[ 41.443663][ T26] audit: type=1800 audit(1575318572.435:27): pid=7954 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 41.478152][ T26] audit: type=1800 audit(1575318572.435:28): pid=7954 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. [ 42.143287][ T26] audit: type=1800 audit(1575318573.215:29): pid=7954 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 42.162950][ T26] audit: type=1800 audit(1575318573.215:30): pid=7954 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 '10.128.1.27' (ECDSA) to the list of known hosts. 2019/12/02 20:29:40 fuzzer started 2019/12/02 20:29:41 dialing manager at 10.128.0.26:38907 2019/12/02 20:29:41 syscalls: 2697 2019/12/02 20:29:41 code coverage: enabled 2019/12/02 20:29:41 comparison tracing: enabled 2019/12/02 20:29:41 extra coverage: extra coverage is not supported by the kernel 2019/12/02 20:29:41 setuid sandbox: enabled 2019/12/02 20:29:41 namespace sandbox: enabled 2019/12/02 20:29:41 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/02 20:29:41 fault injection: enabled 2019/12/02 20:29:41 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/02 20:29:41 net packet injection: enabled 2019/12/02 20:29:41 net device setup: enabled 2019/12/02 20:29:41 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/02 20:29:41 devlink PCI setup: PCI device 0000:00:10.0 is not available 20:29:42 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000180)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f0000000280)) r1 = syz_open_pts(r0, 0x0) ioctl$TCSETSF(r1, 0x5412, &(0x7f0000000040)={0xd}) 20:29:43 executing program 1: r0 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r0, 0x1000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") r1 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r1, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)=@newsa={0xf0, 0x10, 0x713, 0x0, 0x0, {{@in6=@dev, @in=@initdev={0xac, 0x1e, 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0x2, 0x80}, {@in6=@mcast1}, @in=@dev, {}, {}, {}, 0x0, 0x0, 0x2}}, 0xf0}}, 0x0) syzkaller login: [ 51.985882][ T8121] IPVS: ftp: loaded support on port[0] = 21 [ 52.051780][ T8123] IPVS: ftp: loaded support on port[0] = 21 20:29:43 executing program 2: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x4, 0x32, 0xffffffffffffffff, 0x0) r0 = socket$inet6_sctp(0xa, 0x80000000000001, 0x84) getsockopt$inet6_int(r0, 0x29, 0x37, 0x0, &(0x7f0000013000)=0xffffffffffffff85) [ 52.195079][ T8121] chnl_net:caif_netlink_parms(): no params data found [ 52.247987][ T8123] chnl_net:caif_netlink_parms(): no params data found [ 52.296439][ T8121] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.312781][ T8121] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.320468][ T8121] device bridge_slave_0 entered promiscuous mode [ 52.354211][ T8121] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.361383][ T8121] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.371289][ T8127] IPVS: ftp: loaded support on port[0] = 21 [ 52.379336][ T8121] device bridge_slave_1 entered promiscuous mode [ 52.404224][ T8123] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.411391][ T8123] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.419640][ T8123] device bridge_slave_0 entered promiscuous mode 20:29:43 executing program 3: recvmmsg(0xffffffffffffffff, &(0x7f0000001ac0)=[{{0x0, 0x0, 0x0, 0x0, &(0x7f0000001300)=""/236, 0xec}}], 0x1, 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f00000001c0)='net/igmp\x00') preadv(r0, &(0x7f00000017c0), 0x1000000000000277, 0x359) [ 52.446637][ T8123] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.454512][ T8123] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.462301][ T8123] device bridge_slave_1 entered promiscuous mode [ 52.515939][ T8121] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.554873][ T8121] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.602825][ T8123] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.619733][ T8121] team0: Port device team_slave_0 added [ 52.646357][ T8121] team0: Port device team_slave_1 added [ 52.657213][ T8129] IPVS: ftp: loaded support on port[0] = 21 [ 52.664533][ T8123] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 20:29:43 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) socket$kcm(0x2, 0x2, 0x73) r2 = socket$kcm(0x2, 0x2, 