[ 44.819630][ T25] audit: type=1800 audit(1575429081.019:25): pid=8078 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.864309][ T25] audit: type=1800 audit(1575429081.019:26): pid=8078 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.906648][ T25] audit: type=1800 audit(1575429081.019:27): pid=8078 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 44.943162][ T25] audit: type=1800 audit(1575429081.019:28): pid=8078 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 '10.128.0.21' (ECDSA) to the list of known hosts. 2019/12/04 03:11:33 fuzzer started 2019/12/04 03:11:35 dialing manager at 10.128.0.26:42111 2019/12/04 03:11:35 syscalls: 2689 2019/12/04 03:11:35 code coverage: enabled 2019/12/04 03:11:35 comparison tracing: enabled 2019/12/04 03:11:35 extra coverage: extra coverage is not supported by the kernel 2019/12/04 03:11:35 setuid sandbox: enabled 2019/12/04 03:11:35 namespace sandbox: enabled 2019/12/04 03:11:35 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 03:11:35 fault injection: enabled 2019/12/04 03:11:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 03:11:35 net packet injection: enabled 2019/12/04 03:11:35 net device setup: enabled 2019/12/04 03:11:35 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 03:11:35 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:11:36 executing program 0: r0 = openat$random(0xffffffffffffff9c, &(0x7f0000000000)='/dev/urandom\x00', 0x0, 0x0) ioctl$RNDADDTOENTCNT(r0, 0x40045201, &(0x7f0000000040)=0x10000) 03:11:36 executing program 1: syz_init_net_socket$nfc_raw(0x27, 0x3, 0x0) syzkaller login: [ 60.312914][ T8245] IPVS: ftp: loaded support on port[0] = 21 03:11:36 executing program 2: openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/\x00\x00\x00\x0e\x00\x00\x00\x00\x00\x00\a/expire_nodest_conn\x00', 0x2, 0x0) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x4) r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ptmx\x00', 0x0, 0x0) mmap(&(0x7f0000000000/0xfe3000)=nil, 0xfe3000, 0x3, 0x32, 0xffffffffffffffff, 0x0) getdents(r0, &(0x7f00000002c0)=""/158, 0x9e) [ 60.473482][ T8248] IPVS: ftp: loaded support on port[0] = 21 [ 60.484624][ T8245] chnl_net:caif_netlink_parms(): no params data found [ 60.621752][ T8245] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.629663][ T8245] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.639797][ T8245] device bridge_slave_0 entered promiscuous mode [ 60.647810][ T8245] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.656338][ T8245] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.664308][ T8245] device bridge_slave_1 entered promiscuous mode [ 60.679588][ T8250] IPVS: ftp: loaded support on port[0] = 21 03:11:36 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x47, 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) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000080)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x989680}, {0x0, 0x9}}, 0x0) timer_create(0x0, &(0x7f0000000000)={0x0, 0x14, 0x0, @thr={0x0, 0x0}}, &(0x7f0000000040)=0x0) timer_settime(r0, 0x0, &(0x7f0000000180)={{0x0, 0x1c9c380}, {0x0, 0x1c9c380}}, 0x0) futex(&(0x7f000000cffc)=0x4, 0x0, 0x4, 0x0, 0x0, 0x0) [ 60.723577][ T8245] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.756777][ T8245] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.779072][ T8248] chnl_net:caif_netlink_parms(): no params data found [ 60.808179][ T8245] team0: Port device team_slave_0 added [ 60.833300][ T8245] team0: Port device team_slave_1 added [ 60.946713][ T8245] device hsr_slave_0 entered promiscuous mode 03:11:37 executing program 4: unshare(0x8000400) r0 = openat$vnet(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vhost-net\x00', 0x2, 0x0) poll(&(0x7f00000007c0)=[{r0}], 0x1, 0x0) [ 61.024583][ T8245] device hsr_slave_1 entered promiscuous mode [ 61.089345][ T8248] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.106314][ T8248] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.126105][ T8248] device bridge_slave_0 entered promiscuous mode [ 61.153115][ T8254] IPVS: ftp: loaded support on port[0] = 21 [ 61.178324][ T8248] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.189229][ T8248] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.197423][ T8248] device bridge_slave_1 entered promiscuous mode [ 61.212755][ T8257] IPVS: ftp: loaded support on port[0] = 21 03:11:37 executing program 5: syz_mount_image$hfsplus(&(0x7f00000000c0)='hfsplus\x00', &(0x7f0000000100)='./bus\x00', 0x0, 0x0, 0x0, 0x0, &(0x7f0000000680)=ANY=[@ANYBLOB='gid=', @ANYRESHEX=0x0]) [ 61.262128][ T8250] chnl_net:caif_netlink_parms(): no params data found [ 61.329907][ T8248] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.341684][ T8245] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.418734][ T8245] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.487521][ T8245] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.547401][ T8245] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.597856][ T8248] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.663635][ T8259] IPVS: ftp: loaded support on port[0] = 21 [ 61.698538][ T8248] team0: Port device team_slave_0 added [ 61.711283][ T8250] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.719431][ T8250] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.727094][ T8250] device bridge_slave_0 entered promiscuous mode [ 61.736055][ T8250] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.743111][ T8250] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.751593][ T8250] device bridge_slave_1 entered promiscuous mode [ 61.767266][ T8254] chnl_net:caif_netlink_parms(): no params data found [ 61.777056][ T8248] team0: Port device team_slave_1 added [ 61.799420][ T8250] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.877423][ T8248] device hsr_slave_0 entered promiscuous mode [ 61.914804][ T8248] device hsr_slave_1 entered promiscuous mode [ 61.954432][ T8248] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.969350][ T8250] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.991412][ T8254] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.998699][ T8254] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.007355][ T8254] device bridge_slave_0 entered promiscuous mode [ 62.017651][ T8254] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.026311][ T8254] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.033991][ T8254] device bridge_slave_1 entered promiscuous mode [ 62.058384][ T8245] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.078713][ T8250] team0: Port device team_slave_0 added [ 62.101878][ T8254] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.113716][ T8254] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.130267][ T8250] team0: Port device team_slave_1 added [ 62.156877][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.165819][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.180262][ T8245] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.191645][ T8254] team0: Port device team_slave_0 added [ 62.246747][ T8250] device hsr_slave_0 entered promiscuous mode [ 62.294596][ T8250] device hsr_slave_1 entered promiscuous mode [ 62.364392][ T8250] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.388521][ T8254] team0: Port device team_slave_1 added [ 62.394943][ T8248] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.447978][ T8248] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.507862][ T8248] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.568549][ T8248] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.638916][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.647628][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.656543][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.663728][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.715501][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.723450][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.732185][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.741052][ T8251] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.748141][ T8251] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.756693][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.765624][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.774447][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.782860][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.791327][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.800713][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.809121][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.817325][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.827682][ T8257] chnl_net:caif_netlink_parms(): no params data found [ 62.858755][ T8251] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.867499][ T8259] chnl_net:caif_netlink_parms(): no params data found [ 62.916375][ T8254] device hsr_slave_0 entered promiscuous mode [ 62.966027][ T8254] device hsr_slave_1 entered promiscuous mode [ 63.025451][ T8254] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.049708][ T8250] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.077202][ T8250] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.136488][ T8257] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.143589][ T8257] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.151410][ T8257] device bridge_slave_0 entered promiscuous mode [ 63.160427][ T8257] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.168772][ T8257] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.176549][ T8257] device bridge_slave_1 entered promiscuous mode [ 63.189835][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.199487][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.210277][ T8245] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.221625][ T8250] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.286439][ T8250] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.348761][ T8259] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.356836][ T8259] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.366580][ T8259] device bridge_slave_0 entered promiscuous mode [ 63.375079][ T8259] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.382132][ T8259] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.390005][ T8259] device bridge_slave_1 entered promiscuous mode [ 63.400805][ T8257] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.411786][ T8257] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.445075][ T8259] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.457585][ T8259] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.476334][ T8257] team0: Port device team_slave_0 added [ 63.483244][ T8257] team0: Port device team_slave_1 added [ 63.509816][ T8259] team0: Port device team_slave_0 added [ 63.517853][ T8259] team0: Port device team_slave_1 added [ 63.524022][ T8254] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 63.547605][ T8254] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 63.596494][ T8254] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 63.649408][ T8254] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 63.711014][ T8245] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.727407][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.734890][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.786956][ T8259] device hsr_slave_0 entered promiscuous mode [ 63.814907][ T8259] device hsr_slave_1 entered promiscuous mode [ 63.864407][ T8259] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.958777][ T8257] device hsr_slave_0 entered promiscuous mode [ 64.014704][ T8257] device hsr_slave_1 entered promiscuous mode [ 64.074523][ T8257] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.091445][ T8250] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.115914][ T8248] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.163054][ T8254] 8021q: adding VLAN 0 to HW filter on device bond0 [ 169.174220][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 169.181245][ C0] (detected by 0, t=10502 jiffies, g=6353, q=125) [ 169.187751][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954059-4294943556), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 169.201115][ C0] syz-executor.4 R running task 25056 8257 8255 0x0000400a [ 169.209017][ C0] Call Trace: [ 169.212305][ C0] [ 169.215159][ C0] sched_show_task+0x40f/0x560 [ 169.220029][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 169.225321][ C0] update_process_times+0x12d/0x180 [ 169.230516][ C0] tick_sched_timer+0x263/0x420 [ 169.235487][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 169.241065][ C0] __hrtimer_run_queues+0x403/0x840 [ 169.246290][ C0] hrtimer_interrupt+0x38c/0xda0 [ 169.251257][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.256566][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 169.262237][ C0] apic_timer_interrupt+0xf/0x20 [ 169.267179][ C0] [ 169.270124][ C0] RIP: 0010:__memcg_kmem_uncharge+0x213/0x2e0 [ 169.276196][ C0] Code: a4 ff 48 c7 c7 98 4b 0d 89 e8 59 97 00 00 bf 01 00 00 00 e8 2f e3 9b ff 65 8b 05 d4 fd 4a 7e 85 c0 74 53 48 83 c4 08 5b 41 5c <41> 5d 41 5e 41 5f 5d c3 49 8d 5f 10 48 89 df be 08 00 00 00 e8 04 [ 169.295820][ C0] RSP: 0018:ffffc90002566ec0 EFLAGS: 00000292 ORIG_RAX: ffffffffffffff13 [ 169.304240][ C0] RAX: 0000000000000001 RBX: ffffea00029421c0 RCX: 0000000000000000 [ 169.312230][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00029421c0 [ 169.320200][ C0] RBP: ffffc90002566ed8 R08: dffffc0000000000 R09: fffffbfff120248a [ 169.328187][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c778920 [ 169.336158][ C0] R13: 1ffffd400052843f R14: ffffea00029421f8 R15: 0000000000000000 [ 169.344271][ C0] free_thread_stack+0x12e/0x590 [ 169.349208][ C0] put_task_stack+0xa3/0x130 [ 169.353808][ C0] finish_task_switch+0x3f1/0x550 [ 169.358856][ C0] __schedule+0x9a8/0xcc0 [ 169.363318][ C0] ? stack_trace_save+0x150/0x150 [ 169.368348][ C0] ? ___preempt_schedule_notrace+0x16/0x27 [ 169.374179][ C0] preempt_schedule_notrace+0xdb/0x120 [ 169.379640][ C0] ___preempt_schedule_notrace+0x16/0x27 [ 169.385284][ C0] ? rcu_is_watching+0x57/0xa0 [ 169.390046][ C0] rcu_is_watching+0x82/0xa0 [ 169.394738][ C0] __kernel_text_address+0x74/0x110 [ 169.399935][ C0] unwind_get_return_address+0x4c/0x90 [ 169.405392][ C0] arch_stack_walk+0x98/0xe0 [ 169.409989][ C0] stack_trace_save+0xb6/0x150 [ 169.414795][ C0] __kasan_kmalloc+0x11c/0x1b0 [ 169.419561][ C0] ? __kasan_kmalloc+0x11c/0x1b0 [ 169.424522][ C0] ? kasan_slab_alloc+0xf/0x20 [ 169.429310][ C0] ? kmem_cache_alloc_trace+0x1fa/0x2f0 [ 169.434853][ C0] ? inetdev_init+0x80/0x3f0 [ 169.439432][ C0] ? inetdev_event+0x22f/0x1350 [ 169.444271][ C0] ? raw_notifier_call_chain+0xec/0x190 [ 169.449830][ C0] ? register_netdevice+0x1339/0x1830 [ 169.455213][ C0] ? nsim_create+0x1d4/0x230 [ 169.459912][ C0] ? __nsim_dev_port_add+0x289/0x4d0 [ 169.465196][ C0] ? nsim_dev_probe+0xb55/0xef0 [ 169.470039][ C0] ? nsim_bus_probe+0x15/0x20 [ 169.474708][ C0] ? really_probe+0x71c/0xf40 [ 169.479372][ C0] ? driver_probe_device+0xfc/0x260 [ 169.484562][ C0] ? __device_attach_driver+0x336/0x3f0 [ 169.490094][ C0] ? bus_for_each_drv+0x12b/0x180 [ 169.495104][ C0] ? __device_attach+0x1ea/0x390 [ 169.500027][ C0] ? device_initial_probe+0x1a/0x20 [ 169.505206][ C0] ? bus_probe_device+0xb9/0x1f0 [ 169.510126][ C0] ? device_add+0x1710/0x1ad0 [ 169.514789][ C0] ? device_register+0x1d/0x20 [ 169.519536][ C0] ? new_device_store+0x286/0x510 [ 169.524545][ C0] ? bus_attr_store+0x78/0x90 [ 169.529209][ C0] ? sysfs_kf_write+0x281/0x2f0 [ 169.534045][ C0] ? kernfs_fop_write+0x3e4/0x4e0 [ 169.539053][ C0] ? __vfs_write+0xb8/0x740 [ 169.543541][ C0] ? vfs_write+0x275/0x590 [ 169.548034][ C0] ? ksys_write+0x117/0x220 [ 169.552521][ C0] ? __x64_sys_write+0x7b/0x90 [ 169.557271][ C0] ? do_syscall_64+0xf7/0x1c0 [ 169.561933][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.567997][ C0] ? ___preempt_schedule_notrace+0x16/0x27 [ 169.573806][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 169.579076][ C0] ? kmem_cache_alloc_trace+0x199/0x2f0 [ 169.584634][ C0] kasan_slab_alloc+0xf/0x20 [ 169.589218][ C0] kmem_cache_alloc_trace+0x1fa/0x2f0 [ 169.594580][ C0] ? inetdev_init+0x80/0x3f0 [ 169.599157][ C0] inetdev_init+0x80/0x3f0 [ 169.603558][ C0] inetdev_event+0x22f/0x1350 [ 169.608221][ C0] ? netdev_upper_walk+0x1a0/0x1a0 [ 169.613314][ C0] ? add_default_gids+0xe0/0xe0 [ 169.618153][ C0] ? enum_all_gids_of_dev_cb+0x2d0/0x2d0 [ 169.623768][ C0] ? del_netdev_ips+0x30/0x30 [ 169.628436][ C0] raw_notifier_call_chain+0xec/0x190 [ 169.633798][ C0] register_netdevice+0x1339/0x1830 [ 169.638995][ C0] nsim_create+0x1d4/0x230 [ 169.643401][ C0] __nsim_dev_port_add+0x289/0x4d0 [ 169.648500][ C0] ? debugfs_create_file_unsafe+0x4a/0x60 [ 169.654229][ C0] ? nsim_bpf_dev_init+0x1eb/0x220 [ 169.659363][ C0] nsim_dev_probe+0xb55/0xef0 [ 169.664052][ C0] nsim_bus_probe+0x15/0x20 [ 169.668571][ C0] really_probe+0x71c/0xf40 [ 169.673097][ C0] driver_probe_device+0xfc/0x260 [ 169.678128][ C0] ? parse_option_str+0x1bf/0x200 [ 169.683154][ C0] __device_attach_driver+0x336/0x3f0 [ 169.688519][ C0] ? coredump_store+0x90/0x90 [ 169.693185][ C0] bus_for_each_drv+0x12b/0x180 [ 169.698033][ C0] __device_attach+0x1ea/0x390 [ 169.702792][ C0] device_initial_probe+0x1a/0x20 [ 169.707847][ C0] bus_probe_device+0xb9/0x1f0 [ 169.712601][ C0] device_add+0x1710/0x1ad0 [ 169.717110][ C0] device_register+0x1d/0x20 [ 169.721687][ C0] new_device_store+0x286/0x510 [ 169.726525][ C0] ? nsim_num_vf+0x50/0x50 [ 169.730930][ C0] bus_attr_store+0x78/0x90 [ 169.735418][ C0] ? bus_attr_show+0x90/0x90 [ 169.739996][ C0] sysfs_kf_write+0x281/0x2f0 [ 169.744667][ C0] ? sysfs_kf_read+0x370/0x370 [ 169.749416][ C0] kernfs_fop_write+0x3e4/0x4e0 [ 169.754252][ C0] ? kernfs_fop_read+0x580/0x580 [ 169.759176][ C0] __vfs_write+0xb8/0x740 [ 169.763498][ C0] ? rcu_read_lock_any_held+0x13d/0x1a0 [ 169.769027][ C0] ? __sb_start_write+0x382/0x430 [ 169.774038][ C0] vfs_write+0x275/0x590 [ 169.778274][ C0] ksys_write+0x117/0x220 [ 169.782594][ C0] __x64_sys_write+0x7b/0x90 [ 169.787171][ C0] do_syscall_64+0xf7/0x1c0 [ 169.791783][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.797674][ C0] RIP: 0033:0x414130 [ 169.801561][ 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 [ 169.821239][ C0] RSP: 002b:00007ffed1e39348 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 169.829635][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000414130 [ 169.837594][ C0] RDX: 0000000000000003 RSI: 00007ffed1e39370 RDI: 0000000000000004 [ 169.845567][ C0] RBP: 00007ffed1e39370 R08: 0000000000000000 R09: 0000000000000003 [ 169.853611][ C0] R10: 0000000000000075 R11: 0000000000000246 R12: 00000000004bfc97 [ 169.861567][ C0] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 169.869561][ C0] rcu: rcu_preempt kthread starved for 10571 jiffies! g6353 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 169.880646][ C0] rcu: RCU grace-period kthread stack dump: [ 169.886526][ C0] rcu_preempt R running task 28992 10 2 0x80004000 [ 169.894413][ C0] Call Trace: [ 169.897694][ C0] __schedule+0x9a0/0xcc0 [ 169.902020][ C0] schedule+0x181/0x210 [ 169.906166][ C0] schedule_timeout+0x14f/0x240 [ 169.911005][ C0] ? run_local_timers+0x120/0x120 [ 169.916020][ C0] rcu_gp_kthread+0xed8/0x1770 [ 169.920782][ C0] kthread+0x332/0x350 [ 169.924839][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 169.929937][ C0] ? kthread_blkcg+0xe0/0xe0 [ 169.934522][ C0] ret_from_fork+0x24/0x30