[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 36.534470] audit: type=1800 audit(1566450393.242:33): pid=7341 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 36.561060] audit: type=1800 audit(1566450393.242:34): pid=7341 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.496196] audit: type=1400 audit(1566450398.202:35): avc: denied { map } for pid=7516 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 597.326762] audit: type=1400 audit(1566450954.032:36): avc: denied { map } for pid=7528 comm="syz-executor010" path="/root/syz-executor010036414" 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 [ 597.342039] print_req_error: I/O error, dev loop3, sector 64 [ 597.359536] print_req_error: I/O error, dev loop3, sector 256 [ 597.366077] UDF-fs: error (device loop3): udf_read_tagged: read failed, block=256, location=256 [ 597.385387] print_req_error: I/O error, dev loop3, sector 512 [ 597.392221] UDF-fs: error (device loop3): udf_read_tagged: read failed, block=512, location=512 [ 597.422576] UDF-fs: warning (device loop3): udf_load_vrs: No anchor found [ 597.429650] UDF-fs: Scanning with blocksize 512 failed [ 597.435873] print_req_error: I/O error, dev loop3, sector 64 [ 665.114994] audit: type=1400 audit(1566451021.822:37): avc: denied { map } for pid=7605 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 749.381568] INFO: task syz-executor010:7538 blocked for more than 140 seconds. [ 749.389224] Not tainted 4.19.67 #41 [ 749.394317] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 749.402410] syz-executor010 D29448 7538 7532 0x00000004 [ 749.408119] Call Trace: [ 749.410856] __schedule+0x866/0x1dc0 [ 749.414728] ? __mutex_lock+0x721/0x1300 [ 749.418804] ? pci_mmcfg_check_reserved+0x170/0x170 [ 749.423994] ? kasan_check_read+0x11/0x20 [ 749.428153] schedule+0x92/0x1c0 [ 749.431841] schedule_preempt_disabled+0x13/0x20 [ 749.436602] __mutex_lock+0x726/0x1300 [ 749.440557] ? mount_bdev+0x93/0x3c0 [ 749.444434] ? blkdev_get+0xcc/0x990 [ 749.448271] ? mutex_trylock+0x1e0/0x1e0 [ 749.452832] ? bd_may_claim+0xd0/0xd0 [ 749.456660] mutex_lock_nested+0x16/0x20 [ 749.460722] ? mutex_lock_nested+0x16/0x20 [ 749.465170] mount_bdev+0x93/0x3c0 [ 749.468779] ? udf_load_vrs+0xc80/0xc80 [ 749.472887] udf_mount+0x35/0x40 [ 749.476264] mount_fs+0xa8/0x31f [ 749.479685] vfs_kern_mount.part.0+0x6f/0x410 [ 749.484314] do_mount+0x53e/0x2bc0 [ 749.487864] ? copy_mount_string+0x40/0x40 [ 749.492295] ? _copy_from_user+0xdd/0x150 [ 749.496483] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 749.502141] ? copy_mount_options+0x280/0x3a0 [ 749.506647] ksys_mount+0xdb/0x150 [ 749.510190] __x64_sys_mount+0xbe/0x150 [ 749.514328] do_syscall_64+0xfd/0x620 [ 749.518137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 749.524235] RIP: 0033:0x44aa29 [ 749.527434] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 749.546546] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 749.554376] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 749.561755] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 749.569035] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 749.576457] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 749.583849] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 749.591147] INFO: task syz-executor010:7578 blocked for more than 140 seconds. [ 749.598643] Not tainted 4.19.67 #41 [ 749.602982] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 749.610946] syz-executor010 D29448 7578 7532 0x00000004 [ 749.616718] Call Trace: [ 749.619317] __schedule+0x866/0x1dc0 [ 749.623152] ? __mutex_lock+0x721/0x1300 [ 749.627224] ? pci_mmcfg_check_reserved+0x170/0x170 [ 749.632366] ? kasan_check_read+0x11/0x20 [ 749.636520] schedule+0x92/0x1c0 [ 749.639902] schedule_preempt_disabled+0x13/0x20 [ 