INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "2" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "5" respawning too fast: disabled for 5 minutes [ 974.085996] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.255' (ECDSA) to the list of known hosts. [ 979.508663] random: sshd: uninitialized urandom read (32 bytes read) [ 979.598260] audit: type=1400 audit(1552161450.529:7): avc: denied { map } for pid=1946 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/03/09 19:57:31 parsed 1 programs [ 980.426227] audit: type=1400 audit(1552161451.359:8): avc: denied { map } for pid=1946 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=5005 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 981.131575] random: cc1: uninitialized urandom read (8 bytes read) 2019/03/09 19:57:33 executed programs: 0 [ 982.885330] audit: type=1400 audit(1552161453.819:9): avc: denied { map } for pid=1946 comm="syz-execprog" path="/root/syzkaller-shm673589165" 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 [ 1144.790213] INFO: task syz-executor.2:1962 blocked for more than 140 seconds. [ 1144.797672] Not tainted 4.14.105+ #29 [ 1144.802535] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.810546] syz-executor.2 D25144 1962 1 0x00000004 [ 1144.816367] Call Trace: [ 1144.819128] ? __schedule+0x91c/0x1f30 [ 1144.823326] ? __sched_text_start+0x8/0x8 [ 1144.827476] ? lock_downgrade+0x5d0/0x5d0 [ 1144.831817] ? lock_acquire+0x10f/0x380 [ 1144.835835] ? __mutex_lock+0x64b/0x1430 [ 1144.839964] schedule+0x92/0x1c0 [ 1144.843526] schedule_preempt_disabled+0x13/0x20 [ 1144.848303] __mutex_lock+0x559/0x1430 [ 1144.852264] ? lo_ioctl+0x83/0x1970 [ 1144.855882] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1144.861480] ? lock_downgrade+0x5d0/0x5d0 [ 1144.865640] ? lock_acquire+0x10f/0x380 [ 1144.869611] ? check_preemption_disabled+0x35/0x1f0 [ 1144.874880] ? avc_has_extended_perms+0x706/0xc20 [ 1144.879730] ? lo_ioctl+0x83/0x1970 [ 1144.883399] lo_ioctl+0x83/0x1970 [ 1144.886955] ? kasan_slab_free+0xb0/0x190 [ 1144.891207] ? kmem_cache_free+0xc4/0x330 [ 1144.895345] ? putname+0xcd/0x110 [ 1144.898779] ? do_sys_open+0x250/0x590 [ 1144.902718] ? do_syscall_64+0x19b/0x4b0 [ 1144.906773] ? loop_clr_fd+0xac0/0xac0 [ 1144.910704] blkdev_ioctl+0x4d9/0x1810 [ 1144.914577] ? blkpg_ioctl+0x910/0x910 [ 1144.918444] ? lock_downgrade+0x5d0/0x5d0 [ 1144.922619] ? lock_acquire+0x10f/0x380 [ 1144.926577] ? debug_check_no_obj_freed+0x148/0x5c0 [ 1144.931758] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1144.936871] ? trace_hardirqs_on_caller+0x37b/0x540 [ 1144.941970] block_ioctl+0xd9/0x120 [ 1144.945581] ? blkdev_fallocate+0x3b0/0x3b0 [ 1144.949887] do_vfs_ioctl+0xabe/0x1040 [ 1144.953955] ? selinux_file_ioctl+0x426/0x590 [ 1144.958453] ? selinux_file_ioctl+0x116/0x590 [ 1144.963045] ? ioctl_preallocate+0x1e0/0x1e0 [ 1144.967460] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 1144.973174] ? rcu_read_lock_sched_held+0x10a/0x130 [ 1144.978413] ? putname+0xcd/0x110 [ 1144.982014] ? do_sys_open+0x255/0x590 [ 1144.985946] ? filp_open+0x60/0x60 [ 1144.989475] ? security_file_ioctl+0x7c/0xb0 [ 1144.994111] SyS_ioctl+0x7f/0xb0 [ 1144.997472] ? do_vfs_ioctl+0x1040/0x1040 [ 1145.001705] do_syscall_64+0x19b/0x4b0 [ 1145.005644] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.011116] INFO: task syz-executor.4:1970 blocked for more than 140 seconds. [ 1145.018530] Not tainted 4.14.105+ #29 [ 1145.023068] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.031069] syz-executor.4 D25640 1970 1 0x00000004 [ 1145.036698] Call Trace: [ 1145.039301] ? __schedule+0x91c/0x1f30 [ 1145.043349] ? __sched_text_start+0x8/0x8 [ 1145.047516] ? lock_downgrade+0x5d0/0x5d0 [ 1145.051724] ? lock_acquire+0x10f/0x380 [ 1145.055688] ? __mutex_lock+0x2c1/0x1430 [ 1145.059795] schedule+0x92/0x1c0 [ 