[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 43.978962][ T25] audit: type=1800 audit(1575421218.644:25): pid=8053 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.007059][ T25] audit: type=1800 audit(1575421218.644:26): pid=8053 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.046842][ T25] audit: type=1800 audit(1575421218.644:27): pid=8053 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 '10.128.1.52' (ECDSA) to the list of known hosts. 2019/12/04 01:00:30 fuzzer started 2019/12/04 01:00:32 dialing manager at 10.128.0.26:42111 2019/12/04 01:00:32 syscalls: 2689 2019/12/04 01:00:32 code coverage: enabled 2019/12/04 01:00:32 comparison tracing: enabled 2019/12/04 01:00:32 extra coverage: extra coverage is not supported by the kernel 2019/12/04 01:00:32 setuid sandbox: enabled 2019/12/04 01:00:32 namespace sandbox: enabled 2019/12/04 01:00:32 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 01:00:32 fault injection: enabled 2019/12/04 01:00:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 01:00:32 net packet injection: enabled 2019/12/04 01:00:32 net device setup: enabled 2019/12/04 01:00:32 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 01:00:32 devlink PCI setup: PCI device 0000:00:10.0 is not available 01:00:33 executing program 0: socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x11, 0x3, &(0x7f0000001fd8)=@framed={{0xffffff85, 0x0, 0x0, 0x0, 0x50, 0x62, 0xa, 0xff00}}, &(0x7f0000000000)='PL \x00L\xf7\xd1*\xf1\x1c\xe9%7\xb5\xe3\x19\x1ef\xde]N\xc1\x8eL-\xf0\x14\x84\xa8mw\x84/bIF\xea\xe3\x10yL\x8c\x96\xff\x14f#.%\x95\x119\xbd\xa5\xd2\x99\x0eR?\x8e\xc3\b\x0f\xfc\x12$\xd8\xdcL\x84\xa9\xc8\xe8\xab1Wh\x06qU#\xfat\x9e\x86\x15\xc6\x10I\xb8\xb1\xbej\xa7t\a\x02\xccZ\xdd', 0x6, 0x487, &(0x7f000000cf3d)=""/195, 0x0, 0x4}, 0x48) 01:00:33 executing program 1: socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = fcntl$dupfd(r1, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) rt_sigprocmask(0x0, &(0x7f0000000080)={0xfffffffffffffffd}, 0x0, 0x8) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) close(r4) sendmsg$DEVLINK_CMD_GET(0xffffffffffffffff, &(0x7f0000000240)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x802002}, 0xc, 0x0}, 0x0) io_setup(0x7, &(0x7f0000000100)=0x0) io_submit(r5, 0x32f, &(0x7f00000000c0)=[&(0x7f0000000000)={0x0, 0x0, 0x0, 0x1000800000000001, 0x0, r3, 0x0}]) syzkaller login: [ 58.676463][ T8216] IPVS: ftp: loaded support on port[0] = 21 01:00:33 executing program 2: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet(0x10, 0x3, 0x0) sendmsg(r2, &(0x7f0000000040)={0x0, 0xfffffffffffffd32, &(0x7f0000009ff0)=[{&(0x7f0000000800)="23000000660007031dfffd946fa2830020200a00ffffffffa61d85680c1ba3a20400ff7e280000005e00ffffba16a0aa1c0009b3ebea8653b138a32052b44e099d881e02546dcda4cc7e6397", 0x4c}], 0x1}, 0x0) [ 58.872078][ T8216] chnl_net:caif_netlink_parms(): no params data found [ 58.930519][ T8216] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.933494][ T8219] IPVS: ftp: loaded support on port[0] = 21 [ 58.938579][ T8216] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.953159][ T8216] device bridge_slave_0 entered promiscuous mode [ 58.961862][ T8216] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.969152][ T8216] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.977157][ T8216] device bridge_slave_1 entered promiscuous mode [ 59.011474][ T8216] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.038638][ T8216] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.093209][ T8216] team0: Port device team_slave_0 added [ 59.112036][ T8216] team0: Port device team_slave_1 added 01:00:33 executing program 3: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000080)={&(0x7f0000000180)=@newlink={0x50, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_IFNAME={0x14, 0x3, 'bond0\x00'}, @IFLA_LINKINFO={0x1c, 0x12, @bond={{0xc, 0x1, 'bond\x00'}, {0xc, 0x2, [@IFLA_BOND_AD_LACP_RATE={0x8}]}}}]}, 0x50}}, 0x0) [ 59.153401][ T8222] IPVS: ftp: loaded support on port[0] = 21 [ 59.189874][ T8216] device hsr_slave_0 entered promiscuous mode [ 59.227462][ T8216] device hsr_slave_1 entered promiscuous mode [ 59.389256][ T8216] netdevsim netdevsim0 netdevsim0: renamed from eth0 01:00:34 executing program 4: unshare(0x400) r0 = openat$ppp(0xffffffffffffff9c, &(0x7f00000029c0)='/dev/ppp\x00', 0x0, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$EVIOCGPROP(r1, 0xc004743e, &(0x7f0000000300)=""/246) ioctl$ASHMEM_GET_SIZE(r1, 0x7704, 0x0) [ 59.460872][ T8219] chnl_net:caif_netlink_parms(): no params data found [ 59.477335][ T8216] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 59.490443][ T8224] IPVS: ftp: loaded support on port[0] = 21 [ 59.561015][ T8216] netdevsim netdevsim0 netdevsim2: renamed from eth2 01:00:34 executing program 5: r0 = socket$inet6(0xa, 0x400000000001, 0x0) socketpair$unix(0x1, 0x8ddfa9f3fe79b848, 0x0, 0x0) dup(0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) r1 = dup(r0) setsockopt$inet6_tcp_int(r1, 