0x7f0000000b40)={0x0, 0x0, 0x0, 0x0, &(0x7f0000000a40)=[@cred={{0x1c, 0x114, 0x3}}], 0x20}, 0x0) [ 59.319956][ T8270] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 59.382934][ T8278] IPVS: ftp: loaded support on port[0] = 21 [ 59.428850][ T8270] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.526748][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.533932][ T8270] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.541760][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.548846][ T8270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.591793][ T8274] chnl_net:caif_netlink_parms(): no params data found [ 59.604840][ T8281] IPVS: ftp: loaded support on port[0] = 21 07:24:17 executing program 5: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25SFACILITIES(r0, 0x89e7, 0x0) [ 59.704448][ T8274] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.712621][ T8274] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.720900][ T8274] device bridge_slave_0 entered promiscuous mode [ 59.731110][ T8276] chnl_net:caif_netlink_parms(): no params data found [ 59.761481][ T8274] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.788294][ T8274] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.795979][ T8274] device bridge_slave_1 entered promiscuous mode [ 59.830070][ T3408] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.850436][ T3408] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.875486][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.882933][ T8276] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.890596][ T8276] device bridge_slave_0 entered promiscuous mode [ 59.906577][ T8274] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.919899][ T8274] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.930593][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.938125][ T8276] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.945666][ T8276] device bridge_slave_1 entered promiscuous mode [ 59.959595][ T8285] IPVS: ftp: loaded support on port[0] = 21 [ 60.011108][ T8274] team0: Port device team_slave_0 added [ 60.037376][ T8276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.066191][ T8270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.075134][ T8274] team0: Port device team_slave_1 added [ 60.089242][ T8276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.103228][ T8278] chnl_net:caif_netlink_parms(): no params data found [ 60.133159][ T8276] team0: Port device team_slave_0 added [ 60.190230][ T8274] device hsr_slave_0 entered promiscuous mode [ 60.247447][ T8274] device hsr_slave_1 entered promiscuous mode [ 60.287208][ T8274] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.303653][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.311934][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.328807][ T8276] team0: Port device team_slave_1 added [ 60.347332][ T8278] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.354478][ T8278] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.363821][ T8278] device bridge_slave_0 entered promiscuous mode [ 60.382307][ T8270] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.400955][ T8278] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.408296][ T8278] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.415924][ T8278] device bridge_slave_1 entered promiscuous mode [ 60.465231][ T3408] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.474024][ T3408] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.482517][ T3408] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.489621][ T3408] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.498726][ T8278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.539737][ T8276] device hsr_slave_0 entered promiscuous mode [ 60.577542][ T8276] device hsr_slave_1 entered promiscuous mode [ 60.617399][ T8276] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.644775][ T3403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.654280][ T3403] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.662796][ T3403] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.669885][ T3403] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.678991][ T3403] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.687770][ T3403] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.697365][ T8278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.733962][ T8274] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.791047][ T8274] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.839191][ T8274] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.912290][ T8281] chnl_net:caif_netlink_parms(): no params data found [ 60.930533][ T8274] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.979238][ T8285] chnl_net:caif_netlink_parms(): no params data found [ 60.990578][ T8278] team0: Port device team_slave_0 added [ 61.006173][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.016157][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.024619][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.033174][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.041601][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.049884][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.058619][ T2705] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.070999][ T8278] team0: Port device team_slave_1 added [ 61.103430][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.112002][ T48] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.122034][ T8270] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.168986][ T8276] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.210444][ T8281] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.220524][ T8281] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.228714][ T8281] device bridge_slave_0 entered promiscuous mode [ 61.236217][ T8285] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.244556][ T8285] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.252959][ T8285] device bridge_slave_0 entered promiscuous mode [ 61.264852][ T8285] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.272576][ T8285] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.281405][ T8285] device bridge_slave_1 entered promiscuous mode [ 61.297635][ T8270] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.304708][ T8276] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.351391][ T8276] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.409049][ T8281] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.416149][ T8281] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.424388][ T8281] device bridge_slave_1 entered promiscuous mode [ 61.469764][ T8278] device hsr_slave_0 entered promiscuous mode [ 61.507810][ T8278] device hsr_slave_1 entered promiscuous mode [ 61.547493][ T8278] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.560153][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.567974][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.588777][ T8285] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.599305][ T8276] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.670921][ T8281] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.684024][ T8281] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.695185][ T8285] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.726341][ T8285] team0: Port device team_slave_0 added [ 61.765320][ T8281] team0: Port device team_slave_0 added [ 61.783220][ T8285] team0: Port device team_slave_1 added [ 61.799454][ T8278] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 61.830644][ T8281] team0: Port device team_slave_1 added [ 61.836569][ T8278] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.879247][ T8278] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 166.977032][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 166.983827][ C0] rcu: 0-...!: (10499 ticks this GP) idle=7c6/1/0x4000000000000002 softirq=10742/10742 fqs=5 [ 166.994950][ C0] (t=10500 jiffies g=6565 q=136) [ 166.999977][ C0] rcu: rcu_preempt kthread starved for 10488 jiffies! g6565 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.011342][ C0] rcu: RCU grace-period kthread stack dump: [ 167.017241][ C0] rcu_preempt R running task 28992 10 2 0x80004000 [ 167.025238][ C0] Call Trace: [ 167.028813][ C0] __schedule+0x9a0/0xcc0 [ 167.033196][ C0] schedule+0x181/0x210 [ 167.037455][ C0] schedule_timeout+0x14f/0x240 [ 167.042312][ C0] ? run_local_timers+0x120/0x120 [ 167.047337][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.052188][ C0] kthread+0x332/0x350 [ 167.056331][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.061523][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.066195][ C0] ret_from_fork+0x24/0x30 [ 167.070619][ C0] NMI backtrace for cpu 0 [ 167.075635][ C0] CPU: 0 PID: 90 Comm: kworker/u4:3 Not tainted 5.4.0-syzkaller #0 [ 167.083530][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.094360][ C0] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 167.101558][ C0] Call Trace: [ 167.104831][ C0] [ 167.107679][ C0] dump_stack+0x1fb/0x318 [ 167.112120][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.117064][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.123247][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 167.129767][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 167.136661][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 167.142595][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 167.147719][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 167.153080][ C0] ? trace_hardirqs_off+0x74/0x80 [ 167.158408][ C0] update_process_times+0x12d/0x180 [ 167.163611][ C0] tick_sched_timer+0x263/0x420 [ 167.169074][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 167.175512][ C0] __hrtimer_run_queues+0x403/0x840 [ 167.180988][ C0] hrtimer_interrupt+0x38c/0xda0 [ 167.186358][ C0] ? debug_smp_processor_id+0x9/0x20 [ 167.192445][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 167.198014][ C0] apic_timer_interrupt+0xf/0x20 [ 167.202938][ C0] [ 167.205885][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 167.212051][ C0] Code: 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 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 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 167.232268][ C0] RSP: 0018:ffffc900011d78d8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 167.240677][ C0] RAX: 1ffff11012504231 RBX: ffff888092821188 RCX: 0000000000000000 [ 167.248919][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002a3b840 [ 167.257947][ C0] RBP: ffffc900011d7910 R08: 000000000003a768 R09: fffffbfff120248a [ 167.266279][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff888092821220 [ 167.274596][ C0] R13: dffffc0000000000 R14: 1ffff11012504244 R15: ffff8880965cf8e8 [ 167.283456][ C0] ? free_thread_stack+0x12e/0x590 [ 167.288566][ C0] put_task_stack+0xa3/0x130 [ 167.293762][ C0] finish_task_switch+0x3f1/0x550 [ 167.298779][ C0] __schedule+0x9a8/0xcc0 [ 167.303278][ C0] ? ___preempt_schedule+0x16/0x18 [ 167.308377][ C0] preempt_schedule+0xdb/0x120 [ 167.313128][ C0] ___preempt_schedule+0x16/0x18 [ 167.318062][ C0] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 167.323681][ C0] __call_srcu+0x7ab/0xb00 [ 167.329063][ C0] __synchronize_srcu+0x1cf/0x260 [ 167.334073][ C0] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 167.339702][ C0] synchronize_srcu+0x2cb/0x2f0 [ 167.344550][ C0] fsnotify_mark_destroy_workfn+0xe5/0x2a0 [ 167.350344][ C0] ? rcu_read_lock_sched_held+0x10b/0x170 [ 167.356141][ C0] process_one_work+0x7ef/0x10d0 [ 167.361084][ C0] worker_thread+0xc01/0x1630 [ 167.365782][ C0] kthread+0x332/0x350 [ 167.370449][ C0] ? rcu_lock_release+0x30/0x30 [ 167.375460][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.380222][ C0] ret_from_fork+0x24/0x30