[ 49.321251][ T25] audit: type=1800 audit(1575432793.266:25): pid=8104 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 49.352333][ T25] audit: type=1800 audit(1575432793.276:26): pid=8104 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 49.379414][ T25] audit: type=1800 audit(1575432793.276:27): pid=8104 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 49.403208][ T25] audit: type=1800 audit(1575432793.276:28): pid=8104 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.144' (ECDSA) to the list of known hosts. 2019/12/04 04:13:21 fuzzer started 2019/12/04 04:13:22 dialing manager at 10.128.0.26:42111 2019/12/04 04:13:23 syscalls: 2689 2019/12/04 04:13:23 code coverage: enabled 2019/12/04 04:13:23 comparison tracing: enabled 2019/12/04 04:13:23 extra coverage: extra coverage is not supported by the kernel 2019/12/04 04:13:23 setuid sandbox: enabled 2019/12/04 04:13:23 namespace sandbox: enabled 2019/12/04 04:13:23 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 04:13:23 fault injection: enabled 2019/12/04 04:13:23 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 04:13:23 net packet injection: enabled 2019/12/04 04:13:23 net device setup: enabled 2019/12/04 04:13:23 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 04:13:23 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:13:23 executing program 0: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000091fa8)={0x26, 'aead\x00', 0x0, 0x0, 'echainiv(echainiv(aegis128-aesni))\x00'}, 0x58) 04:13:24 executing program 1: unshare(0x2040400) creat(&(0x7f0000000040)='./file0\x00', 0x0) r0 = open(&(0x7f0000fa3000)='./file0\x00', 0x0, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000000140)={0x1a, 0x1, &(0x7f0000000200)=@raw=[@ldst], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, r0}, 0x78) syzkaller login: [ 60.160794][ T8270] IPVS: ftp: loaded support on port[0] = 21 [ 60.269438][ T8270] chnl_net:caif_netlink_parms(): no params data found 04:13:24 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000180)='net/ip_mr_cache\x00') preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000280)=""/147, 0x93}], 0x1, 0x9) [ 60.351816][ T8270] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.364391][ T8270] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.372368][ T8270] device bridge_slave_0 entered promiscuous mode [ 60.389738][ T8273] IPVS: ftp: loaded support on port[0] = 21 [ 60.398212][ T8270] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.405481][ T8270] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.418553][ T8270] device bridge_slave_1 entered promiscuous mode [ 60.469145][ T8270] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.492227][ T8270] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.576160][ T8270] team0: Port device team_slave_0 added [ 60.583538][ T8270] team0: Port device team_slave_1 added [ 60.619475][ T8273] chnl_net:caif_netlink_parms(): no params data found [ 60.630387][ T8276] IPVS: ftp: loaded support on port[0] = 21 04:13:24 executing program 3: r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) setsockopt$inet_sctp6_SCTP_ASSOCINFO(r0, 0x84, 0x19, 0x0, 0x8) [ 60.707369][ T8270] device hsr_slave_0 entered promiscuous mode [ 60.773709][ T8270] device hsr_slave_1 entered promiscuous mode [ 60.857582][ T8278] IPVS: ftp: loaded support on port[0] = 21 04:13:24 executing program 4: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_mreqsrc(r0, 0x0, 0x27, &(0x7f000001b000)={@multicast2, @remote, @loopback}, 0xc) preadv(0xffffffffffffffff, &(0x7f0000001400)=[{&(0x7f0000000040)=""/113, 0x200000b1}], 0x1, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000140)='net/mcfilter\x00') preadv(r1, &(0x7f0000000480), 0x10000000000002a1, 0x0) [ 60.899840][ T8273] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.907620][ T8273] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.915347][ T8273] device bridge_slave_0 entered promiscuous mode [ 60.930544][ T8273] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.943495][ T8273] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.952266][ T8273] device bridge_slave_1 entered promiscuous mode [ 60.994213][ T8270] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.049233][ T8270] netdevsim netdevsim0 netdevsim1: renamed from eth1 04:13:25 executing program 5: r0 = socket$unix(0x1, 0x2, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000000)=@newlink={0x2c, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_GROUP={0x8}, @IFLA_IFALIASn={0x4}]}, 0x2c}}, 0x0) [ 61.149249][ T8270] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.207811][ T8273] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.227308][ T8270] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.284952][ T8280] IPVS: ftp: loaded support on port[0] = 21 [ 61.292357][ T8273] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.319145][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 61.339499][ T8273] team0: Port device team_slave_0 added [ 61.372344][ T8273] team0: Port device team_slave_1 added [ 61.395811][ T8278] chnl_net:caif_netlink_parms(): no params data found [ 61.485756][ T8273] device hsr_slave_0 entered promiscuous mode [ 61.523800][ T8273] device hsr_slave_1 entered promiscuous mode [ 61.584325][ T8273] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.630441][ T8276] chnl_net:caif_netlink_parms(): no params data found [ 61.659945][ T8278] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.668642][ T8278] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.676428][ T8278] device bridge_slave_0 entered promiscuous mode [ 61.702370][ T8278] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.709780][ T8278] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.717921][ T8278] device bridge_slave_1 entered promiscuous mode [ 61.771234][ T8278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.810448][ T8278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.830586][ T8280] chnl_net:caif_netlink_parms(): no params data found [ 61.847076][ T8273] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 61.895804][ T8276] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.903306][ T8276] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.911160][ T8276] device bridge_slave_0 entered promiscuous mode [ 61.920211][ T8276] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.927787][ T8276] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.936092][ T8276] device bridge_slave_1 entered promiscuous mode [ 61.959371][ T8276] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.973125][ T8273] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.006539][ T8278] team0: Port device team_slave_0 added [ 62.013456][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 62.029733][ T8276] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.039003][ T8273] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.086020][ T8278] team0: Port device team_slave_1 added [ 62.091740][ T8273] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.157140][ T8276] team0: Port device team_slave_0 added [ 62.181157][ T8276] team0: Port device team_slave_1 added [ 62.205538][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.212679][ T8280] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.221190][ T8280] device bridge_slave_0 entered promiscuous mode [ 62.232593][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.240525][ T8280] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.248487][ T8280] device bridge_slave_1 entered promiscuous mode [ 62.326218][ T8278] device hsr_slave_0 entered promiscuous mode [ 62.393698][ T8278] device hsr_slave_1 entered promiscuous mode [ 62.433496][ T8278] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.449859][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.458455][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.466307][ T8282] device bridge_slave_0 entered promiscuous mode [ 62.516935][ T8276] device hsr_slave_0 entered promiscuous mode [ 62.583838][ T8276] device hsr_slave_1 entered promiscuous mode [ 62.623481][ T8276] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.645073][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.652172][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.661699][ T8282] device bridge_slave_1 entered promiscuous mode [ 62.676289][ T8270] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.690914][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.701646][ T8280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.723571][ T8270] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.747398][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.760632][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.769372][ T8286] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.779289][ T8280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.801474][ T8280] team0: Port device team_slave_0 added [ 62.814552][ T8278] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.858797][ T8278] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.918651][ T8278] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.976638][ T8280] team0: Port device team_slave_1 added [ 62.982404][ T8278] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 63.051471][ T3372] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.060242][ T3372] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.069281][ T3372] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.076510][ T3372] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.085712][ T3372] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.096753][ T8282] team0: Port device team_slave_0 added [ 63.102540][ T8276] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.170659][ T8282] team0: Port device team_slave_1 added [ 63.180639][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.189449][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.198743][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.205851][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.214144][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.222753][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.231407][ T8276] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.296186][ T8276] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.335858][ T8276] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.426131][ T8280] device hsr_slave_0 entered promiscuous mode [ 63.473865][ T8280] device hsr_slave_1 entered promiscuous mode [ 63.513562][ T8280] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.540524][ T8270] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.551168][ T8270] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.567532][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.576971][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.585782][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.594417][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.602643][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.611227][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.620074][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.628842][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.637735][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.645525][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.687176][ T8273] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.745198][ T8282] device hsr_slave_0 entered promiscuous mode [ 63.793841][ T8282] device hsr_slave_1 entered promiscuous mode [ 63.833769][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.849698][ T8270] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.871891][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.880808][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.888905][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.896640][ T3692] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.920231][ T8273] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.933823][ T8280] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.988487][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.002643][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.011374][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.018563][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.026478][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.035171][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.043496][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.050549][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.059153][ T8280] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.130758][ T8280] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 64.176264][ T8280] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 64.229466][ T3372] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.237633][ T3372] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.252136][ T8282] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 169.283347][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 169.290294][ C0] rcu: 0-....: (10499 ticks this GP) idle=8ee/1/0x4000000000000002 softirq=11550/11550 fqs=2796 [ 169.301121][ C0] (t=10501 jiffies g=6765 q=131) [ 169.306136][ C0] rcu: rcu_preempt kthread starved for 4910 jiffies! g6765 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 169.317217][ C0] rcu: RCU grace-period kthread stack dump: [ 169.323088][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 169.331061][ C0] Call Trace: [ 169.334342][ C0] __schedule+0x9a0/0xcc0 [ 169.338664][ C0] schedule+0x181/0x210 [ 169.342816][ C0] schedule_timeout+0x14f/0x240 [ 169.347652][ C0] ? run_local_timers+0x120/0x120 [ 169.352668][ C0] rcu_gp_kthread+0xed8/0x1770 [ 169.357514][ C0] kthread+0x332/0x350 [ 169.361570][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 169.366664][ C0] ? kthread_blkcg+0xe0/0xe0 [ 169.371240][ C0] ret_from_fork+0x24/0x30 [ 169.375652][ C0] NMI backtrace for cpu 0 [ 169.379990][ C0] CPU: 0 PID: 8270 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 169.388245][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.398291][ C0] Call Trace: [ 169.401563][ C0] [ 169.404406][ C0] dump_stack+0x1fb/0x318 [ 169.408727][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 169.413560][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 169.419713][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 169.425762][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 169.431727][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 169.437609][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 169.442709][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 169.447896][ C0] ? trace_hardirqs_off+0x74/0x80 [ 169.452908][ C0] update_process_times+0x12d/0x180 [ 169.458111][ C0] tick_sched_timer+0x263/0x420 [ 169.462944][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 169.468477][ C0] __hrtimer_run_queues+0x403/0x840 [ 169.473673][ C0] hrtimer_interrupt+0x38c/0xda0 [ 169.478614][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.483887][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 169.489415][ C0] apic_timer_interrupt+0xf/0x20 [ 169.494330][ C0] [ 169.497257][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 [ 169.505130][ C0] Code: 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d 74 25 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 [ 169.524718][ C0] RSP: 0018:ffffc90001e678d0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 169.533110][ C0] RAX: 1ffff11015037fc1 RBX: ffffea0002a0d780 RCX: ffff888085da2500 [ 169.541067][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a0d780 [ 169.549027][ C0] RBP: ffffc90001e67910 R08: dffffc0000000000 R09: fffffbfff120248a [ 169.556984][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a81bfea0 [ 169.565030][ C0] R13: dffffc0000000000 R14: 1ffff11015037fd4 R15: ffff888085f6d6a8 [ 169.573009][ C0] ? free_thread_stack+0x124/0x590 [ 169.578130][ C0] put_task_stack+0xa3/0x130 [ 169.582705][ C0] finish_task_switch+0x3f1/0x550 [ 169.587737][ C0] __schedule+0x9a8/0xcc0 [ 169.592069][ C0] preempt_schedule_irq+0xc1/0x140 [ 169.597164][ C0] retint_kernel+0x1b/0x2b [ 169.601567][ C0] RIP: 0010:kmem_cache_alloc+0x1a8/0x2e0 [ 169.607355][ C0] Code: 8b 7d d0 57 9d 0f 1f 44 00 00 e8 83 b1 ca ff eb 1e e8 1c af ca ff 48 83 3d 7c 10 59 07 00 0f 84 33 01 00 00 48 8b 7d d0 57 9d <0f> 1f 44 00 00 41 0f 18 0e e9 21 00 00 00 89 d8 c1 e8 08 83 e0 01 [ 169.627027][ C0] RSP: 0018:ffffc90001e67b20 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 169.635420][ C0] RAX: ffff888085da2d94 RBX: 0000000000000cc0 RCX: ffffffff815c0597 [ 169.643376][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000286 [ 169.651346][ C0] RBP: ffffc90001e67b58 R08: ffff888085da2d58 R09: fffffbfff13c8d1f [ 169.659303][ C0] R10: fffffbfff13c8d1f R11: 0000000000000000 R12: ffff8880aa9ec540 [ 169.668219][ C0] R13: ffff8880972cd1c0 R14: ffff888089a56eb0 R15: 0000000000000cc0 [ 169.676196][ C0] ? mark_lock+0x107/0x1650 [ 169.680906][ C0] ? dup_mmap+0x587/0xe00 [ 169.685224][ C0] dup_mmap+0x587/0xe00 [ 169.689468][ C0] dup_mm+0x9e/0x340 [ 169.693455][ C0] copy_process+0x1e49/0x5510 [ 169.698144][ C0] _do_fork+0x13e/0x660 [ 169.702389][ C0] ? check_preemption_disabled+0xb4/0x260 [ 169.708237][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.713708][ C0] ? debug_smp_processor_id+0x1c/0x20 [ 169.720281][ C0] __x64_sys_clone+0x20b/0x250 [ 169.725394][ C0] do_syscall_64+0xf7/0x1c0 [ 169.730072][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.737035][ C0] RIP: 0033:0x458c4a [ 169.740918][ 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 [ 169.760534][ C0] RSP: 002b:00007ffcca500a70 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 169.768930][ C0] RAX: ffffffffffffffda RBX: 00007ffcca500a70 RCX: 0000000000458c4a [ 169.776891][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 169.785208][ C0] RBP: 00007ffcca500ab0 R08: 0000000000000001 R09: 0000000001112940 [ 169.793163][ C0] R10: 0000000001112c10 R11: 0000000000000246 R12: 0000000000000001 [ 169.801123][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffcca500b00