[ 42.724912] audit: type=1400 audit(1583325605.468:37): avc: denied { map } for pid=6802 comm="syz-fuzzer" path="/root/syzkaller-shm677166855" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
[ 42.990902] IPVS: ftp: loaded support on port[0] = 21
[ 44.170201] can: request_module (can-proto-0) failed.
[ 44.179957] can: request_module (can-proto-0) failed.
[ 44.362277] audit: type=1400 audit(1583325607.108:38): avc: denied { create } for pid=6802 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1
[ 44.385946] audit: type=1400 audit(1583325607.108:39): avc: denied { create } for pid=6802 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
[ 44.409845] audit: type=1400 audit(1583325607.108:40): avc: denied { create } for pid=6802 comm="syz-fuzzer" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1
[ 44.707733] random: sshd: uninitialized urandom read (32 bytes read)
[ 45.458854] random: sshd: uninitialized urandom read (32 bytes read)
[ 45.662880] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts.
2020/03/04 12:40:15 parsed 1 programs
2020/03/04 12:40:15 executed programs: 0
[ 52.870965] IPVS: ftp: loaded support on port[0] = 21
[ 53.685397] IPVS: ftp: loaded support on port[0] = 21
[ 53.713575] chnl_net:caif_netlink_parms(): no params data found
[ 53.741546] bridge0: port 1(bridge_slave_0) entered blocking state
[ 53.748311] bridge0: port 1(bridge_slave_0) entered disabled state
[ 53.755470] device bridge_slave_0 entered promiscuous mode
[ 53.762632] bridge0: port 2(bridge_slave_1) entered blocking state
[ 53.769266] bridge0: port 2(bridge_slave_1) entered disabled state
[ 53.776554] device bridge_slave_1 entered promiscuous mode
[ 53.801120] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 53.811930] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 53.834162] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 53.841643] team0: Port device team_slave_0 added
[ 53.848961] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 53.856414] team0: Port device team_slave_1 added
[ 53.861767] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 53.869085] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 53.911219] IPVS: ftp: loaded support on port[0] = 21
[ 53.931879] device hsr_slave_0 entered promiscuous mode
[ 53.970314] device hsr_slave_1 entered promiscuous mode
[ 54.040722] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
[ 54.051628] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
[ 54.102121] chnl_net:caif_netlink_parms(): no params data found
[ 54.117453] bridge0: port 2(bridge_slave_1) entered blocking state
[ 54.123923] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 54.130863] bridge0: port 1(bridge_slave_0) entered blocking state
[ 54.137209] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 54.183315] bridge0: port 1(bridge_slave_0) entered blocking state
[ 54.189766] bridge0: port 1(bridge_slave_0) entered disabled state
[ 54.197438] device bridge_slave_0 entered promiscuous mode
[ 54.204210] bridge0: port 2(bridge_slave_1) entered blocking state
[ 54.210708] bridge0: port 2(bridge_slave_1) entered disabled state
[ 54.217648] device bridge_slave_1 entered promiscuous mode
[ 54.237958] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 54.248442] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 54.268745] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 54.276299] IPVS: ftp: loaded support on port[0] = 21
[ 54.280623] team0: Port device team_slave_0 added
[ 54.289108] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 54.296491] team0: Port device team_slave_1 added
[ 54.304968] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 54.313889] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 54.411876] device hsr_slave_0 entered promiscuous mode
