[ 41.422936][ T25] audit: type=1800 audit(1575464299.508:28): pid=7935 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. [ 41.778921][ T7999] sshd (7999) used greatest stack depth: 24000 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 42.010498][ T25] audit: type=1800 audit(1575464300.198:29): pid=7935 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 42.030217][ T25] audit: type=1800 audit(1575464300.198:30): pid=7935 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 '10.128.15.193' (ECDSA) to the list of known hosts. 2019/12/04 12:58:31 fuzzer started 2019/12/04 12:58:32 dialing manager at 10.128.0.26:36481 2019/12/04 12:58:32 syscalls: 2691 2019/12/04 12:58:32 code coverage: enabled 2019/12/04 12:58:32 comparison tracing: enabled 2019/12/04 12:58:32 extra coverage: extra coverage is not supported by the kernel 2019/12/04 12:58:32 setuid sandbox: enabled 2019/12/04 12:58:32 namespace sandbox: enabled 2019/12/04 12:58:32 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 12:58:32 fault injection: enabled 2019/12/04 12:58:32 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 12:58:32 net packet injection: enabled 2019/12/04 12:58:32 net device setup: enabled 2019/12/04 12:58:32 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 12:58:32 devlink PCI setup: PCI device 0000:00:10.0 is not available 12:58:33 executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25GSUBSCRIP(r0, 0x89eb, &(0x7f0000000000)={'irlan0\x00'}) 12:58:33 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) add_key(&(0x7f0000000000)='asymmetric\x00', 0x0, &(0x7f0000000440)="3058020104000000000000987ff008d672bd136840d27c44d58e94ea51a7dfc59e92e80d9482ca7839173a8f1143a939b4fd2672693a46c08df6616dd21be3453ecf73039a20f43acbc5376139a9070ae27dd847474d1e59b269", 0x5a, 0xfffffffffffffffd) syzkaller login: [ 55.383158][ T8102] IPVS: ftp: loaded support on port[0] = 21 [ 55.504344][ T8104] IPVS: ftp: loaded support on port[0] = 21 [ 55.554310][ T8102] chnl_net:caif_netlink_parms(): no params data found 12:58:33 executing program 2: r0 = socket$inet6_sctp(0xa, 0x5, 0x84) shutdown(r0, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(r0, 0x84, 0x6f, &(0x7f0000000140)={0x0, 0x8, &(0x7f00000005c0)=[@in6={0xa, 0x4e24, 0x3, @mcast2, 0xd511}]}, &(0x7f0000000100)=0x10) getsockopt$inet_sctp6_SCTP_GET_ASSOC_STATS(r0, 0x84, 0x7d, &(0x7f0000000300)={r1, @in6={{0xa, 0x0, 0x7, @ipv4={[], [], @initdev={0xac, 0x1e, 0x1, 0x0}}, 0x3}}, [0x0, 0x0, 0x0, 0x0, 0xb8c, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2]}, &(0x7f0000000040)=0x100) getsockopt$inet_sctp6_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000080)={r2}, &(0x7f00000000c0)=0x10) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffffff, 0x29, 0x23, &(0x7f00000001c0)={{{@in=@initdev, @in6=@dev, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@empty}, 0x0, @in=@dev}}, &(0x7f00000002c0)=0xe8) ioctl$sock_inet6_SIOCADDRT(r0, 0x890b, &(0x7f0000000300)={@rand_addr="ee7a665dae4628fcce6336cc1c844dc0", @rand_addr="b624ae01deb31621220126e9975cf9cf", @empty, 0xffff, 0x502, 0x6, 0x100, 0x9, 0x0, r3}) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000400)={@mcast2, 0x7, 0x1, 0x1, 0x9, 0x9, 0x7f}, 0x20) r4 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r4, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000600)=ANY=[@ANYBLOB="f081000000000000000000000000000000000000000000000004000000000009ac1414bb0000000000000000000000000000ff000054594d5b8e67267a9f1cb6f93466934acbd82b42e1ba41facca877acf8464cfa40bc3fcfc192031ce9afb3fffa36430000000000", @ANYRES32=0x0, @ANYRES32=0x0, @ANYBLOB="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"], 0x3fe}}, 0x0) getsockopt$SO_COOKIE(r4, 0x1, 0x39, &(0x7f00000004c0), &(0x7f0000000500)=0x8) r5 = socket(0x10, 0x3, 0x0) ioctl$sock_ifreq(r5, 0x89f0, &(0x7f0000000080)={'ip_vti0\x00', @ifru_data=&(0x7f0000000000)="b06f31673d3da2b793d4f9a507e3c9133ba7ce8f5e6e538ecf8829b08f7f4aae"}) io_uring_setup(0xca4, &(0x7f0000000140)={0x0, 0x0, 0x1, 0x0, 0xaf}) r6 = socket(0x10, 0x3, 0x0) r7 = socket$inet6_tcp(0xa, 0x1, 0x0) r8 = socket$netlink(0x10, 0x3, 0x0) r9 = fcntl$dupfd(r8, 0x0, r7) ioctl$PERF_EVENT_IOC_ENABLE(r9, 0x8912, 0x400200) ioctl$TCFLSH(r9, 0x540b, 0x5) poll(&(0x7f0000000000)=[{}, {}, {}], 0x2, 0x0) socket$inet6_tcp(0xa, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) ioctl$VIDIOC_G_OUTPUT(0xffffffffffffffff, 0x8004562e, &(0x7f0000000540)) ioctl$sock_ifreq(r6, 0x89f1, &(0x7f0000000080)={'ip_vti0\x00', @ifru_flags}) [ 55.663201][ T8102] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.693744][ T8102] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.710321][ T8102] device bridge_slave_0 entered promiscuous mode [ 55.718964][ T8102] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.726085][ T8102] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.733745][ T8102] device