749.644814] __mutex_lock+0x726/0x1300 [ 749.648706] ? mount_bdev+0x93/0x3c0 [ 749.653319] ? blkdev_get+0xcc/0x990 [ 749.657043] ? mutex_trylock+0x1e0/0x1e0 [ 749.661116] ? bd_may_claim+0xd0/0xd0 [ 749.665058] mutex_lock_nested+0x16/0x20 [ 749.669128] ? mutex_lock_nested+0x16/0x20 [ 749.673492] mount_bdev+0x93/0x3c0 [ 749.677038] ? udf_load_vrs+0xc80/0xc80 [ 749.681014] udf_mount+0x35/0x40 [ 749.684513] mount_fs+0xa8/0x31f [ 749.687900] vfs_kern_mount.part.0+0x6f/0x410 [ 749.692528] do_mount+0x53e/0x2bc0 [ 749.696077] ? copy_mount_string+0x40/0x40 [ 749.700313] ? _copy_from_user+0xdd/0x150 [ 749.704593] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 749.710138] ? copy_mount_options+0x280/0x3a0 [ 749.714765] ksys_mount+0xdb/0x150 [ 749.718310] __x64_sys_mount+0xbe/0x150 [ 749.722406] do_syscall_64+0xfd/0x620 [ 749.726217] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 749.731534] RIP: 0033:0x44aa29 [ 749.734731] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 749.753756] RSP: 002b:00007f9074282ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 749.761581] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 000000000044aa29 [ 749.768848] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 749.776249] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 749.784409] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 749.791798] R13: 00007ffed473a76f R14: 00007f90742839c0 R15: 0000000000000001 [ 749.799101] INFO: task syz-executor010:7576 blocked for more than 140 seconds. [ 749.806573] Not tainted 4.19.67 #41 [ 749.810713] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 749.818798] syz-executor010 D28840 7576 7534 0x00000004 [ 749.824631] Call Trace: [ 749.827227] __schedule+0x866/0x1dc0 [ 749.830940] ? __mutex_lock+0x721/0x1300 [ 749.835130] ? pci_mmcfg_check_reserved+0x170/0x170 [ 749.840270] ? kasan_check_read+0x11/0x20 [ 749.844537] schedule+0x92/0x1c0 [ 749.847906] schedule_preempt_disabled+0x13/0x20 [ 749.852778] __mutex_lock+0x726/0x1300 [ 749.856674] ? mount_bdev+0x93/0x3c0 [ 749.860388] ? blkdev_get+0xcc/0x990 [ 749.864244] ? mutex_trylock+0x1e0/0x1e0 [ 749.868310] ? bd_may_claim+0xd0/0xd0 [ 749.872246] mutex_lock_nested+0x16/0x20 [ 749.876308] ? mutex_lock_nested+0x16/0x20 [ 749.880552] mount_bdev+0x93/0x3c0 [ 749.884217] ? udf_load_vrs+0xc80/0xc80 [ 749.888308] udf_mount+0x35/0x40 [ 749.891798] mount_fs+0xa8/0x31f [ 749.895171] vfs_kern_mount.part.0+0x6f/0x410 [ 749.899670] do_mount+0x53e/0x2bc0 [ 749.903364] ? copy_mount_string+0x40/0x40 [ 749.907606] ? _copy_from_user+0xdd/0x150 [ 749.912639] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 749.918180] ? copy_mount_options+0x280/0x3a0 [ 749.922792] ksys_mount+0xdb/0x150 [ 749.926341] __x64_sys_mount+0xbe/0x150 [ 749.930316] do_syscall_64+0xfd/0x620 [ 749.934266] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 749.939458] RIP: 0033:0x44aa29 [ 749.942767] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 749.961776] RSP: 002b:00007f9074282ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 749.969484] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 000000000044aa29 [ 749.976866] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 749.984238] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 749.991621] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 749.998889] R13: 00007ffed473a76f R14: 00007f90742839c0 R15: 0000000000000001 [ 750.006287] INFO: task syz-executor010:7540 blocked for more than 140 seconds. [ 750.013758] Not tainted 4.19.67 #41 [ 750.017901] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 750.025993] syz-executor010 D28888 7540 7530 0x00000004 [ 750.031746] Call Trace: [ 750.034357] __schedule+0x866/0x1dc0 [ 750.038075] ? pci_mmcfg_check_reserved+0x170/0x170 [ 750.043965] ? rwsem_down_write_failed+0x764/0xc30 [ 750.048894] ? _raw_spin_unlock_irq+0x28/0x90 [ 750.053654] ? lockdep_hardirqs_on+0x415/0x5d0 [ 750.058250] schedule+0x92/0x1c0 [ 750.061733] rwsem_down_write_failed+0x774/0xc30 [ 750.066514] ? rwsem_down_read_failed+0x3c0/0x3c0 [ 750.071510] call_rwsem_down_write_failed+0x17/0x30 [ 750.076531] ? call_rwsem_down_write_failed+0x17/0x30 [ 750.081871] ? __lock_acquire+0x231b/0x49c0 [ 750.086199] down_write+0x53/0x90 [ 750.089650] ? grab_super+0xaf/0x2c0 [ 750.093502] grab_super+0xaf/0x2c0 [ 750.097050] ? lock_acquire+0x16f/0x3f0 [ 750.101030] ? drop_super_exclusive+0x30/0x30 [ 750.105664] ? kasan_check_write+0x14/0x20 [ 750.109943] ? do_raw_spin_lock+0xc8/0x240 [ 750.114310] ? kill_litter_super+0x60/0x60 [ 750.118556] sget_userns+0x357/0xd30 [ 750.122393] ? kill_litter_super+0x60/0x60 [ 750.126635] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 750.132288] ? ns_test_super+0x50/0x50 [ 750.136177] ? ns_test_super+0x50/0x50 [ 750.140179] ? kill_litter_super+0x60/0x60 [ 750.144580] sget+0x10c/0x150 [ 750.147696] mount_bdev+0xff/0x3c0 [ 750.151237] ? udf_load_vrs+0xc80/0xc80 [ 750.155358] udf_mount+0x35/0x40 [ 750.158730] mount_fs+0xa8/0x31f [ 750.162232] vfs_kern_mount.part.0+0x6f/0x410 [ 750.166822] do_mount+0x53e/0x2bc0 [ 750.170369] ? copy_mount_string+0x40/0x40 [ 750.175521] ? _copy_from_user+0xdd/0x150 [ 750.179676] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 750.185327] ? copy_mount_options+0x280/0x3a0 [ 750.189830] ksys_mount+0xdb/0x150 [ 750.193492] __x64_sys_mount+0xbe/0x150 [ 750.197476] do_syscall_64+0xfd/0x620 [ 750.201281] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 750.206589] RIP: 0033:0x44aa29 [ 750.209785] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 750.233070] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 750.240784] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 750.248186] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 750.255567] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 750.262946] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 750.270214] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 750.277611] INFO: task syz-executor010:7577 blocked for more than 140 seconds. [ 750.285524] Not tainted 4.19.67 #41 [ 750.289662] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 750.297887] syz-executor010 D29448 7577 7530 0x00000004 [ 750.304428] Call Trace: [ 750.307029] __schedule+0x866/0x1dc0 [ 750.310741] ? __mutex_lock+0x721/0x1300 [ 750.314948] ? pci_mmcfg_check_reserved+0x170/0x170 [ 750.319972] ? kasan_check_read+0x11/0x20 [ 750.324243] schedule+0x92/0x1c0 [ 750.327616] schedule_preempt_disabled+0x13/0x20 [ 750.332491] __mutex_lock+0x726/0x1300 [ 750.336383] ? mount_bdev+0x93/0x3c0 [ 750.340103] ? blkdev_get+0xcc/0x990 [ 750.343946] ? mutex_trylock+0x1e0/0x1e0 [ 750.348011] ? bd_may_claim+0xd0/0xd0 [ 750.352292] mutex_lock_nested+0x16/0x20 [ 750.356353] ? mutex_lock_nested+0x16/0x20 [ 750.360588] mount_bdev+0x93/0x3c0 [ 750.364249] ? udf_load_vrs+0xc80/0xc80 [ 750.368251] udf_mount+0x35/0x40 [ 750.371737] mount_fs+0xa8/0x31f [ 750.375112] vfs_kern_mount.part.0+0x6f/0x410 [ 750.379610] do_mount+0x53e/0x2bc0 [ 750.383290] ? copy_mount_string+0x40/0x40 [ 750.387544] ? _copy_from_user+0xdd/0x150 [ 750.391851] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 750.397398] ? copy_mount_options+0x280/0x3a0 [ 750.402012] ksys_mount+0xdb/0x150 [ 750.405558] __x64_sys_mount+0xbe/0x150 [ 750.409542] do_syscall_64+0xfd/0x620 [ 750.413487] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 750.418677] RIP: 0033:0x44aa29 [ 750.421999] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 750.441826] RSP: 002b:00007f9074282ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 750.449543] RAX: ffffffffffffffda RBX: 00000000006dbc48 RCX: 000000000044aa29 [ 750.456937] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 750.464331] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 750.471717] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 750.478985] R13: 00007ffed473a76f R14: 00007f90742839c0 R15: 0000000000000001 [ 750.486406] INFO: task syz-executor010:7545 blocked for more than 140 seconds. [ 750.493871] Not tainted 4.19.67 #41 [ 750.498024] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 750.506895] syz-executor010 D29448 7545 7533 0x00000004 [ 750.512656] Call Trace: [ 750.515263] __schedule+0x866/0x1dc0 [ 750.518979] ? __mutex_lock+0x721/0x1300 [ 750.523176] ? pci_mmcfg_check_reserved+0x170/0x170 [ 750.528202] ? kasan_check_read+0x11/0x20 [ 750.532481] schedule+0x92/0x1c0 [ 750.535857] schedule_preempt_disabled+0x13/0x20 [ 750.540612] __mutex_lock+0x726/0x1300 [ 750.544628] ? mount_bdev+0x93/0x3c0 [ 750.548347] ? blkdev_get+0xcc/0x990 [ 750.552315] ? mutex_trylock+0x1e0/0x1e0 [ 750.556385] ? bd_may_claim+0xd0/0xd0 [ 750.560209] mutex_lock_nested+0x16/0x20 [ 750.564414] ? mutex_lock_nested+0x16/0x20 [ 750.568660] mount_bdev+0x93/0x3c0 [ 750.573096] ? udf_load_vrs+0xc80/0xc80 [ 750.577094] udf_mount+0x35/0x40 [ 750.580466] mount_fs+0xa8/0x31f [ 750.584025] vfs_kern_mount.part.0+0x6f/0x410 [ 750.588532] do_mount+0x53e/0x2bc0 [ 750.592199] ? copy_mount_string+0x40/0x40 [ 750.596440] ? _copy_from_user+0xdd/0x150 [ 750.600592] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 750.606257] ? copy_mount_options+0x280/0x3a0 [ 750.610763] ksys_mount+0xdb/0x150 [ 750.614432] __x64_sys_mount+0xbe/0x150 [ 750.618506] do_syscall_64+0xfd/0x620 [ 750.622469] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 750.627658] RIP: 0033:0x44aa29 [ 750.630847] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 750.649882] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 750.657794] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 750.665174] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 750.672639] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 750.679909] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 750.687314] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 750.694801] INFO: task syz-executor010:7584 blocked for more than 140 seconds. [ 750.703088] Not tainted 4.19.67 #41 [ 750.707250] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 750.715359] syz-executor010 D28840 7584 7533 0x00000004 [ 750.721005] Call Trace: [ 750.723715] __schedule+0x866/0x1dc0 [ 750.727432] ? __mutex_lock+0x721/0x1300 [ 750.731622] ? pci_mmcfg_check_reserved+0x170/0x170 [ 750.736650] ? kasan_check_read+0x11/0x20 [ 750.740800] schedule+0x92/0x1c0 [ 750.744293] schedule_preempt_disabled+0x13/0x20 [ 750.749051] __mutex_lock+0x726/0x1300 [ 750.753060] ? mount_bdev+0x93/0x3c0 [ 750.756779] ? blkdev_get+0xcc/0x990 [ 750.760499] ? mutex_trylock+0x1e0/0x1e0 [ 750.764684] ? bd_may_claim+0xd0/0xd0 [ 750.768505] mutex_lock_nested+0x16/0x20 [ 750.772695] ? mutex_lock_nested+0x16/0x20 [ 750.776938] mount_bdev+0x93/0x3c0 [ 750.780478] ? udf_load_vrs+0xc80/0xc80 [ 750.784578] udf_mount+0x35/0x40 [ 750.787949] mount_fs+0xa8/0x31f [ 750.791324] vfs_kern_mount.part.0+0x6f/0x410 [ 750.795967] do_mount+0x53e/0x2bc0 [ 750.799518] ? copy_mount_string+0x40/0x40 [ 750.803890] ? _copy_from_user+0xdd/0x150 [ 750.808061] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 750.813726] ? copy_mount_options+0x280/0x3a0 [ 750.818233] ksys_mount+0xdb/0x150 [ 750.821891] __x64_sys_mount+0xbe/0x150 [ 750.825877] do_syscall_64+0xfd/0x620 [ 750.829682] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 750.835784] RIP: 0033:0x44aa29 [ 750.838979] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 750.858012] RSP: 002b:00007f9074261ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 