[ 42.201781][ T23] audit: type=1800 audit(1575353432.185:29): pid=7980 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts. 2019/12/03 06:10:42 fuzzer started 2019/12/03 06:10:44 dialing manager at 10.128.0.26:38907 2019/12/03 06:10:44 syscalls: 2697 2019/12/03 06:10:44 code coverage: enabled 2019/12/03 06:10:44 comparison tracing: enabled 2019/12/03 06:10:44 extra coverage: extra coverage is not supported by the kernel 2019/12/03 06:10:44 setuid sandbox: enabled 2019/12/03 06:10:44 namespace sandbox: enabled 2019/12/03 06:10:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 06:10:44 fault injection: enabled 2019/12/03 06:10:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 06:10:44 net packet injection: enabled 2019/12/03 06:10:44 net device setup: enabled 2019/12/03 06:10:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 06:10:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:10:45 executing program 0: r0 = socket$nl_route(0x10, 0x3, 0x0) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet_udp(0x2, 0x2, 0x0) close(r2) socket(0x840000000002, 0x3, 0xff) setsockopt$SO_BINDTODEVICE(r2, 0x1, 0x19, &(0x7f0000000080)='ip6_vti0\x00 \x00', 0x10) connect$inet(r2, &(0x7f0000000200)={0x2, 0x0, @initdev}, 0x10) write$binfmt_elf32(r2, &(0x7f00000000c0)=ANY=[@ANYBLOB="4ef27f454c4600000033006c00000000000000004423050100000000002b0beb000100000009000400008d994f3600000080000000000000"], 0x38) 06:10:45 executing program 1: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TIOCSIG(r0, 0x40045436, 0x0) syzkaller login: [ 55.703058][ T8148] IPVS: ftp: loaded support on port[0] = 21 06:10:45 executing program 2: r0 = openat$adsp1(0xffffffffffffff9c, &(0x7f0000000000)='/dev/adsp1\x00', 0x2, 0x0) ioctl$SNDCTL_DSP_SPEED(r0, 0xc0045002, &(0x7f0000000080)) ioctl$SNDCTL_DSP_CHANNELS(r0, 0xc0045006, &(0x7f00000001c0)=0x7) [ 55.848904][ T8148] chnl_net:caif_netlink_parms(): no params data found [ 55.883704][ T8150] IPVS: ftp: loaded support on port[0] = 21 [ 55.898020][ T8148] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.905216][ T8148] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.913524][ T8148] device bridge_slave_0 entered promiscuous mode [ 55.923912][ T8148] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.931101][ T8148] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.939204][ T8148] device bridge_slave_1 entered promiscuous mode [ 55.967083][ T8148] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.981237][ T8148] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.010335][ T8148] team0: Port device team_slave_0 added [ 56.018877][ T8148] team0: Port device team_slave_1 added [ 56.079736][ T8148] device hsr_slave_0 entered promiscuous mode 06:10:46 executing program 3: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000040)={0xffffffffffffffff}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000000)=0x8, 0x4) [ 56.195466][ T8148] device hsr_slave_1 entered promiscuous mode [ 56.270314][ T8153] IPVS: ftp: loaded support on port[0] = 21 06:10:46 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_ENABLE_CAP_CPU(r2, 0xc008ae88, &(0x7f00000000c0)={0x7a, 0x4, [0x1db], [0x3a]}) [ 56.348143][ T8155] IPVS: ftp: loaded support on port[0] = 21 [ 56.361360][ T8150] chnl_net:caif_netlink_parms(): no params data found [ 56.378131][ T8148] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.458952][ T8148] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.537143][ T8148] netdevsim netdevsim0 netdevsim2: renamed from eth2 06:10:46 executing program 5: unshare(0x400) r0 = memfd_create(&(0x7f0000000140)='lotrusted\x1a\x00', 0x0) r1 = syz_open_dev$sndseq(&(0x7f00000003c0)='/dev/snd/seq\x00', 0x0, 0x1) r2 = dup2(r1, r0) writev(r2, &(0x7f0000000040)=[{&(0x7f00000002c0)='3', 0x1}], 0x1) ppoll(&(0x7f0000000200)=[{r2}], 0x1, &(0x7f0000000280), 0x0, 0x0) [ 56.607217][ T8148] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.691218][ T8158] IPVS: ftp: loaded support on port[0] = 21 [ 56.697419][ T8150] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.704472][ T8150] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.716352][ T8150] device bridge_slave_0 entered promiscuous mode [ 56.740377][ T8150] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.748975][ T8150] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.756725][ T8150] device bridge_slave_1 entered promiscuous mode [ 56.784646][ T8160] IPVS: ftp: loaded support on port[0] = 21 [ 56.806829][ T8150] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.819581][ T8150] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.829747][ T8148] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.836883][ T8148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.844635][ T8148] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.851714][ T8148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.889297][ T3898] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.897733][ T3898] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.928562][ T8150] team0: Port device team_slave_0 added [ 56.971766][ T8150] team0: Port device team_slave_1 added [ 57.030303][ T8155] chnl_net:caif_netlink_parms(): no params data found [ 57.107381][ T8150] device hsr_slave_0 entered promiscuous mode [ 57.156012][ T8150] device hsr_slave_1 entered promiscuous mode [ 57.195249][ T8150] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.207242][ T8153] chnl_net:caif_netlink_parms(): no params data found [ 57.227286][ T8158] chnl_net:caif_netlink_parms(): no params data found [ 57.268098][ T8155] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.275296][ T8155] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.282839][ T8155] device bridge_slave_0 entered promiscuous mode [ 57.326390][ T8155] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.333987][ T8155] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.341847][ T8155] device bridge_slave_1 entered promiscuous mode [ 57.364877][ T8158] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.372376][ T8158] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.380076][ T8158] device bridge_slave_0 entered promiscuous mode [ 57.392765][ T8160] chnl_net:caif_netlink_parms(): no params data found [ 57.401855][ T8153] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.409078][ T8153] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.416834][ T8153] device bridge_slave_0 entered promiscuous mode [ 57.437732][ T8153] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.444915][ T8153] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.456143][ T8153] device bridge_slave_1 entered promiscuous mode [ 57.462990][ T8158] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.470322][ T8158] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.480707][ T8158] device bridge_slave_1 entered promiscuous mode [ 57.500623][ T8148] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.509314][ T8155] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.520194][ T8150] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.581746][ T8150] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.650385][ T8155] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.666467][ T8150] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.718176][ T8158] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.733268][ T8153] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.746710][ T8150] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.791143][ T8158] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.804931][ T8153] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.830071][ T8160] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.838007][ T8160] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.845874][ T8160] device bridge_slave_0 entered promiscuous mode [ 57.861976][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.870191][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.879891][ T8148] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.888185][ T8155] team0: Port device team_slave_0 added [ 57.911227][ T8160] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.919302][ T8160] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.926985][ T8160] device bridge_slave_1 entered promiscuous mode [ 57.934666][ T8155] team0: Port device team_slave_1 added [ 57.947907][ T8153] team0: Port device team_slave_0 added [ 57.956129][ T8158] team0: Port device team_slave_0 added [ 57.963029][ T8158] team0: Port device team_slave_1 added [ 57.979300][ T8153] team0: Port device team_slave_1 added [ 58.001418][ T8150] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.010414][ T3898] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.019558][ T3898] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.029703][ T3898] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.036815][ T3898] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.044476][ T3898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.054015][ T3898] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.062481][ T3898] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.069527][ T3898] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.092173][ T8160] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.149751][ T8158] device hsr_slave_0 entered promiscuous mode [ 58.195489][ T8158] device hsr_slave_1 entered promiscuous mode [ 58.235256][ T8158] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.250419][ T8150] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.259084][ T8160] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.279654][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.288722][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.296686][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.304260][ T3189] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.367990][ T8155] device hsr_slave_0 entered promiscuous mode [ 58.405572][ T8155] device hsr_slave_1 entered promiscuous mode [ 58.448017][ T8155] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.463597][ T8160] team0: Port device team_slave_0 added [ 58.475263][ T8160] team0: Port device team_slave_1 added [ 58.486000][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.494526][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.503183][ T8161] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.510272][ T8161] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.518506][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.527184][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.535601][ T8161] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.542630][ T8161] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.551366][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.560119][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.568520][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.576625][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.647774][ T8153] device hsr_slave_0 entered promiscuous mode [ 58.675614][ T8153] device hsr_slave_1 entered promiscuous mode [ 58.715883][ T8153] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.743856][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.753677][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.763488][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.772188][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.780936][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.789465][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.798325][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.807315][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.816267][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.824652][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.833010][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 58.841196][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.849640][ T8158] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 58.891692][ T8158] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 58.944024][ T8148] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.956605][ T8148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.971987][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.980974][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 58.989526][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.999169][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.007791][ T47] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.067748][ T8160] device hsr_slave_0 entered promiscuous mode [ 59.095404][ T8160] device