UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 INFO: task syz-executor334:7066 blocked for more than 140 seconds. UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env Not tainted 4.14.128 #22 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 4096 failed "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 syz-executor334 D29744 7066 7022 0x00000004 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 Call Trace: UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3383 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 schedule+0x92/0x1c0 kernel/sched/core.c:3427 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x5ce/0xb50 kernel/locking/rwsem-xadd.c:617 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:56 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: warning (device loop7): udf_load_vrs: No anchor found grab_super+0x5e/0x140 fs/super.c:373 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) sget_userns+0x2b0/0xc30 fs/super.c:504 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 sget+0xd6/0x120 fs/super.c:572 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 2048 failed mount_bdev+0xd5/0x370 fs/super.c:1107 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 udf_mount+0x35/0x40 fs/udf/super.c:132 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 mount_fs+0x97/0x2a1 fs/super.c:1237 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x417/0x27d0 fs/namespace.c:2879 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xab/0x120 fs/namespace.c:3072 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: Scanning with blocksize 4096 failed entry_SYSCALL_64_after_hwframe+0x42/0xb7 UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed RIP: 0033:0x44aeb9 RSP: 002b:00007ff0f1dbcce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044aeb9 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 4096 failed R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found R13: 00007ffd28ede05f R14: 00007ff0f1dbd9c0 R15: 0000000000000001 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 INFO: task syz-executor334:7109 blocked for more than 140 seconds. UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found Not tainted 4.14.128 #22 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 syz-executor334 D UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 29744 7109 7023 0x00000004 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 Call Trace: UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3383 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found schedule+0x92/0x1c0 kernel/sched/core.c:3427 UDF-fs: Scanning with blocksize 4096 failed __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x5ce/0xb50 kernel/locking/rwsem-xadd.c:617 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:56 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 grab_super+0x5e/0x140 fs/super.c:373 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) sget_userns+0x2b0/0xc30 fs/super.c:504 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' sget+0xd6/0x120 fs/super.c:572 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 mount_bdev+0xd5/0x370 fs/super.c:1107 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 udf_mount+0x35/0x40 fs/udf/super.c:132 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 mount_fs+0x97/0x2a1 fs/super.c:1237 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x417/0x27d0 fs/namespace.c:2879 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xab/0x120 fs/namespace.c:3072 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env UDF-fs: warning (device loop7): udf_load_vrs: No anchor found kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' entry_SYSCALL_64_after_hwframe+0x42/0xb7 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found RIP: 0033:0x44aeb9 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found RSP: 002b:00007ff0f1dbcce8 EFLAGS: 00000246 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 ORIG_RAX: 00000000000000a5 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044aeb9 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: Scanning with blocksize 512 failed kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 R13: 00007ffd28ede05f R14: 00007ff0f1dbd9c0 R15: 0000000000000001 INFO: task syz-executor334:7152 blocked for more than 140 seconds. UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed Not tainted 4.14.128 #22 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 syz-executor334 D UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 29744 7152 7024 0x00000004 Call Trace: kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env context_switch kernel/sched/core.c:2807 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3383 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed schedule+0x92/0x1c0 kernel/sched/core.c:3427 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x5ce/0xb50 kernel/locking/rwsem-xadd.c:617 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:56 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found print_req_error: 260 callbacks suppressed print_req_error: I/O error, dev loop11, sector 64 UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) print_req_error: I/O error, dev loop11, sector 1024 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop9, sector 64 grab_super+0x5e/0x140 fs/super.c:373 print_req_error: I/O error, dev loop9, sector 256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) print_req_error: I/O error, dev loop11, sector 2048 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' print_req_error: I/O error, dev loop9, sector 512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 sget_userns+0x2b0/0xc30 fs/super.c:504 UDF-fs: Scanning with blocksize 2048 failed print_req_error: I/O error, dev loop7, sector 64 print_req_error: I/O error, dev loop7, sector 256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop11, sector 64 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found print_req_error: I/O error, dev loop11, sector 2048 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 sget+0xd6/0x120 fs/super.c:572 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 4096 failed mount_bdev+0xd5/0x370 fs/super.c:1107 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: warning (device loop9): udf_load_vrs: No anchor found udf_mount+0x35/0x40 fs/udf/super.c:132 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 mount_fs+0x97/0x2a1 fs/super.c:1237 kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env vfs_kern_mount.part.0+0x5e/0x3d0 fs/namespace.c:1046 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x417/0x27d0 fs/namespace.c:2879 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 SYSC_mount fs/namespace.c:3095 [inline] SyS_mount+0xab/0x120 fs/namespace.c:3072 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 entry_SYSCALL_64_after_hwframe+0x42/0xb7 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found RIP: 0033:0x44aeb9 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed RSP: 