[ 54.450342] device hsr_slave_1 entered promiscuous mode
[ 54.504473] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
[ 54.518124] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
[ 54.530962] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
[ 54.537073] 8021q: adding VLAN 0 to HW filter on device bond0
[ 54.543286] chnl_net:caif_netlink_parms(): no params data found
[ 54.569147] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[ 54.579648] bridge0: port 2(bridge_slave_1) entered blocking state
[ 54.586055] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 54.592677] bridge0: port 1(bridge_slave_0) entered blocking state
[ 54.599033] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 54.611395] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 54.620423] bridge0: port 1(bridge_slave_0) entered disabled state
[ 54.627852] bridge0: port 2(bridge_slave_1) entered disabled state
[ 54.635412] bridge0: port 1(bridge_slave_0) entered disabled state
[ 54.642799] bridge0: port 2(bridge_slave_1) entered disabled state
[ 54.654496] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
[ 54.660796] 8021q: adding VLAN 0 to HW filter on device team0
[ 54.673441] IPVS: ftp: loaded support on port[0] = 21
[ 54.689830] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready
[ 54.698629] bridge0: port 1(bridge_slave_0) entered blocking state
[ 54.705191] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 54.713632] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready
[ 54.721719] bridge0: port 2(bridge_slave_1) entered blocking state
[ 54.728077] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 54.739604] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[ 54.750912] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready
[ 54.761167] bridge0: port 1(bridge_slave_0) entered blocking state
[ 54.767621] bridge0: port 1(bridge_slave_0) entered disabled state
[ 54.775515] device bridge_slave_0 entered promiscuous mode
[ 54.782453] bridge0: port 2(bridge_slave_1) entered blocking state
[ 54.788812] bridge0: port 2(bridge_slave_1) entered disabled state
[ 54.795961] device bridge_slave_1 entered promiscuous mode
[ 54.803932] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready
[ 54.811536] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready
[ 54.819154] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready
[ 54.827080] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[ 54.834910] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[ 54.896688] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready
[ 54.908075] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready
[ 54.916256] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 54.925337] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 54.935304] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready
[ 54.943281] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[ 54.951075] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready
[ 54.958654] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
[ 54.980714] IPVS: ftp: loaded support on port[0] = 21
[ 54.994101] chnl_net:caif_netlink_parms(): no params data found
[ 55.004102] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready
[ 55.015040] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 55.025769] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
[ 55.031949] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 55.039066] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 55.047716] team0: Port device team_slave_0 added
[ 55.056527] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready
[ 55.064350] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready
[ 55.083607] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 55.090808] team0: Port device team_slave_1 added
[ 55.118515] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 55.173660] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 55.195368] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
[ 55.209124] chnl_net:caif_netlink_parms(): no params data found
[ 55.224195] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.230878] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.238044] device bridge_slave_0 entered promiscuous mode
[ 55.247813] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 55.302613] device hsr_slave_0 entered promiscuous mode
[ 55.340322] device hsr_slave_1 entered promiscuous mode
[ 55.406528] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.413418] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.420699] device bridge_slave_1 entered promiscuous mode
[ 55.434723] 8021q: adding VLAN 0 to HW filter on device bond0
[ 55.448506] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
[ 55.456058] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
[ 55.477448] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[ 55.485815] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 55.533185] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
[ 55.540503] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 55.549185] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
[ 55.556164] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[ 55.568145] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready
[ 55.597702] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.610356] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.618550] device bridge_slave_0 entered promiscuous mode
[ 55.629387] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.636065] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.647053] device bridge_slave_1 entered promiscuous mode
[ 55.668741] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 55.681770] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 55.718526] chnl_net:caif_netlink_parms(): no params data found
[ 55.778319] bridge0: port 1(bridge_slave_0) entered blocking state
[ 55.789380] bridge0: port 1(bridge_slave_0) entered disabled state
[ 55.797386] device bridge_slave_0 entered promiscuous mode
[ 55.808547] bridge0: port 2(bridge_slave_1) entered blocking state
[ 55.815629] bridge0: port 2(bridge_slave_1) entered disabled state
[ 55.827664] device bridge_slave_1 entered promiscuous mode
[ 55.858363] bond0: Enslaving bond_slave_0 as an active interface with an up link
[ 55.872225] bond0: Enslaving bond_slave_1 as an active interface with an up link
[ 55.898709] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 55.910846] team0: Port device team_slave_0 added
[ 55.916844] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 55.929508] team0: Port device team_slave_1 added
[ 55.935077] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 55.947032] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 56.023756] device hsr_slave_0 entered promiscuous mode
[ 56.070473] device hsr_slave_1 entered promiscuous mode
[ 56.110623] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready
[ 56.117784] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready
[ 56.138171] bridge0: port 2(bridge_slave_1) entered blocking state
[ 56.144638] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 56.151307] bridge0: port 1(bridge_slave_0) entered blocking state
[ 56.157658] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 56.202874] 8021q: adding VLAN 0 to HW filter on device bond0
[ 56.217086] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[ 56.229009] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
