[ 277.176010] sd 0:0:1:0: device reset [ 277.183161] sd 0:0:1:0: device reset [ 277.194051] sd 0:0:1:0: device reset [ 277.203743] sd 0:0:1:0: device reset [ 277.222194] sd 0:0:1:0: device reset [ 277.238983] sd 0:0:1:0: device reset [ 277.253156] sd 0:0:1:0: device reset [ 277.274555] sd 0:0:1:0: device reset [ 277.280490] sd 0:0:1:0: device reset [ 277.284770] sd 0:0:1:0: device reset Warning: Permanently added '10.128.10.38' (ECDSA) to the list of known hosts. [ 404.249688] sd 0:0:1:0: device reset [ 404.258346] sd 0:0:1:0: device reset [ 404.262971] sd 0:0:1:0: device reset [ 404.268215] sd 0:0:1:0: device reset [ 404.276025] sd 0:0:1:0: device reset [ 404.282000] sd 0:0:1:0: device reset [ 404.286004] sd 0:0:1:0: device reset [ 404.293917] sd 0:0:1:0: device reset [ 404.298108] sd 0:0:1:0: device reset [ 404.298115] sd 0:0:1:0: device reset [ 404.307219] sd 0:0:1:0: device reset [ 404.314272] sd 0:0:1:0: device reset [ 404.320638] sd 0:0:1:0: device reset [ 404.324977] sd 0:0:1:0: device reset [ 404.330766] sd 0:0:1:0: device reset [ 404.338190] sd 0:0:1:0: device reset [ 404.345184] sd 0:0:1:0: device reset [ 404.349968] sd 0:0:1:0: device reset [ 404.356297] sd 0:0:1:0: device reset [ 404.361957] sd 0:0:1:0: device reset [ 404.366207] sd 0:0:1:0: device reset [ 404.374197] sd 0:0:1:0: device reset [ 404.379958] sd 0:0:1:0: device reset [ 404.385487] sd 0:0:1:0: device reset [ 404.389812] sd 0:0:1:0: device reset [ 404.394346] sd 0:0:1:0: device reset [ 404.399791] sd 0:0:1:0: device reset [ 404.406621] sd 0:0:1:0: device reset [ 404.411437] sd 0:0:1:0: device reset [ 404.420713] sd 0:0:1:0: device reset [ 404.425189] sd 0:0:1:0: device reset [ 404.429927] sd 0:0:1:0: device reset [ 404.436645] sd 0:0:1:0: device reset [ 404.440739] sd 0:0:1:0: device reset [ 404.446984] sd 0:0:1:0: device reset [ 404.452071] sd 0:0:1:0: device reset [ 404.456470] sd 0:0:1:0: device reset [ 404.460714] sd 0:0:1:0: device reset [ 404.460716] sd 0:0:1:0: device reset [ 404.464524] sd 0:0:1:0: device reset [ 404.468296] sd 0:0:1:0: device reset [ 404.478769] sd 0:0:1:0: device reset [ 404.479583] sd 0:0:1:0: device reset [ 404.487607] sd 0:0:1:0: device reset [ 404.497716] sd 0:0:1:0: device reset [ 404.505402] sd 0:0:1:0: device reset [ 404.510614] sd 0:0:1:0: device reset [ 404.518547] sd 0:0:1:0: device reset [ 404.523623] sd 0:0:1:0: device reset [ 404.527862] sd 0:0:1:0: device reset [ 404.534355] sd 0:0:1:0: device reset [ 404.538733] sd 0:0:1:0: device reset [ 404.546094] sd 0:0:1:0: device reset [ 404.550701] sd 0:0:1:0: device reset [ 404.556005] sd 0:0:1:0: device reset [ 404.556007] sd 0:0:1:0: device reset [ 404.557264] sd 0:0:1:0: device reset [ 404.565406] sd 0:0:1:0: device reset [ 404.574059] sd 0:0:1:0: device reset [ 404.579390] sd 0:0:1:0: device reset [ 404.583935] sd 0:0:1:0: device reset [ 404.593714] sd 0:0:1:0: device reset [ 404.603399] sd 0:0:1:0: device reset [ 404.607799] sd 0:0:1:0: device reset [ 404.613300] sd 0:0:1:0: device reset [ 404.618272] sd 0:0:1:0: device reset [ 404.625060] sd 0:0:1:0: device reset [ 404.630020] sd 0:0:1:0: device reset [ 404.636676] sd 0:0:1:0: device reset [ 404.643754] sd 0:0:1:0: device reset [ 404.643760] sd 0:0:1:0: device reset [ 