002b:00007ff0f1dbcce8 EFLAGS: 00000246 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 ORIG_RAX: 00000000000000a5 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found RAX: ffffffffffffffda RBX: 00000000006dcc48 RCX: 000000000044aeb9 UDF-fs: Scanning with blocksize 4096 failed kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) RDX: 0000000020000140 RSI: 0000000020000180 RDI: 00000000200000c0 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed RBP: 00000000006dcc40 R08: 0000000000000000 R09: 0000000000000000 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc4c UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' R13: 00007ffd28ede05f R14: 00007ff0f1dbd9c0 R15: 0000000000000001 Showing all locks held in the system: UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: warning (device loop9): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 1 lock held by khungtaskd/1009: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4541 1 lock held by rsyslogd/6873: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xab/0xd0 fs/file.c:769 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 2 locks held by getty/6995: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found 2 locks held by getty/6996: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 2 locks held by getty/6997: UDF-fs: Scanning with blocksize 512 failed #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/6998: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/6999: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7000: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by getty/7002: #0: (&tty->ldisc_sem){++++}, at: [] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156 2 locks held by syz-executor334/7066: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x76/0x370 fs/super.c:1101 #1: (&type->s_umount_key#52){+.+.}, at: [] grab_super+0x5e/0x140 fs/super.c:373 2 locks held by syz-executor334/7109: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x76/0x370 fs/super.c:1101 #1: (&type->s_umount_key#52){+.+.}, at: [] grab_super+0x5e/0x140 fs/super.c:373 2 locks held by syz-executor334/7152: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x76/0x370 fs/super.c:1101 #1: (&type->s_umount_key#52){+.+.}, at: [] grab_super+0x5e/0x140 fs/super.c:373 2 locks held by syz-executor334/11050: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [] mount_bdev+0x76/0x370 fs/super.c:1101 #1: (&type->s_umount_key#52){+.+.}, at: [] grab_super+0x5e/0x140 fs/super.c:373 1 lock held by syz-executor334/11054: #0: (&lo->lo_ctl_mutex/1){+.+.}, at: [] lo_ioctl+0x8f/0x1ce0 drivers/block/loop.c:1404 ============================================= UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env UDF-fs: Scanning with blocksize 1024 failed kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed kobject: 'loop4' (ffff8880a4a192e0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a192e0): fill_kobj_path: path = '/devices/virtual/block/loop4' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 4096 failed kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 kobject: 'loop3' (ffff8880a49bf260): kobject_uevent_env UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 512 failed kobject: 'loop3' (ffff8880a49bf260): fill_kobj_path: path = '/devices/virtual/block/loop3' UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed NMI backtrace for cpu 0 kobject: 'loop5' (ffff8880a4a62220): kobject_uevent_env CPU: 0 PID: 1009 Comm: khungtaskd Not tainted 4.14.128 #22 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x19c lib/dump_stack.c:53 nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101 kobject: 'loop5' (ffff8880a4a62220): fill_kobj_path: path = '/devices/virtual/block/loop5' nmi_trigger_cpumask_backtrace+0x141/0x189 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5e7/0xb90 kernel/hung_task.c:274 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3523 Comm: udevd Not tainted 4.14.128 #22 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888097ebc380 task.stack: ffff888097ec0000 RIP: 0010:_raw_read_unlock_irqrestore+0xb0/0xe0 kernel/locking/spinlock.c:265 RSP: 0018:ffff8880aef07c80 EFLAGS: 00000002 RAX: 0000000000000102 RBX: ffffffff89bc29a0 RCX: 0000000000000000 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8880aef07c88 R08: ffff888097ebc380 R09: 0000000000000005 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff87eb8220 R13: 0000000000000086 R14: ffff8880aef239c0 R15: 0000000000000001 FS: 00007f0e963747a0(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001ddaff8 CR3: 0000000097dff000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mISDN_clock_get+0x5d/0x70 drivers/isdn/mISDN/clock.c:203 dsp_cmx_send+0xd9f/0x1430 drivers/isdn/mISDN/dsp_cmx.c:1650 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1634 [inline] __run_timers kernel/time/timer.c:1602 [inline] run_timer_softirq+0x5b4/0x1570 kernel/time/timer.c:1647 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1064 apic_timer_interrupt+0x8e/0xa0 arch/x86/entry/entry_64.S:789 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1679 [inline] RIP: 0010:vprintk_emit kernel/printk/printk.c:1916 [inline] RIP: 0010:vprintk_emit+0x524/0x600 kernel/printk/printk.c:1882 RSP: 0018:ffff888097ec7918 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff10 RAX: ffff888097ebc380 RBX: 1ffffffff0ee29f1 RCX: 1ffff11012fd798e RDX: 0000000000000000 RSI: ffff888097ebcc50 RDI: 0000000000000297 RBP: ffff888097ec7958 R08: ffff888097ebc380 R09: ffff888097ebcc70 R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000005a R13: 0000000000000297 R14: ffff8880a879a500 R15: 0000000000000000 vprintk_default+0x28/0x30 kernel/printk/printk.c:1957 vprintk_func+0x5d/0x159 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1990 fill_kobj_path lib/kobject.c:134 [inline] kobject_get_path.cold+0x38/0x47 lib/kobject.c:157 kobject_uevent_env+0x39c/0xc23 lib/kobject_uevent.c:402 kobject_synth_uevent.cold+0x7d/0xcd lib/kobject_uevent.c:205 uevent_store+0x26/0x70 drivers/base/core.c:996 dev_attr_store+0x59/0x80 drivers/base/core.c:714 sysfs_kf_write+0x10c/0x160 fs/sysfs/file.c:141 kernfs_fop_write+0x291/0x450 fs/kernfs/file.c:316 __vfs_write+0x105/0x6b0 fs/read_write.c:480 vfs_write+0x198/0x500 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xfd/0x230 fs/read_write.c:582 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f0e95a7c370 RSP: 002b:00007ffdc7f2faf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000001de1720 RCX: 00007f0e95a7c370 RDX: 0000000000000006 RSI: 000000000041f4f9 RDI: 000000000000000b RBP: 0000000001dc74f0 R08: 000000000041f4f1 R09: 00007f0e95ad27d0 R10: 7269762f73656369 R11: 0000000000000246 R12: 000000000000000b R13: 0000000000000000 R14: 0000000001de1720 R15: 0000000001d91030 Code: 39 48 83 3d 6a f0 56 01 00 74 24 48 89 df 57 9d 0f 1f 44 00 00 bf 01 00 00 00 e8 0c 3d 25 fb 65 8b 05 95 8e e7 79 85 c0 74 09 5b <41> 5c 5d c3 0f 0b 0f 0b e8 1f e3 e5 fa eb f0 48 c7 c7 88 4f 71 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256