hsr_slave_1 entered promiscuous mode [ 59.145273][ T8160] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.156761][ T8150] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.167240][ T8158] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.207497][ T8158] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.246818][ T8155] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.309051][ T8160] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.360785][ T8160] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.397369][ T8155] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.448537][ T8155] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.501186][ T8155] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.553148][ T8153] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 59.587370][ T8160] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.663843][ T8150] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.681312][ T8153] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 59.720789][ T8160] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 59.766561][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.774004][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.781543][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.788971][ T8161] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.799250][ T8148] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.816019][ T8153] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 59.858147][ T8153] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 165.015087][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 165.022069][ C1] (detected by 1, t=10502 jiffies, g=6209, q=240) [ 165.028557][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953656-4294943153), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 165.041905][ C1] syz-executor.5 R running task 24840 8160 8159 0x0000400a [ 165.049792][ C1] Call Trace: [ 165.053066][ C1] [ 165.055913][ C1] sched_show_task+0x40f/0x560 [ 165.060670][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 165.065949][ C1] update_process_times+0x12d/0x180 [ 165.071133][ C1] tick_sched_timer+0x263/0x420 [ 165.075971][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.081504][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.086704][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.091646][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.096922][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.102453][ C1] apic_timer_interrupt+0xf/0x20 [ 165.107373][ C1] [ 165.110305][ C1] RIP: 0010:free_thread_stack+0x13d/0x590 [ 165.116011][ C1] Code: 00 00 e8 06 a2 60 00 e9 5d 04 00 00 e8 5c 2d 2e 00 48 89 df 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 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 [ 165.135602][ C1] RSP: 0018:ffffc900021e7b58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.143998][ C1] RAX: 0000000000000001 RBX: ffffea00029b6c80 RCX: 0000000000000000 [ 165.151957][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00029b6c80 [ 165.159915][ C1] RBP: ffffc900021e7b90 R08: 000000000003a768 R09: fffffbfff120248a [ 165.167870][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a3388920 [ 165.175828][ C1] R13: dffffc0000000000 R14: 1ffff11014671124 R15: ffff8880a9247568 [ 165.183803][ C1] ? free_thread_stack+0x12e/0x590 [ 165.188907][ C1] put_task_stack+0xa3/0x130 [ 165.193486][ C1] finish_task_switch+0x3f1/0x550 [ 165.198499][ C1] __schedule+0x9a8/0xcc0 [ 165.202823][ C1] preempt_schedule_irq+0xc1/0x140 [ 165.207920][ C1] retint_kernel+0x1b/0x2b [ 165.212325][ C1] RIP: 0010:kmem_cache_alloc+0x1a8/0x2e0 [ 165.217943][ C1] 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 [ 165.237531][ C1] RSP: 0018:ffffc900021e7da8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 165.245925][ C1] RAX: ffff88809eeeaa14 RBX: 0000000000000cc0 RCX: ffff88809eeea180 [ 165.253881][ C1] RDX: 0000000000000000 RSI: ffffffff86365b1b RDI: 0000000000000286 [ 165.261838][ C1] RBP: ffffc900021e7de0 R08: ffff88809eeea9d8 R09: ffffed10153f9d01 [ 165.269793][ C1] R10: ffffed10153f9d01 R11: 0000000000000000 R12: ffff8880a9d2b540 [ 165.277752][ C1] R13: ffff8880a9d2b540 R14: ffff888093006a80 R15: 0000000000000cc0 [ 165.285738][ C1] ? sock_alloc_inode+0x1b/0xc0 [ 165.290579][ C1] ? sock_alloc_inode+0x1b/0xc0 [ 165.295412][ C1] ? sockfs_init_fs_context+0xb0/0xb0 [ 165.300768][ C1] sock_alloc_inode+0x1b/0xc0 [ 165.305443][ C1] ? sockfs_init_fs_context+0xb0/0xb0 [ 165.310803][ C1] new_inode_pseudo+0x68/0x240 [ 165.315553][ C1] __sock_create+0x12d/0x910 [ 165.320133][ C1] __sys_socket+0xe7/0x2e0 [ 165.324538][ C1] __x64_sys_socket+0x7a/0x90 [ 165.329205][ C1] do_syscall_64+0xf7/0x1c0 [ 165.333694][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.339575][ C1] RIP: 0033:0x45d1c7 [ 165.343465][ C1] Code: 00 00 00 49 89 ca b8 36 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4a 8b fb ff c3 66 0f 1f 84 00 00 00 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2d 8b fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 165.363053][ C1] RSP: 002b:00007ffc43fde6b8 EFLAGS: 00000202 ORIG_RAX: 0000000000000029 [ 165.371458][ C1] RAX: ffffffffffffffda RBX: 0000000000a72200 RCX: 000000000045d1c7 [ 165.379415][ C1] RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001 [ 165.387371][ C1] RBP: 00000000004bfb7e R08: 0000000000000000 R09: 00007ffc43fde7f8 [ 165.395326][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000004bfb7e [ 165.403287][ C1] R13: 0000000000000000 R14: 0000000000000003 R15: 00007ffc43fde7f8 [ 165.411271][ C1] rcu: rcu_preempt kthread starved for 10541 jiffies! g6209 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 165.422352][ C1] rcu: RCU grace-period kthread stack dump: [ 165.428242][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.436147][ C1] Call Trace: [ 165.439444][ C1] __schedule+0x9a0/0xcc0 [ 165.443774][ C1] schedule+0x181/0x210 [ 165.447920][ C1] schedule_timeout+0x14f/0x240 [ 165.452759][ C1] ? run_local_timers+0x120/0x120 [ 165.457776][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.462537][ C1] kthread+0x332/0x350 [ 165.466593][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.471777][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.476353][ C1] ret_from_fork+0x24/0x30