[ 41.966623][ T23] audit: type=1800 audit(1575428088.277:26): pid=7969 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.001466][ T23] audit: type=1800 audit(1575428088.287:27): pid=7969 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.043628][ T23] audit: type=1800 audit(1575428088.287:28): pid=7969 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. [ 42.758137][ T23] audit: type=1800 audit(1575428089.107:29): pid=7969 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.197' (ECDSA) to the list of known hosts. 2019/12/04 02:54:57 fuzzer started 2019/12/04 02:54:59 dialing manager at 10.128.0.26:42111 2019/12/04 02:54:59 syscalls: 2689 2019/12/04 02:54:59 code coverage: enabled 2019/12/04 02:54:59 comparison tracing: enabled 2019/12/04 02:54:59 extra coverage: extra coverage is not supported by the kernel 2019/12/04 02:54:59 setuid sandbox: enabled 2019/12/04 02:54:59 namespace sandbox: enabled 2019/12/04 02:54:59 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 02:54:59 fault injection: enabled 2019/12/04 02:54:59 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 02:54:59 net packet injection: enabled 2019/12/04 02:54:59 net device setup: enabled 2019/12/04 02:54:59 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 02:54:59 devlink PCI setup: PCI device 0000:00:10.0 is not available 02:55:00 executing program 0: r0 = socket(0x2000000000000021, 0x2, 0x2) sendto$inet(r0, 0x0, 0x0, 0x801, 0x0, 0x0) 02:55:00 executing program 1: r0 = gettid() rt_sigqueueinfo(r0, 0x0, &(0x7f00000000c0)={0x0, 0x0, 0x4}) syzkaller login: [ 54.433781][ T8132] IPVS: ftp: loaded support on port[0] = 21 [ 54.552742][ T8132] chnl_net:caif_netlink_parms(): no params data found [ 54.638974][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.646581][ T8132] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.654792][ T8132] device bridge_slave_0 entered promiscuous mode [ 54.671022][ T8135] IPVS: ftp: loaded support on port[0] = 21 [ 54.677964][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state 02:55:01 executing program 2: r0 = socket$inet_udp(0x2, 0x2, 0x0) close(r0) socket(0x2, 0x3, 0xff) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000080)='ip6_vti0\x00 \x00', 0x10) connect$inet(r0, &(0x7f0000000200)={0x2, 0x0, @initdev}, 0x10) write$binfmt_elf32(r0, &(0x7f0000000100)=ANY=[@ANYBLOB="4ef27f454dfb0000043a9806ff01000000000000000205e00000000070000000000000000000000000930b1a6b4c45d9f2b2000000000000"], 0x38) [ 54.685121][ T8132] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.697502][ T8132] device bridge_slave_1 entered promiscuous mode [ 54.746460][ T8132] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 54.770580][ T8132] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 54.847743][ T8132] team0: Port device team_slave_0 added [ 54.866847][ T8132] team0: Port device team_slave_1 added 02:55:01 executing program 3: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000200)={0xd4, 0x1e, 0x829, 0x0, 0x0, {0x13}, [@nested={0xc0, 0xe, [@typed={0xffffffffffffff0b, 0x0, @binary="00000000009f6bbf531064cf0000000000009a5d466c093afadee8d32998fd03088cee06da2e647200d6dfabf98650321a7d6390509b5112df32d0415464e1c61a6da8222cbc5a5056bd6402bab23cd996c1c68dbf6794600cf5d914019fa39ca592656c8fbbf93d354b3cb8b7909dfd32df423c4af9a5adae7e949b99dd0a7905c9a0e2c5649348e16808e3d121b42fcf17982b6bdde299ece08a91d0bf4c9db126ab1c9d8c982fa71d7d276d4f328afeb2959dee"}]}]}, 0xd4}, 0x1, 0x6087ffffffff}, 0x0) [ 55.009191][ T8132] device hsr_slave_0 entered promiscuous mode [ 55.036888][ T8132] device hsr_slave_1 entered promiscuous mode [ 55.091042][ T8135] chnl_net:caif_netlink_parms(): no params data found [ 55.100878][ T8137] IPVS: ftp: loaded support on port[0] = 21 [ 55.135571][ T8140] IPVS: ftp: loaded support on port[0] = 21 02:55:01 executing program 4: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet_tcp(0x2, 0x1, 0x0) r1 = dup(r0) getsockopt$IP_VS_SO_GET_DESTS(r1, 0x0, 0x487, &(0x7f0000000080)=""/4096, &(0x7f0000001080)=0x1000) [ 55.222258][ T8135] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.230384][ T8135] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.238359][ T8135] device bridge_slave_0 entered promiscuous mode [ 55.245808][ T8132] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.319529][ T8135] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.337615][ T8135] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.345580][ T8135] device bridge_slave_1 entered promiscuous mode [ 55.367443][ T8132] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.401351][ T8132] netdevsim netdevsim0 netdevsim2: renamed from eth2 02:55:01 executing program 5: perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x0, 0x100}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$loop(&(0x7f0000000380)='/dev/loop#\x00', 0x0, 0x0) sysinfo(&(0x7f00000007c0)=""/154) ioctl$BLKPG(r0, 0x1269, &(0x7f0000000280)={0x1, 0x0, 0x0, &(0x7f0000000800)}) alarm(0x0) recvfrom$unix(0xffffffffffffffff, &(0x7f0000000140)=""/127, 0x1a0, 0x40000000, 0x0, 0x0) r1 = socket$inet(0x2, 0x4000000000000001, 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c06, 0xffffffffffffffff) setsockopt$inet_tcp_int(r1, 0x6, 0x2, 0x0, 0x0) r2 = socket$inet6(0xa, 0x400000000001, 0x0) close(r2) r3 = open(&(0x7f0000002000)='./bus\x00', 0x983042, 0x8) ftruncate(r3, 0x2008002) sendfile(0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0x0) setsockopt$bt_l2cap_L2CAP_OPTIONS(r3, 0x6, 0x1, &(0x7f0000000100)={0x9, 0xa05a, 0x9, 0x45, 0x0, 0x6, 0x101}, 0xc) sendto$inet(r1, 0x0, 0x0, 0x20000804, &(0x7f0000000000)={0x2, 0x0, @local}, 0x10) pipe(&(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) r6 = socket$alg(0x26, 0x5, 0x0) bind$alg(r6, &(0x7f0000000000)={0x26, 'aead\x00', 0x0, 0x0, 'aegis128-generic\x00'}, 0x58) r7 = accept$alg(r6, 0x0, 0x0) splice(r7, 0x0, r5, 0x0, 0x100000, 0x0) pipe(&(0x7f0000000280)) r8 = socket$alg(0x26, 0x5, 0x0) bind$alg(r8, &(0x7f0000000000)={0x26, 'aead\x00', 0x0, 0x0, 'aegis128-generic\x00'}, 0x58) accept$alg(r8, 0x0, 0x0) getsockopt$inet_sctp_SCTP_DEFAULT_SNDINFO(r4, 0x84, 0x22, &(0x7f00000003c0)={0x101, 0x5, 0x2, 0x40, 0x0}, &(0x7f0000000400)=0x10) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER(r3, 0x84, 0x7b, &(0x7f0000000200)={r9, 0xc000}, &(0x7f00000002c0)=0xfffffffffffffddf) setsockopt$inet_sctp_SCTP_RECONFIG_SUPPORTED(r5, 0x84, 0x75, &(0x7f0000000340)={r10, 0x7}, 0x8) socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000000c0)) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x400200) [ 55.471638][ T8132] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.534408][ T8142] IPVS: ftp: loaded support on port[0] = 21 [ 55.552598][ T8135] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.581208][ T8132] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.588453][ T8132] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.596157][ T8132] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.603306][ T8132] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.618301][ T8135] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.632320][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.640794][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.698681][ T8135] team0: Port device team_slave_0 added [ 55.707868][ T8135] team0: Port device team_slave_1 added [ 55.737315][ T8140] chnl_net:caif_netlink_parms(): no params data found [ 55.761334][ T8144] IPVS: ftp: loaded support on port[0] = 21 [ 55.849140][ T8135] device hsr_slave_0 entered promiscuous mode [ 55.907065][ T8135] device hsr_slave_1 entered promiscuous mode [ 55.946797][ T8135] debugfs: Directory 'hsr0' with parent '/' already present! [ 55.972708][ T8140] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.980564][ T8140] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.988513][ T8140] device bridge_slave_0 entered promiscuous mode [ 56.024954][ T8140] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.032946][ T8140] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.041269][ T8140] device bridge_slave_1 entered promiscuous mode [ 56.065208][ T8137] chnl_net:caif_netlink_parms(): no params data found [ 56.122067][ T8140] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.131664][ T8135] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 56.183342][ T8135] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 56.261631][ T8135] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 56.327151][ T8140] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.346911][ T8132] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.356331][ T8135] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 56.407845][ T8137] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.414973][ T8137] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.423096][ T8137] device bridge_slave_0 entered promiscuous mode [ 56.451596][ T3133] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.460691][ T3133] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.469495][ T8137] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.477117][ T8137] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.484728][ T8137] device bridge_slave_1 entered promiscuous mode [ 56.492335][ T8142] chnl_net:caif_netlink_parms(): no params data found [ 56.503788][ T8132] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.515285][ T8140] team0: Port device team_slave_0 added [ 56.528361][ T8140] team0: Port device team_slave_1 added [ 56.558142][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.567158][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.575561][ T3956] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.582657][ T3956] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.591510][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.600542][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.609730][ T3956] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.616815][ T3956] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.624249][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.633104][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.641490][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.650077][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.662714][ T3956] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.677986][ T8137] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.750745][ T8140] device hsr_slave_0 entered promiscuous mode [ 56.796822][ T8140] device hsr_slave_1 entered promiscuous mode [ 56.856643][ T8140] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.882201][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.892111][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.900620][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.911221][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.921395][ T8137] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.946265][ T8137] team0: Port device team_slave_0 added [ 56.965501][ T8142] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.974406][ T8142] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.982906][ T8142] device bridge_slave_0 entered promiscuous mode [ 56.990802][ T8142] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.998539][ T8142] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.006166][ T8142] device bridge_slave_1 entered promiscuous mode [ 57.014412][ T8137] team0: Port device team_slave_1 added [ 57.023764][ T8144] chnl_net:caif_netlink_parms(): no params data found [ 57.046313][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.057177][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.072758][ T8142] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.100684][ T8142] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.128717][ T8142] team0: Port device team_slave_0 added [ 57.144498][ T8132] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.188714][ T8137] device hsr_slave_0 entered promiscuous mode [ 57.247090][ T8137] device hsr_slave_1 entered promiscuous mode [ 57.286721][ T8137] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.295961][ T8142] team0: Port device team_slave_1 added [ 57.314005][ T8144] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.323333][ T8144] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.331321][ T8144] device bridge_slave_0 entered promiscuous mode [ 57.353450][ T8144] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.360889][ T8144] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.369507][ T8144] device bridge_slave_1 entered promiscuous mode [ 57.386272][ T8140] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 57.442611][ T8140] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 57.559356][ T8142] device hsr_slave_0 entered promiscuous mode [ 57.597019][ T8142] device hsr_slave_1 entered promiscuous mode [ 57.646611][ T8142] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.654219][ T8140] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 57.700792][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.708708][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.721254][ T8144] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.734495][ T8132] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.746078][ T8140] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 57.803951][ T8144] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.832710][ T8144] team0: Port device team_slave_0 added [ 57.839986][ T8144] team0: Port device team_slave_1 added [ 57.860585][ T8137] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 162.986494][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 162.993494][ C1] (detected by 1, t=10502 