[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.024838][ T27] audit: type=1800 audit(1578467949.599:25): pid=8373 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.053754][ T27] audit: type=1800 audit(1578467949.599:26): pid=8373 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 51.094637][ T27] audit: type=1800 audit(1578467949.599:27): pid=8373 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 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 '10.128.10.42' (ECDSA) to the list of known hosts. 2020/01/08 07:19:21 fuzzer started 2020/01/08 07:19:22 dialing manager at 10.128.0.26:35703 2020/01/08 07:19:22 syscalls: 2824 2020/01/08 07:19:22 code coverage: enabled 2020/01/08 07:19:22 comparison tracing: enabled 2020/01/08 07:19:22 extra coverage: enabled 2020/01/08 07:19:22 setuid sandbox: enabled 2020/01/08 07:19:22 namespace sandbox: enabled 2020/01/08 07:19:22 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 07:19:22 fault injection: enabled 2020/01/08 07:19:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 07:19:22 net packet injection: enabled 2020/01/08 07:19:22 net device setup: enabled 2020/01/08 07:19:22 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 07:19:22 devlink PCI setup: PCI device 0000:00:10.0 is not available 07:19:23 executing program 0: r0 = syz_init_net_socket$x25(0x9, 0x5, 0x0) ioctl$SIOCX25GSUBSCRIP(r0, 0x8943, &(0x7f0000000740)) 07:19:23 executing program 1: r0 = open(&(0x7f0000000080)='./bus\x00', 0x149042, 0x0) r1 = creat(&(0x7f0000000300)='./file0\x00', 0xdea8f0f2813ced9f) ioctl$EXT4_IOC_MOVE_EXT(r0, 0xc028660f, &(0x7f0000000200)={0x0, r1}) syzkaller login: [ 64.763446][ T8539] IPVS: ftp: loaded support on port[0] = 21 [ 64.892475][ T8539] chnl_net:caif_netlink_parms(): no params data found [ 64.938471][ T8539] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.948652][ T8539] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.958164][ T8539] device bridge_slave_0 entered promiscuous mode [ 64.976706][ T8539] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.004536][ T8539] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.012917][ T8539] device bridge_slave_1 entered promiscuous mode [ 65.029085][ T8542] IPVS: ftp: loaded support on port[0] = 21 07:19:23 executing program 2: pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$unix(0x1, 0x1, 0x0) r3 = socket$unix(0x1, 0x1, 0x0) r4 = dup2(r3, r2) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) r5 = socket$inet_udp(0x2, 0x2, 0x0) close(r5) socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="1800000031002908100000000000000002"], 0x1}, 0x1, 0xffffff7f0e000000}, 0x0) write$binfmt_misc(r1, &(0x7f0000000000)=ANY=[], 0xfffffecc) splice(r0, 0x0, r5, 0x0, 0x4ffe0, 0x0) [ 65.056740][ T8539] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.079342][ T8539] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.129244][ T8539] team0: Port device team_slave_0 added [ 65.148272][ T8539] team0: Port device team_slave_1 added 07:19:23 executing program 3: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x1, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x61, 0x10, 0x18}, [@ldst={0x4, 0x3, 0x4}]}, &(0x7f0000003ff6)='GPL\x00', 0x5, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000000), 0x1dd}, 0x48) [ 65.276413][ T8539] device hsr_slave_0 entered promiscuous mode [ 65.334376][ T8539] device hsr_slave_1 entered promiscuous mode [ 65.430774][ T8545] IPVS: ftp: loaded support on port[0] = 21 [ 65.439133][ T8542] chnl_net:caif_netlink_parms(): no params data found [ 65.505961][ T8547] IPVS: ftp: loaded support on port[0] = 21 07:19:24 executing program 4: r0 = syz_init_net_socket$llc(0x1a, 0x2, 0x0) sendmsg(r0, &(0x7f000000d280)={&(0x7f000000d000)=@sco={0x1f, {0x0, 0x2}}, 0x80, 0x0}, 0x0) [ 65.594243][ T8542] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.601338][ T8542] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.609890][ T8542] device bridge_slave_0 entered promiscuous mode [ 65.659964][ T8542] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.676819][ T8542] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.687775][ T8542] device bridge_slave_1 entered promiscuous mode [ 65.726306][ T8542] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.806420][ T8542] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 07:19:24 executing program 5: r0 = openat$nullb(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/nullb0\x00', 0x165562, 0x0) fallocate(r0, 0x0, 0x2, 0x7fffffffffffffff) [ 65.848833][ T8550] IPVS: ftp: loaded support on port[0] = 21 [ 65.867797][ T8539] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 65.932082][ T8547] chnl_net:caif_netlink_parms(): no params data found [ 65.966182][ T8542] team0: Port device team_slave_0 added [ 65.971975][ T8539] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.026441][ T8545] chnl_net:caif_netlink_parms(): no params data found [ 66.049690][ T8542] team0: Port device team_slave_1 added [ 66.058072][ T8539] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.196509][ T8542] device hsr_slave_0 entered promiscuous mode [ 66.264016][ T8542] device hsr_slave_1 entered promiscuous mode [ 66.344186][ T8542] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.352205][ T8542] Cannot create hsr debugfs directory [ 66.358854][ T8539] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.432714][ T8553] IPVS: ftp: loaded support on port[0] = 21 [ 66.453646][ T8547] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.461888][ T8547] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.470992][ T8547] device bridge_slave_0 entered promiscuous mode [ 66.484184][ T8547] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.491441][ T8547] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.499308][ T8547] device bridge_slave_1 entered promiscuous mode [ 66.540181][ T8547] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.573164][ T8545] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.580607][ T8545] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.588622][ T8545] device bridge_slave_0 entered promiscuous mode [ 66.597890][ T8545] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.605072][ T8545] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.612620][ T8545] device bridge_slave_1 entered promiscuous mode [ 66.620878][ T8547] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.666248][ T8539] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.716646][ T8547] team0: Port device team_slave_0 added [ 66.728019][ T8545] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.739663][ T8545] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.770339][ T8547] team0: Port device team_slave_1 added [ 66.808094][ T8539] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.828257][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.836853][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.853072][ T8550] chnl_net:caif_netlink_parms(): no params data found [ 66.865309][ T8542] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 66.931195][ T8542] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 66.977263][ T8542] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.038579][ T8545] team0: Port device team_slave_0 added [ 67.046323][ T8545] team0: Port device team_slave_1 added [ 67.117106][ T8547] device hsr_slave_0 entered promiscuous mode [ 67.154084][ T8547] device hsr_slave_1 entered promiscuous mode [ 67.193846][ T8547] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.201478][ T8547] Cannot create hsr debugfs directory [ 67.209606][ T8542] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.257196][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.268579][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.277297][ T2880] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.284622][ T2880] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.336549][ T8545] device hsr_slave_0 entered promiscuous mode [ 67.374256][ T8545] device hsr_slave_1 entered promiscuous mode [ 67.413875][ T8545] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.421693][ T8545] Cannot create hsr debugfs directory [ 67.440524][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.448597][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.458082][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.466919][ T2878] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.474013][ T2878] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.490498][ T8553] chnl_net:caif_netlink_parms(): no params data found [ 67.538876][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.551267][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.581033][ T8553] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.588736][ T8553] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.596770][ T8553] device bridge_slave_0 entered promiscuous mode [ 67.604137][ T8550] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.611766][ T8550] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.620003][ T8550] device bridge_slave_0 entered promiscuous mode [ 67.630323][ T8550] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.637458][ T8550] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.645542][ T8550] device bridge_slave_1 entered promiscuous mode [ 67.662129][ T8553] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.670158][ T8553] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.678024][ T8553] device bridge_slave_1 entered promiscuous mode [ 67.701778][ T8553] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.728689][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.737534][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.747445][ T8553] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.781049][ T8550] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.791489][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.803163][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.811967][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.820652][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.829095][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.859835][ T8553] team0: Port device team_slave_0 added [ 67.867149][ T8550] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.889185][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.897728][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.909490][ T8539] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.922451][ T8553] team0: Port device team_slave_1 added [ 67.941380][ T8550] team0: Port device team_slave_0 added [ 67.979099][ T8550] team0: Port device team_slave_1 added [ 67.990169][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.998319][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.010579][ T8547] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.056796][ T8547] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 68.095949][ T8547] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.158945][ T8539] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.236636][ T8553] device hsr_slave_0 entered promiscuous mode [ 68.274234][ T8553] device hsr_slave_1 entered promiscuous mode [ 68.313831][ T8553] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.321546][ T8553] Cannot create hsr debugfs directory [ 68.328007][ T8547] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.435318][ T8545] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.516631][ T8550] device hsr_slave_0 entered promiscuous mode [ 68.555021][ T8550] device hsr_slave_1 entered promiscuous mode [ 68.613980][ T8550] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.621554][ T8550] Cannot create hsr debugfs directory [ 68.629696][ T8542] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.640535][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.649623][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.674471][ T8545] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 68.723346][ T8545] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 68.797474][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.807277][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.816554][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.824336][ T2896] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.839043][ T8539] device veth0_vlan entered