Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. 2019/12/02 20:56:10 fuzzer started 2019/12/02 20:56:12 dialing manager at 10.128.0.26:38907 2019/12/02 20:56:12 syscalls: 2697 2019/12/02 20:56:12 code coverage: enabled 2019/12/02 20:56:12 comparison tracing: enabled 2019/12/02 20:56:12 extra coverage: extra coverage is not supported by the kernel 2019/12/02 20:56:12 setuid sandbox: enabled 2019/12/02 20:56:12 namespace sandbox: enabled 2019/12/02 20:56:12 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/02 20:56:12 fault injection: enabled 2019/12/02 20:56:12 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/02 20:56:12 net packet injection: enabled 2019/12/02 20:56:12 net device setup: enabled 2019/12/02 20:56:12 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/02 20:56:12 devlink PCI setup: PCI device 0000:00:10.0 is not available 20:56:13 executing program 0: r0 = socket(0x1e, 0x4, 0x0) connect$tipc(r0, &(0x7f0000000000)=@name={0x1e, 0x3}, 0x10) 20:56:13 executing program 1: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x1ff}, 0x0) sched_setattr(0x0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x3}, 0x0) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000240)='status\x00') ioctl$KVM_GET_ONE_REG(0xffffffffffffffff, 0x4010aeab, &(0x7f0000000300)={0x1}) syz_mount_image$vfat(&(0x7f0000000540)='vfat\x00', &(0x7f00000002c0)='./file0\x00', 0x800000000e004, 0x1, &(0x7f0000000380)=[{&(0x7f0000000100)="eb3c906d6b66732e666174000204010002000270fff8", 0x16}], 0x0, 0x0) ioctl$KVM_PPC_GET_SMMU_INFO(0xffffffffffffffff, 0x8250aea6, &(0x7f0000000140)=""/104) r0 = open(&(0x7f0000000200)='./file0\x00', 0x0, 0x0) r1 = getgid() lstat(0x0, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) keyctl$chown(0x4, 0x0, 0x0, r2) setregid(r1, r2) fchdir(r0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_config_ext, 0x4000, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = open(&(0x7f00000001c0)='./bus\x00', 0x141042, 0x0) write$P9_RREADLINK(r3, &(0x7f0000000080)=ANY=[@ANYBLOB="a7724bdef64346bc14b8b0f781d1d3abf9d1a51c4bfce1e77551a8bd678625df08300200000040847bc2fdffe8cd918b035041291559f3ee3a46069062af9680d512f4d8a5c53f63c07a570820ded7e55e1f7b4d162c71a96921543e1133a246debf5db96fe086a7c66efe318a93"], 0x46) socket$inet_icmp_raw(0x2, 0x3, 0x1) fcntl$setsig(0xffffffffffffffff, 0xa, 0x0) r4 = socket$inet6(0xa, 0x3, 0x6) r5 = syz_open_procfs(0x0, 0x0) sendfile(r4, r5, &(0x7f0000000240)=0x202, 0x4000000000dc) sendfile(r3, r3, &(0x7f0000000000), 0x8080fffffffe) syzkaller login: [ 54.074164][ T8062] IPVS: ftp: loaded support on port[0] = 21 20:56:13 executing program 2: bpf$PROG_LOAD(0x5, &(0x7f0000000100)={0xe, 0x4, &(0x7f0000000000)=@framed={{}, [@call={0x63, 0x11, 0x2c}]}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f0000000200)=""/4096, 0x0, 0x4, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 54.226440][ T8062] chnl_net:caif_netlink_parms(): no params data found [ 54.236442][ T8065] IPVS: ftp: loaded support on port[0] = 21 [ 54.311270][ T8062] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.322731][ T8062] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.337798][ T8062] device bridge_slave_0 entered promiscuous mode [ 54.364339][ T8062] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.371418][ T8062] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.384112][ T8062] device bridge_slave_1 entered promiscuous mode [ 54.411018][ T8067] IPVS: ftp: loaded support on port[0] = 21 [ 54.429354][ T8062] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.481738][ T8062] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 20:56:13 executing program 3: r0 = socket$inet6_sctp(0xa, 0x80000000000001, 0x84) setsockopt$inet_sctp6_SCTP_ENABLE_STREAM_RESET(r0, 0x84, 0x76, &(0x7f0000444ff8)={0x0, 0x7}, 0x8) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000cf6fe4)=[@in6={0xa, 0x4e23, 0x0, @loopback}], 0x1c) setsockopt$inet_sctp6_SCTP_INITMSG(r0, 0x84, 0x2, &(0x7f0000000080)={0x403}, 0x8) setsockopt$inet_sctp6_SCTP_RECONFIG_SUPPORTED(r0, 0x84, 0x75, &(0x7f0000107ff8)={0x0, 0x10040000}, 0x8) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = fcntl$dupfd(r1, 0x0, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) connect$inet6(r0, &(0x7f00008c0000)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) setsockopt$inet_sctp6_SCTP_RESET_STREAMS(r0, 0x84, 0x77, &(0x7f0000000340)=ANY=[@ANYRES32=0x0, @ANYBLOB="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"], 0xa) [ 54.534184][ T8062] team0: Port device team_slave_0 added [ 54.543031][ T8062] team0: Port device team_slave_1 added [ 54.565754][ T8065] chnl_net:caif_netlink_parms(): no params data found [ 54.659076][ T8062] device hsr_slave_0 entered promiscuous mode [ 54.703662][ T8062] device hsr_slave_1 entered promiscuous mode [ 54.768934][ T8065] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.776969][ T8065] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.787280][ T8065] device bridge_slave_0 entered promiscuous mode [ 54.805065][ T8070] IPVS: ftp: loaded support on port[0] = 21 20:56:14 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_open_dev$mice(&(0x7f0000000040)='/dev/input/mice\x00', 0x0, 0x0) setsockopt$inet_mreqsrc(0xffffffffffffffff, 0x0, 0x0, &(0x7f0000000000)={@multicast2, @local}, 0xc) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000740)={0x3, 0x2, 0xf000, 0x1000, &(0x7f0000000000/0x1000)=nil}) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000200)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfb]}) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000380)) getsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000080)={0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x49605d4f}, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 54.832886][ T8065] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.846412][ T8065] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.856000][ T8065] device bridge_slave_1 entered promiscuous mode [ 54.950707][ T8062] netdevsim netdevsim0 netdevsim0: renamed from eth0 20:56:14 executing program 5: r0 = socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000080)='IPVS\x00') sendmsg$IPVS_CMD_NEW_DAEMON(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f00000001c0)={&(0x7f0000000240)={0x50, r1, 0x1, 0x0, 0x0, {}, [@IPVS_CMD_ATTR_DAEMON={0x3c, 0x3, [@IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @mcast2}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'vcan0\x00'}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x2}]}]}, 0x50}}, 0x0) [ 55.007958][ T8062] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.067021][ T8067] chnl_net:caif_netlink_parms(): no params data found [ 55.081308][ T8065] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.104533][ T8062] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.116365][ T8073] IPVS: ftp: loaded support on port[0] = 21 [ 55.137593][ T8062] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.208572][ T8065] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.236039][ T8065] team0: Port device team_slave_0 added [ 55.245742][ T8065] team0: Port device team_slave_1 added [ 55.276695][ T8075] IPVS: ftp: loaded support on port[0] = 21 [ 55.301065][ T8067] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.308265][ T8067] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.316782][ T8067] device bridge_slave_0 entered promiscuous mode [ 55.405992][ T8065] device hsr_slave_0 entered promiscuous mode [ 55.473846][ T8065] device hsr_slave_1 entered promiscuous mode [ 55.524335][ T8065] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.544921][ T8067] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.551987][ T8067] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.561086][ T8067] device bridge_slave_1 entered promiscuous mode [ 55.603889][ T8067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.618700][ T8067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.636334][ T8065] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 55.677476][ T8065] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.736486][ T8065] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.797124][ T8065] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.864823][ T8070] chnl_net:caif_netlink_parms(): no params data found [ 55.886937][ T8067] team0: Port device team_slave_0 added [ 55.918876][ T8067] team0: Port device team_slave_1 added [ 55.964860][ T8062] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.995490][ T8070] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.002545][ T8070] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.010341][ T8070] device bridge_slave_0 entered promiscuous mode [ 56.019322][ T8070] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.027125][ T8070] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.034837][ T8070] device bridge_slave_1 entered promiscuous mode [ 56.106176][ T8067] device hsr_slave_0 entered promiscuous mode [ 56.143834][ T8067] device hsr_slave_1 entered promiscuous mode [ 56.183506][ T8067] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.221167][ T8070] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.233892][ T8070] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.247784][ T8062] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.268240][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.276390][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.284664][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.293065][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.301499][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.308648][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.328429][ T8073] chnl_net:caif_netlink_parms(): no params data found [ 56.346820][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.368807][ T8070] team0: Port device team_slave_0 added [ 56.374997][ T8075] chnl_net:caif_netlink_parms(): no params data found [ 56.386740][ T8070] team0: Port device team_slave_1 added [ 56.407418][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.416180][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.424564][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.431585][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.439136][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.454792][ T3905] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.463189][ T3905] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.472158][ T3905] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.496769][ T8073] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.504948][ T8073] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.512714][ T8073] device bridge_slave_0 entered promiscuous mode [ 56.528357][ T3902] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.537387][ T3902] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.545902][ T3902] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.555116][ T3902] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.563666][ T3902] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.586156][ T8073] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.593302][ T8073] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.601182][ T8073] device bridge_slave_1 entered promiscuous mode [ 56.613081][ T8067] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 56.735077][ T8070] device hsr_slave_0 entered promiscuous mode [ 56.784381][ T8070] device hsr_slave_1 entered promiscuous mode [ 56.843590][ T8070] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.866641][ T8073] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.876562][ T8067] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 56.919294][ T8067] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 56.977526][ T8075] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.985628][ T8075] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.993151][ T8075] device bridge_slave_0 entered promiscuous mode [ 57.002133][ T8073] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.018747][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.027207][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.037885][ T8067] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 57.097358][ T8075] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.104697][ T8075] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.112356][ T8075] device bridge_slave_1 entered promiscuous mode [ 57.147752][ T8062] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.160721][ T8075] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.175007][ T8073] team0: Port device team_slave_0 added [ 57.186156][ T8070] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 57.247879][ T8070] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 57.304693][ T8062] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.312639][ T8075] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.324235][ T8073] team0: Port device team_slave_1 added [ 57.340386][ T8075] team0: Port device team_slave_0 added [ 57.353856][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.361232][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.372860][ T8070] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 57.435259][ T8070] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 57.482093][ T8075] team0: Port device team_slave_1 added [ 57.535431][ T8073] device hsr_slave_0 entered promiscuous mode [ 57.573766][ T8073] device hsr_slave_1 entered promiscuous mode [ 57.614273][ T8073] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.628536][ T8065] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.716210][ T8075] device hsr_slave_0 entered promiscuous mode [ 57.754126][ T8075] device hsr_slave_1 entered promiscuous mode [ 57.793939][ T8075] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.819438][ T8065] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.858173][ T8067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 162.893390][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 162.900404][ C0] (detected by 0, t=10502 jiffies, g=5749, q=165) [ 162.906898][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953447-4294942944), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 162.920237][ C0] syz-executor.5 R running task 24984 8075 8074 0x0000400a [ 162.928124][ C0] Call Trace: [ 162.931394][ C0] [ 162.934238][ C0] sched_show_task+0x40f/0x560 [ 162.938997][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 