0x6, 0x20000000000002, &(0x7f00007b1000)=0x81, 0x4) setsockopt$inet_tcp_TCP_MD5SIG(r1, 0x6, 0xe, &(0x7f00000002c0)={@in6={{0xa, 0x0, 0x0, @rand_addr="0787e8f9c1390c16a2caccbba8aabc1c"}}, 0x0, 0x6, 0x0, "9fc72b543b28dd4728c3988b7adea76fa59f0200730b82304d2a8b2baf8c1724fb01b86d7c1d88f3c7322926d8f0fcdb51b5df3ba8b696320eb85ae1bd8e6af048c54f27e0dad819d7cb50aaa2bc300f"}, 0xd8) ioctl$int_in(r0, 0x5452, 0x0) bind$inet6(r0, &(0x7f0000000180)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) ioctl$BLKDISCARD(0xffffffffffffffff, 0x1277, 0x0) setsockopt$packet_drop_memb(0xffffffffffffffff, 0x107, 0x2, 0x0, 0x0) sendto$inet6(r0, 0x0, 0xffffff91, 0x20000008, &(0x7f0000000040)={0xa, 0x4e20, 0x0, @loopback}, 0x6e) ioctl$sock_inet_SIOCGIFDSTADDR(0xffffffffffffffff, 0x8917, 0x0) r2 = open(&(0x7f0000002000)='./bus\x00', 0x141042, 0x0) lseek(0xffffffffffffffff, 0x0, 0x0) syz_open_procfs(0x0, 0x0) openat$cgroup_ro(0xffffffffffffffff, 0x0, 0x0, 0x0) syz_open_procfs(0x0, 0x0) openat$cgroup_ro(0xffffffffffffffff, 0x0, 0x0, 0x0) dup2(0xffffffffffffffff, 0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) sync_file_range(0xffffffffffffffff, 0x0, 0x0, 0x0) ftruncate(r2, 0x7fff) sendfile(r1, r2, &(0x7f0000d83ff8)=0x4, 0x8000ffffbffe) [ 59.634165][ T8216] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 59.726250][ T8227] IPVS: ftp: loaded support on port[0] = 21 [ 59.779545][ T8216] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.786768][ T8216] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.794841][ T8216] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.802091][ T8216] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.861482][ T8219] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.868700][ T8219] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.869660][ T8219] device bridge_slave_0 entered promiscuous mode [ 59.885327][ T8229] IPVS: ftp: loaded support on port[0] = 21 [ 59.901950][ T8222] chnl_net:caif_netlink_parms(): no params data found [ 59.914587][ T8219] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.922180][ T8219] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.930366][ T8219] device bridge_slave_1 entered promiscuous mode [ 59.942823][ T8231] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.951140][ T8231] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.011335][ T8219] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.026460][ T8219] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.102665][ T8219] team0: Port device team_slave_0 added [ 60.112574][ T8219] team0: Port device team_slave_1 added [ 60.152218][ T8222] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.159508][ T8222] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.167876][ T8222] device bridge_slave_0 entered promiscuous mode [ 60.175148][ T8227] chnl_net:caif_netlink_parms(): no params data found [ 60.190706][ T8224] chnl_net:caif_netlink_parms(): no params data found [ 60.210586][ T8222] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.218235][ T8222] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.226031][ T8222] device bridge_slave_1 entered promiscuous mode [ 60.245597][ T8222] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.257740][ T8222] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.310104][ T8219] device hsr_slave_0 entered promiscuous mode [ 60.377355][ T8219] device hsr_slave_1 entered promiscuous mode [ 60.427230][ T8219] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.489058][ T8222] team0: Port device team_slave_0 added [ 60.502169][ T8216] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.512362][ T8227] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.520026][ T8227] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.527921][ T8227] device bridge_slave_0 entered promiscuous mode [ 60.542326][ T8222] team0: Port device team_slave_1 added [ 60.571655][ T8216] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.580028][ T8227] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.588762][ T8227] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.596555][ T8227] device bridge_slave_1 entered promiscuous mode [ 60.604392][ T8224] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.613508][ T8224] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.628021][ T8224] device bridge_slave_0 entered promiscuous mode [ 60.639128][ T8224] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.646189][ T8224] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.654229][ T8224] device bridge_slave_1 entered promiscuous mode [ 60.674835][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.683753][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.758731][ T8222] device hsr_slave_0 entered promiscuous mode [ 60.797469][ T8222] device hsr_slave_1 entered promiscuous mode [ 60.837183][ T8222] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.854691][ T8219] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.890112][ T8219] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.965051][ T8224] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.979863][ T8227] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.005840][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 61.015411][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.023939][ T3209] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.031036][ T3209] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.040199][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 61.049076][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.057493][ T3209] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.064725][ T3209] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.072380][ T8219] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 61.129184][ T8219] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 61.170233][ T8224] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.189481][ T8227] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.214584][ T8229] chnl_net:caif_netlink_parms(): no params data found [ 61.234561][ T8224] team0: Port device team_slave_0 added [ 61.243209][ T8224] team0: Port device team_slave_1 added [ 61.280796][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.297256][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.305840][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.315144][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.323705][ T8222] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.365949][ T8227] team0: Port device team_slave_0 added [ 61.378084][ T8229] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.385238][ T8229] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.393232][ T8229] device bridge_slave_0 entered promiscuous mode [ 61.401903][ T8229] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.409349][ T8229] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.417163][ T8229] device bridge_slave_1 entered promiscuous mode [ 61.432048][ T8232] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.440407][ T8222] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.504655][ T8222] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.560497][ T8227] team0: Port device team_slave_1 added [ 61.566279][ T8222] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.631475][ T8229] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.646374][ T8229] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.709995][ T8227] device hsr_slave_0 entered promiscuous mode [ 61.757426][ T8227] device hsr_slave_1 entered promiscuous mode [ 61.807185][ T8227] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.816438][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.825310][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.899744][ T8224] device hsr_slave_0 entered promiscuous mode [ 61.927464][ T8224] device hsr_slave_1 entered promiscuous mode [ 61.967203][ T8224] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.986797][ T8229] team0: Port device team_slave_0 added [ 62.015671][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.024380][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.034092][ T8229] team0: Port device team_slave_1 added [ 62.043444][ T8216] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 62.056138][ T8216] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 62.089970][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 62.102530][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 62.136527][ T8224] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.178639][ T8227] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 62.298806][ T8229] device hsr_slave_0 entered promiscuous mode [ 62.348269][ T8229] device hsr_slave_1 entered promiscuous mode [ 62.388101][ T8229] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.401575][ T8224] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.458415][ T8227] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 62.499280][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 62.506898][ T3209] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 62.523632][ T8222] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.537709][ T8216] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 62.560076][ T8224] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.629064][ T8227] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 62.669110][ T8227] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 62.737469][ T8219] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.744610][ T8224] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.802134][ T8219] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.836468][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.844698][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.855003][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.866794][ T8231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.885984][ T8229] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 