750.865841] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 000000000044aa29 [ 750.873218] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 750.880488] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 750.887876] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 750.895258] R13: 00007ffed473a76f R14: 00007f90742629c0 R15: 0000000000000001 [ 750.902667] INFO: task syz-executor010:7546 blocked for more than 140 seconds. [ 750.910025] Not tainted 4.19.67 #41 [ 750.914294] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 750.922396] syz-executor010 D29448 7546 7531 0x00000004 [ 750.928037] Call Trace: [ 750.930632] __schedule+0x866/0x1dc0 [ 750.934501] ? __mutex_lock+0x721/0x1300 [ 750.938575] ? pci_mmcfg_check_reserved+0x170/0x170 [ 750.943739] ? kasan_check_read+0x11/0x20 [ 750.947894] schedule+0x92/0x1c0 [ 750.951262] schedule_preempt_disabled+0x13/0x20 [ 750.956156] __mutex_lock+0x726/0x1300 [ 750.960053] ? mount_bdev+0x93/0x3c0 [ 750.964668] ? blkdev_get+0xcc/0x990 [ 750.968393] ? mutex_trylock+0x1e0/0x1e0 [ 750.972576] ? bd_may_claim+0xd0/0xd0 [ 750.976401] mutex_lock_nested+0x16/0x20 [ 750.980462] ? mutex_lock_nested+0x16/0x20 [ 750.984829] mount_bdev+0x93/0x3c0 [ 750.988375] ? udf_load_vrs+0xc80/0xc80 [ 750.992485] udf_mount+0x35/0x40 [ 750.995857] mount_fs+0xa8/0x31f [ 750.999231] vfs_kern_mount.part.0+0x6f/0x410 [ 751.003871] do_mount+0x53e/0x2bc0 [ 751.007420] ? copy_mount_string+0x40/0x40 [ 751.011773] ? _copy_from_user+0xdd/0x150 [ 751.015928] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 751.021586] ? copy_mount_options+0x280/0x3a0 [ 751.026095] ksys_mount+0xdb/0x150 [ 751.029641] __x64_sys_mount+0xbe/0x150 [ 751.033748] do_syscall_64+0xfd/0x620 [ 751.037556] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 751.042954] RIP: 0033:0x44aa29 [ 751.046148] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 751.065177] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 751.073020] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 751.080290] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 751.087670] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 751.095832] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 751.103212] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 751.110505] INFO: task syz-executor010:7580 blocked for more than 140 seconds. [ 751.117992] Not tainted 4.19.67 #41 [ 751.122228] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 751.130191] syz-executor010 D29448 7580 7531 0x00000004 [ 751.135967] Call Trace: [ 751.138568] __schedule+0x866/0x1dc0 [ 751.142436] ? __mutex_lock+0x721/0x1300 [ 751.146511] ? pci_mmcfg_check_reserved+0x170/0x170 [ 751.151662] ? kasan_check_read+0x11/0x20 [ 751.155822] schedule+0x92/0x1c0 [ 751.159188] schedule_preempt_disabled+0x13/0x20 [ 751.164425] __mutex_lock+0x726/0x1300 [ 751.168323] ? mount_bdev+0x93/0x3c0 [ 751.172168] ? blkdev_get+0xcc/0x990 [ 751.175887] ? mutex_trylock+0x1e0/0x1e0 [ 751.179949] ? bd_may_claim+0xd0/0xd0 [ 751.183908] mutex_lock_nested+0x16/0x20 [ 751.187974] ? mutex_lock_nested+0x16/0x20 [ 751.192352] mount_bdev+0x93/0x3c0 [ 751.195901] ? udf_load_vrs+0xc80/0xc80 [ 751.199880] udf_mount+0x35/0x40 [ 751.203406] mount_fs+0xa8/0x31f [ 751.206785] vfs_kern_mount.part.0+0x6f/0x410 [ 751.211285] do_mount+0x53e/0x2bc0 [ 751.214989] ? copy_mount_string+0x40/0x40 [ 751.219236] ? _copy_from_user+0xdd/0x150 [ 751.224299] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 751.229853] ? copy_mount_options+0x280/0x3a0 [ 751.234498] ksys_mount+0xdb/0x150 [ 751.238047] __x64_sys_mount+0xbe/0x150 [ 751.242147] do_syscall_64+0xfd/0x620 [ 751.245957] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 751.251183] RIP: 0033:0x44aa29 [ 751.254523] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 751.273565] RSP: 