Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. 2019/04/23 05:57:41 parsed 1 programs 2019/04/23 05:57:43 executed programs: 0 [ 127.696346] audit: type=1400 audit(1555999065.477:5): avc: denied { associate } for pid=2116 comm="syz-executor.3" name="syz3" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 127.970044] hrtimer: interrupt took 62263 ns [ 128.813858] sched: RT throttling activated for rt_rq 00000000ddd2b4a1 (cpu 0) [ 128.813858] potential CPU hogs: [ 128.813858] syz-executor.3 (2987) 2019/04/23 05:57:50 executed programs: 6 2019/04/23 05:57:56 executed programs: 14 2019/04/23 05:58:01 executed programs: 21 2019/04/23 05:58:08 executed programs: 28 2019/04/23 05:58:13 executed programs: 34 2019/04/23 05:58:18 executed programs: 39 [ 272.793838] INFO: rcu_preempt detected stalls on CPUs/tasks: [ 272.799923] (detected by 0, t=10502 jiffies, g=570, c=569, q=90) [ 272.806313] All QSes seen, last rcu_preempt kthread activity 10499 (4294964452-4294953953), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 272.818536] syz-executor.2 R running task 26504 3212 2112 0x00000000 [ 272.826014] ffff8801db607cc8 ffffffff813fcbf1 ffffffff813fc9f0 0000000000002903 [ 272.834081] 00000000ffffcbe1 00000000fffff4e4 dffffc0000000000 ffff8801db621c80 [ 272.842182] ffffffff830d5980 ffff8801db607d98 ffffffff81408e6c 0000000000000000 [ 272.850281] Call Trace: [ 272.852854] [ 272.854926] [<0000000089bc4351>] sched_show_task.cold+0x27f/0x327 [ 272.861305] [<000000005b44dea2>] ? sched_show_task.cold+0x7e/0x327 [ 272.867721] [<000000000ca14c79>] rcu_check_callbacks.cold+0xcd6/0xd2f [ 272.874388] [<00000000aef91a0d>] update_process_times+0x31/0x70 [ 272.880538] [<0000000060854cba>] tick_sched_handle.isra.0+0x4a/0xf0 [ 272.887038] [<00000000e690576e>] tick_sched_timer+0x7a/0x130 [ 272.892958] [<000000006527b099>] ? tick_sched_handle.isra.0+0xf0/0xf0 [ 272.899739] [<0000000088d9e626>] __hrtimer_run_queues+0x313/0xe00 [ 272.906063] [<00000000a3ef6a15>] ? hrtimer_fixup_init+0x70/0x70 [ 272.912209] [<00000000e46fe25a>] ? kvm_clock_get_cycles+0x9/0x10 [ 272.918448] [<000000000d6fb523>] ? hrtimer_interrupt+0x121/0x450 [ 272.924685] [<00000000743fa032>] hrtimer_interrupt+0x1b6/0x450 [ 272.930749] [<00000000f16888de>] local_apic_timer_interrupt+0x76/0xa0 [ 272.937457] [<0000000087370bb6>] smp_apic_timer_interrupt+0x79/0xb0 [ 272.943973] [<0000000042a7829a>] apic_timer_interrupt+0x9d/0xb0 [ 272.950108] [ 272.952169] [<0000000012335029>] ? lock_acquire+0x176/0x3d0 [ 272.957994] [<00000000b492c4d4>] ? ext4_mark_iloc_dirty+0x1d1/0x2850 [ 272.964576] [<00000000ddee93f9>] _raw_spin_lock+0x38/0x50 [ 272.970202] [<00000000b492c4d4>] ? ext4_mark_iloc_dirty+0x1d1/0x2850 [ 272.976795] [<00000000b492c4d4>] ext4_mark_iloc_dirty+0x1d1/0x2850 [ 272.983211] [<00000000d86b4afb>] ? ext4_chunk_trans_blocks+0x30/0x30 [ 272.989804] [<000000006bc38f11>] ? __ext4_journal_get_write_access+0x59/0x90 [ 272.997097] [<00000000261e215c>] ext4_mark_inode_dirty+0x3db/0xb30 [ 