promiscuous mode [ 68.847807][ T8545] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 68.898537][ T8542] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.910630][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.922986][ T2725] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.991509][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.003435][ T2878] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.016332][ T2878] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.023510][ T2878] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.032358][ T8539] device veth1_vlan entered promiscuous mode [ 69.049965][ T8553] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.077313][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.087072][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.095128][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.103591][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.112980][ T2880] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.120244][ T2880] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.129268][ T2880] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.160415][ T8553] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.189330][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.197784][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.206624][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.217762][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.244514][ T8550] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 69.266225][ T8553] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.306235][ T8553] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.347753][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.356724][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.366231][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.375030][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.383214][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.391683][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.400530][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.411331][ T8550] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 69.455891][ T8550] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 69.496649][ T8550] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 174.513667][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 174.520785][ C0] (detected by 0, t=10502 jiffies, g=6613, q=93) [ 174.527189][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954582-4294944079), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 174.540617][ C0] blkid X running task 28312 8557 0 0x8000400a [ 174.548940][ C0] Call Trace: [ 174.552328][ C0] [ 174.555184][ C0] sched_show_task+0x40f/0x560 [ 174.559951][ C0] rcu_sched_clock_irq+0x1861/0x1ad0 [ 174.565237][ C0] update_process_times+0x12d/0x180 [ 174.570445][ C0] tick_sched_timer+0x263/0x420 [ 174.575288][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.580823][ C0] __hrtimer_run_queues+0x403/0x840 [ 174.586031][ C0] hrtimer_interrupt+0x38c/0xda0 [ 174.590972][ C0] ? debug_smp_processor_id+0x9/0x20 [ 174.596440][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 174.601983][ C0] apic_timer_interrupt+0xf/0x20 [ 174.606903][ C0] [ 174.609843][ C0] RIP: 0010:__memcg_kmem_uncharge+0x0/0x1a0 [ 174.615723][ C0] Code: 00 eb 1b 83 3d 20 bf ac 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 8c 85 ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 57 41 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 [ 174.635664][ C0] RSP: 0018:ffffc900023a7b90 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 174.644086][ C0] RAX: ffffffff81489244 RBX: ffffea00024b0e00 RCX: ffff8880970d0240 [ 174.652060][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea00024b0e00 [ 174.660125][ C0] RBP: ffffc900023a7bd0 R08: 000000000003a728 R09: ffffed1014f52339 [ 174.668261][ C0] R10: ffffed1014f52339 R11: 0000000000000000 R12: ffff88808d1854a0 [ 174.676236][ C0] R13: dffffc0000000000 R14: 1ffff11011a30a94 R15: ffff8880a7a919b8 [ 174.684315][ C0] ? free_thread_stack+0x124/0x590 [ 174.689429][ C0] ? free_thread_stack+0x12e/0x590 [ 174.694536][ C0] put_task_stack+0xa3/0x130 [ 174.700419][ C0] finish_task_switch+0x3f1/0x550 [ 174.705440][ C0] __schedule+0x9a8/0xcc0 [ 174.709796][ C0] ? ___preempt_schedule+0x16/0x18 [ 174.714905][ C0] preempt_schedule+0xdb/0x120 [ 174.719660][ C0] ___preempt_schedule+0x16/0x18 [ 174.724594][ C0] ? do_exit+0x147c/0x2000 [ 174.729184][ C0] _raw_write_unlock_irq+0x77/0x80 [ 174.734283][ C0] do_exit+0x147c/0x2000 [ 174.738574][ C0] do_group_exit+0x15c/0x2b0 [ 174.743183][ C0] __do_sys_exit_group+0x17/0x20 [ 174.748132][ C0] __se_sys_exit_group+0x14/0x20 [ 174.753061][ C0] __x64_sys_exit_group+0x3b/0x40 [ 174.758077][ C0] do_syscall_64+0xf7/0x1c0 [ 174.763718][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.769599][ C0] RIP: 0033:0x7f5e5aeb31e8 [ 174.774093][ C0] Code: Bad RIP value. [ 174.778149][ C0] RSP: 002b:00007ffe7f541348 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 174.786549][ C0] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5e5aeb31e8 [ 174.794507][ C0] RDX: 0000000000000002 RSI: 000000000000003c RDI: 0000000000000002 [ 174.802470][ C0] RBP: 00007f5e5b188840 R08: 00000000000000e7 R09: ffffffffffffffa8 [ 174.810444][ C0] R10: 00007f5e5b18e740 R11: 0000000000000246 R12: 00007f5e5b188840 [ 174.819011][ C0] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 174.826993][ C0] rcu: rcu_preempt kthread starved for 10533 jiffies! g6613 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 174.838076][ C0] rcu: RCU grace-period kthread stack dump: [ 174.843954][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 174.852122][ C0] Call Trace: [ 174.855440][ C0] __schedule+0x9a0/0xcc0 [ 174.859774][ C0] schedule+0x181/0x210 [ 174.863928][ C0] schedule_timeout+0x14f/0x240 [ 174.868774][ C0] ? run_local_timers+0x120/0x120 [ 174.873794][ C0] rcu_gp_kthread+0xed8/0x1770 [ 174.878582][ C0] kthread+0x332/0x350 [ 174.882678][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 174.887806][ C0] ? kthread_blkcg+0xe0/0xe0 [ 174.892402][ C0] ret_from_fork+0x24/0x30