002b:00007f9074261ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 751.281280] RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 000000000044aa29 [ 751.288672] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 751.296075] RBP: 00000000006dbc50 R08: 0000000000000000 R09: 0000000000000000 [ 751.303472] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc5c [ 751.310745] R13: 00007ffed473a76f R14: 00007f90742629c0 R15: 0000000000000001 [ 751.318170] INFO: task syz-executor010:7544 blocked for more than 140 seconds. [ 751.325744] Not tainted 4.19.67 #41 [ 751.329888] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 751.337982] syz-executor010 D29448 7544 7529 0x00000004 [ 751.343752] Call Trace: [ 751.346384] __schedule+0x866/0x1dc0 [ 751.350141] ? __mutex_lock+0x721/0x1300 [ 751.355171] ? pci_mmcfg_check_reserved+0x170/0x170 [ 751.360202] ? kasan_check_read+0x11/0x20 [ 751.364506] schedule+0x92/0x1c0 [ 751.367881] schedule_preempt_disabled+0x13/0x20 [ 751.372758] __mutex_lock+0x726/0x1300 [ 751.376653] ? mount_bdev+0x93/0x3c0 [ 751.380371] ? blkdev_get+0xcc/0x990 [ 751.384347] ? mutex_trylock+0x1e0/0x1e0 [ 751.388418] ? bd_may_claim+0xd0/0xd0 [ 751.392381] mutex_lock_nested+0x16/0x20 [ 751.396450] ? mutex_lock_nested+0x16/0x20 [ 751.400687] mount_bdev+0x93/0x3c0 [ 751.404376] ? udf_load_vrs+0xc80/0xc80 [ 751.408366] udf_mount+0x35/0x40 [ 751.411854] mount_fs+0xa8/0x31f [ 751.415236] vfs_kern_mount.part.0+0x6f/0x410 [ 751.419736] do_mount+0x53e/0x2bc0 [ 751.423417] ? copy_mount_string+0x40/0x40 [ 751.427659] ? _copy_from_user+0xdd/0x150 [ 751.431958] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 751.437512] ? copy_mount_options+0x280/0x3a0 [ 751.442149] ksys_mount+0xdb/0x150 [ 751.445697] __x64_sys_mount+0xbe/0x150 [ 751.450175] do_syscall_64+0xfd/0x620 [ 751.454139] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 751.459332] RIP: 0033:0x44aa29 [ 751.462729] Code: 6e 51 75 65 75 65 44 69 73 63 61 72 64 4d 61 72 6b 22 2c 20 65 72 72 6f 72 20 25 64 2e 20 49 67 6e 6f 72 65 64 2c 20 72 75 6e <6e> 69 6e 67 20 77 69 74 68 20 64 65 66 61 75 6c 74 20 73 65 74 74 [ 751.482546] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 751.490271] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 751.497681] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 751.505064] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 751.512459] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 751.519732] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 751.527171] [ 751.527171] Showing all locks held in the system: [ 751.533730] 1 lock held by khungtaskd/1014: [ 751.538045] #0: 000000003dd93485 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 751.546831] 1 lock held by rs:main Q:Reg/7377: [ 751.551523] 1 lock held by rsyslogd/7380: [ 751.555666] #0: 0000000015a8ad59 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 751.563737] 2 locks held by getty/7501: [ 751.567706] #0: 00000000cfaf1488 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.576102] #1: 00000000cb1b5a50 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.585189] 2 locks held by getty/7502: [ 751.589161] #0: 0000000051cdb0a4 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.597656] #1: 00000000ef4c6d7a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.607263] 2 locks held by getty/7503: [ 751.611267] #0: 000000005f03ee98 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.620460] #1: 00000000d9cdf5ce (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.629502] 2 locks held by getty/7504: [ 751.633576] #0: 000000002d73f265 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.641950] #1: 0000000077e95563 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.650827] 2 locks held by getty/7505: [ 751.654928] #0: 00000000aefaf590 