162.944275][ C0] update_process_times+0x12d/0x180 [ 162.949462][ C0] tick_sched_timer+0x263/0x420 [ 162.954297][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 162.959827][ C0] __hrtimer_run_queues+0x403/0x840 [ 162.965029][ C0] hrtimer_interrupt+0x38c/0xda0 [ 162.969966][ C0] ? debug_smp_processor_id+0x9/0x20 [ 162.975240][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 162.980773][ C0] apic_timer_interrupt+0xf/0x20 [ 162.985690][ C0] [ 162.988615][ C0] RIP: 0010:mod_memcg_page_state+0x16/0x190 [ 162.994490][ C0] Code: 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 da 28 2e 00 <48> 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 [ 163.014166][ C0] RSP: 0018:ffffc900025b74b0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 163.022561][ C0] RAX: ffffffff81487326 RBX: ffffea0001b0a480 RCX: ffff888096f4c180 [ 163.030520][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001b0a480 [ 163.038480][ C0] RBP: ffffc900025b74d0 R08: 000000000003a768 R09: fffffbfff120248a [ 163.046439][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a37074a0 [ 163.054395][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a8491668 [ 163.062374][ C0] ? mod_memcg_page_state+0x16/0x190 [ 163.067651][ C0] free_thread_stack+0x168/0x590 [ 163.072577][ C0] put_task_stack+0xa3/0x130 [ 163.077155][ C0] finish_task_switch+0x3f1/0x550 [ 163.082257][ C0] __schedule+0x9a8/0xcc0 [ 163.086585][ C0] ? ___preempt_schedule+0x16/0x18 [ 163.091698][ C0] preempt_schedule+0xdb/0x120 [ 163.096459][ C0] ___preempt_schedule+0x16/0x18 [ 163.101403][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 163.106065][ C0] ? vprintk_emit+0x368/0x3a0 [ 163.110735][ C0] vprintk_emit+0x36d/0x3a0 [ 163.115231][ C0] vprintk_default+0x28/0x30 [ 163.119805][ C0] vprintk_func+0x158/0x170 [ 163.124302][ C0] printk+0x62/0x8d [ 163.128101][ C0] ? kobject_uevent_env+0x5c/0x1210 [ 163.133376][ C0] kobject_uevent_env+0xc4/0x1210 [ 163.138385][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 163.143654][ C0] ? queue_work_on+0x14b/0x1b0 [ 163.148414][ C0] ? __blocking_notifier_call_chain+0x220/0x260 [ 163.154650][ C0] kobject_uevent+0x1f/0x30 [ 163.159140][ C0] driver_bound+0x3fc/0x450 [ 163.163634][ C0] really_probe+0x85b/0xf40 [ 163.168252][ C0] driver_probe_device+0xfc/0x260 [ 163.173279][ C0] ? parse_option_str+0x1bf/0x200 [ 163.178321][ C0] __device_attach_driver+0x336/0x3f0 [ 163.183691][ C0] ? coredump_store+0x90/0x90 [ 163.188362][ C0] bus_for_each_drv+0x12b/0x180 [ 163.193214][ C0] __device_attach+0x1ea/0x390 [ 163.197978][ C0] device_initial_probe+0x1a/0x20 [ 163.202994][ C0] bus_probe_device+0xb9/0x1f0 [ 163.207750][ C0] device_add+0x1710/0x1ad0 [ 163.212255][ C0] device_register+0x1d/0x20 [ 163.216856][ C0] new_device_store+0x286/0x510 [ 163.221697][ C0] ? nsim_num_vf+0x50/0x50 [ 163.226105][ C0] bus_attr_store+0x78/0x90 [ 163.230597][ C0] ? bus_attr_show+0x90/0x90 [ 163.235177][ C0] sysfs_kf_write+0x281/0x2f0 [ 163.239844][ C0] ? sysfs_kf_read+0x370/0x370 [ 163.244598][ C0] kernfs_fop_write+0x3e4/0x4e0 [ 163.249442][ C0] ? kernfs_fop_read+0x580/0x580 [ 163.254369][ C0] __vfs_write+0xb8/0x740 [ 163.258699][ C0] ? rcu_read_lock_any_held+0x13d/0x1a0 [ 163.264233][ C0] ? __sb_start_write+0x382/0x430 [ 163.269246][ C0] vfs_write+0x275/0x590 [ 163.273480][ C0] ksys_write+0x117/0x220 [ 163.277802][ C0] __x64_sys_write+0x7b/0x90 [ 163.282381][ C0] do_syscall_64+0xf7/0x1c0 [ 163.286880][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 163.292763][ C0] RIP: 0033:0x414130 [ 163.296650][ 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 [ 163.316238][ C0] RSP: 002b:00007ffd88d52758 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 163.324633][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000414130 [ 163.332592][ C0] RDX: 0000000000000003 RSI: 00007ffd88d52780 RDI: 0000000000000004 [ 163.341001][ C0] RBP: 00007ffd88d52780 R08: 0000000000000000 R09: 0000000000000003 [ 163.348958][ C0] R10: 0000000000000075 R11: 0000000000000246 R12: 00000000004bfc97 [ 163.356917][ C0] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 163.364910][ C0] rcu: rcu_preempt kthread starved for 10549 jiffies! g5749 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 163.375997][ C0] rcu: RCU grace-period kthread stack dump: [ 163.381874][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 163.389769][ C0] Call Trace: [ 163.393054][ C0] __schedule+0x9a0/0xcc0 [ 163.397381][ C0] schedule+0x181/0x210 [ 163.401526][ C0] schedule_timeout+0x14f/0x240 [ 163.406368][ C0] ? run_local_timers+0x120/0x120 [ 163.411390][ C0] rcu_gp_kthread+0xed8/0x1770 [ 163.416152][ C0] kthread+0x332/0x350 [ 163.420206][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 163.425306][ C0] ? kthread_blkcg+0xe0/0xe0 [ 163.429890][ C0] ret_from_fork+0x24/0x30