0x73) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) dup2(r3, r2) [ 52.775178][ T8121] device hsr_slave_0 entered promiscuous mode [ 52.802821][ T8121] device hsr_slave_1 entered promiscuous mode [ 52.901907][ T8123] team0: Port device team_slave_0 added [ 52.915054][ T8127] chnl_net:caif_netlink_parms(): no params data found [ 52.927770][ T8132] IPVS: ftp: loaded support on port[0] = 21 [ 52.942918][ T8123] team0: Port device team_slave_1 added 20:29:44 executing program 5: r0 = syz_open_procfs(0xffffffffffffffff, &(0x7f00000002c0)='projid_map\x00') lseek(r0, 0x12, 0x0) [ 53.036293][ T8123] device hsr_slave_0 entered promiscuous mode [ 53.122943][ T8123] device hsr_slave_1 entered promiscuous mode [ 53.182639][ T8123] debugfs: Directory 'hsr0' with parent '/' already present! [ 53.203862][ T8121] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 53.285498][ T8127] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.293347][ T8127] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.300998][ T8127] device bridge_slave_0 entered promiscuous mode [ 53.308304][ T8121] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 53.401786][ T8129] chnl_net:caif_netlink_parms(): no params data found [ 53.410822][ T8127] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.419512][ T8127] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.420282][ T8134] IPVS: ftp: loaded support on port[0] = 21 [ 53.433651][ T8127] device bridge_slave_1 entered promiscuous mode [ 53.444289][ T8121] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 53.495458][ T8121] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 53.577946][ T8123] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 53.609887][ T8127] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.623357][ T8127] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.652013][ T8123] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 53.674507][ T8129] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.681588][ T8129] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.691170][ T8129] device bridge_slave_0 entered promiscuous mode [ 53.701057][ T8129] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.708304][ T8129] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.715990][ T8129] device bridge_slave_1 entered promiscuous mode [ 53.735341][ T8127] team0: Port device team_slave_0 added [ 53.745424][ T8123] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 53.828337][ T8127] team0: Port device team_slave_1 added [ 53.845681][ T8123] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 53.912887][ T8129] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.975353][ T8127] device hsr_slave_0 entered promiscuous mode [ 54.033130][ T8127] device hsr_slave_1 entered promiscuous mode [ 54.072523][ T8127] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.082831][ T8132] chnl_net:caif_netlink_parms(): no params data found [ 54.094178][ T8129] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.170137][ T8134] chnl_net:caif_netlink_parms(): no params data found [ 54.185869][ T8129] team0: Port device team_slave_0 added [ 54.194630][ T8129] team0: Port device team_slave_1 added [ 54.218186][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.226088][ T8132] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.234528][ T8132] device bridge_slave_0 entered promiscuous mode [ 54.248873][ T8121] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.268297][ T8127] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 54.304525][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.311719][ T8132] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.320102][ T8132] device bridge_slave_1 entered promiscuous mode [ 54.348498][ T8127] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 54.408545][ T8127] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 54.514173][ T8129] device hsr_slave_0 entered promiscuous mode [ 54.552879][ T8129] device hsr_slave_1 entered promiscuous mode [ 54.602602][ T8129] debugfs: Directory 'hsr0' with parent '/' already present! [ 54.625323][ T8134] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.632523][ T8134] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.640117][ T8134] device bridge_slave_0 entered promiscuous mode [ 54.648072][ T8134] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.655228][ T8134] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.663147][ T8134] device bridge_slave_1 entered promiscuous mode [ 54.670285][ T8127] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 54.734812][ T8132] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.766991][ T8132] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.779338][ T8121] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.787574][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 54.795892][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.811532][ T8134] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.842068][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 54.850610][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.859187][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.866452][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.874758][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 54.884195][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.892531][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.899569][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.907124][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 54.915815][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 54.924690][ T8129] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 54.978632][ T8129] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 55.025277][ T8134] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.047930][ T8134] team0: Port device team_slave_0 added [ 55.063370][ T8134] team0: Port device team_slave_1 added [ 55.069712][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.078752][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.088088][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.096431][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.106012][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.114489][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.122915][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.131039][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.139429][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.147644][ T8135] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.157188][ T8132] team0: Port device team_slave_0 added [ 55.163055][ T8129] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 55.204364][ T8129] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 55.253029][ T8121] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.305228][ T8134] device hsr_slave_0 entered promiscuous mode [ 55.363667][ T8134] device hsr_slave_1 entered promiscuous mode [ 55.403067][ T8134] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.411893][ T8132] team0: Port device team_slave_1 added [ 55.440417][ T8123] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.535178][ T8132] device hsr_slave_0 entered promiscuous mode [ 55.573423][ T8132] device hsr_slave_1 entered promiscuous mode [ 55.612991][ T8132] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.628085][ T8123] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.655840][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.666797][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.684512][ T8121] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 55.700424][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 55.708557][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 55.732604][ T8134] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 55.765051][ T8134] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 55.805452][ T8134] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 55.855892][ T8134] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 55.897421][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.906694][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.915110][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.922265][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.929937][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.938761][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.947302][ T45] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.954388][ T45] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.964464][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.972251][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.990492][ T8129] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.015732][ T8127] 8021q: adding VLAN 0 to HW filter on device bond0 [ 161.052419][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 161.059424][ C0] (detected by 0, t=10502 jiffies, g=5993, q=92) [ 161.065830][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953253-4294942750), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 161.079295][ C0] syz-executor.4 R running task 24984 8132 8131 0x0000400a [ 161.087193][ C0] Call Trace: [ 161.090463][ C0] [ 161.093314][ C0] sched_show_task+0x40f/0x560 [ 161.098077][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 161.103360][ C0] update_process_times+0x12d/0x180 [ 161.108558][ C0] tick_sched_timer+0x263/0x420 [ 161.113408][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 161.118945][ C0] __hrtimer_run_queues+0x403/0x840 [ 161.124146][ C0] hrtimer_interrupt+0x38c/0xda0 [ 161.129093][ C0] ? debug_smp_processor_id+0x9/0x20 [ 161.134371][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 161.139933][ C0] apic_timer_interrupt+0xf/0x20 [ 161.144870][ C0] [ 161.147810][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x14/0x50 [ 161.153955][ C0] Code: 00 00 00 48 8b 3d 34 e7 cc 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 c2 00 01 1f 00 75 2c 8b 91 80 13 00 00 83 fa 02 75 21 48 8b 91 [ 161.173551][ C0] RSP: 0018:ffffc90002376cb0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 161.181950][ C0] RAX: ffffffff81486ea4 RBX: ffffea0002432180 RCX: ffff88808f524540 [ 161.189914][ C0] RDX: 0000000000000001 RSI: 00000000fffffffc RDI: ffffea0002432180 [ 161.197887][ C0] RBP: ffffc90002376cf0 R08: 000000000003a768 R09: ffffed1012e6e287 [ 161.205844][ C0] R10: ffffed1012e6e287 R11: 0000000000000000 R12: ffff888091f3ea20 [ 161.213804][ C0] R13: dffffc0000000000 R14: 1ffff110123e7d44 R15: ffff888097371428 [ 161.221778][ C0] ? free_thread_stack+0x124/0x590 [ 161.226883][ C0] ? free_thread_stack+0x124/0x590 [ 161.231982][ C0] put_task_stack+0xa3/0x130 [ 161.236560][ C0] finish_task_switch+0x3f1/0x550 [ 161.241579][ C0] __schedule+0x9a8/0xcc0 [ 161.245914][ C0] preempt_schedule_irq+0xc1/0x140 [ 161.251015][ C0] retint_kernel+0x1b/0x2b [ 161.255422][ C0] RIP: 0010:stack_depot_save+0x68/0x470 [ 161.260955][ C0] Code: 89 e9 41 03 01 41 03 71 04 45 03 71 08 44 29 f0 44 89 f3 c1 c3 04 31 c3 41 01 f6 29 de 89 df c1 c7 06 31 f7 44 01 f3 41 29 fe <89> f9 c1 c1 08 44 31 f1 01 df 89 c8 c1 c0 10 29 cb 31 d8 01 f9 29 [ 161.280895][ C0] RSP: 0018:ffffc90002376f00 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 161.289294][ C0] RAX: 0000000043d9e1d7 RBX: 00000000f82ab5f5 RCX: 0000000000da9e48 [ 161.302030][ C0] RDX: 0000000000000dc0 RSI: 00000000e499601b RDI: 00000000df25f44d [ 161.310014][ C0] RBP: ffffc90002376f40 R08: 0000000000000037 R09: ffffc90002376fac [ 161.317984][ C0] R10: 0000000000000023 R11: 0000000000000000 R12: ffffed1012e16d80 [ 161.325948][ C0] R13: ffffc90002376f70 R14: 00000000c015cf57 R15: ffff8880970b6bff [ 161.333941][ C0] __kasan_kmalloc+0x178/0x1b0 [ 161.338693][ C0] ? __kasan_kmalloc+0x11c/0x1b0 [ 161.343616][ C0] ? kasan_slab_alloc+0xf/0x20 [ 161.348369][ C0] ? kmem_cache_alloc+0x1f5/0x2e0 [ 161.353379][ C0] ? __kernfs_new_node+0x97/0x680 [ 161.358421][ C0] ? kernfs_new_node+0x97/0x170 [ 161.363266][ C0] ? __kernfs_create_file+0x4a/0x2f0 [ 161.368538][ C0] ? sysfs_add_file_mode_ns+0x2dc/0x3a0 [ 161.374069][ C0] ? internal_create_group+0x4be/0xd80 [ 161.379514][ C0] ? sysfs_create_groups+0x75/0x130 [ 161.384699][ C0] ? device_add+0xaad/0x1ad0 [ 161.389277][ C0] ? netdev_register_kobject+0x152/0x2f0 [ 161.394894][ C0] ? register_netdevice+0xfc9/0x1830 [ 161.400166][ C0] ? nsim_create+0x1d4/0x230 [ 161.404740][ C0] ? __nsim_dev_port_add+0x289/0x4d0 [ 161.410009][ C0] ? nsim_dev_probe+0xb55/0xef0 [ 161.414846][ C0] ? nsim_bus_probe+0x15/0x20 [ 161.419532][ C0] ? really_probe+0x71c/0xf40 [ 161.424218][ C0] ? driver_probe_device+0xfc/0x260 [ 161.429430][ C0] ? __device_attach_driver+0x336/0x3f0 [ 161.435006][ C0] ? bus_for_each_drv+0x12b/0x180 [ 161.440025][ C0] ? __device_attach+0x1ea/0x390 [ 161.444954][ C0] ? device_initial_probe+0x1a/0x20 [ 161.450141][ C0] ? bus_probe_device+0xb9/0x1f0 [ 161.455063][ C0] ? device_add+0x1710/0x1ad0 [ 161.459726][ C0] ? device_register+0x1d/0x20 [ 161.464476][ C0] ? new_device_store+0x286/0x510 [ 161.469483][ C0] ? bus_attr_store+0x78/0x90 [ 161.474143][ C0] ? sysfs_kf_write+0x281/0x2f0 [ 161.478975][ C0] ? kernfs_fop_write+0x3e4/0x4e0 [ 161.483987][ C0] ? __vfs_write+0xb8/0x740 [ 161.488476][ C0] ? vfs_write+0x275/0x590 [ 161.492877][ C0] ? ksys_write+0x117/0x220 [ 161.497469][ C0] ? __x64_sys_write+0x7b/0x90 [ 161.502221][ C0] ? do_syscall_64+0xf7/0x1c0 [ 161.506884][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 161.512952][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 161.518225][ C0] ? kmem_cache_alloc+0x194/0x2e0 [ 161.523238][ C0] kasan_slab_alloc+0xf/0x20 [ 161.527814][ C0] kmem_cache_alloc+0x1f5/0x2e0 [ 161.532648][ C0] ? __kernfs_new_node+0x97/0x680 [ 161.537659][ C0] __kernfs_new_node+0x97/0x680 [ 161.542502][ C0] ? mutex_unlock+0x1b/0x30 [ 161.546989][ C0] ? kernfs_activate+0x4c7/0x4e0 [ 161.551918][ C0] kernfs_new_node+0x97/0x170 [ 161.556588][ C0] __kernfs_create_file+0x4a/0x2f0 [ 161.561687][ C0] sysfs_add_file_mode_ns+0x2dc/0x3a0 [ 161.567053][ C0] internal_create_group+0x4be/0xd80 [ 161.572321][ C0] ? __kasan_check_write+0x14/0x20 [ 161.577430][ C0] sysfs_create_groups+0x75/0x130 [ 161.582440][ C0] device_add+0xaad/0x1ad0 [ 161.586842][ C0] ? kfree_const+0x39/0x40 [ 161.591257][ C0] netdev_register_kobject+0x152/0x2f0 [ 161.596711][ C0] register_netdevice+0xfc9/0x1830 [ 161.601822][ C0] nsim_create+0x1d4/0x230 [ 161.606225][ C0] __nsim_dev_port_add+0x289/0x4d0 [ 161.611319][ C0] ? debugfs_create_file_unsafe+0x4a/0x60 [ 161.617028][ C0] ? nsim_bpf_dev_init+0x1eb/0x220 [ 161.622125][ C0] nsim_dev_probe+0xb55/0xef0 [ 161.626815][ C0] nsim_bus_probe+0x15/0x20 [ 161.631306][ C0] really_probe+0x71c/0xf40 [ 161.635801][ C0] driver_probe_device+0xfc/0x260 [ 161.640811][ C0] ? parse_option_str+0x1bf/0x200 [ 161.645833][ C0] __device_attach_driver+0x336/0x3f0 [ 161.651195][ C0] ? coredump_store+0x90/0x90 [ 161.655855][ C0] bus_for_each_drv+0x12b/0x180 [ 161.660696][ C0] __device_attach+0x1ea/0x390 [ 161.665452][ C0] device_initial_probe+0x1a/0x20 [ 161.670461][ C0] bus_probe_device+0xb9/0x1f0 [ 161.675211][ C0] device_add+0x1710/0x1ad0 [ 161.679716][ C0] device_register+0x1d/0x20 [ 161.684294][ C0] new_device_store+0x286/0x510 [ 161.689137][ C0] ? nsim_num_vf+0x50/0x50 [ 161.693545][ C0] bus_attr_store+0x78/0x90 [ 161.698033][ C0] ? bus_attr_show+0x90/0x90 [ 161.702615][ C0] sysfs_kf_write+0x281/0x2f0 [ 161.707288][ C0] ? sysfs_kf_read+0x370/0x370 [ 161.712042][ C0] kernfs_fop_write+0x3e4/0x4e0 [ 161.716884][ C0] ? kernfs_fop_read+0x580/0x580 [ 161.721811][ C0] __vfs_write+0xb8/0x740 [ 161.726143][ C0] ? rcu_read_lock_any_held+0x13d/0x1a0 [ 161.731677][ C0] ? __sb_start_write+0x382/0x430 [ 161.736699][ C0] vfs_write+0x275/0x590 [ 161.740936][ C0] ksys_write+0x117/0x220 [ 161.745261][ C0] __x64_sys_write+0x7b/0x90 [ 161.749841][ C0] do_syscall_64+0xf7/0x1c0 [ 161.754334][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 161.760213][ C0] RIP: 0033:0x414130 [ 161.764094][ C0] Code: b0 89 c8 f7 d8 eb ed b8 6e 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83 3d 3d 43 66 00 00 75 14 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 c4 1b 00 00 c3 48 83 ec 08 e8 ca fc ff ff [ 161.783686][ C0] RSP: 002b:00007ffec65ee7b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 161.792088][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000414130 [ 161.800049][ C0] RDX: 0000000000000003 RSI: 00007ffec65ee7e0 RDI: 0000000000000004 [ 161.808010][ C0] RBP: 00007ffec65ee7e0 R08: 0000000000000000 R09: 0000000000000003 [ 161.815971][ C0] R10: 0000000000000075 R11: 0000000000000246 R12: 00000000004bfc97 [ 161.823927][ C0] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 161.831906][ C0] rcu: rcu_preempt kthread starved for 10579 jiffies! g5993 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 161.842984][ C0] rcu: RCU grace-period kthread stack dump: [ 161.848859][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 161.856744][ C0] Call Trace: [ 161.860029][ C0] __schedule+0x9a0/0xcc0 [ 161.864358][ C0] schedule+0x181/0x210 [ 161.868500][ C0] schedule_timeout+0x14f/0x240 [ 161.873338][ C0] ? run_local_timers+0x120/0x120 [ 161.878359][ C0] rcu_gp_kthread+0xed8/0x1770 [ 161.883119][ C0] kthread+0x332/0x350 [ 161.887175][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 161.892274][ C0] ? kthread_blkcg+0xe0/0xe0 [ 161.896851][ C0] ret_from_fork+0x24/0x30