bridge_slave_1 entered promiscuous mode [ 55.763174][ T8108] IPVS: ftp: loaded support on port[0] = 21 12:58:34 executing program 3: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet6_MRT6_DEL_MFC_PROXY(0xffffffffffffffff, 0x29, 0xd3, &(0x7f0000001000)={{0xa, 0x0, 0x0, @initdev={0xfe, 0x88, [], 0x0, 0x0}}, {0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x5]}, 0x5c) setsockopt$inet_int(r0, 0x0, 0x40, &(0x7f0000000ffc), 0x4) [ 55.821771][ T8102] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.843046][ T8104] chnl_net:caif_netlink_parms(): no params data found [ 55.854593][ T8102] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.949142][ T8102] team0: Port device team_slave_0 added [ 55.969316][ T8104] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.985366][ T8104] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.006037][ T8104] device bridge_slave_0 entered promiscuous mode [ 56.026718][ T8102] team0: Port device team_slave_1 added 12:58:34 executing program 4: sendmmsg(0xffffffffffffffff, 0x0, 0x0, 0x0) creat(&(0x7f0000000040)='./bus\x00', 0x0) lremovexattr(&(0x7f0000000040)='./bus\x00', 0x0) [ 56.078347][ T8104] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.098127][ T8104] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.106167][ T8104] device bridge_slave_1 entered promiscuous mode [ 56.172831][ T8104] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.200615][ T8108] chnl_net:caif_netlink_parms(): no params data found [ 56.223016][ T8104] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.236649][ T8112] IPVS: ftp: loaded support on port[0] = 21 12:58:34 executing program 5: r0 = openat$fb0(0xffffffffffffff9c, &(0x7f00000004c0)='/dev/fb0\x00', 0x0, 0x0) syz_open_dev$usbfs(&(0x7f0000000080)='/dev/bus/usb/00#/00#\x00', 0x0, 0x0) ioctl$USBDEVFS_SETCONFIGURATION(r0, 0x4606, &(0x7f0000000080)) [ 56.307952][ T8102] device hsr_slave_0 entered promiscuous mode [ 56.337345][ T8102] device hsr_slave_1 entered promiscuous mode [ 56.419333][ T8114] IPVS: ftp: loaded support on port[0] = 21 [ 56.435216][ T8104] team0: Port device team_slave_0 added [ 56.480893][ T8104] team0: Port device team_slave_1 added [ 56.504668][ T8108] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.513193][ T8108] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.523903][ T8108] device bridge_slave_0 entered promiscuous mode [ 56.533244][ T8108] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.540706][ T8108] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.548563][ T8108] device bridge_slave_1 entered promiscuous mode [ 56.607514][ T8104] device hsr_slave_0 entered promiscuous mode [ 56.645639][ T8104] device hsr_slave_1 entered promiscuous mode [ 56.685693][ T8104] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.714902][ T8116] IPVS: ftp: loaded support on port[0] = 21 [ 56.751471][ T8102] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.808360][ T8102] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.871452][ T8108] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.902454][ T8102] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.941547][ T8108] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.974597][ T8102] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.029188][ T8108] team0: Port device team_slave_0 added [ 57.037441][ T8112] chnl_net:caif_netlink_parms(): no params data found [ 57.070197][ T8108] team0: Port device team_slave_1 added [ 57.089164][ T8104] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.139147][ T8104] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.201488][ T8114] chnl_net:caif_netlink_parms(): no params data found [ 57.222485][ T8104] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.298461][ T8108] device hsr_slave_0 entered promiscuous mode [ 57.345880][ T8108] device hsr_slave_1 entered promiscuous mode [ 57.405371][ T8108] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.435874][ T8104] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.495673][ T8112] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.502747][ T8112] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.511011][ T8112] device bridge_slave_0 entered promiscuous mode [ 57.521198][ T8112] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.528552][ T8112] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.536216][ T8112] device bridge_slave_1 entered promiscuous mode [ 57.592937][ T8112] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.615515][ T8108] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 57.664876][ T8112] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.686973][ T8102] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.694331][ T8114] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.702951][ T8114] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.713012][ T8114] device bridge_slave_0 entered promiscuous mode [ 57.720397][ T8108] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 57.788986][ T8112] team0: Port device team_slave_0 added [ 57.800163][ T8114] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.808242][ T8114] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.818437][ T8114] device bridge_slave_1 entered promiscuous mode [ 57.828719][ T8108] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 57.907657][ T8112] team0: Port device team_slave_1 added [ 57.913380][ T8108] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 57.966902][ T8116] chnl_net:caif_netlink_parms(): no params data found [ 58.003527][ T8114] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.019566][ T8102] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.030758][ T8114] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.087086][ T8112] device hsr_slave_0 entered promiscuous mode [ 58.125627][ T8112] device hsr_slave_1 entered promiscuous mode [ 58.175476][ T8112] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.184034][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.192592][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.201845][ T8116] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.209079][ T8116] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.220039][ T8116] device bridge_slave_0 entered promiscuous mode [ 58.232896][ T8116] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.240397][ T8116] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.248247][ T8116] device bridge_slave_1 entered promiscuous mode [ 58.278089][ T8114] team0: Port device team_slave_0 added [ 58.298699][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.309697][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.318652][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.325843][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.333949][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.344335][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.352751][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.359831][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.368009][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.376535][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.386245][ T8114] team0: Port device team_slave_1 added [ 58.399581][ T8116] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.432347][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.440777][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.449715][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.458476][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.467784][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.476327][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.484528][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.493141][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.506822][ T8116] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.534359][ T8116] team0: Port device team_slave_0 added [ 58.543482][ T8116] team0: Port device team_slave_1 added [ 58.607145][ T8114] device hsr_slave_0 entered promiscuous mode [ 58.645646][ T8114] device hsr_slave_1 entered promiscuous mode [ 58.685447][ T8114] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.693044][ T8112] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 58.728916][ T8112] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 58.767182][ T8112] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 58.813651][ T8102] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.825174][ T8102] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.847600][ T8112] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 58.883837][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.892296][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.913375][ T8102] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.998082][ T8116] device hsr_slave_0 entered promiscuous mode [ 59.065814][ T8116] device hsr_slave_1 entered promiscuous mode [ 59.115442][ T8116] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.134185][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.142381][ T2857] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.153758][ T8108] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.201788][ T8104] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.210315][ T8114] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.249415][ T8114] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.311551][ T8114] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.347784][ T8114] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.407433][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.429609][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.465042][ T8104] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.504643][ T8104] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.520347][ T8104] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.552007][ T8104] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 164.465234][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 164.472011][ C0] rcu: 0-....: (10499 ticks this GP) idle=2b2/1/0x4000000000000002 softirq=10377/10377 fqs=2822 [ 164.482743][ C0] (t=10501 jiffies g=6009 q=385) [ 164.488193][ C0] rcu: rcu_preempt kthread starved for 4857 jiffies! g6009 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 164.499184][ C0] rcu: RCU grace-period kthread stack dump: [ 164.505058][ C0] rcu_preempt R running task 28992 10 2 0x80004000 [ 164.513376][ C0] Call Trace: [ 164.516699][ C0] __schedule+0x9a0/0xcc0 [ 164.521028][ C0] schedule+0x181/0x210 [ 164.525172][ C0] schedule_timeout+0x14f/0x240 [ 164.530008][ C0] ? run_local_timers+0x120/0x120 [ 164.535022][ C0] rcu_gp_kthread+0xed8/0x1770 [ 164.539963][ C0] kthread+0x332/0x350 [ 164.545327][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 164.550435][ C0] ? kthread_blkcg+0xe0/0xe0 [ 164.555020][ C0] ret_from_fork+0x24/0x30 [ 164.559437][ C0] NMI backtrace for cpu 0 [ 164.563758][ C0] CPU: 0 PID: 8102 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 164.571996][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 164.582033][ C0] Call Trace: [ 164.585302][ C0] [ 164.588153][ C0] dump_stack+0x1fb/0x318 [ 164.592472][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 164.597306][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 164.603456][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 164.609948][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 164.615919][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 164.621793][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 164.626896][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 164.632082][ C0] ? trace_hardirqs_off+0x74/0x80 [ 164.637093][ C0] update_process_times+0x12d/0x180 [ 164.642279][ C0] tick_sched_timer+0x263/0x420 [ 164.647130][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 164.652664][ C0] __hrtimer_run_queues+0x403/0x840 [ 164.657888][ C0] hrtimer_interrupt+0x38c/0xda0 [ 164.662854][ C0] ? debug_smp_processor_id+0x9/0x20 [ 164.668163][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 164.674408][ C0] apic_timer_interrupt+0xf/0x20 [ 164.679353][ C0] [ 164.682288][ C0] RIP: 0010:free_thread_stack+0x18b/0x590 [ 164.687994][ C0] Code: ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 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 eb 9f 69 00 48 8b 1b e9 82 ff ff ff e8 5e 2a 2e [ 164.707673][ C0] RSP: 0018:ffffc90001f07768 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 164.716071][ C0] RAX: 1ffff11014eb57b1 RBX: ffff8880a75abd88 RCX: ffff8880a49ae300 [ 164.724126][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00028eeec0 [ 164.732085][ C0] RBP: ffffc90001f077a0 R08: 000000000003a728 R09: fffffbfff120248a [ 164.740043][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a75abe20 [ 164.748007][ C0] R13: dffffc0000000000 R14: 1ffff11014eb57c4 R15: ffff88809443f428 [ 164.756000][ C0] ? free_thread_stack+0x168/0x590 [ 164.761112][ C0] put_task_stack+0xa3/0x130 [ 164.765700][ C0] finish_task_switch+0x3f1/0x550 [ 164.770717][ C0] __schedule+0x9a8/0xcc0 [ 164.775065][ C0] ? ___preempt_schedule+0x16/0x18 [ 164.780163][ C0] preempt_schedule+0xdb/0x120 [ 164.784916][ C0] ___preempt_schedule+0x16/0x18 [ 164.789848][ C0] _raw_spin_unlock+0x3a/0x40 [ 164.794517][ C0] copy_page_range+0x2487/0x29a0 [ 164.799478][ C0] ? __vma_link_rb+0x839/0x860 [ 164.804233][ C0] dup_mmap+0xa01/0xe00 [ 164.808386][ C0] dup_mm+0x9e/0x340 [ 164.812268][ C0] copy_process+0x1e49/0x5510 [ 164.816979][ C0] _do_fork+0x13e/0x660 [ 164.821122][ C0] ? check_preemption_disabled+0xb4/0x260 [ 164.826824][ C0] ? debug_smp_processor_id+0x9/0x20 [ 164.832100][ C0] ? debug_smp_processor_id+0x1c/0x20 [ 164.837809][ C0] __x64_sys_clone+0x20b/0x250 [ 164.842601][ C0] do_syscall_64+0xf7/0x1c0 [ 164.847135][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 164.853025][ C0] RIP: 0033:0x458c4a [ 164.856965][ C0] Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 0c 25 10 00 00 00 31 d2 4d 8d 91 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 f5 00 00 00 85 c0 41 89 c5 0f 85 fc 00 00 [ 164.876659][ C0] RSP: 002b:00007ffe26c62e40 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 164.885062][ C0] RAX: ffffffffffffffda RBX: 00007ffe26c62e40 RCX: 0000000000458c4a [ 164.893146][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 164.901106][ C0] RBP: 00007ffe26c62e80 R08: 0000000000000001 R09: 0000000001046940 [ 164.909078][ C0] R10: 0000000001046c10 R11: 0000000000000246 R12: 0000000000000001 [ 164.917035][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe26c62ed0