[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 47.876491][ T23] audit: type=1800 audit(1575374012.313:25): pid=8226 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 47.896897][ T23] audit: type=1800 audit(1575374012.323:26): pid=8226 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 47.944607][ T23] audit: type=1800 audit(1575374012.323:27): pid=8226 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.15.224' (ECDSA) to the list of known hosts. 2019/12/03 11:53:43 fuzzer started 2019/12/03 11:53:44 dialing manager at 10.128.0.26:45711 2019/12/03 11:53:44 syscalls: 2689 2019/12/03 11:53:44 code coverage: enabled 2019/12/03 11:53:44 comparison tracing: enabled 2019/12/03 11:53:44 extra coverage: extra coverage is not supported by the kernel 2019/12/03 11:53:44 setuid sandbox: enabled 2019/12/03 11:53:44 namespace sandbox: enabled 2019/12/03 11:53:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 11:53:44 fault injection: enabled 2019/12/03 11:53:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 11:53:44 net packet injection: enabled 2019/12/03 11:53:44 net device setup: enabled 2019/12/03 11:53:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 11:53:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 11:53:46 executing program 0: r0 = socket$inet6(0xa, 0x40000080806, 0x0) bind$inet6(r0, &(0x7f0000002e80)={0xa, 0x4e20}, 0x1c) listen(r0, 0x200001ff) r1 = socket$inet6(0xa, 0x6, 0x0) connect$inet6(r1, &(0x7f0000419000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) sendmmsg(r1, &(0x7f000000c200)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000002800)=[{0x10, 0x10d, 0xc5}], 0x10}}], 0x2, 0x0) 11:53:46 executing program 1: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f00000000c0)={0x26, 'skcipher\x00', 0x0, 0x0, 'cbc-twofish-3way\x00'}, 0x58) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000c18000)='\x00@\x00'/24, 0x18) syzkaller login: [ 61.833492][ T8390] IPVS: ftp: loaded support on port[0] = 21 11:53:46 executing program 2: r0 = syz_open_dev$video(&(0x7f00000012c0)='/dev/video#\x00', 0x0, 0x0) ioctl$VIDIOC_QBUF(r0, 0xc058560f, &(0x7f0000001180)={0x0, 0xa, 0x4, 0x0, {0x0, 0x2710}, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, "a733f2a9"}, 0x0, 0x0, @planes=0x0, 0x4, 0x0, 0x2}) [ 62.020162][ T8390] chnl_net:caif_netlink_parms(): no params data found [ 62.023197][ T8393] IPVS: ftp: loaded support on port[0] = 21 [ 62.150587][ T8390] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.159042][ T8390] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.167291][ T8390] device bridge_slave_0 entered promiscuous mode [ 62.177188][ T8390] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.185357][ T8390] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.193550][ T8390] device bridge_slave_1 entered promiscuous mode [ 62.223790][ T8390] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.236453][ T8390] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.257664][ T8396] IPVS: ftp: loaded support on port[0] = 21 [ 62.315214][ T8390] team0: Port device team_slave_0 added [ 62.344382][ T8390] team0: Port device team_slave_1 added [ 62.359453][ T8393] chnl_net:caif_netlink_parms(): no params data found 11:53:46 executing program 3: r0 = perf_event_open(&(0x7f0000c86f88)={0x2, 0x70, 0xfffffffffffffffa, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 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) read(r0, &(0x7f0000000080)=""/254, 0xfe) [ 62.452277][ T8390] device hsr_slave_0 entered promiscuous mode [ 62.509701][ T8390] device hsr_slave_1 entered promiscuous mode [ 62.597472][ T8399] IPVS: ftp: loaded support on port[0] = 21 [ 62.619665][ T8393] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.626920][ T8393] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.637824][ T8393] device bridge_slave_0 entered promiscuous mode 11:53:47 executing program 4: r0 = socket(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_TX_RING(r0, 0x10e, 0xc, &(0x7f0000000040)={0x7ff}, 0x10) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000001c0)=ANY=[@ANYBLOB="200000001600010200000000000000000a000000", @ANYRES32=0x0, @ANYBLOB="0800080000000000703c7aa0875254d6bb499c6c8feec053525da7c7438ca35f4c2772612073a12677bf18fa77dd961a56bab0f545fa87318407c25a85e22ddf8cbe9d7f6405be8c6d59d0f61b08f914b03ec1865451adbc5fd28f4feaf7f00ac0014111dfa1fa6ec247eff7cf6412009eedfc64a89d66703c53c5ec79b29de14e775306b8bf8c77f68b86fb90ecc6c236f62c98691c"], 0x20}}, 0x0) [ 62.648180][ T8393] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.656460][ T8393] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.664568][ T8393] device bridge_slave_1 entered promiscuous mode [ 62.675929][ T8390] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.733015][ T8390] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.823604][ T8390] netdevsim netdevsim0 netdevsim2: renamed from eth2 11:53:47 executing program 5: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket(0x10, 0x803, 0x0) sendmsg$NBD_CMD_DISCONNECT(r1, &(0x7f00000001c0)={0x0, 0x0, &(0x7f0000000180)={0x0}}, 0x0) getsockname$packet(r1, &(0x7f0000000540)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast}, &(0x7f0000000200)=0x14) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000080)=@newlink={0x48, 0x10, 0x705, 0x0, 0x0, {0x0, 0x0, 0x0, r2}, [@IFLA_LINKINFO={0x28, 0x12, @veth={{0xc, 0x1, 'veth\x00'}, {0x18, 0x2, @VETH_INFO_PEER={0x14}}}}]}, 0x48}}, 0x0) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f00000003c0)=ANY=[@ANYBLOB="240000002a001fff0100"/20, @ANYRES32=r2, @ANYBLOB="0000c015a7000000000000000000005c1cc40f72a9dd662b05d0a8ab428962f157b08310278519a0b1900289c005c57efe831ec321ca3655783d9aedd5e05226f74b552dd6508e67b717340d7210dc608956206de55ebfceab4a939f9c629d7b214babe4895e3d914f3e0d3ca56f9ceea6daab28e9f3031df201252a6b43fabfe72335506e0196fda7f7ae2c487d5fc4ad26b0fb8776a0cb38c7e5a3b2fb784676f3c1e9bd4947e54ab96aa07b881fe68c5d613813003800"/207], 0x24}}, 0x20000086) r3 = socket(0x4000000000010, 0x1000000000080002, 0x0) sendmmsg$alg(r3, &(0x7f0000000140), 0x30a, 0x0) [ 62.882666][ T8390] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.977310][ T8402] IPVS: ftp: loaded support on port[0] = 21 [ 63.012485][ T8393] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.034647][ T8396] chnl_net:caif_netlink_parms(): no params data found [ 63.059921][ T8393] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.102878][ T8393] team0: Port device team_slave_0 added [ 63.116341][ T8393] team0: Port device team_slave_1 added [ 63.134167][ T8404] IPVS: ftp: loaded support on port[0] = 21 [ 63.189381][ T8396] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.196552][ T8396] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.204415][ T8396] device bridge_slave_0 entered promiscuous mode [ 63.215271][ T8396] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.222631][ T8396] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.230766][ T8396] device bridge_slave_1 entered promiscuous mode [ 63.291416][ T8393] device hsr_slave_0 entered promiscuous mode [ 63.329091][ T8393] device hsr_slave_1 entered promiscuous mode [ 63.388826][ T8393] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.408811][ T8399] chnl_net:caif_netlink_parms(): no params data found [ 63.465423][ T8396] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.522275][ T8396] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.577105][ T8396] team0: Port device team_slave_0 added [ 63.587675][ T8399] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.595228][ T8399] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.603355][ T8399] device bridge_slave_0 entered promiscuous mode [ 63.612885][ T8399] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.620054][ T8399] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.627916][ T8399] device bridge_slave_1 entered promiscuous mode [ 63.650657][ T8396] team0: Port device team_slave_1 added [ 63.666107][ T8390] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.674697][ T8402] chnl_net:caif_netlink_parms(): no params data found [ 63.694600][ T8393] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 63.754208][ T8393] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 63.881902][ T8396] device hsr_slave_0 entered promiscuous mode [ 63.928977][ T8396] device hsr_slave_1 entered promiscuous mode [ 63.988761][ T8396] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.006279][ T8399] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.018331][ T8399] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.034723][ T8393] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 64.084355][ T8393] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 64.167845][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.177494][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.189505][ T8390] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.198939][ T3362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.207667][ T3362] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.216281][ T3362] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.223560][ T3362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.233085][ T3362] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.254812][ T8399] team0: Port device team_slave_0 added [ 64.273297][ T8404] chnl_net:caif_netlink_parms(): no params data found [ 64.284737][ T8399] team0: Port device team_slave_1 added [ 64.304540][ T8402] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.313028][ T8402] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.321654][ T8402] device bridge_slave_0 entered promiscuous mode [ 64.390953][ T8399] device hsr_slave_0 entered promiscuous mode [ 64.429089][ T8399] device hsr_slave_1 entered promiscuous mode [ 64.479512][ T8399] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.487177][ T8402] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.494523][ T8402] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.502938][ T8402] device bridge_slave_1 entered promiscuous mode [ 64.519047][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.527714][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.536294][ T3152] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.543403][ T3152] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.566827][ T8404] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.575444][ T8404] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.583436][ T8404] device bridge_slave_0 entered promiscuous mode [ 64.612634][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.628925][ T8402] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.638221][ T8404] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.647638][ T8404] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.657393][ T8404] device bridge_slave_1 entered promiscuous mode [ 64.668218][ T8396] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 64.712259][ T8396] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 64.764111][ T8402] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.792722][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.812659][ T8396] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 64.842812][ T8396] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 64.898415][ T8402] team0: Port device team_slave_0 added [ 64.905650][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.914217][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.922667][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.931362][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.939723][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.966950][ T8399] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.012548][ T8404] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.022961][ T8402] team0: Port device team_slave_1 added [ 65.032588][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.040893][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.053483][ T8390] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.064980][ T8390] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.072815][ T8399] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.121101][ T8404] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.144965][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.156866][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.169060][ T8399] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.261598][ T8402] device hsr_slave_0 entered promiscuous mode [ 65.298944][ T8402] device hsr_slave_1 entered promiscuous mode [ 65.349055][ T8402] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.359141][ T8404] team0: Port device team_slave_0 added [ 65.370161][ T8404] team0: Port device team_slave_1 added [ 65.382289][ T8399] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 65.442249][ T8393] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.492255][ T8404] device hsr_slave_0 entered promiscuous mode [ 65.569078][ T8404] device hsr_slave_1 entered promiscuous mode [ 65.608789][ T8404] debugfs: Directory 'hsr0' with parent '/' already present! [ 65.639353][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.646751][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.664045][ T8393] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.685456][ T8404] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 65.730902][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.740358][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.748137][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.760081][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.768440][ T8395] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.775718][ T8395] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.785471][ T8395] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.805542][ T8390] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.814105][ T8404] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 65.858699][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.867426][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.877863][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.885130][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.903579][ T3152] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.913872][ T8402] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 65.950444][ T8404] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 65.991236][ T8404] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 66.041061][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.051177][ T8402] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.101497][ T8402] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.149008][ T8402] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 171.268552][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 171.275536][ C0] rcu: 0-...!: (1 GPs behind) idle=7ba/1/0x4000000000000002 softirq=11676/11677 fqs=0 [ 171.286207][ C0] (t=10501 jiffies g=7197 q=205) [ 171.291236][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g7197 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 171.302377][ C0] rcu: RCU grace-period kthread stack dump: [ 171.308270][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 171.316215][ C0] Call Trace: [ 171.319526][ C0] __schedule+0x9a0/0xcc0 [ 171.323864][ C0] schedule+0x181/0x210 [ 171.328019][ C0] schedule_timeout+0x14f/0x240 [ 171.332875][ C0] ? run_local_timers+0x120/0x120 [ 171.338395][ C0] rcu_gp_kthread+0xed8/0x1770 [ 171.344213][ C0] kthread+0x332/0x350 [ 171.349087][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 171.355043][ C0] ? kthread_blkcg+0xe0/0xe0 [ 171.360885][ C0] ret_from_fork+0x24/0x30 [ 171.366430][ C0] NMI backtrace for cpu 0 [ 171.371668][ C0] CPU: 0 PID: 324 Comm: kworker/u4:4 Not tainted 5.4.0-syzkaller #0 [ 171.380422][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 171.390742][ C0] Workqueue: events_unbound fsnotify_connector_destroy_workfn [ 171.398340][ C0] Call Trace: [ 171.401926][ C0] [ 171.404970][ C0] dump_stack+0x1fb/0x318 [ 171.409307][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 171.414481][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 171.420947][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 171.427182][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 171.433187][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 171.439714][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 171.444832][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 171.450041][ C0] ? trace_hardirqs_off+0x74/0x80 [ 171.455071][ C0] update_process_times+0x12d/0x180 [ 171.460271][ C0] tick_sched_timer+0x263/0x420 [ 171.465120][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 171.470668][ C0] __hrtimer_run_queues+0x403/0x840 [ 171.475887][ C0] hrtimer_interrupt+0x38c/0xda0 [ 171.480847][ C0] ? debug_smp_processor_id+0x9/0x20 [ 171.486143][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 171.491723][ C0] apic_timer_interrupt+0xf/0x20 [ 171.496668][ C0] [ 171.499613][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 [ 171.505778][ C0] Code: cd 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 75 2c <8b> 91 80 13 00 00 83 fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 [ 171.526128][ C0] RSP: 0018:ffffc900010078d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 171.535628][ C0] RAX: ffffffff81487433 RBX: 0000000000000000 RCX: ffff8880a89180c0 [ 171.543804][ C0] RDX: 0000000000000001 RSI: 00000000fffffffc RDI: ffffea0002491340 [ 171.552487][ C0] RBP: ffffc900010078f8 R08: dffffc0000000000 R09: fffffbfff120248a [ 171.560471][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: dffffc0000000000 [ 171.568666][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880967c3a28 [ 171.577087][ C0] ? mod_memcg_page_state+0x123/0x190 [ 171.584293][ C0] ? mod_memcg_page_state+0x123/0x190 [ 171.589693][ C0] free_thread_stack+0x168/0x590 [ 171.594650][ C0] put_task_stack+0xa3/0x130 [ 171.599429][ C0] finish_task_switch+0x3f1/0x550 [ 171.604487][ C0] __schedule+0x9a8/0xcc0 [ 171.609075][ C0] ? ___preempt_schedule+0x16/0x18 [ 171.614346][ C0] preempt_schedule+0xdb/0x120 [ 171.619127][ C0] ___preempt_schedule+0x16/0x18 [ 171.624072][ C0] _raw_spin_unlock_irqrestore+0xcc/0xe0 [ 171.630451][ C0] __call_srcu+0x7ab/0xb00 [ 171.635080][ C0] __synchronize_srcu+0x1cf/0x260 [ 171.640112][ C0] ? rcu_read_lock_any_held+0x1a0/0x1a0 [ 171.645911][ C0] synchronize_srcu+0x2cb/0x2f0 [ 171.650855][ C0] fsnotify_connector_destroy_workfn+0x44/0xb0 [ 171.657036][ C0] process_one_work+0x7ef/0x10d0 [ 171.662185][ C0] worker_thread+0xc01/0x1630 [ 171.667821][ C0] kthread+0x332/0x350 [ 171.672016][ C0] ? rcu_lock_release+0x30/0x30 [ 171.676982][ C0] ? kthread_blkcg+0xe0/0xe0 [ 171.681578][ C0] ret_from_fork+0x24/0x30