404.648781] sd 0:0:1:0: device reset [ 404.657316] sd 0:0:1:0: device reset [ 404.659977] sd 0:0:1:0: device reset [ 404.669170] sd 0:0:1:0: device reset [ 404.671073] sd 0:0:1:0: device reset [ 404.679272] sd 0:0:1:0: device reset [ 404.684655] sd 0:0:1:0: device reset [ 404.691594] sd 0:0:1:0: device reset [ 427.950684] INFO: task syz-executor.3:7714 blocked for more than 140 seconds. [ 427.958264] Not tainted 4.14.216-syzkaller #0 [ 427.963406] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 427.971661] syz-executor.3 D24792 7714 1 0x00000004 [ 427.977831] Call Trace: [ 427.980398] __schedule+0x824/0x1ee0 [ 427.984171] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 427.989586] ? firmware_map_remove+0x172/0x172 [ 427.994398] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 427.999671] ? prepare_to_wait+0x125/0x3b0 [ 428.004052] schedule+0x7f/0x1b0 [ 428.007649] io_schedule+0x1c/0x70 [ 428.011351] bit_wait_io+0xf/0x90 [ 428.014792] __wait_on_bit+0xb0/0x130 [ 428.018583] ? bit_wait+0x90/0x90 [ 428.022254] out_of_line_wait_on_bit+0xbd/0xe0 [ 428.026957] ? __wait_on_bit+0x130/0x130 [ 428.031199] ? bit_waitqueue+0x30/0x30 [ 428.035091] __wait_on_buffer+0x52/0x60 [ 428.039760] ext4_find_entry+0x889/0xdc0 [ 428.044006] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 428.048532] ? d_walk.part.9+0x3b6/0x6f0 [ 428.052668] ? lock_downgrade+0x7f0/0x7f0 [ 428.057003] ? inode_get_rsv_space.part.9+0xf0/0xf0 [ 428.062193] ? do_raw_spin_unlock+0x16a/0x250 [ 428.066720] ? d_walk.part.9+0x3b6/0x6f0 [ 428.070955] ext4_rmdir+0x166/0xd90 [ 428.074760] ? ext4_rename2+0x140/0x140 [ 428.078828] ? path_has_submounts+0x100/0x100 [ 428.083507] vfs_rmdir+0x1dc/0x3c0 [ 428.087339] do_rmdir+0x295/0x330 [ 428.091040] ? kern_path_create+0x30/0x30 [ 428.095242] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 428.100669] ? _raw_spin_unlock_irq+0x60/0x90 [ 428.105397] ? task_work_run+0xbf/0x170 [ 428.109746] ? do_syscall_64+0x4c/0x5b0 [ 428.113952] ? SyS_mkdir+0x20/0x20 [ 428.117791] SyS_rmdir+0x11/0x20 [ 428.121633] do_syscall_64+0x1c7/0x5b0 [ 428.125969] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.130985] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 428.136928] RIP: 0033:0x45dbc7 [ 428.140266] RSP: 002b:00007fff5b163e38 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 [ 428.148327] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 000000000045dbc7 [ 428.155788] RDX: 0000000000000000 RSI: 000000000074e678 RDI: 00007fff5b164f70 [ 428.163137] RBP: 00000000000018dc R08: 0000000000000000 R09: 0000000000000001 [ 428.170788] R10: 000000000000000a R11: 0000000000000207 R12: 00007fff5b164f70 [ 428.178058] R13: 0000000001da9a60 R14: 0000000000000000 R15: 00007fff5b164f70 [ 428.185745] INFO: task syz-executor.0:7715 blocked for more than 140 seconds. [ 428.193134] Not tainted 4.14.216-syzkaller #0 [ 428.198401] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 428.206847] syz-executor.0 D24616 7715 1 0x00000004 [ 428.212638] Call Trace: [ 428.215385] __schedule+0x824/0x1ee0 [ 428.219455] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 428.224684] ? firmware_map_remove+0x172/0x172 [ 428.229364] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 428.235375] ? prepare_to_wait+0x125/0x3b0 [ 428.239795] schedule+0x7f/0x1b0 [ 428.243210] io_schedule+0x1c/0x70 [ 428.246854] bit_wait_io+0xf/0x90 [ 428.250381] __wait_on_bit+0xb0/0x130 [ 428.254396] ? bit_wait+0x90/0x90 [ 428.257949] out_of_line_wait_on_bit+0xbd/0xe0 [ 428.262950] ? __wait_on_bit+0x130/0x130 [ 428.267222] ? bit_waitqueue+0x30/0x30 [ 428.271205] __wait_on_buffer+0x52/0x60 [ 428.275353] ext4_find_entry+0x889/0xdc0 [ 428.279476] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 428.284131] ? trace_hardirqs_on+0x10/0x10 [ 428.288470] ? inode_get_rsv_space.part.9+0xf0/0xf0 [ 428.293723] ? __d_lookup+0x2dc/0x5d0 [ 428.297785] ext4_unlink+0x15a/0xfd0 [ 428.301924] ? lock_acquire+0x17e/0x3e0 [ 428.305992] ? ext4_rmdir+0xd90/0xd90 [ 428.309794] vfs_unlink+0x238/0x430 [ 428.313505] ? apparmor_path_unlink+0x16/0x20 [ 428.318344] do_unlinkat+0x402/0x640 [ 428.322211] ? do_rmdir+0x330/0x330 [ 428.326477] ? SyS_newstat+0xc0/0xc0 [ 428.330275] ? SyS_newstat+0xc0/0xc0 [ 428.334068] ? do_syscall_64+0x4c/0x5b0 [ 428.339091] ? SyS_unlinkat+0x30/0x30 [ 428.342971] SyS_unlink+0x11/0x20 [ 428.346559] do_syscall_64+0x1c7/0x5b0 [ 428.350424] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.355333] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 428.361056] RIP: 0033:0x45dba7 [ 428.364343] RSP: 002b:00007ffe4b9ad6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 428.372106] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045dba7 [ 428.379679] RDX: 00007ffe4b9ad710 RSI: 00007ffe4b9ad710 RDI: 00007ffe4b9ad7a0 [ 428.387235] RBP: 00000000000018f7 R08: 0000000000000000 R09: 0000000000000011 [ 428.394584] R10: 000000000000000a R11: 0000000000000246 R12: 00007ffe4b9ae830 [ 428.402538] R13: 0000000001d5aa60 R14: 0000000000000000 R15: 00007ffe4b9ae830 [ 428.409843] INFO: task syz-executor.4:7718 blocked for more than 140 seconds. [ 428.417671] Not tainted 4.14.216-syzkaller #0 [ 428.423040] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 428.431610] syz-executor.4 D24616 7718 1 0x00000004 [ 428.437243] Call Trace: [ 428.440741] __schedule+0x824/0x1ee0 [ 428.444466] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 428.449736] ? firmware_map_remove+0x172/0x172 [ 428.454368] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 428.459688] ? prepare_to_wait+0x125/0x3b0 [ 428.464372] schedule+0x7f/0x1b0 [ 428.468087] io_schedule+0x1c/0x70 [ 428.471725] bit_wait_io+0xf/0x90 [ 428.475171] __wait_on_bit+0xb0/0x130 [ 428.478973] ? bit_wait+0x90/0x90 [ 428.482488] out_of_line_wait_on_bit+0xbd/0xe0 [ 428.487527] ? __wait_on_bit+0x130/0x130 [ 428.491647] ? bit_waitqueue+0x30/0x30 [ 428.495779] __wait_on_buffer+0x52/0x60 [ 428.499796] ext4_find_entry+0x889/0xdc0 [ 428.504024] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 428.508512] ? d_walk.part.9+0x3b6/0x6f0 [ 428.512666] ? lock_downgrade+0x7f0/0x7f0 [ 428.516893] ? inode_get_rsv_space.part.9+0xf0/0xf0 [ 428.522057] ? do_raw_spin_unlock+0x16a/0x250 [ 428.526600] ? d_walk.part.9+0x3b6/0x6f0 [ 428.530889] ext4_rmdir+0x166/0xd90 [ 428.534515] ? ext4_rename2+0x140/0x140 [ 428.538499] ? path_has_submounts+0x100/0x100 [ 428.543825] vfs_rmdir+0x1dc/0x3c0 [ 428.547406] do_rmdir+0x295/0x330 [ 428.551121] ? kern_path_create+0x30/0x30 [ 428.555258] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 