[ 56.240127] 8021q: adding VLAN 0 to HW filter on device team0
[ 56.277995] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready
[ 56.284197] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
[ 56.303518] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
[ 56.321529] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 56.419467] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
[ 56.425930] 8021q: adding VLAN 0 to HW filter on device team0
[ 56.445028] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[ 56.456897] team0: Port device team_slave_0 added
[ 56.469767] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[ 56.483836] team0: Port device team_slave_1 added
[ 56.493916] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready
[ 56.507095] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready
[ 56.595449] device hsr_slave_0 entered promiscuous mode
[ 161.630037] INFO: rcu_sched self-detected stall on CPU
[ 161.630215] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 161.635605] 1-...: (10500 ticks this GP) idle=b82/140000000000001/0 softirq=11055/11055 fqs=0
[ 161.635611]
[ 161.650228] (t=10501 jiffies g=767 c=766 q=6)
[ 161.651945]
[ 161.656508] rcu_sched kthread starved for 10501 jiffies! g767 c766 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
[ 161.656511] (detected by 0, t=10502 jiffies, g=1268, c=1267, q=156)
[ 161.656517] All QSes seen, last rcu_preempt kthread activity 10502 (4294953459-4294942957), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 161.658215] rcu_sched R
[ 161.668347] syz-executor.4 R running task
[ 161.674784] running task
[ 161.687444] 27000 6941 6899 0x00000000
[ 161.690549] 29832 9 2 0x80000000
[ 161.695220] Call Trace:
[ 161.698500] Call Trace:
[ 161.703265]
[ 161.707510] __schedule+0x780/0x1d20
[ 161.710067] sched_show_task.cold.89+0x2e1/0x342
[ 161.713003] ? pci_mmcfg_check_reserved+0x120/0x120
[ 161.715142] rcu_check_callbacks.cold.77+0xc96/0xcfa
[ 161.719028] ? __lock_is_held+0xb5/0x140
[ 161.719042] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 161.723866] update_process_times+0x2a/0x60
[ 161.729141] schedule+0x7f/0x1b0
[ 161.734239] tick_sched_handle+0x7b/0x140
[ 161.738284] schedule_timeout+0x40c/0xcc0
[ 161.743362] tick_sched_timer+0x34/0xf0
[ 161.748112] ? usleep_range+0x120/0x120
[ 161.751650] ? tick_sched_do_timer+0xc0/0xc0
[ 161.755780] ? prepare_to_swait+0xe5/0x130
[ 161.760012] __hrtimer_run_queues+0x297/0xaf0
[ 161.763970] ? call_timer_fn+0x570/0x570
[ 161.768295] ? lock_downgrade+0x7f0/0x7f0
[ 161.772829] rcu_gp_kthread+0xbbf/0x1e00
[ 161.777252] ? hrtimer_start_range_ns+0x1070/0x1070
[ 161.781861] ? force_qs_rnp+0x4d0/0x4d0
[ 161.785938] ? ktime_get_update_offsets_now+0x141/0x370
[ 161.790057] kthread+0x338/0x400
[ 161.794096] hrtimer_interrupt+0x1ae/0x600
[ 161.799352] ? force_qs_rnp+0x4d0/0x4d0
[ 161.803325] ? __lock_is_held+0xb5/0x140
[ 161.808667] ? kthread_create_on_node+0xa0/0xa0
[ 161.812458] smp_apic_timer_interrupt+0x11f/0x5d0
[ 161.816679] ret_from_fork+0x24/0x30
[ 161.820743] apic_timer_interrupt+0x96/0xa0
[ 161.824936] NMI backtrace for cpu 1
[ 161.829460]
[ 161.829471] RIP: 0010:memset_erms+0x9/0x10
[ 161.829474] RSP: 0018:ffff88807958f5c0 EFLAGS: 00010246 ORIG_RAX: ffffffffffffff10
[ 161.829479] RAX: 0000000000000000 RBX: ffff88807000b000 RCX: 0000000000001000
[ 161.829481] RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88807000b000
[ 161.829483] RBP: ffff88807958f5e0 R08: 0000000000000000 R09: ffff88807000b000
[ 161.829486] R10: ffffed100e0017ff R11: ffff88807000bfff R12: 0000000000001000
[ 161.829488] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000006f36
[ 161.829500] ? memset+0x31/0x40
[ 161.829507] ext4_mpage_readpages+0x6aa/0x13e0
[ 161.829520] ? trace_hardirqs_off+0x10/0x10