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.663304] #1: 00000000983b4b30 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.672289] 2 locks held by getty/7506: [ 751.676264] #0: 00000000007f6203 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.684644] #1: 000000002cb8a26c (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.693630] 2 locks held by getty/7507: [ 751.697599] #0: 0000000075432656 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 751.705977] #1: 000000002928532b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b30 [ 751.714973] 1 lock held by syz-executor010/7538: [ 751.719722] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.728569] 1 lock held by syz-executor010/7578: [ 751.733431] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.743021] 1 lock held by syz-executor010/7539: [ 751.747779] 1 lock held by syz-executor010/7576: [ 751.752642] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.761457] 2 locks held by syz-executor010/7540: [ 751.766361] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.775170] #1: 00000000a809da12 (&type->s_umount_key#52){+.+.}, at: grab_super+0xaf/0x2c0 [ 751.783803] 1 lock held by syz-executor010/7577: [ 751.788551] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.797381] 1 lock held by syz-executor010/7545: [ 751.802232] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.810939] 1 lock held by syz-executor010/7584: [ 751.815800] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.824620] 1 lock held by syz-executor010/7546: [ 751.829370] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.838182] 1 lock held by syz-executor010/7580: [ 751.843031] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.851849] 1 lock held by syz-executor010/7544: [ 751.856599] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.865428] 1 lock held by syz-executor010/7582: [ 751.870175] #0: 0000000081253a11 (&bdev->bd_fsfreeze_mutex){+.+.}, at: mount_bdev+0x93/0x3c0 [ 751.879818] [ 751.881546] ============================================= [ 751.881546] [ 751.888560] NMI backtrace for cpu 0 [ 751.892228] CPU: 0 PID: 1014 Comm: khungtaskd Not tainted 4.19.67 #41 [ 751.898972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 751.908320] Call Trace: [ 751.910962] dump_stack+0x172/0x1f0 [ 751.914593] nmi_cpu_backtrace.cold+0x63/0xa4 [ 751.919113] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 751.924044] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 751.929329] arch_trigger_cpumask_backtrace+0x14/0x20 [ 751.934521] watchdog+0x9df/0xee0 [ 751.938045] kthread+0x354/0x420 [ 751.941412] ? reset_hung_task_detector+0x30/0x30 [ 751.946261] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 751.951805] ret_from_fork+0x24/0x30 [ 751.955582] Sending NMI from CPU 0 to CPUs 1: [ 751.960855] NMI backtrace for cpu 1 [ 751.960861] CPU: 1 PID: 7539 Comm: syz-executor010 Not tainted 4.19.67 #41 [ 751.960867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 751.960871] RIP: 0010:mark_lock+0xbb/0x1370 [ 751.960882] Code: 89 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 61 0e 00 00 4c 85 6b 30 0f 84 c1 00 00 00 <41> bd 01 00 00 00 48 83 c4 20 44 89 e8 5b 41 5c 41 5d 41 5e 41 5f [ 751.960886] RSP: 0018:ffff888080db7550 EFLAGS: 00000002 [ 751.960894] RAX: dffffc0000000000 RBX: ffffffff89f0a9d0 RCX: 1ffff110139e51a4 [ 751.960899] RDX: 1ffffffff13e1540 RSI: ffff88809cf28d00 RDI: ffffffff89f0aa00 [ 751.960904] RBP: ffff888080db7598 R08: ffff88809cf28480 R09: ffff88809cf28d20 [ 751.960908] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809cf28d00 [ 751.960913] R13: 0000000000000004 R14: 0000000000000002 R15: ffff88809cf28480 [ 751.960919] FS: 00007f90742c5700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 751.960923] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 