[ 42.114848][ T25] audit: type=1800 audit(1575354673.127:27): pid=7975 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.156190][ T25] audit: type=1800 audit(1575354673.127:28): pid=7975 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. [ 42.878758][ T25] audit: type=1800 audit(1575354673.917:29): pid=7975 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 42.898228][ T25] audit: type=1800 audit(1575354673.917:30): pid=7975 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 '10.128.0.20' (ECDSA) to the list of known hosts. 2019/12/03 06:31:24 fuzzer started 2019/12/03 06:31:26 dialing manager at 10.128.0.26:38907 2019/12/03 06:31:26 syscalls: 2697 2019/12/03 06:31:26 code coverage: enabled 2019/12/03 06:31:26 comparison tracing: enabled 2019/12/03 06:31:26 extra coverage: extra coverage is not supported by the kernel 2019/12/03 06:31:26 setuid sandbox: enabled 2019/12/03 06:31:26 namespace sandbox: enabled 2019/12/03 06:31:26 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 06:31:26 fault injection: enabled 2019/12/03 06:31:26 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 06:31:26 net packet injection: enabled 2019/12/03 06:31:26 net device setup: enabled 2019/12/03 06:31:26 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 06:31:26 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:31:27 executing program 0: r0 = memfd_create(&(0x7f00000000c0)='vboxnet0md5sum\x00', 0x0) write(r0, &(0x7f0000000040)="06", 0x1) mmap(&(0x7f0000000000/0x7000)=nil, 0x7000, 0x80000000004, 0x11, r0, 0x0) r1 = socket$inet_dccp(0x2, 0x6, 0x0) getsockopt$inet_int(r1, 0x10d, 0xc7, 0x0, &(0x7f0000000000)) 06:31:27 executing program 1: mkdir(&(0x7f0000000000)='./file0\x00', 0x0) r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = dup3(r1, r0, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) mount$9p_tcp(&(0x7f0000000040)='127.0.0.1\x00', &(0x7f00000000c0)='./file0\x00', &(0x7f0000000280)='9p\x00', 0x0, &(0x7f0000000200)={'trans=tcp,', {'port'}}) syzkaller login: [ 56.527248][ T8141] IPVS: ftp: loaded support on port[0] = 21 06:31:27 executing program 2: r0 = socket$inet6(0xa, 0x2, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000040)='net/ip_tables_names\x00') r2 = socket$inet6(0xa, 0x2, 0x0) sendfile(r2, r1, 0x0, 0x80000000) sendfile(r0, r1, &(0x7f0000000080)=0x401, 0x8) [ 56.680123][ T8143] IPVS: ftp: loaded support on port[0] = 21 [ 56.735454][ T8141] chnl_net:caif_netlink_parms(): no params data found [ 56.829812][ T8141] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.837430][ T8141] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.837673][ T8146] IPVS: ftp: loaded support on port[0] = 21 [ 56.860731][ T8141] device bridge_slave_0 entered promiscuous mode [ 56.869285][ T8141] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.889626][ T8141] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.897233][ T8141] device bridge_slave_1 entered promiscuous mode 06:31:28 executing program 3: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = socket$inet6(0xa, 0x1, 0x0) getsockopt$inet6_buf(r1, 0x29, 0x48, &(0x7f0000c86000), &(0x7f0000000040)=0xfffffffffffffcbc) [ 56.966295][ T8141] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.033719][ T8141] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.058314][ T8143] chnl_net:caif_netlink_parms(): no params data found [ 57.130438][ T8141] team0: Port device team_slave_0 added [ 57.150448][ T8149] IPVS: ftp: loaded support on port[0] = 21 [ 57.178467][ T8141] team0: Port device team_slave_1 added [ 57.214989][ T8146] chnl_net:caif_netlink_parms(): no params data found [ 57.231712][ T8143] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.239031][ T8143] bridge0: port 1(bridge_slave_0) entered disabled state 06:31:28 executing program 4: r0 = mq_open(&(0x7f0000000000)='md5sumeth1wlan0{cgroupmime_type@\x00', 0x842, 0x0, 0x0) read(r0, &(0x7f00000000c0)=""/101, 0x65) sendfile(r0, r0, 0x0, 0x3) [ 57.260077][ T8143] device bridge_slave_0 entered promiscuous mode [ 57.270699][ T8143] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.277763][ T8143] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.286010][ T8143] device bridge_slave_1 entered promiscuous mode [ 57.376027][ T8141] device hsr_slave_0 entered promiscuous mode [ 57.430154][ T8141] device hsr_slave_1 entered promiscuous mode [ 57.479308][ T8143] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.526911][ T8152] IPVS: ftp: loaded support on port[0] = 21 [ 57.546073][ T8143] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.561606][ T8146] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.568678][ T8146] bridge0: port 1(bridge_slave_0) entered disabled state 06:31:28 executing program 5: r0 = open(&(0x7f00000009c0)='./bus\x00', 0x141042, 0x0) mmap(&(0x7f0000001000/0xa000)=nil, 0xa000, 0x800002, 0x11, r0, 0x0) r1 = creat(&(0x7f00000002c0)='./bus\x00', 0x0) ftruncate(r1, 0x8200) ioctl$FS_IOC_SETFLAGS(0xffffffffffffffff, 0x40086602, &(0x7f0000003dc0)) mincore(&(0x7f0000008000/0x4000)=nil, 