[ 39.983484][ T25] audit: type=1800 audit(1575461010.566:27): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.017999][ T25] audit: type=1800 audit(1575461010.586:28): pid=7852 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. [ 40.512945][ T25] audit: type=1800 audit(1575461011.156:29): pid=7852 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 40.532609][ T25] audit: type=1800 audit(1575461011.156:30): pid=7852 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 '10.128.15.208' (ECDSA) to the list of known hosts. 2019/12/04 12:03:39 fuzzer started 2019/12/04 12:03:40 dialing manager at 10.128.0.26:36481 2019/12/04 12:03:40 syscalls: 2691 2019/12/04 12:03:40 code coverage: enabled 2019/12/04 12:03:40 comparison tracing: enabled 2019/12/04 12:03:40 extra coverage: extra coverage is not supported by the kernel 2019/12/04 12:03:40 setuid sandbox: enabled 2019/12/04 12:03:40 namespace sandbox: enabled 2019/12/04 12:03:40 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 12:03:40 fault injection: enabled 2019/12/04 12:03:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 12:03:40 net packet injection: enabled 2019/12/04 12:03:40 net device setup: enabled 2019/12/04 12:03:40 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 12:03:40 devlink PCI setup: PCI device 0000:00:10.0 is not available 12:03:41 executing program 0: r0 = socket$inet6_sctp(0xa, 0x10000000005, 0x84) setsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX(r0, 0x84, 0x6e, &(0x7f0000961fe4)=[@in={0x2, 0x0, @dev}], 0x10) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x1d, &(0x7f00000001c0)=ANY=[@ANYBLOB="e5ffffff", @ANYRES32=0x0], &(0x7f00000000c0)=0xfe10) r2 = socket(0xa, 0x1, 0x0) close(r2) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r0, 0x84, 0x66, &(0x7f0000000040)={r1}, &(0x7f0000000140)=0x8) sendmmsg$inet_sctp(r2, &(0x7f0000002cc0)=[{0x0, 0x0, 0x0, 0x0, &(0x7f00000016c0)=[@sndinfo={0x20, 0x84, 0x2, {0x0, 0x4}}], 0x20}], 0x1, 0x0) getsockopt$inet_sctp6_SCTP_CONTEXT(r2, 0x84, 0x6, &(0x7f0000000440), &(0x7f0000000380)=0xff15) 12:03:41 executing program 1: r0 = socket(0x2, 0x1, 0x0) listen(r0, 0x0) r1 = socket$inet_tcp(0x2, 0x1, 0x0) listen(r1, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000040)='net/tcp\x00') r3 = socket(0x10, 0x3, 0x0) sendfile(r3, r2, &(0x7f0000000080)=0x12c, 0x100000000000033) syzkaller login: [ 51.037609][ T8019] IPVS: ftp: loaded support on port[0] = 21 [ 51.138991][ T8019] chnl_net:caif_netlink_parms(): no params data found [ 51.178160][ T8019] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.188119][ T8019] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.196220][ T8019] device bridge_slave_0 entered promiscuous mode [ 51.206329][ T8019] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.213790][ T8019] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.222638][ T8019] device bridge_slave_1 entered promiscuous mode [ 51.244560][ T8019] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.245138][ T8022] IPVS: ftp: loaded support on port[0] = 21 [ 51.259739][ T8019] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.283832][ T8019] team0: Port device team_slave_0 added 12:03:41 executing program 2: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket(0x22, 0x2, 0x4) bind$isdn_base(r0, &(0x7f0000000000), 0x6) r1 = openat$dlm_plock(0xffffffffffffff9c, &(0x7f0000000580)='/dev/dlm_plock\x00', 0x4000, 0x0) getsockopt$inet6_IPV6_IPSEC_POLICY(r1, 0x29, 0x22, &(0x7f00000005c0)={{{@in6=@mcast2, @in6=@mcast2}}, {{}, 0x0, @in=@multicast1}}, &(0x7f00000002c0)=0xfffffff6) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(0xffffffffffffffff, 0x84, 0x1d, 0x0, 0x0) bpf$MAP_CREATE(0x0, &(0x7f0000000280)={0x12, 0x0, 0x4}, 0x3c) socket$nl_route(0x10, 0x3, 0x0) socket(0x10, 0x80002, 0x0) sendmmsg$alg(0xffffffffffffffff, &(0x7f0000000140)=[{0x6, 0x0, &(0x7f0000000100), 0x6, &(0x7f0000000100)}], 0x492492492492805, 0x0) r2 = socket$netlink(0x10, 0x3, 0x0) r3 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r3, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r3, &(0x7f0000000100)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, 0x0) r5 = socket(0x22, 0x2, 0x4) bind$isdn_base(r5, &(0x7f0000000000), 0x6) setsockopt$IP_VS_SO_SET_ADD(r5, 0x0, 0x482, &(0x7f0000000540)={0x2e, @remote, 0x0, 0x0, 'lblcr\x00', 0x0, 0x0, 0x71}, 0x2c) sendmsg$nl_route(r2, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=ANY=[@ANYBLOB="480000001000050700"/20, @ANYRES32=r4, @ANYBLOB="0000000000000000280012000c0001407665746800000000180002001400010000000000", @ANYRES32=0x0, @ANYBLOB='\x00\x00\x00\x00\x00\x00\x00\x00'], 