273.003511] [<000000000ab42775>] ? ext4_reserve_inode_write+0x180/0x180 [ 273.010365] [<00000000c9d239cd>] ? ext4_journal_check_start+0x116/0x1a0 [ 273.017293] [<00000000f257dca9>] ? __ext4_journal_start_sb+0x114/0x480 [ 273.024045] [<0000000087c10fbd>] ext4_dirty_inode+0x73/0xa0 [ 273.029843] [<000000003814bb97>] ? ext4_setattr+0x21b0/0x21b0 [ 273.035834] [<000000001485eb38>] __mark_inode_dirty+0x10e/0x10a0 [ 273.042064] [<00000000c38dd658>] ? block_write_end+0x4d/0x100 [ 273.048038] [<00000000f1fbc14a>] generic_write_end+0x195/0x260 [ 273.054098] [<000000004fe3a8a6>] ext4_da_write_end+0x461/0xc20 [ 273.060163] [<00000000960403a2>] generic_perform_write+0x2fa/0x500 [ 273.066567] [<00000000aaad9f27>] ? filemap_page_mkwrite+0x280/0x280 [ 273.073062] [<00000000b5c392a4>] ? current_time+0xd0/0xd0 [ 273.078686] [<000000009db89091>] __generic_file_write_iter+0x340/0x530 [ 273.085443] [<0000000072fd8414>] ? generic_write_checks+0x245/0x410 [ 273.091939] [<00000000e05d7fa8>] ext4_file_write_iter+0x66e/0xdd0 [ 273.098455] [<00000000834eef08>] ? do_sendfile+0x503/0xc00 [ 273.104162] [<00000000e8b6f267>] ? SyS_sendfile64+0x145/0x160 [ 273.110131] [<000000000e528bc4>] ? do_syscall_64+0x1ad/0x570 [ 273.116024] [<0000000084d38d86>] ? entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 273.123128] [<00000000f589f2fb>] ? ext4_llseek+0x8e0/0x8e0 [ 273.128834] [<0000000074c42cca>] ? retint_kernel+0x2d/0x2d [ 273.134544] [<00000000e2284808>] ? trace_hardirqs_on_caller+0x385/0x5a0 [ 273.141382] [<000000000ec161db>] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 273.147963] [<000000005fb2c83b>] ? check_preemption_disabled+0x3c/0x200 [ 273.154802] [<0000000074c42cca>] ? retint_kernel+0x2d/0x2d [ 273.160510] [<000000002aa19711>] vfs_iter_write+0x2e2/0x580 [ 273.166315] [<000000007376c1c9>] ? do_iter_readv_writev+0x4b0/0x4b0 [ 273.172814] [<0000000045d8bd36>] ? memset_erms+0xb/0x10 [ 273.178296] [<00000000f62d6a72>] ? splice_from_pipe_next.part.0+0x1e9/0x290 [ 273.186976] [<00000000fbb603bb>] ? __kmalloc+0x133/0x320 [ 273.192517] [<00000000dcdca8dd>] iter_file_splice_write+0x5a9/0xb10 [ 273.199014] [<00000000d004ad22>] ? __atime_needs_update+0x950/0x950 [ 273.205521] [<00000000f93f7869>] ? vmsplice_to_user+0x1e0/0x1e0 [ 273.211669] [<00000000f7a14946>] ? avc_policy_seqno+0x9/0x20 [ 273.217554] [<00000000daef92e6>] ? selinux_file_permission+0x85/0x470 [ 273.224225] [<00000000682b9886>] ? security_file_permission+0x8f/0x1f0 [ 273.230990] [<0000000088d97f37>] ? rw_verify_area+0xea/0x2b0 [ 273.236879] [<00000000f93f7869>] ? vmsplice_to_user+0x1e0/0x1e0 [ 273.243025] [<00000000a362389d>] direct_splice_actor+0x126/0x1a0 [ 273.249269] [<000000005eed3f39>] splice_direct_to_actor+0x2c8/0x820 [ 273.255764] [<000000005715ddda>] ? generic_pipe_buf_nosteal+0x10/0x10 [ 273.262435] [<00000000e79be404>] ? do_splice_to+0x170/0x170 [ 273.268245] [<00000000682b9886>] ? security_file_permission+0x8f/0x1f0 [ 273.275279] [<0000000088d97f37>] ? rw_verify_area+0xea/0x2b0 [ 