[ 161.829525] ? mpage_end_io+0x350/0x350
[ 161.829530] ? __lru_cache_add+0x15c/0x210
[ 161.829536] ? __lock_is_held+0xb5/0x140
[ 161.829547] ext4_readpage+0x126/0x370
[ 161.829554] generic_file_read_iter+0x1074/0x1e40
[ 161.829569] ? filemap_range_has_page+0x1d0/0x1d0
[ 161.829573] ? mark_held_locks+0xc7/0x130
[ 161.829579] ? kfree+0x104/0x270
[ 161.829586] ? __lock_is_held+0xb5/0x140
[ 161.829594] ? trace_hardirqs_on+0xd/0x10
[ 161.829606] ext4_file_read_iter+0x139/0x350
[ 161.829614] generic_file_splice_read+0x349/0x6b0
[ 161.829621] ? add_to_pipe+0x330/0x330
[ 161.829631] ? selinux_file_permission+0x31f/0x3e0
[ 161.834769] CPU: 1 PID: 6936 Comm: syz-executor.1 Not tainted 4.14.172-syzkaller #0
[ 161.838662] ? rw_verify_area+0xb8/0x2b0
[ 161.843310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 161.843317] Call Trace:
[ 161.846943] do_splice_to+0xe3/0x120
[ 161.849166]
[ 161.853390] splice_direct_to_actor+0x20d/0x750
[ 161.861085] dump_stack+0xf7/0x13b
[ 161.870280] ? __inode_security_revalidate+0xd3/0x100
[ 161.877576] nmi_cpu_backtrace.cold.4+0x3e/0x76
[ 161.884949] ? pipe_to_sendpage+0x420/0x420
[ 161.893048] ? irq_force_complete_move.cold.16+0x64/0x64
[ 161.900819] ? do_splice_to+0x120/0x120
[ 161.904288] nmi_trigger_cpumask_backtrace+0xe5/0x119
[ 161.904300] arch_trigger_cpumask_backtrace+0x14/0x20
[ 161.908883] ? rw_verify_area+0xb8/0x2b0
[ 161.913186] rcu_dump_cpu_stacks+0x172/0x1bf
[ 161.917153] do_splice_direct+0x144/0x250
[ 161.921469] ? wake_up_process+0x10/0x20
[ 161.925514] ? splice_direct_to_actor+0x750/0x750
[ 161.929381] rcu_check_callbacks.cold.77+0x415/0xcfa
[ 161.934388] ? __sb_start_write+0x1f3/0x2a0
[ 161.939223] update_process_times+0x2a/0x60
[ 161.943538] do_sendfile+0x463/0xd00
[ 161.946985] tick_sched_handle+0x7b/0x140
[ 161.951037] ? do_compat_pwritev64+0x180/0x180
[ 161.955241] tick_sched_timer+0x34/0xf0
[ 161.959632] ? kasan_check_write+0x14/0x20
[ 161.964883] ? tick_sched_do_timer+0xc0/0xc0
[ 161.968751] SyS_sendfile64+0x97/0x110
[ 161.973665] __hrtimer_run_queues+0x297/0xaf0
[ 161.981757] ? SyS_sendfile+0x120/0x120
[ 161.985809] ? lock_downgrade+0x7f0/0x7f0
[ 161.995342] ? do_syscall_64+0x4c/0x5b0
[ 161.997912] ? hrtimer_start_range_ns+0x1070/0x1070
[ 162.001630] ? SyS_sendfile+0x120/0x120
[ 162.003776] ? ktime_get_update_offsets_now+0x141/0x370
[ 162.008425] do_syscall_64+0x1c7/0x5b0
[ 162.012035] hrtimer_interrupt+0x1ae/0x600
[ 162.017286] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 162.021935] ? __lock_is_held+0xb5/0x140
[ 162.026255] entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 162.031682] smp_apic_timer_interrupt+0x11f/0x5d0
[ 162.035637] RIP: 0033:0x459519
[ 162.040819] apic_timer_interrupt+0x96/0xa0
[ 162.046004] RSP: 002b:00007fb70abb7c78 EFLAGS: 00000246
[ 162.050061]
[ 162.054456] ORIG_RAX: 0000000000000028
[ 162.058593] RIP: 0010:update_stack_state+0x19/0x5d0
[ 162.062623] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459519
[ 162.062627] RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003
[ 162.067455] RSP: 0018:ffff88808a7ef4d8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10
[ 162.072579] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
[ 162.076902] RAX: dffffc0000000000 RBX: ffff88808a7ef5e0 RCX: ffff88808a7ef638
[ 162.081207] R10: 00008080fffffffe R11: 0000000000000246 R12: 00007fb70abb86d4
[ 162.084919] RDX: dffffc0000000000 RSI: ffff88808a7efc50 RDI: ffff88808a7ef5e0
[ 162.084925] RBP: ffff88808a7ef4f8 R08: 1ffff110114fdec6 R09: ffff88808a7ef590
[ 162.089063] R13: 00000000004c6af0 R14: 00000000004dbd68 R15: 00000000ffffffff
[ 162.093626] R10: ffff88808a7ef618 R11: ffff88808a7ef63f R12: 1ffff110114fdea6
[ 162.093631] R13: 0000000000000000 R14: ffff88808a7ef5e0 R15: ffff88808a7efc50