0x48}}, 0x0) sendmsg$nl_route(0xffffffffffffffff, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={0x0}}, 0x0) [ 51.302305][ T8019] team0: Port device team_slave_1 added [ 51.374454][ T8019] device hsr_slave_0 entered promiscuous mode [ 51.431307][ T8019] device hsr_slave_1 entered promiscuous mode [ 51.514349][ T8025] IPVS: ftp: loaded support on port[0] = 21 12:03:42 executing program 3: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r3 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) vmsplice(0xffffffffffffffff, &(0x7f00000000c0)=[{0x0}, {0x0}, {0x0}, {&(0x7f0000000000)="6653a8990785363940aed12f0400db2f00000022f1f169a4000000000000009f1f8d75442ce71022fe5037", 0x2b}], 0x4, 0x0) ptrace$setopts(0x4206, r3, 0x0, 0x0) tkill(r3, 0x3c) ptrace$cont(0x18, r3, 0x0, 0x0) ptrace$setregs(0xd, r3, 0x0, &(0x7f0000000080)) ptrace$cont(0x9, r3, 0x0, 0x0) [ 51.554585][ T8019] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 51.608172][ T8019] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 51.684174][ T8019] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 51.739377][ T8019] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 51.769504][ T8022] chnl_net:caif_netlink_parms(): no params data found 12:03:42 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_GET_NESTED_STATE(r2, 0xc028ae92, 0x0) [ 51.786133][ T8028] IPVS: ftp: loaded support on port[0] = 21 [ 51.830075][ T8019] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.837286][ T8019] bridge0: port 2(bridge_slave_1) entered forwarding state [ 51.844915][ T8019] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.852044][ T8019] bridge0: port 1(bridge_slave_0) entered forwarding state [ 51.905183][ T8022] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.921928][ T8022] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.933141][ T8022] device bridge_slave_0 entered promiscuous mode [ 51.964414][ T8022] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.972123][ T8022] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.979921][ T8022] device bridge_slave_1 entered promiscuous mode [ 52.077698][ T8025] chnl_net:caif_netlink_parms(): no params data found [ 52.088993][ T8022] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 12:03:42 executing program 5: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) perf_event_open(&(0x7f000025c000)={0x400000001, 0x70, 0x2005, 0x0, 0x0, 0x0, 0x0, 0x1, 0x182b7, 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, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffdfffffffff, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000080)) [ 52.118311][ T8031] IPVS: ftp: loaded support on port[0] = 21 [ 52.145411][ T8022] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.159267][ T8019] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.239291][ T3149] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.253089][ T3149] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.268903][ T3149] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 52.299057][ T8022] team0: Port device team_slave_0 added [ 52.308873][ T8028] chnl_net:caif_netlink_parms(): no params data found [ 52.324299][ T8022] team0: Port device team_slave_1 added [ 52.349987][ T8036] IPVS: ftp: loaded support on port[0] = 21 [ 52.370018][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.377824][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.388284][ T8019] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.395676][ T8025] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.403123][ T8025] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.411099][ T8025] device bridge_slave_0 entered promiscuous mode [ 52.439814][ T8025] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.447557][ T8025] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.455197][ T8025] device bridge_slave_1 entered promiscuous mode [ 52.479631][ T8025] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.490990][ T8025] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.504210][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.512786][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.521197][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.528227][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.535745][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.544756][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.553095][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.560162][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.570218][ T8028] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.577249][ T8028] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.586633][ T8028] device bridge_slave_0 entered promiscuous mode [ 52.642871][ T8022] device hsr_slave_0 entered promiscuous mode [ 52.700420][ T8022] device hsr_slave_1 entered promiscuous mode [ 52.750516][ T8022] debugfs: Directory 'hsr0' with parent '/' already present! [ 52.773738][ T8028] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.781018][ T8028] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.788502][ T8028] device bridge_slave_1 entered promiscuous mode [ 52.799494][ T3696] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.815482][ T8028] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.837883][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.857726][ T8028] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.879129][ T8028] team0: Port device team_slave_0 added [ 52.890982][ T8025] team0: Port device team_slave_0 added [ 52.905393][ T8025] team0: Port device team_slave_1 added [ 52.912283][ T8028] team0: Port device team_slave_1 added [ 53.002776][ T8028] device hsr_slave_0 entered promiscuous mode [ 53.040576][ T8028] device hsr_slave_1 entered promiscuous mode [ 53.090172][ T8028] debugfs: Directory 'hsr0' with parent '/' already present! [ 53.107414][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.116078][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.124510][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.133104][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.141695][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.149314][ T8022] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 53.193401][ T8022] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 53.254617][ T8022] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 53.341906][ T8025] device hsr_slave_0 entered promiscuous mode [ 53.380925][ T8025] device hsr_slave_1 entered promiscuous mode [ 53.420319][ T8025] debugfs: Directory 'hsr0' with parent '/' already present! [ 53.437611][ T8031] chnl_net:caif_netlink_parms(): no params data found [ 53.456067][ T8028] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 53.523081][ T8022] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 53.588441][ T8019] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 53.599124][ T8019] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 53.616457][ T8028] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 53.672393][ T8028] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 53.704159][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.712820][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.723156][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 53.732372][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 53.742934][ T8030] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 53.785611][ T8028] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 53.871314][ T8031] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.878433][ T8031] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.886238][ T8031] device bridge_slave_0 entered promiscuous mode [ 53.901208][ T8025] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 53.962039][ T8036] chnl_net:caif_netlink_parms(): no params data found [ 53.977419][ T8031] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.985325][ T8031] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.992928][ T8031] device bridge_slave_1 entered promiscuous mode [ 54.009448][ T8025] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 54.062450][ T3696] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.069843][ T3696] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.093933][ T8036] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.101351][ T8036] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.108802][ T8036] device bridge_slave_0 entered promiscuous mode [ 54.117807][ T8031] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.128742][ T8031] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.138701][ T8025] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 54.196360][ T8019] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.205251][ T8036] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.212976][ T8036] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.222214][ T8036] device bridge_slave_1 entered promiscuous mode [ 54.234672][ T8025] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 54.308940][ T8036] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.327926][ T8031] team0: Port device team_slave_0 added [ 54.346611][ T8036] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.357974][ T8031] team0: Port device team_slave_1 added [ 54.417932][ T8022] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.427126][ T8036] team0: Port device team_slave_0 added [ 54.443421][ T8028] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.469016][ T8022] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.505995][ T8031] device hsr_slave_0 entered promiscuous mode [ 159.490065][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 159.496832][ C1] rcu: 1-...!: (10499 ticks this GP) idle=3e6/1/0x4000000000000002 softirq=10637/10637 fqs=39 [ 159.507377][ C1] (t=10500 jiffies g=5641 q=156) [ 159.512392][ C1] rcu: rcu_preempt kthread starved for 10422 jiffies! g5641 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 159.523469][ C1] rcu: RCU grace-period kthread stack dump: [ 159.529342][ C1] rcu_preempt R running task 28992 10 2 0x80004000 [ 159.537231][ C1] Call Trace: [ 159.540515][ C1] __schedule+0x9a0/0xcc0 [ 159.544840][ C1] schedule+0x181/0x210 [ 159.548983][ C1] schedule_timeout+0x14f/0x240 [ 159.553818][ C1] ? run_local_timers+0x120/0x120 [ 159.558832][ C1] rcu_gp_kthread+0xed8/0x1770 [ 159.563593][ C1] kthread+0x332/0x350 [ 159.567645][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 159.572738][ C1] ? kthread_blkcg+0xe0/0xe0 [ 159.577318][ C1] ret_from_fork+0x24/0x30 [ 159.581732][ C1] NMI backtrace for cpu 1 [ 159.586051][ C1] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.4.0-syzkaller #0 [ 159.593916][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 159.603964][ C1] Workqueue: events_unbound fsnotify_mark_destroy_workfn [ 159.610968][ C1] Call Trace: [ 159.614239][ C1] [ 159.617081][ C1] dump_stack+0x1fb/0x318 [ 159.621398][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 159.626233][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 159.632378][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 159.638432][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 159.644408][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 159.650294][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 159.655393][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 159.660579][ C1] ? trace_hardirqs_off+0x74/0x80 [ 159.665589][ C1] update_process_times+0x12d/0x180 [ 159.670775][ C1] tick_sched_timer+0x263/0x420 [ 159.675611][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 159.681148][ C1] __hrtimer_run_queues+0x403/0x840 [ 159.686352][ C1] hrtimer_interrupt+0x38c/0xda0 [ 159.691292][ C1] ? debug_smp_processor_id+0x9/0x20 [ 159.696565][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 159.702098][ C1] apic_timer_interrupt+0xf/0x20 [ 159.707011][ C1] [ 159.709942][ C1] RIP: 0010:free_thread_stack+0x151/0x590 [ 159.715646][ C1] Code: 31 f6 e8 a2 a1 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 a0 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 a0 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 159.735231][ C1] RSP: 0018:ffffc90000dd78d8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 159.743625][ C1] RAX: 1ffff110149f4eb1 RBX: ffff8880a4fa7588 RCX: 0000000000000000 [ 159.751584][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000299ce00 [ 159.759539][ C1] RBP: ffffc90000dd7910 R08: dffffc0000000000 R09: fffffbfff120248a [ 159.767509][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a4fa7620 [ 159.775477][ C1] R13: dffffc0000000000 R14: 1ffff110149f4ec4 R15: ffff8880a7cb35a8 [ 159.783455][ C1] ? free_thread_stack+0x12e/0x590 [ 159.788555][ C1] put_task_stack+0xa3/0x130 [ 159.793130][ C1] finish_task_switch+0x3f1/0x550 [ 159.798142][ C1] __schedule+0x9a8/0xcc0 [ 159.802467][ C1] ? ___preempt_schedule+0x16/0x18 [ 159.807648][ C1] preempt_schedule+0xdb/0x120 [ 159.812401][ C1] ___preempt_schedule+0x16/0x18 [ 159.817326][ C1] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 159.822950][ C1] __call_srcu+0x7ab/0xb00 [ 159.827371][ C1] __synchronize_srcu+0x1cf/0x260 [ 159.832383][ C1] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 159.837921][ C1] synchronize_srcu+0x2cb/0x2f0 [ 159.842779][ C1] fsnotify_mark_destroy_workfn+0xe5/0x2a0 [ 159.848566][ C1] ? rcu_read_lock_sched_held+0x10b/0x170 [ 159.854274][ C1] process_one_work+0x7ef/0x10d0 [ 159.859211][ C1] worker_thread+0xc01/0x1630 [ 159.863893][ C1] kthread+0x332/0x350 [ 159.868029][ C1] ? rcu_lock_release+0x30/0x30 [ 159.872859][ C1] ? kthread_blkcg+0xe0/0xe0 [ 159.877434][ C1] ret_from_fork+0x24/0x30