428.560344] ? _raw_spin_unlock_irq+0x60/0x90 [ 428.564887] ? task_work_run+0xbf/0x170 [ 428.569044] ? do_syscall_64+0x4c/0x5b0 [ 428.573173] ? SyS_mkdir+0x20/0x20 [ 428.576806] SyS_rmdir+0x11/0x20 [ 428.580349] do_syscall_64+0x1c7/0x5b0 [ 428.584449] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.589399] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 428.595021] RIP: 0033:0x45dbc7 [ 428.598382] RSP: 002b:00007ffea7b01df8 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 [ 428.606225] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 000000000045dbc7 [ 428.613567] RDX: 0000000000000000 RSI: 000000000074e678 RDI: 00007ffea7b02f30 [ 428.621158] RBP: 00000000000018ce R08: 0000000000000000 R09: 0000000000000001 [ 428.629045] R10: 000000000000000a R11: 0000000000000207 R12: 00007ffea7b02f30 [ 428.636958] R13: 00000000021cea60 R14: 0000000000000000 R15: 00007ffea7b02f30 [ 428.645176] INFO: task syz-executor.5:7720 blocked for more than 140 seconds. [ 428.652945] Not tainted 4.14.216-syzkaller #0 [ 428.658039] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 428.666229] syz-executor.5 D24792 7720 1 0x00000004 [ 428.671968] Call Trace: [ 428.674771] __schedule+0x824/0x1ee0 [ 428.678777] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 428.684164] ? firmware_map_remove+0x172/0x172 [ 428.689067] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 428.694402] ? prepare_to_wait+0x125/0x3b0 [ 428.698725] schedule+0x7f/0x1b0 [ 428.702213] io_schedule+0x1c/0x70 [ 428.705742] bit_wait_io+0xf/0x90 [ 428.709277] __wait_on_bit+0xb0/0x130 [ 428.713425] ? bit_wait+0x90/0x90 [ 428.717423] out_of_line_wait_on_bit+0xbd/0xe0 [ 428.722129] ? __wait_on_bit+0x130/0x130 [ 428.726339] ? bit_waitqueue+0x30/0x30 [ 428.730210] __wait_on_buffer+0x52/0x60 [ 428.734253] ext4_find_entry+0x889/0xdc0 [ 428.738442] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 428.743864] ? d_walk.part.9+0x3b6/0x6f0 [ 428.748710] ? lock_downgrade+0x7f0/0x7f0 [ 428.753113] ? inode_get_rsv_space.part.9+0xf0/0xf0 [ 428.758140] ? do_raw_spin_unlock+0x16a/0x250 [ 428.762694] ? d_walk.part.9+0x3b6/0x6f0 [ 428.766862] ext4_rmdir+0x166/0xd90 [ 428.770702] ? ext4_rename2+0x140/0x140 [ 428.774868] ? path_has_submounts+0x100/0x100 [ 428.779959] vfs_rmdir+0x1dc/0x3c0 [ 428.783741] do_rmdir+0x295/0x330 [ 428.787194] ? kern_path_create+0x30/0x30 [ 428.791720] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 428.796869] ? _raw_spin_unlock_irq+0x60/0x90 [ 428.801610] ? task_work_run+0xbf/0x170 [ 428.805844] ? do_syscall_64+0x4c/0x5b0 [ 428.809908] ? SyS_mkdir+0x20/0x20 [ 428.813701] SyS_rmdir+0x11/0x20 [ 428.817154] do_syscall_64+0x1c7/0x5b0 [ 428.821179] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.826417] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 428.831869] RIP: 0033:0x45dbc7 [ 428.835063] RSP: 002b:00007ffff24a1848 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 [ 428.842844] RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 000000000045dbc7 [ 428.851093] RDX: 0000000000000000 RSI: 000000000074e678 RDI: 00007ffff24a2980 [ 428.858538] RBP: 0000000000001878 R08: 0000000000000000 R09: 0000000000000001 [ 428.865986] R10: 000000000000000a R11: 0000000000000207 R12: 