1145.063252] schedule_preempt_disabled+0x13/0x20 [ 1145.068087] __mutex_lock+0x559/0x1430 [ 1145.072048] ? __mutex_lock+0x6aa/0x1430 [ 1145.076101] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1145.080980] ? lo_open+0x19/0xb0 [ 1145.084336] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.089790] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.095342] ? kobject_get_unless_zero+0x27/0x40 [ 1145.100129] ? lock_downgrade+0x5d0/0x5d0 [ 1145.104350] ? refcount_inc_not_zero+0x81/0xe0 [ 1145.109048] ? check_preemption_disabled+0x35/0x1f0 [ 1145.114246] ? loop_unregister_transfer+0x90/0x90 [ 1145.119091] ? lo_open+0x19/0xb0 [ 1145.122535] lo_open+0x19/0xb0 [ 1145.125838] __blkdev_get+0x267/0xf90 [ 1145.130197] ? __blkdev_put+0x6d0/0x6d0 [ 1145.134179] ? fsnotify+0x8b0/0x1150 [ 1145.137878] blkdev_get+0x97/0x8b0 [ 1145.141465] ? bd_acquire+0x171/0x2c0 [ 1145.145258] ? bd_may_claim+0xd0/0xd0 [ 1145.149145] ? lock_downgrade+0x5d0/0x5d0 [ 1145.153396] ? lock_acquire+0x10f/0x380 [ 1145.157369] ? bd_acquire+0x21/0x2c0 [ 1145.161136] blkdev_open+0x1cc/0x250 [ 1145.164857] ? security_file_open+0x88/0x190 [ 1145.169265] do_dentry_open+0x41b/0xd60 [ 1145.173324] ? bd_acquire+0x2c0/0x2c0 [ 1145.177124] vfs_open+0x105/0x230 [ 1145.180741] path_openat+0xb6b/0x2b70 [ 1145.184550] ? path_mountpoint+0x9a0/0x9a0 [ 1145.188774] ? trace_hardirqs_on+0x10/0x10 [ 1145.193099] do_filp_open+0x1a1/0x280 [ 1145.196893] ? may_open_dev+0xe0/0xe0 [ 1145.200733] ? lock_downgrade+0x5d0/0x5d0 [ 1145.204870] ? lock_acquire+0x10f/0x380 [ 1145.208907] ? __alloc_fd+0x3f/0x490 [ 1145.212764] ? _raw_spin_unlock+0x29/0x40 [ 1145.216922] ? __alloc_fd+0x1bf/0x490 [ 1145.220787] do_sys_open+0x2ca/0x590 [ 1145.224496] ? filp_open+0x60/0x60 [ 1145.228042] ? SyS_mkdirat+0x146/0x220 [ 1145.231995] ? _raw_spin_unlock_irq+0x35/0x50 [ 1145.236500] ? do_syscall_64+0x43/0x4b0 [ 1145.240511] ? do_sys_open+0x590/0x590 [ 1145.244386] do_syscall_64+0x19b/0x4b0 [ 1145.248273] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.253728] INFO: task syz-executor.5:1972 blocked for more than 140 seconds. [ 1145.261044] Not tainted 4.14.105+ #29 [ 1145.265448] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.273608] syz-executor.5 D25640 1972 1 0x00000004 [ 1145.279377] Call Trace: [ 1145.282066] ? __schedule+0x91c/0x1f30 [ 1145.286020] ? __sched_text_start+0x8/0x8 [ 1145.290235] ? lock_downgrade+0x5d0/0x5d0 [ 1145.294381] ? lock_acquire+0x10f/0x380 [ 1145.298345] ? __mutex_lock+0x2c1/0x1430 [ 1145.302473] schedule+0x92/0x1c0 [ 1145.305840] schedule_preempt_disabled+0x13/0x20 [ 1145.310726] __mutex_lock+0x559/0x1430 [ 1145.314627] ? __mutex_lock+0x6aa/0x1430 [ 1145.318685] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1145.323613] ? lo_open+0x19/0xb0 [ 1145.327090] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.333161] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.338616] ? kobject_get_unless_zero+0x27/0x40 [ 1145.343439] ? lock_downgrade+0x5d0/0x5d0 [ 1145.347579] ? refcount_inc_not_zero+0x81/0xe0 [ 1145.352250] ? check_preemption_disabled+0x35/0x1f0 [ 1145.357283] ? loop_unregister_transfer+0x90/0x90 [ 1145.362164] ? lo_open+0x19/0xb0 [ 1145.365515] lo_open+0x19/0xb0 [ 1145.368687] __blkdev_get+0x267/0xf90 [ 1145.372694] ? __blkdev_put+0x6d0/0x6d0 [ 1145.376676] ? fsnotify+0x8b0/0x1150 [ 1145.380449] blkdev_get+0x97/0x8b0 [ 1145.383984] ? bd_acquire+0x171/0x2c0 [ 1145.387773] ? bd_may_claim+0xd0/0xd0 [ 1145.391608] ? lock_downgrade+0x5d0/0x5d0 [ 1145.395760] ? lock_acquire+0x10f/0x380 [ 1145.399734] ? bd_acquire+0x21/0x2c0 [ 1145.403540] blkdev_open+0x1cc/0x250 [ 1145.407250] ? security_file_open+0x88/0x190 [ 1145.411874] do_dentry_open+0x41b/0xd60 [ 1145.415848] ? bd_acquire+0x2c0/0x2c0 [ 1145.419708] vfs_open+0x105/0x230 [ 1145.423255] path_openat+0xb6b/0x2b70 [ 1145.427065] ? path_mountpoint+0x9a0/0x9a0 [ 1145.431363] ? trace_hardirqs_on+0x10/0x10 [ 1145.435595] do_filp_open+0x1a1/0x280 [ 1145.439509] ? may_open_dev+0xe0/0xe0 [ 1145.443402] ? lock_downgrade+0x5d0/0x5d0 [ 1145.447661] ? lock_acquire+0x10f/0x380 [ 1145.451928] ? __alloc_fd+0x3f/0x490 [ 1145.455648] ? _raw_spin_unlock+0x29/0x40 [ 1145.459778] ? __alloc_fd+0x1bf/0x490 [ 1145.463637] do_sys_open+0x2ca/0x590 [ 1145.467343] ? filp_open+0x60/0x60 [ 1145.470917] ? SyS_mkdirat+0x146/0x220 [ 1145.474794] ? _raw_spin_unlock_irq+0x35/0x50 [ 1145.479272] ? do_syscall_64+0x43/0x4b0 [ 1145.483273] ? do_sys_open+0x590/0x590 [ 1145.487168] do_syscall_64+0x19b/0x4b0 [ 1145.491152] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.496631] INFO: task syz-executor.0:1975 blocked for more than 140 seconds. [ 1145.503979] Not tainted 4.14.105+ #29 [ 1145.508446] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.516593] syz-executor.0 D25640 1975 1 0x00000004 [ 1145.522267] Call Trace: [ 1145.524847] ? __schedule+0x91c/0x1f30 [ 1145.528719] ? __sched_text_start+0x8/0x8 [ 1145.532901] ? lock_downgrade+0x5d0/0x5d0 [ 1145.537108] ? lock_acquire+0x10f/0x380 [ 1145.541170] ? __mutex_lock+0x2c1/0x1430 [ 1145.545235] schedule+0x92/0x1c0 [ 1145.548586] schedule_preempt_disabled+0x13/0x20 [ 1145.553393] __mutex_lock+0x559/0x1430 [ 1145.557285] ? __mutex_lock+0x6aa/0x1430 [ 1145.561441] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1145.566511] ? lo_open+0x19/0xb0 [ 1145.569888] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.575493] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.581061] ? kobject_get_unless_zero+0x27/0x40 [ 1145.585817] ? get_disk+0xd0/0xd0 [ 1145.589253] ? exact_match+0x9/0x20 [ 1145.592940] ? blkdev_ioctl+0x1810/0x1810 [ 1145.597156] ? loop_unregister_transfer+0x90/0x90 [ 1145.602091] ? lo_open+0x19/0xb0 [ 1145.605519] lo_open+0x19/0xb0 [ 1145.608947] __blkdev_get+0x963/0xf90 [ 1145.612880] ? __blkdev_put+0x6d0/0x6d0 [ 1145.616880] ? fsnotify+0x8b0/0x1150 [ 1145.620664] blkdev_get+0x97/0x8b0 [ 1145.624275] ? bd_acquire+0x171/0x2c0 [ 1145.628069] ? bd_may_claim+0xd0/0xd0 [ 1145.631974] ? lock_downgrade+0x5d0/0x5d0 [ 1145.636305] ? lock_acquire+0x10f/0x380 [ 1145.640372] ? bd_acquire+0x21/0x2c0 [ 1145.644160] blkdev_open+0x1cc/0x250 [ 1145.647947] ? security_file_open+0x88/0x190 [ 1145.652417] do_dentry_open+0x41b/0xd60 [ 1145.656400] ? bd_acquire+0x2c0/0x2c0 [ 1145.660337] vfs_open+0x105/0x230 [ 1145.663888] path_openat+0xb6b/0x2b70 [ 1145.667693] ? path_mountpoint+0x9a0/0x9a0 [ 1145.672121] ? trace_hardirqs_on+0x10/0x10 [ 1145.676560] do_filp_open+0x1a1/0x280 [ 1145.680440] ? may_open_dev+0xe0/0xe0 [ 1145.684304] ? lock_downgrade+0x5d0/0x5d0 [ 1145.688441] ? lock_acquire+0x10f/0x380 [ 1145.692520] ? __alloc_fd+0x3f/0x490 [ 1145.696245] ? _raw_spin_unlock+0x29/0x40 [ 1145.700537] ? __alloc_fd+0x1bf/0x490 [ 1145.704404] do_sys_open+0x2ca/0x590 [ 1145.708206] ? filp_open+0x60/0x60 [ 1145.711824] ? SyS_mkdirat+0x146/0x220 [ 1145.715776] ? _raw_spin_unlock_irq+0x35/0x50 [ 1145.720392] ? do_syscall_64+0x43/0x4b0 [ 1145.724372] ? do_sys_open+0x590/0x590 [ 1145.728246] do_syscall_64+0x19b/0x4b0 [ 1145.732190] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.737648] INFO: task syz-executor.1:1978 blocked for more than 140 seconds. [ 1145.745010] Not tainted 4.14.105+ #29 [ 1145.749446] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1145.757489] syz-executor.1 D25560 1978 1 0x00000004 [ 1145.763244] Call Trace: [ 1145.765824] ? __schedule+0x91c/0x1f30 [ 1145.769695] ? __sched_text_start+0x8/0x8 [ 1145.773878] ? lock_downgrade+0x5d0/0x5d0 [ 1145.778114] ? lock_acquire+0x10f/0x380 [ 1145.782133] ? __mutex_lock+0x2c1/0x1430 [ 1145.786297] schedule+0x92/0x1c0 [ 1145.789666] schedule_preempt_disabled+0x13/0x20 [ 1145.794526] __mutex_lock+0x559/0x1430 [ 1145.798506] ? __mutex_lock+0x6aa/0x1430 [ 1145.802802] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1145.807642] ? lo_open+0x19/0xb0 [ 1145.811360] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.816826] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1145.822342] ? kobject_get_unless_zero+0x27/0x40 [ 1145.827388] ? lock_downgrade+0x5d0/0x5d0 [ 1145.831966] ? refcount_inc_not_zero+0x81/0xe0 [ 1145.836659] ? check_preemption_disabled+0x35/0x1f0 [ 1145.841860] ? loop_unregister_transfer+0x90/0x90 [ 1145.846710] ? lo_open+0x19/0xb0 [ 1145.850135] lo_open+0x19/0xb0 [ 1145.853330] __blkdev_get+0x267/0xf90 [ 1145.857303] ? __blkdev_put+0x6d0/0x6d0 [ 1145.861432] ? fsnotify+0x8b0/0x1150 [ 1145.865154] blkdev_get+0x97/0x8b0 [ 1145.868679] ? bd_acquire+0x171/0x2c0 [ 1145.872529] ? bd_may_claim+0xd0/0xd0 [ 1145.876327] ? lock_downgrade+0x5d0/0x5d0 [ 1145.880553] ? lock_acquire+0x10f/0x380 [ 1145.884536] ? bd_acquire+0x21/0x2c0 [ 1145.888248] blkdev_open+0x1cc/0x250 [ 1145.892054] ? security_file_open+0x88/0x190 [ 1145.896470] do_dentry_open+0x41b/0xd60 [ 1145.900497] ? bd_acquire+0x2c0/0x2c0 [ 1145.904295] vfs_open+0x105/0x230 [ 1145.907731] path_openat+0xb6b/0x2b70 [ 1145.911618] ? path_mountpoint+0x9a0/0x9a0 [ 1145.915864] ? trace_hardirqs_on+0x10/0x10 [ 1145.920165] do_filp_open+0x1a1/0x280 [ 1145.923969] ? may_open_dev+0xe0/0xe0 [ 1145.927757] ? lock_downgrade+0x5d0/0x5d0 [ 1145.932075] ? lock_acquire+0x10f/0x380 [ 1145.936067] ? __alloc_fd+0x3f/0x490 [ 1145.939771] ? _raw_spin_unlock+0x29/0x40 [ 1145.943977] ? __alloc_fd+0x1bf/0x490 [ 1145.947904] do_sys_open+0x2ca/0x590 [ 1145.951833] ? filp_open+0x60/0x60 [ 1145.955491] ? SyS_mkdirat+0x146/0x220 [ 1145.959440] ? _raw_spin_unlock_irq+0x35/0x50 [ 1145.964030] ? do_syscall_64+0x43/0x4b0 [ 1145.968134] ? do_sys_open+0x590/0x590 [ 1145.972111] do_syscall_64+0x19b/0x4b0 [ 1145.976002] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1145.981443] INFO: task syz-executor.3:3042 blocked for more than 140 seconds. [ 1145.988772] Not tainted 4.14.105+ #29 [ 1145.993162] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.001307] syz-executor.3 D28688 3042 1968 0x00000004 [ 1146.006977] Call Trace: [ 1146.009572] ? __schedule+0x91c/0x1f30 [ 1146.013542] ? __sched_text_start+0x8/0x8 [ 1146.017878] ? lock_downgrade+0x5d0/0x5d0 [ 1146.022220] ? lock_acquire+0x10f/0x380 [ 1146.026295] ? __mutex_lock+0x2c1/0x1430 [ 1146.030575] schedule+0x92/0x1c0 [ 1146.033941] schedule_preempt_disabled+0x13/0x20 [ 1146.038708] __mutex_lock+0x559/0x1430 [ 1146.042687] ? blkdev_reread_part+0x1b/0x40 [ 1146.047322] ? mark_lock+0xfa0/0xfa0 [ 1146.051110] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.056822] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 1146.061986] ? __wake_up_common_lock+0xe0/0x170 [ 1146.066657] ? blkdev_reread_part+0x1b/0x40 [ 1146.071079] blkdev_reread_part+0x1b/0x40 [ 1146.075230] loop_reread_partitions+0x72/0x80 [ 1146.079727] loop_set_status+0xbff/0x11f0 [ 1146.083989] ? loop_set_status64+0xa5/0x100 [ 1146.088381] ? loop_set_status_old+0x2f0/0x2f0 [ 1146.093129] ? lo_ioctl+0x83/0x1970 [ 1146.096804] ? lo_ioctl+0x50b/0x1970 [ 1146.100584] ? __lock_acquire+0x56a/0x3fa0 [ 1146.104817] ? loop_clr_fd+0xac0/0xac0 [ 1146.108882] ? blkdev_ioctl+0x4d9/0x1810 [ 1146.113046] ? blkpg_ioctl+0x910/0x910 [ 1146.116938] ? trace_hardirqs_on+0x10/0x10 [ 1146.121327] ? exit_robust_list+0x210/0x210 [ 1146.125669] ? block_ioctl+0xd9/0x120 [ 1146.129456] ? blkdev_fallocate+0x3b0/0x3b0 [ 1146.133939] ? do_vfs_ioctl+0xabe/0x1040 [ 1146.138029] ? selinux_file_ioctl+0x426/0x590 [ 1146.142577] ? selinux_file_ioctl+0x116/0x590 [ 1146.147262] ? ioctl_preallocate+0x1e0/0x1e0 [ 1146.151771] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 1146.157395] ? __might_fault+0x177/0x1b0 [ 1146.161587] ? _copy_to_user+0x82/0xd0 [ 1146.165492] ? nsecs_to_jiffies+0x30/0x30 [ 1146.169634] ? security_file_ioctl+0x7c/0xb0 [ 1146.174143] ? SyS_ioctl+0x7f/0xb0 [ 1146.177681] ? do_vfs_ioctl+0x1040/0x1040 [ 1146.181907] ? do_syscall_64+0x19b/0x4b0 [ 1146.185988] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.191524] INFO: task blkid:3043 blocked for more than 140 seconds. [ 1146.198126] Not tainted 4.14.105+ #29 [ 1146.202512] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.210712] blkid D28664 3043 2920 0x00000004 [ 1146.216355] Call Trace: [ 1146.219395] ? __schedule+0x91c/0x1f30 [ 1146.223386] ? __sched_text_start+0x8/0x8 [ 1146.227533] ? lock_downgrade+0x5d0/0x5d0 [ 1146.232403] ? lock_acquire+0x10f/0x380 [ 1146.236381] ? __mutex_lock+0x2c1/0x1430 [ 1146.240493] schedule+0x92/0x1c0 [ 1146.243857] schedule_preempt_disabled+0x13/0x20 [ 1146.248596] __mutex_lock+0x559/0x1430 [ 1146.252682] ? trace_hardirqs_on+0x10/0x10 [ 1146.256916] ? lo_release+0x78/0x190 [ 1146.260683] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.266132] ? lock_downgrade+0x5d0/0x5d0 [ 1146.270473] ? lock_acquire+0x10f/0x380 [ 1146.274452] ? __blkdev_put+0x1cb/0x6d0 [ 1146.278416] ? lo_compat_ioctl+0x130/0x130 [ 1146.282712] ? lo_release+0x78/0x190 [ 1146.286419] lo_release+0x78/0x190 [ 1146.289948] ? lo_compat_ioctl+0x130/0x130 [ 1146.294217] __blkdev_put+0x518/0x6d0 [ 1146.298017] ? bd_set_size+0xb0/0xb0 [ 1146.301772] ? blkdev_put+0x75/0x4c0 [ 1146.305502] ? blkdev_put+0x4c0/0x4c0 [ 1146.309302] blkdev_close+0x86/0xb0 [ 1146.313033] __fput+0x25e/0x700 [ 1146.316321] task_work_run+0x118/0x190 [ 1146.320257] exit_to_usermode_loop+0x13b/0x160 [ 1146.324957] do_syscall_64+0x372/0x4b0 [ 1146.328850] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.334305] INFO: task blkid:3045 blocked for more than 140 seconds. [ 1146.340829] Not tainted 4.14.105+ #29 [ 1146.345147] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.353189] blkid D29344 3045 308 0x00000004 [ 1146.358819] Call Trace: [ 1146.361461] ? __schedule+0x91c/0x1f30 [ 1146.365434] ? __sched_text_start+0x8/0x8 [ 1146.369680] ? lock_downgrade+0x5d0/0x5d0 [ 1146.373902] ? lock_acquire+0x10f/0x380 [ 1146.377886] ? __mutex_lock+0x2c1/0x1430 [ 1146.382170] schedule+0x92/0x1c0 [ 1146.385548] schedule_preempt_disabled+0x13/0x20 [ 1146.390359] __mutex_lock+0x559/0x1430 [ 1146.394313] ? lo_ioctl+0x83/0x1970 [ 1146.398092] ? avc_has_extended_perms+0x5e0/0xc20 [ 1146.403392] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.408859] ? lock_downgrade+0x5d0/0x5d0 [ 1146.413085] ? lock_acquire+0x10f/0x380 [ 1146.417166] ? check_preemption_disabled+0x35/0x1f0 [ 1146.422290] ? avc_has_extended_perms+0x706/0xc20 [ 1146.427271] ? lo_ioctl+0x83/0x1970 [ 1146.430998] lo_ioctl+0x83/0x1970 [ 1146.434564] ? loop_clr_fd+0xac0/0xac0 [ 1146.438437] blkdev_ioctl+0x4d9/0x1810 [ 1146.442472] ? blkpg_ioctl+0x910/0x910 [ 1146.446482] ? __handle_mm_fault+0xd96/0x2640 [ 1146.451064] ? mem_cgroup_commit_charge+0x184/0x3e0 [ 1146.456081] ? lock_downgrade+0x5d0/0x5d0 [ 1146.460277] ? __lru_cache_add+0x177/0x250 [ 1146.464561] block_ioctl+0xd9/0x120 [ 1146.468212] ? blkdev_fallocate+0x3b0/0x3b0 [ 1146.472636] do_vfs_ioctl+0xabe/0x1040 [ 1146.476619] ? selinux_file_ioctl+0x426/0x590 [ 1146.481199] ? selinux_file_ioctl+0x116/0x590 [ 1146.485704] ? ioctl_preallocate+0x1e0/0x1e0 [ 1146.490195] ? selinux_parse_skb.constprop.0+0x16b0/0x16b0 [ 1146.495836] ? __do_page_fault+0x48e/0xb80 [ 1146.500234] ? lock_downgrade+0x5cb/0x5d0 [ 1146.504677] ? security_file_ioctl+0x7c/0xb0 [ 1146.509095] SyS_ioctl+0x7f/0xb0 [ 1146.512535] ? do_vfs_ioctl+0x1040/0x1040 [ 1146.516687] do_syscall_64+0x19b/0x4b0 [ 1146.520622] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.526157] INFO: task blkid:3048 blocked for more than 140 seconds. [ 1146.532936] Not tainted 4.14.105+ #29 [ 1146.537256] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.545310] blkid D27232 3048 2926 0x00000004 [ 1146.550977] Call Trace: [ 1146.553563] ? __schedule+0x91c/0x1f30 [ 1146.557443] ? __sched_text_start+0x8/0x8 [ 1146.561829] ? lock_downgrade+0x5d0/0x5d0 [ 1146.565977] ? lock_acquire+0x10f/0x380 [ 1146.569956] ? __mutex_lock+0x2c1/0x1430 [ 1146.574109] schedule+0x92/0x1c0 [ 1146.577479] schedule_preempt_disabled+0x13/0x20 [ 1146.582564] __mutex_lock+0x559/0x1430 [ 1146.586510] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1146.591426] ? trace_hardirqs_on+0x10/0x10 [ 1146.595740] ? __blkdev_get+0xf3/0xf90 [ 1146.599632] ? refcount_inc_not_zero+0x81/0xe0 [ 1146.604331] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.609894] ? kobject_get_unless_zero+0x27/0x40 [ 1146.614729] ? get_disk+0xd0/0xd0 [ 1146.618227] ? exact_match+0x9/0x20 [ 1146.621931] ? kobj_lookup+0x325/0x410 [ 1146.625828] ? blkdev_ioctl+0x1810/0x1810 [ 1146.629981] ? __blkdev_get+0xf3/0xf90 [ 1146.634216] __blkdev_get+0xf3/0xf90 [ 1146.637946] ? __blkdev_put+0x6d0/0x6d0 [ 1146.642091] ? fsnotify+0x8b0/0x1150 [ 1146.645922] blkdev_get+0x97/0x8b0 [ 1146.649706] ? bd_acquire+0x171/0x2c0 [ 1146.655255] ? bd_may_claim+0xd0/0xd0 [ 1146.659065] ? lock_downgrade+0x5d0/0x5d0 [ 1146.663421] ? lock_acquire+0x10f/0x380 [ 1146.667412] ? bd_acquire+0x21/0x2c0 [ 1146.671367] blkdev_open+0x1cc/0x250 [ 1146.675197] ? security_file_open+0x88/0x190 [ 1146.679601] do_dentry_open+0x41b/0xd60 [ 1146.683659] ? bd_acquire+0x2c0/0x2c0 [ 1146.687472] vfs_open+0x105/0x230 [ 1146.691120] path_openat+0xb6b/0x2b70 [ 1146.694941] ? path_mountpoint+0x9a0/0x9a0 [ 1146.699166] ? trace_hardirqs_on+0x10/0x10 [ 1146.703751] do_filp_open+0x1a1/0x280 [ 1146.707630] ? may_open_dev+0xe0/0xe0 [ 1146.711506] ? lock_downgrade+0x5d0/0x5d0 [ 1146.715647] ? lock_acquire+0x10f/0x380 [ 1146.719754] ? __alloc_fd+0x3f/0x490 [ 1146.723552] ? _raw_spin_unlock+0x29/0x40 [ 1146.727699] ? __alloc_fd+0x1bf/0x490 [ 1146.731571] do_sys_open+0x2ca/0x590 [ 1146.735278] ? filp_open+0x60/0x60 [ 1146.738804] ? do_syscall_64+0x43/0x4b0 [ 1146.742842] ? do_sys_open+0x590/0x590 [ 1146.746728] do_syscall_64+0x19b/0x4b0 [ 1146.750734] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.756116] INFO: task blkid:3052 blocked for more than 140 seconds. [ 1146.762678] Not tainted 4.14.105+ #29 [ 1146.766987] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1146.774989] blkid D29264 3052 2919 0x00000004 [ 1146.780840] Call Trace: [ 1146.783429] ? __schedule+0x91c/0x1f30 [ 1146.787303] ? __sched_text_start+0x8/0x8 [ 1146.791516] ? lock_downgrade+0x5d0/0x5d0 [ 1146.795725] ? lock_acquire+0x10f/0x380 [ 1146.799702] ? __mutex_lock+0x2c1/0x1430 [ 1146.804007] schedule+0x92/0x1c0 [ 1146.807479] schedule_preempt_disabled+0x13/0x20 [ 1146.812475] __mutex_lock+0x559/0x1430 [ 1146.816367] ? __mutex_unlock_slowpath+0x9a/0x7d0 [ 1146.821254] ? trace_hardirqs_on+0x10/0x10 [ 1146.825480] ? __blkdev_get+0xf3/0xf90 [ 1146.829450] ? refcount_inc_not_zero+0x81/0xe0 [ 1146.834172] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1146.839746] ? kobject_get_unless_zero+0x27/0x40 [ 1146.844578] ? get_disk+0xd0/0xd0 [ 1146.848026] ? exact_match+0x9/0x20 [ 1146.851696] ? kobj_lookup+0x325/0x410 [ 1146.855585] ? blkdev_ioctl+0x1810/0x1810 [ 1146.859809] ? __blkdev_get+0xf3/0xf90 [ 1146.863793] __blkdev_get+0xf3/0xf90 [ 1146.867517] ? __blkdev_put+0x6d0/0x6d0 [ 1146.871569] ? fsnotify+0x8b0/0x1150 [ 1146.875301] blkdev_get+0x97/0x8b0 [ 1146.878841] ? bd_acquire+0x171/0x2c0 [ 1146.882713] ? bd_may_claim+0xd0/0xd0 [ 1146.886510] ? lock_downgrade+0x5d0/0x5d0 [ 1146.890730] ? lock_acquire+0x10f/0x380 [ 1146.894704] ? bd_acquire+0x21/0x2c0 [ 1146.898421] blkdev_open+0x1cc/0x250 [ 1146.902279] ? security_file_open+0x88/0x190 [ 1146.906700] do_dentry_open+0x41b/0xd60 [ 1146.910719] ? bd_acquire+0x2c0/0x2c0 [ 1146.914520] vfs_open+0x105/0x230 [ 1146.918045] path_openat+0xb6b/0x2b70 [ 1146.921942] ? path_mountpoint+0x9a0/0x9a0 [ 1146.926183] ? trace_hardirqs_on+0x10/0x10 [ 1146.930909] do_filp_open+0x1a1/0x280 [ 1146.934727] ? may_open_dev+0xe0/0xe0 [ 1146.938535] ? lock_downgrade+0x5d0/0x5d0 [ 1146.942759] ? lock_acquire+0x10f/0x380 [ 1146.946733] ? __alloc_fd+0x3f/0x490 [ 1146.950493] ? _raw_spin_unlock+0x29/0x40 [ 1146.954749] ? __alloc_fd+0x1bf/0x490 [ 1146.958541] do_sys_open+0x2ca/0x590 [ 1146.962333] ? filp_open+0x60/0x60 [ 1146.965887] ? do_syscall_64+0x43/0x4b0 [ 1146.969841] ? do_sys_open+0x590/0x590 [ 1146.973770] do_syscall_64+0x19b/0x4b0 [ 1146.977652] ? entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 1146.983071] [ 1146.983071] Showing all locks held in the system: [ 1146.993692] 1 lock held by khungtaskd/23: [ 1146.997916] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1147.007047] 2 locks held by getty/1757: [ 1147.011190] #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x22/0x80 [ 1147.020275] #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1f7/0x1700 [ 1147.029565] 1 lock held by syz-executor.2/1962: [ 1147.034262] #0: (loop_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x83/0x1970 [ 1147.042635] 2 locks held by syz-executor.4/1970: [ 1147.047369] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.055899] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x19/0xb0 [ 1147.063996] 2 locks held by syz-executor.5/1972: [ 1147.068728] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.077297] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x19/0xb0 [ 1147.085388] 2 locks held by syz-executor.0/1975: [ 1147.090168] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.098665] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x19/0xb0 [ 1147.107561] 2 locks held by syz-executor.1/1978: [ 1147.112357] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.120926] #1: (loop_index_mutex){+.+.}, at: [] lo_open+0x19/0xb0 [ 1147.128994] 2 locks held by syz-executor.3/3042: [ 1147.133788] #0: (loop_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x83/0x1970 [ 1147.143339] #1: (&bdev->bd_mutex){+.+.}, at: [] blkdev_reread_part+0x1b/0x40 [ 1147.152336] 3 locks held by blkid/3043: [ 1147.156295] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_put+0xb1/0x6d0 [ 1147.165046] #1: (loop_index_mutex){+.+.}, at: [] lo_release+0x19/0x190 [ 1147.173498] #2: (loop_ctl_mutex#2){+.+.}, at: [] lo_release+0x78/0x190 [ 1147.181979] 1 lock held by blkid/3045: [ 1147.185850] #0: (loop_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x83/0x1970 [ 1147.194224] 1 lock held by blkid/3048: [ 1147.198095] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.206632] 1 lock held by blkid/3052: [ 1147.210554] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.219097] 1 lock held by blkid/3054: [ 1147.223041] #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0xf3/0xf90 [ 1147.231575] [ 1147.233188] ============================================= [ 1147.233188] [ 1147.240346] NMI backtrace for cpu 1 [ 1147.243987] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.105+ #29 [ 1147.250542] Call Trace: [ 1147.253114] dump_stack+0xb9/0x10e [ 1147.256653] ? irq_force_complete_move+0x2c1/0x2e5 [ 1147.261601] nmi_cpu_backtrace.cold+0x47/0x86 [ 1147.266079] ? irq_force_complete_move.cold+0x7b/0x7b [ 1147.271251] ? nmi_trigger_cpumask_backtrace+0x119/0x147 [ 1147.276682] ? watchdog+0x5d3/0xb60 [ 1147.280303] ? reset_hung_task_detector+0x10/0x10 [ 1147.285127] ? kthread+0x310/0x420 [ 1147.288659] ? kthread_create_on_node+0xf0/0xf0 [ 1147.293309] ? ret_from_fork+0x3a/0x50 [ 1147.297275] Sending NMI from CPU 1 to CPUs 0: [ 1147.302270] NMI backtrace for cpu 0 [ 1147.302277] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.105+ #29 [ 1147.302282] task: ffffffffa5c31200 task.stack: ffffffffa5c00000 [ 1147.302287] RIP: 0010:cpumask_next_and+0x12/0xa0 [ 1147.302292] RSP: 0018:ffff8881dba078d0 EFLAGS: 00000246 [ 1147.302301] RAX: ffffed103b740fa2 RBX: ffff8881dba07ad8 RCX: 1ffffffff4c06939 [ 1147.302304] RDX: ffff8881dba1e4b8 RSI: ffff8881da96af28 RDI: 0000000000000000 [ 1147.302307] RBP: 000000000002a200 R08: 0000000000000001 R09: ffff8881dba2a200 [ 1147.302310] R10: ffffed103b740f64 R11: ffff8881dba07b27 R12: ffff8881dba2a200 [ 1147.302312] R13: ffff8881da96af28 R14: ffff8881dba1e4b8 R15: 0000000000000000 [ 1147.302315] FS: 0000000000000000(0000) GS:ffff8881dba00000(0000) knlGS:0000000000000000 [ 1147.302318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1147.302321] CR2: 0000000000781f04 CR3: 00000001bc626005 CR4: 00000000001606b0 [ 1147.302323] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1147.302326] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1147.302328] Call Trace: [ 1147.302329] [ 1147.302331] find_busiest_group+0x3b8/0x3950 [ 1147.302333] ? __lock_acquire+0x4c1/0x3fa0 [ 1147.302335] ? update_group_capacity+0xb60/0xb60 [ 1147.302338] ? trace_hardirqs_on+0x10/0x10 [ 1147.302340] ? reacquire_held_locks+0xb5/0x3f0 [ 1147.302342] ? detach_task.isra.0+0x20d/0x540 [ 1147.302344] ? lock_downgrade+0x5d0/0x5d0 [ 1147.302346] ? _find_next_bit+0xdb/0x100 [ 1147.302348] load_balance+0x3f9/0x2a00 [ 1147.302350] ? trace_hardirqs_on+0x10/0x10 [ 1147.302352] ? find_busiest_group+0x3950/0x3950 [ 1147.302354] ? rebalance_domains+0xd1/0xd50 [ 1147.302356] ? check_preemption_disabled+0x35/0x1f0 [ 1147.302358] rebalance_domains+0x785/0xd50 [ 1147.302360] ? pick_next_task_fair+0x2860/0x2860 [ 1147.302362] ? run_rebalance_domains+0x25a/0x8e0 [ 1147.302364] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 1147.302367] run_rebalance_domains+0x60f/0x8e0 [ 1147.302369] __do_softirq+0x234/0x9ca [ 1147.302371] ? check_preemption_disabled+0x35/0x1f0 [ 1147.302373] irq_exit+0x114/0x150 [ 1147.302375] reschedule_interrupt+0x84/0x90 [ 1147.302376] [ 1147.302379] RIP: 0010:native_safe_halt+0x2/0x10 [ 1147.302381] RSP: 0018:ffffffffa5c07d48 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 [ 1147.302386] RAX: 0000000000000007 RBX: ffffffffa602a508 RCX: 0000000000000000 [ 1147.302389] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffffa5c31a2c [ 1147.302392] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 1147.302394] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1147.302397] R13: 0000000000000000 R14: ffffffffa5c31200 R15: dffffc0000000000 [ 1147.302399] default_idle+0x50/0x390 [ 1147.302401] do_idle+0x2e6/0x390 [ 1147.302403] ? arch_cpu_idle_exit+0x40/0x40 [ 1147.302405] ? check_preemption_disabled+0x35/0x1f0 [ 1147.302408] cpu_startup_entry+0xc6/0xd0 [ 1147.302410] ? cpu_in_idle+0x20/0x20 [ 1147.302462] ? preempt_count_add+0xb8/0x180 [ 1147.302465] ? trace_event_define_fields_x86_irq_vector+0x28/0x28 [ 1147.302467] start_kernel+0x712/0x74a [ 1147.302469] ? mem_encrypt_init+0x5/0x5 [ 1147.302471] ? memcpy_orig+0x54/0x110 [ 1147.302473] secondary_startup_64+0xa5/0xb0 [ 1147.302474] Code: 48 63 d2 e8 81 75 37 ff 5b 5d c3 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 89 ff 41 56 49 89 d6 41 55 49 89 f5 41 54 55 <48> c7 c5 c4 4a 03 a6 49 89 ec 53 83 e5 07 e8 eb 15 b1 fe 49 c1 [ 1147.303322] Kernel panic - not syncing: hung_task: blocked tasks [ 1147.628240] CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.105+ #29 [ 1147.634809] Call Trace: [ 1147.637398] dump_stack+0xb9/0x10e [ 1147.640935] panic+0x1d9/0x3c2 [ 1147.644203] ? add_taint.cold+0x16/0x16 [ 1147.648159] ? irq_force_complete_move.cold+0x7b/0x7b [ 1147.653331] ? ___preempt_schedule+0x16/0x18 [ 1147.657725] watchdog+0x5e4/0xb60 [ 1147.661169] ? reset_hung_task_detector+0x10/0x10 [ 1147.666010] kthread+0x310/0x420 [ 1147.669378] ? kthread_create_on_node+0xf0/0xf0 [ 1147.674029] ret_from_fork+0x3a/0x50 [ 1147.678183] Kernel Offset: 0x22800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 1147.689089] Rebooting in 86400 seconds..