jiffies, g=5857, q=128) [ 162.999987][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294953436-4294942934), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 163.013330][ C1] rcu_preempt R running task 29104 10 2 0x80004008 [ 163.021219][ C1] Call Trace: [ 163.024489][ C1] [ 163.027340][ C1] sched_show_task+0x40f/0x560 [ 163.032099][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 163.037376][ C1] update_process_times+0x12d/0x180 [ 163.042566][ C1] tick_sched_timer+0x263/0x420 [ 163.047409][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 163.052944][ C1] __hrtimer_run_queues+0x403/0x840 [ 163.058142][ C1] hrtimer_interrupt+0x38c/0xda0 [ 163.063085][ C1] ? debug_smp_processor_id+0x9/0x20 [ 163.068362][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 163.073901][ C1] apic_timer_interrupt+0xf/0x20 [ 163.078819][ C1] [ 163.081749][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 163.087896][ C1] Code: 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 f7 c2 00 01 1f 00 75 2c 8b 91 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 [ 163.107489][ C1] RSP: 0018:ffffc90000d0fc10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 163.115894][ C1] RAX: ffffffff81487326 RBX: ffffea00029e47c0 RCX: ffff8880a9de8280 [ 163.123852][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00029e47c0 [ 163.131811][ C1] RBP: ffffc90000d0fc38 R08: dffffc0000000000 R09: fffffbfff120248a [ 163.139772][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c0934a0 [ 163.147737][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a8be73e8 [ 163.155743][ C1] ? mod_memcg_page_state+0x16/0x190 [ 163.161053][ C1] ? mod_memcg_page_state+0x16/0x190 [ 163.166360][ C1] free_thread_stack+0x168/0x590 [ 163.171301][ C1] put_task_stack+0xa3/0x130 [ 163.175885][ C1] finish_task_switch+0x3f1/0x550 [ 163.180905][ C1] __schedule+0x9a8/0xcc0 [ 163.185232][ C1] schedule+0x181/0x210 [ 163.189377][ C1] schedule_timeout+0x14f/0x240 [ 163.194218][ C1] ? run_local_timers+0x120/0x120 [ 163.199236][ C1] rcu_gp_kthread+0xed8/0x1770 [ 163.204000][ C1] kthread+0x332/0x350 [ 163.208057][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 163.213159][ C1] ? kthread_blkcg+0xe0/0xe0 [ 163.217737][ C1] ret_from_fork+0x24/0x30 [ 163.222159][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g5857 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 163.233238][ C1] rcu: RCU grace-period kthread stack dump: [ 163.239112][ C1] rcu_preempt R running task 29104 10 2 0x80004008 [ 163.247004][ C1] Call Trace: [ 163.250277][ C1] [ 163.253124][ C1] sched_show_task+0x40f/0x560 [ 163.257884][ C1] rcu_check_gp_kthread_starvation+0x170/0x1b0 [ 163.264028][ C1] rcu_sched_clock_irq+0x17d3/0x1ad0 [ 163.269313][ C1] update_process_times+0x12d/0x180 [ 163.274508][ C1] tick_sched_timer+0x263/0x420 [ 163.279344][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 163.284876][ C1] __hrtimer_run_queues+0x403/0x840 [ 163.290078][ C1] hrtimer_interrupt+0x38c/0xda0 [ 163.295026][ C1] ? debug_smp_processor_id+0x9/0x20 [ 163.300311][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 163.305851][ C1] apic_timer_interrupt+0xf/0x20 [ 163.311298][ C1] [ 163.314251][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 163.320395][ C1] Code: 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 f7 c2 00 01 1f 00 75 2c 8b 91 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 [ 163.339992][ C1] RSP: 0018:ffffc90000d0fc10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 163.348388][ C1] RAX: ffffffff81487326 RBX: ffffea00029e47c0 RCX: ffff8880a9de8280 [ 163.356349][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00029e47c0 [ 163.364311][ C1] RBP: ffffc90000d0fc38 R08: dffffc0000000000 R09: fffffbfff120248a [ 163.372272][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88806c0934a0 [ 163.380230][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a8be73e8 [ 163.388289][ C1] ? mod_memcg_page_state+0x16/0x190 [ 163.393564][ C1] ? mod_memcg_page_state+0x16/0x190 [ 163.398838][ C1] free_thread_stack+0x168/0x590 [ 163.403770][ C1] put_task_stack+0xa3/0x130 [ 163.408349][ C1] finish_task_switch+0x3f1/0x550 [ 163.413366][ C1] __schedule+0x9a8/0xcc0 [ 163.417691][ C1] schedule+0x181/0x210 [ 163.421868][ C1] schedule_timeout+0x14f/0x240 [ 163.426722][ C1] ? run_local_timers+0x120/0x120 [ 163.431770][ C1] rcu_gp_kthread+0xed8/0x1770 [ 163.436554][ C1] kthread+0x332/0x350 [ 163.440618][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 163.445728][ C1] ? kthread_blkcg+0xe0/0xe0 [ 163.450310][ C1] ret_from_fork+0x24/0x30