[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.822960][ T25] audit: type=1800 audit(1575390738.258:25): pid=8072 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 43.841811][ T25] audit: type=1800 audit(1575390738.258:26): pid=8072 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.884900][ T25] audit: type=1800 audit(1575390738.258:27): pid=8072 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 '10.128.0.42' (ECDSA) to the list of known hosts. 2019/12/03 16:32:29 fuzzer started 2019/12/03 16:32:31 dialing manager at 10.128.0.26:45711 2019/12/03 16:32:31 syscalls: 2689 2019/12/03 16:32:31 code coverage: enabled 2019/12/03 16:32:31 comparison tracing: enabled 2019/12/03 16:32:31 extra coverage: extra coverage is not supported by the kernel 2019/12/03 16:32:31 setuid sandbox: enabled 2019/12/03 16:32:31 namespace sandbox: enabled 2019/12/03 16:32:31 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 16:32:31 fault injection: enabled 2019/12/03 16:32:31 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 16:32:31 net packet injection: enabled 2019/12/03 16:32:31 net device setup: enabled 2019/12/03 16:32:31 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 16:32:31 devlink PCI setup: PCI device 0000:00:10.0 is not available 16:32:32 executing program 0: r0 = socket(0x10, 0x803, 0x0) write(r0, &(0x7f0000000040)="2600000022004701050007008980e8ff06006d20002b1f00c0e9ff094a51f10101c7033500b0", 0x26) setsockopt$sock_int(r0, 0x1, 0x8, &(0x7f0000d9bffc), 0x4) sendto(r0, &(0x7f00000005c0)="120000001200e7ef007b00000000000000a1", 0x12, 0x0, 0x0, 0x0) getsockopt$sock_int(r0, 0x1, 0x4, 0x0, &(0x7f00000000c0)) recvmsg$can_j1939(r0, &(0x7f0000000380)={&(0x7f0000000100)=@isdn, 0x80, 0x0}, 0x0) 16:32:32 executing program 1: r0 = socket(0x1e, 0x805, 0x0) io_setup(0x6, &(0x7f0000000000)=0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) io_submit(r1, 0x2, &(0x7f00000006c0)=[&(0x7f00000001c0)={0x0, 0x0, 0x0, 0x0, 0x0, r2, 0x0}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x5, 0x0, r0, 0x0, 0x0, 0xffffffffffffc7fd}]) syzkaller login: [ 58.375747][ T8234] IPVS: ftp: loaded support on port[0] = 21 [ 58.519766][ T8234] chnl_net:caif_netlink_parms(): no params data found [ 58.543708][ T8237] IPVS: ftp: loaded support on port[0] = 21 [ 58.593045][ T8234] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.601474][ T8234] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.609972][ T8234] device bridge_slave_0 entered promiscuous mode 16:32:33 executing program 2: r0 = socket$kcm(0x10, 0x2, 0x10) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x25a, &(0x7f0000000200)=[{&(0x7f0000000240)="2e0000001e000507ed0080647e6394f26731d2000900120111404b480f0001000080020000000300f88000f01700", 0x2e}], 0x1}, 0x0) [ 58.637258][ T8234] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.644359][ T8234] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.652616][ T8234] device bridge_slave_1 entered promiscuous mode [ 58.715383][ T8234] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.737822][ T8234] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.751812][ T8237] chnl_net:caif_netlink_parms(): no params data found [ 58.793315][ T8234] team0: Port device team_slave_0 added [ 58.812545][ T8234] team0: Port device team_slave_1 added [ 58.836217][ T8237] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.843342][ T8237] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.865630][ T8237] device bridge_slave_0 entered promiscuous mode [ 58.898098][ T8237] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.906499][ T8237] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.914389][ T8237] device bridge_slave_1 entered promiscuous mode 16:32:33 executing program 3: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x3, 0x0) r1 = socket(0xa, 0x2, 0x0) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000caaffb)={0x0, 0x0}, &(0x7f0000cab000)=0xa) setreuid(0x0, r2) ioctl$sock_ifreq(r0, 0x89f5, &(0x7f0000000000)={'eql\x00\x00\x00\x01\x005\x00', @ifru_flags}) [ 58.987678][ T8234] device hsr_slave_0 entered promiscuous mode [ 59.075146][ T8234] device hsr_slave_1 entered promiscuous mode 16:32:33 executing program 4: r0 = syz_open_dev$sndseq(&(0x7f00000002c0)='/dev/snd/seq\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION(r0, 0x40505331, &(0x7f0000000140)={{0xff}, {}, 0x0, 0x0, 0x0, [], [0x0, 0x0, 0x0, 0x300000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfdfdffff]}) [ 59.147490][ T8240] IPVS: ftp: loaded support on port[0] = 21 [ 59.158099][ T8237] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.169849][ T8237] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.179595][ T8242] IPVS: ftp: loaded support on port[0] = 21 [ 59.269240][ T8237] team0: Port device team_slave_0 added [ 59.277961][ T8234] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 59.340724][ T8234] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.388284][ T8234] netdevsim netdevsim0 netdevsim2: renamed from eth2 16:32:33 executing program 5: r0 = creat(&(0x7f0000000080)='./bus\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r0, 0x40086602, &(0x7f0000000040)) r1 = creat(&(0x7f0000000100)='./bus\x00', 0x0) ftruncate(r1, 0x2008001) write$binfmt_elf64(r0, &(0x7f0000000000)=ANY=[@ANYRESDEC], 0xfd14) fallocate(r0, 0x100000003, 0x0, 0x28120001) [ 59.439173][ T8237] team0: Port device team_slave_1 added [ 59.463421][ T8234] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.562973][ T8244] IPVS: ftp: loaded support on port[0] = 21 [ 59.568675][ T8234] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.576213][ T8234] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.584216][ T8234] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.591327][ T8234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.657533][ T8237] device hsr_slave_0 entered promiscuous mode [ 59.725201][ T8237] device hsr_slave_1 entered promiscuous mode [ 59.785018][ T8237] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.794403][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.803545][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.840688][ T8246] IPVS: ftp: loaded support on port[0] = 21 [ 59.967161][ T8242] chnl_net:caif_netlink_parms(): no params data found [ 60.031140][ T8244] chnl_net:caif_netlink_parms(): no params data found [ 60.040232][ T8240] chnl_net:caif_netlink_parms(): no params data found [ 60.055656][ T8237] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.108540][ T8237] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.177288][ T8242] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.184555][ T8242] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.192488][ T8242] device bridge_slave_0 entered promiscuous mode [ 60.203212][ T8242] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.210314][ T8242] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.218407][ T8242] device bridge_slave_1 entered promiscuous mode [ 60.239396][ T8237] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.300745][ T8237] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.381372][ T8242] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.392802][ T8240] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.400487][ T8240] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.408731][ T8240] device bridge_slave_0 entered promiscuous mode [ 60.417844][ T8240] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.424971][ T8240] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.432682][ T8240] device bridge_slave_1 entered promiscuous mode [ 60.444344][ T8242] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.474013][ T8242] team0: Port device team_slave_0 added [ 60.498581][ T8244] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.506618][ T8244] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.514312][ T8244] device bridge_slave_0 entered promiscuous mode [ 60.522793][ T8242] team0: Port device team_slave_1 added [ 60.551870][ T8240] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.561888][ T8244] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.569300][ T8244] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.577635][ T8244] device bridge_slave_1 entered promiscuous mode [ 60.598036][ T8240] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.619181][ T8244] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.686961][ T8242] device hsr_slave_0 entered promiscuous mode [ 60.735478][ T8242] device hsr_slave_1 entered promiscuous mode [ 60.776253][ T8242] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.792424][ T8244] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.816063][ T8234] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.844302][ T8246] chnl_net:caif_netlink_parms(): no params data found [ 60.870760][ T8240] team0: Port device team_slave_0 added [ 60.911332][ T8240] team0: Port device team_slave_1 added [ 60.920456][ T8244] team0: Port device team_slave_0 added [ 60.926904][ T8242] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 60.957022][ T8242] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 61.010158][ T8242] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 61.066888][ T8242] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 61.111106][ T8244] team0: Port device team_slave_1 added [ 61.121568][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.129939][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.138660][ T8246] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.146188][ T8246] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.153960][ T8246] device bridge_slave_0 entered promiscuous mode [ 61.162185][ T8246] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.170220][ T8246] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.178168][ T8246] device bridge_slave_1 entered promiscuous mode [ 61.189778][ T8234] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.238028][ T8244] device hsr_slave_0 entered promiscuous mode [ 61.275552][ T8244] device hsr_slave_1 entered promiscuous mode [ 61.314931][ T8244] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.333488][ T8246] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.349859][ T8246] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.407656][ T8240] device hsr_slave_0 entered promiscuous mode [ 61.455250][ T8240] device hsr_slave_1 entered promiscuous mode [ 61.525026][ T8240] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.535744][ T8237] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.562443][ T8246] team0: Port device team_slave_0 added [ 61.571477][ T8246] team0: Port device team_slave_1 added [ 61.582320][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.591284][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.599959][ T3115] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.607221][ T3115] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.644881][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.653599][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.664229][ T8247] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.671448][ T8247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.680534][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.689937][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.698736][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.707465][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.717316][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.725903][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.734147][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.742553][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.761994][ T8237] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.784733][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.793357][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.801410][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.809637][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.818504][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.847206][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.897869][ T8246] device hsr_slave_0 entered promiscuous mode [ 61.935391][ T8246] device hsr_slave_1 entered promiscuous mode [ 61.974957][ T8246] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.985053][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.993706][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.002278][ T8247] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.009453][ T8247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.020349][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.029094][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.038441][ T8247] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.045622][ T8247] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.053327][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.063179][ T8247] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.077089][ T8244] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.132423][ T8244] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.179380][ T8244] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.230419][ T8244] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 62.288610][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.297694][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.307271][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.323593][ T8240] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 62.369221][ T8240] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 62.440643][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.448866][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.459042][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.467741][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.477836][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.486995][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.496045][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.509010][ T8240] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 62.558297][ T8240] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 62.611659][ T8237] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.625686][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.633924][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.644512][ T8234] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.662018][ T8242] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.682688][ T8246] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.740492][ T8246] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.788632][ T8246] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.842839][ T8248] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.850780][ T8248] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.866831][ T8237] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.904624][ T8246] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 167.924764][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.931622][ C1] rcu: 1-...!: (10500 ticks this GP) idle=356/1/0x4000000000000002 softirq=11159/11162 fqs=39 [ 167.942226][ C1] (t=10501 jiffies g=6445 q=69) [ 167.947183][ C1] rcu: rcu_preempt kthread starved for 10424 jiffies! g6445 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.958268][ C1] rcu: RCU grace-period kthread stack dump: [ 167.964147][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.972051][ C1] Call Trace: [ 167.975364][ C1] __schedule+0x9a0/0xcc0 [ 167.979694][ C1] schedule+0x181/0x210 [ 167.983838][ C1] schedule_timeout+0x14f/0x240 [ 167.988679][ C1] ? run_local_timers+0x120/0x120 [ 167.993705][ C1] rcu_gp_kthread+0xed8/0x1770 [ 167.998468][ C1] kthread+0x332/0x350 [ 168.002682][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 168.007831][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.012447][ C1] ret_from_fork+0x24/0x30 [ 168.016874][ C1] NMI backtrace for cpu 1 [ 168.021210][ C1] CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.4.0-syzkaller #0 [ 168.029093][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.039273][ C1] Workqueue: 0x0 (bat_events) [ 168.044026][ C1] Call Trace: [ 168.047297][ C1] [ 168.050143][ C1] dump_stack+0x1fb/0x318 [ 168.054480][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 168.059328][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 168.065486][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.071559][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.077543][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.083422][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.088527][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.093724][ C1] ? trace_hardirqs_off+0x74/0x80 [ 168.098740][ C1] update_process_times+0x12d/0x180 [ 168.104019][ C1] tick_sched_timer+0x263/0x420 [ 168.108894][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.114579][ C1] __hrtimer_run_queues+0x403/0x840 [ 168.119798][ C1] hrtimer_interrupt+0x38c/0xda0 [ 168.124752][ C1] ? debug_smp_processor_id+0x9/0x20 [ 168.130050][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 168.135592][ C1] apic_timer_interrupt+0xf/0x20 [ 168.140521][ C1] [ 168.143455][ C1] RIP: 0010:__memcg_kmem_uncharge+0x211/0x2e0 [ 168.149513][ C1] Code: 65 db a4 ff 48 c7 c7 98 4b 0d 89 e8 59 97 00 00 bf 01 00 00 00 e8 2f e3 9b ff 65 8b 05 d4 fd 4a 7e 85 c0 74 53 48 83 c4 08 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 49 8d 5f 10 48 89 df be 08 00 00 00 [ 168.169121][ C1] RSP: 0018:ffffc90000dd7c00 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 168.177619][ C1] RAX: 0000000000000001 RBX: ffffea00028a2900 RCX: 0000000000000000 [ 168.185597][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00028a2900 [ 168.193559][ C1] RBP: ffffc90000dd7c20 R08: dffffc0000000000 R09: fffffbfff120248a [ 168.201518][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffffea00028a2900 [ 168.209480][ C1] R13: 1ffffd4000514527 R14: ffffea00028a2938 R15: 0000000000000000 [ 168.217474][ C1] free_thread_stack+0x12e/0x590 [ 168.222408][ C1] put_task_stack+0xa3/0x130 [ 168.226989][ C1] finish_task_switch+0x3f1/0x550 [ 168.232099][ C1] __schedule+0x9a8/0xcc0 [ 168.236427][ C1] schedule+0x181/0x210 [ 168.240577][ C1] worker_thread+0x10d6/0x1630 [ 168.245351][ C1] kthread+0x332/0x350 [ 168.249404][ C1] ? rcu_lock_release+0x30/0x30 [ 168.254242][ C1] ? kthread_blkcg+0xe0/0xe0 [ 168.258838][ C1] ret_from_fork+0x24/0x30