273.281179] [<000000009878c073>] do_splice_direct+0x1a5/0x260 [ 273.287255] [<000000002b2c6850>] ? splice_direct_to_actor+0x820/0x820 [ 273.293926] [<00000000250bfa38>] ? rcu_read_lock_sched_held+0x10b/0x130 [ 273.300874] [<0000000071e031bc>] ? rcu_sync_lockdep_assert+0x73/0xb0 [ 273.307453] [<000000002a8e9d2f>] ? __sb_start_write+0x161/0x310 [ 273.313600] [<00000000834eef08>] do_sendfile+0x503/0xc00 [ 273.319223] [<000000007ea65b44>] ? do_compat_pwritev64+0x180/0x180 [ 273.325638] [<000000004949f4b0>] ? __might_fault+0x114/0x1d0 [ 273.331532] [<00000000e8b6f267>] SyS_sendfile64+0x145/0x160 [ 273.337328] [<0000000031d95a54>] ? SyS_sendfile+0x160/0x160 [ 273.343127] [<000000000ba73d20>] ? do_syscall_64+0x4a/0x570 [ 273.348920] [<0000000031d95a54>] ? SyS_sendfile+0x160/0x160 [ 273.354731] [<000000000e528bc4>] do_syscall_64+0x1ad/0x570 [ 273.360441] [<0000000084d38d86>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 273.367401] rcu_preempt kthread starved for 10555 jiffies! g570 c569 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 [ 273.377015] rcu_preempt R running task 28856 7 2 0x80000000 [ 273.384492] ffff8801da6817c0 ffff8801d1a2c780 ffff8801db721000 ffff8801cc93df00 [ 273.392575] ffff8801db721018 ffff8801da697a70 ffffffff8280185e ffff8801da6817c0 [ 273.400649] ffff8801da6979b8 00ffffff812445d1 ffff8801db7218f0 1ffff1003b4d2f3d [ 273.408708] Call Trace: [ 273.411295] [<0000000012320cd3>] ? __schedule+0x6ce/0x1f10 [ 273.417008] [<000000009f32e177>] ? io_schedule_timeout+0x390/0x390 [ 273.423415] [<000000005fb2c83b>] ? check_preemption_disabled+0x3c/0x200 [ 273.430274] [<000000009f8a1272>] ? _raw_spin_unlock_irqrestore+0x5a/0x70 [ 273.437204] [<00000000781472c1>] schedule+0x92/0x1c0 [ 273.442399] [<000000001fb81289>] schedule_timeout+0x513/0xe50 [ 273.448373] [<0000000095010711>] ? usleep_range+0x140/0x140 [ 273.454169] [<00000000291c37a2>] ? del_timer_sync+0x140/0x140 [ 273.460138] [<0000000093c2983c>] rcu_gp_kthread+0xba5/0x20e0 [ 273.466046] [<000000000ff0a7bc>] ? force_qs_rnp+0x460/0x460 [ 273.471840] [<000000009f32e177>] ? io_schedule_timeout+0x390/0x390 [ 273.478248] [<000000003cf2dc6e>] ? __kthread_parkme+0x173/0x240 [ 273.484393] [<000000000ff0a7bc>] ? force_qs_rnp+0x460/0x460 [ 273.490186] [<000000004a8d5e78>] kthread+0x278/0x310 [ 273.495378] [<000000001cdb9ffb>] ? kthread_park+0xa0/0xa0 [ 273.501000] [<0000000007daa824>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 273.507771] [<00000000848df71d>] ? _raw_spin_unlock_irq+0x39/0x60 [ 273.514091] [<00000000f7887464>] ? finish_task_switch+0x1e5/0x660 [ 273.520410] [<000000002f4d373c>] ? finish_task_switch+0x1b7/0x660 [ 273.526728] [<00000000bdde3512>] ? __switch_to_asm+0x34/0x70 [ 273.532611] [<0000000092a12f0e>] ? __switch_to_asm+0x40/0x70 [ 273.538493] [<00000000bdde3512>] ? __switch_to_asm+0x34/0x70 [ 273.544378] [<000000001cdb9ffb>] ? kthread_park+0xa0/0xa0 [ 273.550004] [<000000001cdb9ffb>] ? kthread_park+0xa0/0xa0 [ 273.555628] [<00000000aa4b7d82>] ret_from_fork+0x5c/0x70