0x4000, &(0x7f0000000100)=""/5) [ 57.580942][ T8146] device bridge_slave_0 entered promiscuous mode [ 57.588732][ T8146] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.598895][ T8146] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.607868][ T8146] device bridge_slave_1 entered promiscuous mode [ 57.666351][ T8143] team0: Port device team_slave_0 added [ 57.681019][ T8141] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 57.723401][ T8141] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 57.774074][ T8146] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.787778][ T8143] team0: Port device team_slave_1 added [ 57.799605][ T8141] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 57.808822][ T8154] IPVS: ftp: loaded support on port[0] = 21 [ 57.854433][ T8146] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.881847][ T8141] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 57.944269][ T8146] team0: Port device team_slave_0 added [ 57.992246][ T8143] device hsr_slave_0 entered promiscuous mode [ 58.020228][ T8143] device hsr_slave_1 entered promiscuous mode [ 58.069738][ T8143] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.095981][ T8146] team0: Port device team_slave_1 added [ 58.211153][ T8146] device hsr_slave_0 entered promiscuous mode [ 58.259944][ T8146] device hsr_slave_1 entered promiscuous mode [ 58.309608][ T8146] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.327298][ T8149] chnl_net:caif_netlink_parms(): no params data found [ 58.378075][ T8143] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 58.448724][ T8143] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 58.490798][ T8152] chnl_net:caif_netlink_parms(): no params data found [ 58.499203][ T8143] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 58.532182][ T8143] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 58.615794][ T8146] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.683970][ T8146] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.741005][ T8149] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.748163][ T8149] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.755873][ T8149] device bridge_slave_0 entered promiscuous mode [ 58.765470][ T8149] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.772609][ T8149] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.780371][ T8149] device bridge_slave_1 entered promiscuous mode [ 58.788437][ T8146] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.842970][ T8146] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.939124][ T8149] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.968844][ T8149] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.989008][ T8149] team0: Port device team_slave_0 added [ 58.997674][ T8149] team0: Port device team_slave_1 added [ 59.006004][ T8154] chnl_net:caif_netlink_parms(): no params data found [ 59.015088][ T8152] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.023133][ T8152] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.031270][ T8152] device bridge_slave_0 entered promiscuous mode [ 59.063892][ T8152] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.071810][ T8152] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.080422][ T8152] device bridge_slave_1 entered promiscuous mode [ 59.111894][ T8152] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.162319][ T8149] device hsr_slave_0 entered promiscuous mode [ 59.200246][ T8149] device hsr_slave_1 entered promiscuous mode [ 59.259685][ T8149] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.270186][ T8141] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.287483][ T8152] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.333212][ T8141] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.347488][ T8154] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.355902][ T8154] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.363932][ T8154] device bridge_slave_0 entered promiscuous mode [ 59.372910][ T8152] team0: Port device team_slave_0 added [ 59.381903][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.392701][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.400536][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.408989][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.417700][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.424976][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.433054][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.448544][ T8154] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.455785][ T8154] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.463992][ T8154] device bridge_slave_1 entered promiscuous mode [ 59.474303][ T8152] team0: Port device team_slave_1 added [ 59.494491][ T8143] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.506153][ T8149] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.561394][ T8149] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.602399][ T8149] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.642590][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.651358][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.659913][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.666957][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.687308][ T8149] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.746475][ T8154] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.765561][ T8143] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.781125][ T8154] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.796827][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.804994][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.813095][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.862317][ T8152] device hsr_slave_0 entered promiscuous mode [ 59.919890][ T8152] device hsr_slave_1 entered promiscuous mode [ 59.990247][ T8152] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.020202][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.029162][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.038443][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.047382][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.054511][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.062439][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.071221][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.079747][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.086791][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.094555][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.103390][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.113618][ T8154] team0: Port device team_slave_0 added [ 60.119415][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.140458][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.150880][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.159176][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.167849][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.176327][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.185478][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.195007][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.202893][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.211592][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.221885][ T8154] team0: Port device team_slave_1 added [ 60.249278][ T8143] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.262413][ T8143] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.272671][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.281073][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.289294][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.308962][ T8146] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.352058][ T8154] device hsr_slave_0 entered promiscuous mode [ 60.389944][ T8154] device hsr_slave_1 entered promiscuous mode [ 60.452718][ T8154] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.467977][ T8152] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 60.521913][ T8141] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.532482][ T8141] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.555917][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.565039][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.573771][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.582477][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.592193][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.599955][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.608291][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.617067][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.625363][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.633072][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.640764][ T8152] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 60.692606][ T8146] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.699385][ T8152] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 60.745820][ T8143] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.758970][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.766928][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.774597][ T3698] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.785561][ T8152] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 60.843419][ T8141] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.855210][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.865031][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.874578][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.881701][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.889628][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 60.954110][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.968777][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.982989][ T8155] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.990097][ T8155] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.000479][ T8155] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.016910][ T8163] 9pnet: p9_fd_create_tcp (8163): problem connecting socket to 127.0.0.1 [ 61.752449][ T8163] 9pnet: p9_fd_create_tcp (8163): problem connecting socket to 127.0.0.1 [ 165.959458][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 165.966469][ C1] (detected by 1, t=10502 jiffies, g=6269, q=138) [ 165.972967][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294953748-4294943245), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 165.986408][ C1] syz-executor.1 R running task 26520 8163 8143 0x0000400e [ 165.994306][ C1] Call Trace: [ 165.997581][ C1] [ 166.000429][ C1] sched_show_task+0x40f/0x560 [ 166.005186][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 166.010639][ C1] update_process_times+0x12d/0x180 [ 166.015858][ C1] tick_sched_timer+0x263/0x420 [ 166.020707][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 166.026863][ C1] __hrtimer_run_queues+0x403/0x840 [ 166.032064][ C1] hrtimer_interrupt+0x38c/0xda0 [ 166.037020][ C1] ? debug_smp_processor_id+0x9/0x20 [ 166.042306][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 166.047838][ C1] apic_timer_interrupt+0xf/0x20 [ 166.052756][ C1] [ 166.055683][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x48/0x50 [ 166.061847][ C1] Code: 80 13 00 00 83 fa 02 75 21 48 8b 91 88 13 00 00 48 8b 32 48 8d 7e 01 8b 89 84 13 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 0f 1f 80 00 00 00 00 4c 8b 04 24 65 48 8b 04 25 c0 1d 02 00 65 [ 166.081443][ C1] RSP: 0018:ffffc900026c76a8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 166.089840][ C1] RAX: ffffffff81487326 RBX: ffffea00029bfc80 RCX: 0000000000040000 [ 166.097824][ C1] RDX: ffffc90005f82000 RSI: 000000000003ffff RDI: 0000000000040000 [ 166.105791][ C1] RBP: ffffc900026c76d0 R08: dffffc0000000000 R09: fffffbfff1287025 [ 166.113752][ C1] R10: fffffbfff1287025 R11: 0000000000000000 R12: ffff88808f8263a0 [ 166.121708][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a74cd3e8 [ 166.129684][ C1] ? mod_memcg_page_state+0x16/0x190 [ 166.134961][ C1] ? free_thread_stack+0x124/0x590 [ 166.140056][ C1] ? mod_memcg_page_state+0x16/0x190 [ 166.145328][ C1] free_thread_stack+0x168/0x590 [ 166.150256][ C1] put_task_stack+0xa3/0x130 [ 166.155095][ C1] finish_task_switch+0x3f1/0x550 [ 166.160121][ C1] __schedule+0x9a8/0xcc0 [ 166.164457][ C1] ? ___preempt_schedule+0x16/0x18 [ 166.169571][ C1] preempt_schedule+0xdb/0x120 [ 166.174320][ C1] ___preempt_schedule+0x16/0x18 [ 166.183585][ C1] ? vprintk_emit+0x2fe/0x3a0 [ 166.188246][ C1] ? vprintk_emit+0x368/0x3a0 [ 166.193084][ C1] vprintk_emit+0x36d/0x3a0 [ 166.197587][ C1] vprintk_default+0x28/0x30 [ 166.202164][ C1] vprintk_func+0x158/0x170 [ 166.206661][ C1] printk+0x62/0x8d [ 166.210461][ C1] ? p9_fd_create_tcp+0x558/0x8c0 [ 166.215488][ C1] p9_fd_create_tcp+0x62a/0x8c0 [ 166.220697][ C1] p9_client_create+0x7aa/0xee0 [ 166.225547][ C1] ? __kasan_check_write+0x14/0x20 [ 166.230644][ C1] v9fs_session_init+0x192/0x18e0 [ 166.235652][ C1] ? __fs_reclaim_release+0x4/0x20 [ 166.240762][ C1] ? rcu_read_lock_sched_held+0x10b/0x170 [ 166.246466][ C1] ? trace_kmalloc+0xcd/0x130 [ 166.251129][ C1] ? kmem_cache_alloc_trace+0x23a/0x2f0 [ 166.256662][ C1] v9fs_mount+0x82/0x860 [ 166.260891][ C1] ? safesetid_security_capable+0x89/0xf0 [ 166.266596][ C1] legacy_get_tree+0xf9/0x1a0 [ 166.271269][ C1] ? xfs_fs_commit_blocks+0x660/0x660 [ 166.276631][ C1] vfs_get_tree+0x8b/0x2a0 [ 166.281032][ C1] do_mount+0x16bb/0x24f0 [ 166.285350][ C1] ? copy_mount_options+0x308/0x3c0 [ 166.290535][ C1] ksys_mount+0xcc/0x100 [ 166.294766][ C1] __x64_sys_mount+0xbf/0xd0 [ 166.299342][ C1] do_syscall_64+0xf7/0x1c0 [ 166.303836][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 166.309717][ C1] RIP: 0033:0x45a679 [ 166.313599][ C1] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 166.333189][ C1] RSP: 002b:00007fde383a5c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 166.341590][ C1] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045a679 [ 166.349547][ C1] RDX: 0000000020000280 RSI: 00000000200000c0 RDI: 0000000020000040 [ 166.357511][ C1] RBP: 000000000075bfc8 R08: 0000000020000200 R09: 0000000000000000 [ 166.365469][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fde383a66d4 [ 166.373618][ C1] R13: 00000000004c799b R14: 00000000004de798 R15: 00000000ffffffff [ 166.381604][ C1] rcu: rcu_preempt kthread starved for 10544 jiffies! g6269 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.392682][ C1] rcu: RCU grace-period kthread stack dump: [ 166.398557][ C1] rcu_preempt R running task 29032 10 2 0x80004008 [ 166.406447][ C1] Call Trace: [ 166.409727][ C1] __schedule+0x9a8/0xcc0 [ 166.414137][ C1] schedule+0x181/0x210 [ 166.418302][ C1] schedule_timeout+0x14f/0x240 [ 166.423148][ C1] ? run_local_timers+0x120/0x120 [ 166.428163][ C1] rcu_gp_kthread+0xed8/0x1770 [ 166.432925][ C1] kthread+0x332/0x350 [ 166.436976][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 166.442085][ C1] ? kthread_blkcg+0xe0/0xe0 [ 166.446664][ C1] ret_from_fork+0x24/0x30