751.960928] CR2: 0000000000a3a218 CR3: 0000000080ccb000 CR4: 00000000001406e0 [ 751.960933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 751.960938] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 751.960941] Call Trace: [ 751.960944] ? __lock_is_held+0xb6/0x140 [ 751.960948] mark_held_locks+0xb1/0x100 [ 751.960951] ? __find_get_block+0x250/0xcf0 [ 751.960954] ? __getblk_gfp+0x1b1/0x970 [ 751.960958] ? __find_get_block+0x250/0xcf0 [ 751.960961] lockdep_hardirqs_on+0x19b/0x5d0 [ 751.960965] trace_hardirqs_on+0x67/0x220 [ 751.960968] __find_get_block+0x250/0xcf0 [ 751.960972] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 751.960976] __getblk_gfp+0x1b1/0x970 [ 751.960979] __bread_gfp+0x2f/0x300 [ 751.960982] udf_tread+0xf1/0x140 [ 751.960985] udf_read_tagged+0x50/0x530 [ 751.960989] udf_check_anchor_block+0x1ef/0x680 [ 751.960992] ? blkpg_ioctl+0xa90/0xa90 [ 751.960996] ? preempt_schedule_irq+0x140/0x140 [ 751.961000] ? udf_process_sequence+0x3e90/0x3e90 [ 751.961003] ? __wait_on_bit+0xb7/0x170 [ 751.961006] udf_scan_anchors+0x1cf/0x680 [ 751.961010] ? udf_check_anchor_block+0x680/0x680 [ 751.961015] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 751.961018] ? udf_get_last_block+0x167/0x1d0 [ 751.961022] ? udf_get_last_session+0x120/0x120 [ 751.961025] udf_load_vrs+0x67f/0xc80 [ 751.961029] ? udf_scan_anchors+0x680/0x680 [ 751.961033] ? __udf_add_aext.cold+0x7f/0x7f [ 751.961036] udf_fill_super+0x7cb/0x16f5 [ 751.961039] ? udf_load_vrs+0xc80/0xc80 [ 751.961043] ? vsprintf+0x40/0x40 [ 751.961046] ? set_blocksize+0x2bf/0x340 [ 751.961050] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 751.961054] mount_bdev+0x304/0x3c0 [ 751.961057] ? udf_load_vrs+0xc80/0xc80 [ 751.961060] udf_mount+0x35/0x40 [ 751.961063] mount_fs+0xa8/0x31f [ 751.961067] vfs_kern_mount.part.0+0x6f/0x410 [ 751.961070] do_mount+0x53e/0x2bc0 [ 751.961073] ? copy_mount_string+0x40/0x40 [ 751.961076] ? _copy_from_user+0xdd/0x150 [ 751.961080] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 751.961083] ? copy_mount_options+0x280/0x3a0 [ 751.961086] ksys_mount+0xdb/0x150 [ 751.961089] __x64_sys_mount+0xbe/0x150 [ 751.961091] do_syscall_64+0xfd/0x620 [ 751.961095] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 751.961098] RIP: 0033:0x44aa29 [ 751.961107] Code: 4d cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 751.961111] RSP: 002b:00007f90742c4ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 751.961118] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 000000000044aa29 [ 751.961123] RDX: 00000000200000c0 RSI: 0000000020000080 RDI: 00000000200001c0 [ 751.961127] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 751.961132] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 751.961136] R13: 00007ffed473a76f R14: 00007f90742c59c0 R15: 0000000000000000 [ 751.962138] Kernel panic - not syncing: hung_task: blocked tasks [ 752.347175] CPU: 0 PID: 1014 Comm: khungtaskd Not tainted 4.19.67 #41 [ 752.353744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 752.363089] Call Trace: [ 752.365682] dump_stack+0x172/0x1f0 [ 752.369379] panic+0x263/0x507 [ 752.372572] ? __warn_printk+0xf3/0xf3 [ 752.376459] ? lapic_can_unplug_cpu.cold+0x45/0x45 [ 752.381386] ? ___preempt_schedule+0x16/0x18 [ 752.385792] ? nmi_trigger_cpumask_backtrace+0x165/0x1f8 [ 752.391242] ? nmi_trigger_cpumask_backtrace+0x1c1/0x1f8 [ 752.396699] ? nmi_trigger_cpumask_backtrace+0x1cb/0x1f8 [ 752.402148] ? nmi_trigger_cpumask_backtrace+0x165/0x1f8 [ 752.407598] watchdog+0x9f0/0xee0 [ 752.411057] kthread+0x354/0x420 [ 752.414421] ? reset_hung_task_detector+0x30/0x30 [ 752.419274] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 752.424815] ret_from_fork+0x24/0x30 [ 752.430556] Kernel Offset: disabled [ 752.434185] Rebooting in 86400 seconds..