167.856963][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 167.863799][ C0] rcu: 0-...!: (10499 ticks this GP) idle=686/1/0x4000000000000002 softirq=11260/11260 fqs=38 [ 167.874372][ C0] (t=10500 jiffies g=6365 q=90) [ 167.879306][ C0] rcu: rcu_preempt kthread starved for 10418 jiffies! g6365 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 167.890833][ C0] rcu: RCU grace-period kthread stack dump: [ 167.896711][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 167.904596][ C0] Call Trace: [ 167.907885][ C0] __schedule+0x9a0/0xcc0 [ 167.912212][ C0] schedule+0x181/0x210 [ 167.916354][ C0] schedule_timeout+0x14f/0x240 [ 167.921277][ C0] ? run_local_timers+0x120/0x120 [ 167.926290][ C0] rcu_gp_kthread+0xed8/0x1770 [ 167.931050][ C0] kthread+0x332/0x350 [ 167.935105][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 167.940200][ C0] ? kthread_blkcg+0xe0/0xe0 [ 167.944783][ C0] ret_from_fork+0x24/0x30 [ 167.949812][ C0] NMI backtrace for cpu 0 [ 167.954221][ C0] CPU: 0 PID: 8089 Comm: rs:main Q:Reg Not tainted 5.4.0-syzkaller #0 [ 167.962349][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 167.972508][ C0] Call Trace: [ 167.975813][ C0] [ 167.978668][ C0] dump_stack+0x1fb/0x318 [ 167.983002][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 167.988116][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 167.994261][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.000314][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.006372][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.012249][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.017354][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.022545][ C0] ? trace_hardirqs_off+0x74/0x80 [ 168.027565][ C0] update_process_times+0x12d/0x180 [ 168.032773][ C0] tick_sched_timer+0x263/0x420 [ 168.037645][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.043192][ C0] __hrtimer_run_queues+0x403/0x840 [ 168.048400][ C0] hrtimer_interrupt+0x38c/0xda0 [ 168.053344][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.058642][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 168.064177][ C0] apic_timer_interrupt+0xf/0x20 [ 168.069097][ C0] [ 168.072035][ C0] RIP: 0010:free_thread_stack+0x177/0x590 [ 168.077883][ C0] Code: 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 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 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 [ 168.097504][ C0] RSP: 0018:ffffc90001867848 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 168.105915][ C0] RAX: ffffffff81487433 RBX: ffff888091f33f08 RCX: ffff8880a2f08000 [ 168.113889][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea000287a640 [ 168.122370][ C0] RBP: ffffc90001867880 R08: dffffc0000000000 R09: fffffbfff120248a [ 168.130326][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff888091f33fa0 [ 168.138303][ C0] R13: dffffc0000000000 R14: 1ffff110123e67f4 R15: ffff8880a8313a28 [ 168.146281][ C0] ? mod_memcg_page_state+0x123/0x190 [ 168.151651][ C0] ? free_thread_stack+0x168/0x590 [ 168.156755][ C0] put_task_stack+0xa3/0x130 [ 168.161339][ C0] finish_task_switch+0x3f1/0x550 [ 168.166354][ C0] __schedule+0x9a8/0xcc0 [ 168.170677][ C0] schedule+0x181/0x210 [ 168.174821][ C0] futex_wait_queue_me+0x2a3/0x4b0 [ 168.179946][ C0] futex_wait+0x252/0x770 [ 168.184278][ C0] ? __kasan_check_write+0x14/0x20 [ 168.189372][ C0] ? up_write+0xee/0x450 [ 168.193603][ C0] do_futex+0x437/0x3d60 [ 168.197853][ C0] ? ext4_file_write_iter+0x546/0x1f50 [ 168.203298][ C0] ? lock_acquire+0x158/0x250 [ 168.208045][ C0] ? __fdget_pos+0x243/0x2e0 [ 168.212883][ C0] ? vfs_write+0x4a2/0x590 [ 168.217281][ C0] ? __f_unlock_pos+0x19/0x20 [ 168.221953][ C0] ? __f_unlock_pos+0x19/0x20 [ 168.226626][ C0] ? check_preemption_disabled+0xb4/0x260 [ 168.232325][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.237601][ C0] __se_sys_futex+0x28c/0x360 [ 168.242264][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 168.247968][ C0] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 168.253671][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 168.259122][ C0] __x64_sys_futex+0xe5/0x100 [ 168.263821][ C0] do_syscall_64+0xf7/0x1c0 [ 168.268326][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 168.274302][ C0] RIP: 0033:0x7f403a2fb344 [ 168.278716][ C0] Code: 1a be 8b 00 00 00 b8 ca 00 00 00 0f 05 41 b8 01 00 00 00 48 3d 01 f0 ff ff 72 0f be 80 00 00 00 45 31 c0 b8 ca 00 00 00 0f 05 <8b> 3c 24 e8 64 29 00 00 48 8b 7c 24 08 be 01 00 00 00 31 c0 f0 0f [ 168.298317][ C0] RSP: 002b:00007f403889fcb0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 168.306760][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f403a2fb344 [ 168.314727][ C0] RDX: 000000000000027f RSI: 0000000000000080 RDI: 000000000211f264 [ 168.322695][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000013f [ 168.330656][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000447f18 [ 168.338627][ C0] R13: 000000000044421f R14: 0000000000447ee8 R15: 0000000000000003