00007ffff24a2980 [ 428.873609] R13: 00000000021aba60 R14: 0000000000000000 R15: 00007ffff24a2980 [ 428.881115] INFO: task syz-executor.1:7722 blocked for more than 140 seconds. [ 428.888588] Not tainted 4.14.216-syzkaller #0 [ 428.893730] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 428.901763] syz-executor.1 D24472 7722 1 0x00000004 [ 428.907488] Call Trace: [ 428.910068] __schedule+0x824/0x1ee0 [ 428.913982] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 428.919165] ? firmware_map_remove+0x172/0x172 [ 428.923893] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 428.929078] ? prepare_to_wait+0x125/0x3b0 [ 428.933544] schedule+0x7f/0x1b0 [ 428.936902] io_schedule+0x1c/0x70 [ 428.940665] bit_wait_io+0xf/0x90 [ 428.944200] __wait_on_bit+0xb0/0x130 [ 428.947998] ? bit_wait+0x90/0x90 [ 428.952208] out_of_line_wait_on_bit+0xbd/0xe0 [ 428.957028] ? __wait_on_bit+0x130/0x130 [ 428.961147] ? bit_waitqueue+0x30/0x30 [ 428.965104] __wait_on_buffer+0x52/0x60 [ 428.969217] ext4_find_entry+0x889/0xdc0 [ 428.973345] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 428.977984] ? trace_hardirqs_on+0x10/0x10 [ 428.982268] ? inode_get_rsv_space.part.9+0xf0/0xf0 [ 428.987464] ? __d_lookup+0x2dc/0x5d0 [ 428.991425] ext4_unlink+0x15a/0xfd0 [ 428.995141] ? lock_acquire+0x17e/0x3e0 [ 428.999191] ? ext4_rmdir+0xd90/0xd90 [ 429.003114] vfs_unlink+0x238/0x430 [ 429.006741] ? apparmor_path_unlink+0x16/0x20 [ 429.011371] do_unlinkat+0x402/0x640 [ 429.015076] ? do_rmdir+0x330/0x330 [ 429.018937] ? SyS_newstat+0xc0/0xc0 [ 429.022801] ? SyS_newstat+0xc0/0xc0 [ 429.026510] ? do_syscall_64+0x4c/0x5b0 [ 429.030520] ? SyS_unlinkat+0x30/0x30 [ 429.034314] SyS_unlink+0x11/0x20 [ 429.037985] do_syscall_64+0x1c7/0x5b0 [ 429.042130] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.047341] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 429.052829] RIP: 0033:0x45dba7 [ 429.056526] RSP: 002b:00007ffd428ed9c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 429.064602] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045dba7 [ 429.072411] RDX: 00007ffd428ed9e0 RSI: 00007ffd428ed9e0 RDI: 00007ffd428eda70 [ 429.079945] RBP: 0000000000001827 R08: 0000000000000000 R09: 0000000000000011 [ 429.087536] R10: 000000000000000a R11: 0000000000000246 R12: 00007ffd428eeb00 [ 429.095269] R13: 000000000213da60 R14: 0000000000000000 R15: 00007ffd428eeb00 [ 429.102806] INFO: task syz-executor.2:24680 blocked for more than 140 seconds. [ 429.110526] Not tainted 4.14.216-syzkaller #0 [ 429.115540] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.124005] syz-executor.2 D29672 24680 7721 0x00000004 [ 429.129628] Call Trace: [ 429.132348] __schedule+0x824/0x1ee0 [ 429.136056] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 429.141555] ? firmware_map_remove+0x172/0x172 [ 429.146136] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 429.151299] ? prepare_to_wait+0x125/0x3b0 [ 429.155534] schedule+0x7f/0x1b0 [ 429.159389] io_schedule+0x1c/0x70 [ 429.162998] bit_wait_io+0xf/0x90 [ 429.166692] __wait_on_bit+0xb0/0x130 [ 429.170788] ? bit_wait+0x90/0x90 [ 429.174248] out_of_line_wait_on_bit+0xbd/0xe0 [ 429.179080] ? __wait_on_bit+0x130/0x130 [ 429.183279] ? bit_waitqueue+0x30/0x30 [ 429.187352] __wait_on_buffer+0x52/0x60 [ 429.191391] ext4_find_entry+0x889/0xdc0 [ 429.195444] ? ext4_dx_find_entry+0x3c0/0x3c0 [ 429.199946] ? d_alloc+0x1c4/0x250 [ 429.203650] ext4_lookup+0x10a/0x610 [ 429.207500] ? ext4_find_entry+0xdc0/0xdc0 [ 429.211788] ? _raw_spin_unlock+0x2c/0x50 [ 429.216022] ? d_alloc+0x1c4/0x250 [ 429.219649] __lookup_hash+0xed/0x160 [ 429.223554] filename_create+0x183/0x400 [ 429.227853] ? kern_path_mountpoint+0x40/0x40 [ 429.232429] ? strncpy_from_user+0x84/0x300 [ 429.236866] ? kmem_cache_alloc+0x367/0x3e0 [ 429.241302] ? getname_flags+0xf6/0x510 [ 429.245499] ? SyS_symlinkat+0x1c0/0x1c0 [ 429.249676] SyS_symlinkat+0xbd/0x1c0 [ 429.253564] ? SyS_unlink+0x20/0x20 [ 429.257434] ? do_syscall_64+0x4c/0x5b0 [ 429.262297] ? SyS_symlinkat+0x1c0/0x1c0 [ 429.266348] SyS_symlink+0x11/0x20 [ 429.269887] do_syscall_64+0x1c7/0x5b0 [ 429.273834] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 429.278886] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 429.284105] RIP: 0033:0x45db87 [ 429.287285] RSP: 002b:00007ffe78172be8 EFLAGS: 00000206 ORIG_RAX: 0000000000000058 [ 429.295055] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045db87 [ 429.302767] RDX: 00007ffe78172c83 RSI: 00000000004c3889 RDI: 00007ffe78172c70 [ 429.310209] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000013 [ 429.317964] R10: 0000000000000075 R11: 0000000000000206 R12: 0000000000000001 [ 429.326207] R13: 00007ffe78172c20 R14: 0000000000000000 R15: 00007ffe78172c30 [ 429.333661] [ 429.333661] Showing all locks held in the system: [ 429.340099] 1 lock held by khungtaskd/1529: [ 429.344570] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x79/0x218 [ 429.354674] 1 lock held by in:imklog/7133: [ 429.358895] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0x8e/0xc0 [ 429.368149] 3 locks held by syz-executor.3/7714: [ 429.373160] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.381647] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] do_rmdir+0x20f/0x330 [ 429.391382] #2: (&type->i_mutex_dir_key#3){++++}, at: [] vfs_rmdir+0xb7/0x3c0 [ 429.400756] 3 locks held by syz-executor.0/7715: [ 429.405779] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.414910] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] do_unlinkat+0x230/0x640 [ 429.425049] #2: (&sb->s_type->i_mutex_key#13){+.+.}, at: [] vfs_unlink+0xb3/0x430 [ 429.434912] 3 locks held by syz-executor.4/7718: [ 429.439763] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.448149] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] do_rmdir+0x20f/0x330 [ 429.457793] #2: (&type->i_mutex_dir_key#3){++++}, at: [] vfs_rmdir+0xb7/0x3c0 [ 429.467928] 3 locks held by syz-executor.5/7720: [ 429.472793] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.481548] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] do_rmdir+0x20f/0x330 [ 429.491264] #2: (&type->i_mutex_dir_key#3){++++}, at: [] vfs_rmdir+0xb7/0x3c0 [ 429.502568] 3 locks held by syz-executor.1/7722: [ 429.507946] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.516600] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] do_unlinkat+0x230/0x640 [ 429.526718] #2: (&sb->s_type->i_mutex_key#13){+.+.}, at: [] vfs_unlink+0xb3/0x430 [ 429.536915] 2 locks held by syz-executor.2/24680: [ 429.542274] #0: (sb_writers#3){.