[ 162.097604] rcu_preempt kthread starved for 10502 jiffies! g1268 c1267 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
[ 162.101856] unwind_next_frame.part.8+0x1a3/0xa10
[ 162.106253] rcu_preempt R
[ 162.110123] ? unwind_dump+0xf0/0xf0
[ 162.114591] running task 29720 8 2 0x80000000
[ 162.118553] ? unwind_dump+0xf0/0xf0
[ 162.122674] Call Trace:
[ 162.126635] ? __unwind_start+0x1f6/0x410
[ 162.131632] __schedule+0x780/0x1d20
[ 162.135580] unwind_next_frame+0x3e/0x50
[ 162.140932] ? pci_mmcfg_check_reserved+0x120/0x120
[ 162.144805] __save_stack_trace+0x6e/0xd0
[ 162.149067] ? __lock_is_held+0xb5/0x140
[ 162.153889] ? splice_direct_to_actor+0x27c/0x750
[ 162.157929] ? _raw_spin_unlock_irqrestore+0x82/0xd0
[ 162.163111] save_stack_trace+0x16/0x20
[ 162.167935] schedule+0x7f/0x1b0
[ 162.171103] save_stack+0x43/0xd0
[ 162.175401] schedule_timeout+0x40c/0xcc0
[ 162.180744] ? save_stack_trace+0x16/0x20
[ 162.182974] ? usleep_range+0x120/0x120
[ 162.186941] ? save_stack+0x43/0xd0
[ 162.191962] ? prepare_to_swait+0xe5/0x130
[ 162.199213] ? kasan_kmalloc+0xc7/0xe0
[ 162.206559] ? call_timer_fn+0x570/0x570
[ 162.214273] ? __kmalloc+0x15b/0x7b0
[ 162.221569] rcu_gp_kthread+0xbbf/0x1e00
[ 162.228809] ? iter_file_splice_write+0x126/0xc20
[ 162.236078] ? force_qs_rnp+0x4d0/0x4d0
[ 162.243334] ? direct_splice_actor+0x104/0x1c0
[ 162.250698] kthread+0x338/0x400
[ 162.257990] ? splice_direct_to_actor+0x27c/0x750
[ 162.265287] ? force_qs_rnp+0x4d0/0x4d0
[ 162.272585] ? do_sendfile+0x463/0xd00
[ 162.283093] ? kthread_create_on_node+0xa0/0xa0
[ 162.287924] ? SyS_sendfile64+0x97/0x110
[ 162.291012] ret_from_fork+0x24/0x30
[ 162.294723] ? do_syscall_64+0x1c7/0x5b0
[ 162.294735] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 162.441188] ? trace_hardirqs_on+0x10/0x10
[ 162.445414] ? touch_atime+0xc1/0x230
[ 162.449204] ? trace_hardirqs_off+0x10/0x10
[ 162.453502] ? trace_hardirqs_off+0x10/0x10
[ 162.457805] ? __lock_is_held+0xb5/0x140
[ 162.461847] ? kasan_unpoison_shadow+0x35/0x50
[ 162.466418] kasan_kmalloc+0xc7/0xe0
[ 162.470116] __kmalloc+0x15b/0x7b0
[ 162.473633] ? iter_file_splice_write+0x126/0xc20
[ 162.478452] iter_file_splice_write+0x126/0xc20
[ 162.483099] ? generic_file_splice_read+0x43f/0x6b0
[ 162.488095] ? default_file_splice_read+0x820/0x820
[ 162.493095] ? selinux_file_permission+0x31f/0x3e0
[ 162.498007] ? rw_verify_area+0xb8/0x2b0
[ 162.502046] direct_splice_actor+0x104/0x1c0
[ 162.506471] splice_direct_to_actor+0x27c/0x750
[ 162.511196] ? __inode_security_revalidate+0xd3/0x100
[ 162.516551] ? pipe_to_sendpage+0x420/0x420
[ 162.520876] ? do_splice_to+0x120/0x120
[ 162.525787] ? rw_verify_area+0xb8/0x2b0
[ 162.529862] do_splice_direct+0x144/0x250
[ 162.534010] ? splice_direct_to_actor+0x750/0x750
[ 162.538834] ? __sb_start_write+0x1f3/0x2a0
[ 162.543137] do_sendfile+0x463/0xd00
[ 162.546845] ? do_compat_pwritev64+0x180/0x180
[ 162.551418] ? kasan_check_write+0x14/0x20
[ 162.555631] SyS_sendfile64+0x97/0x110
[ 162.559494] ? SyS_sendfile+0x120/0x120
[ 162.563444] ? do_syscall_64+0x4c/0x5b0
[ 162.567477] ? SyS_sendfile+0x120/0x120
[ 162.571635] do_syscall_64+0x1c7/0x5b0
[ 162.575518] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 162.580353] entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 162.585547] RIP: 0033:0x459519
[ 162.588733] RSP: 002b:00007f32b32e0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
[ 162.596420] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459519
[ 162.603668] RDX: 0000000020000000 RSI: 0000000000000003 RDI: 0000000000000003
[ 162.610936] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
[ 162.618190] R10: 00008080fffffffe R11: 0000000000000246 R12: 00007f32b32e16d4
[ 162.625454] R13: 00000000004c6af0 R14: 00000000004dbd68 R15: 00000000ffffffff