+.+}, at: [] mnt_want_write+0x3c/0xa0 [ 429.551043] #1: (&type->i_mutex_dir_key#3/1){+.+.}, at: [] filename_create+0x150/0x400 [ 429.561120] [ 429.562848] ============================================= [ 429.562848] [ 429.570871] NMI backtrace for cpu 0 [ 429.574761] CPU: 0 PID: 1529 Comm: khungtaskd Not tainted 4.14.216-syzkaller #0 [ 429.582571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 429.593228] Call Trace: [ 429.596077] dump_stack+0x14b/0x1e7 [ 429.599689] nmi_cpu_backtrace.cold.0+0x3c/0x78 [ 429.604710] ? irq_force_complete_move+0x310/0x310 [ 429.609792] nmi_trigger_cpumask_backtrace+0xf6/0x120 [ 429.615479] arch_trigger_cpumask_backtrace+0x14/0x20 [ 429.621198] watchdog+0x51b/0xa70 [ 429.624742] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 429.629837] kthread+0x338/0x400 [ 429.633196] ? reset_hung_task_detector+0x10/0x10 [ 429.638293] ? kthread_create_on_node+0xa0/0xa0 [ 429.643304] ret_from_fork+0x24/0x30 [ 429.647289] Sending NMI from CPU 0 to CPUs 1: [ 429.652042] NMI backtrace for cpu 1 [ 429.652044] CPU: 1 PID: 8 Comm: rcu_preempt Not tainted 4.14.216-syzkaller #0 [ 429.652045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 429.652047] task: ffff8881f5388200 task.stack: ffff8881f5390000 [ 429.652048] RIP: 0010:rcu_gp_kthread+0xb6c/0x1df0 [ 429.652049] RSP: 0018:ffff8881f5397dc8 EFLAGS: 00000286 [ 429.652052] RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000000 [ 429.652053] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff8afa1bc0 [ 429.652054] RBP: ffff8881f5397f00 R08: 0000000000000001 R09: 0000000000000000 [ 429.652056] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 429.652057] R13: fffffbfff11c1b30 R14: ffffffff88f78600 R15: dffffc0000000000 [ 429.652058] FS: 0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000 [ 429.652059] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.652061] CR2: 00007f094b1b5000 CR3: 0000000008e6a005 CR4: 00000000001606e0 [ 429.652062] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 429.652063] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 429.652064] Call Trace: [ 429.652065] ? force_qs_rnp+0x4d0/0x4d0 [ 429.652066] kthread+0x338/0x400 [ 429.652067] ? force_qs_rnp+0x4d0/0x4d0 [ 429.652068] ? kthread_create_on_node+0xa0/0xa0 [ 429.652069] ret_from_fork+0x24/0x30 [ 429.652070] Code: ff ff 48 c1 e8 03 42 80 3c 38 00 0f 85 88 0f 00 00 49 83 be a8 00 00 00 00 74 51 48 85 db 74 4c 48 89 df e8 77 b5 ec 05 48 89 c3 <48> 8b bd 00 ff ff ff 48 8d 75 98 ba 02 04 00 00 e8 ff d2 f8 ff [ 429.652943] Kernel panic - not syncing: hung_task: blocked tasks [ 429.811971] CPU: 0 PID: 1529 Comm: khungtaskd Not tainted 4.14.216-syzkaller #0 [ 429.819496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 429.828942] Call Trace: [ 429.831674] dump_stack+0x14b/0x1e7 [ 429.835425] panic+0x1b0/0x358 [ 429.838618] ? add_taint.cold.4+0x11/0x11 [ 429.842765] watchdog+0x52c/0xa70 [ 429.846397] ? trace_hardirqs_on_caller+0x3bb/0x570 [ 429.851413] kthread+0x338/0x400 [ 429.854917] ? reset_hung_task_detector+0x10/0x10 [ 429.859919] ? kthread_create_on_node+0xa0/0xa0 [ 429.864581] ret_from_fork+0x24/0x30 [ 429.870047] Kernel Offset: disabled [ 429.873692] Rebooting in 86400 seconds..