INFO: task hung in grab

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
android-414	INFO: task hung in grab_super			4	1999d	1837d	0/1	auto-closed as invalid on 2019/04/28 15:34
android-414	INFO: task hung in grab_super (2)			2	1738d	1759d	0/1	auto-closed as invalid on 2019/11/15 12:55
android-49	INFO: task hung in grab_super			1	2076d	2076d	0/3	auto-closed as invalid on 2019/02/22 13:19
linux-5.15	INFO: task hung in grab_super			1	19d	19d	0/3	upstream: reported on 2024/04/01 06:22
upstream	INFO: task hung in grab_super udf	C		209	454d	2103d	0/26	closed as dup on 2018/07/18 11:42
linux-6.1	INFO: task hung in grab_super			1	14d	14d	0/3	upstream: reported on 2024/04/06 01:06
linux-4.19	INFO: task hung in grab_super vfs udf	C	error	249	435d	1829d	0/1	upstream: reported C repro on 2019/04/18 03:33
upstream	INFO: task hung in grab_super (2) fs			1	318d	318d	0/26	auto-obsoleted due to no activity on 2023/09/05 02:19
android-49	INFO: task hung in grab_super (2)			1	1704d	1704d	0/3	auto-closed as invalid on 2019/12/19 00:51

android-414

INFO: task hung in grab_super

1999d

1837d

0/1

auto-closed as invalid on 2019/04/28 15:34

android-414

INFO: task hung in grab_super (2)

1738d

1759d

0/1

auto-closed as invalid on 2019/11/15 12:55

android-49

INFO: task hung in grab_super

2076d

0/3

auto-closed as invalid on 2019/02/22 13:19

linux-5.15

INFO: task hung in grab_super

19d

0/3

upstream: reported on 2024/04/01 06:22

upstream

INFO: task hung in grab_super udf

209

454d

2103d

0/26

closed as dup on 2018/07/18 11:42

linux-6.1

INFO: task hung in grab_super

14d

0/3

upstream: reported on 2024/04/06 01:06

linux-4.19

INFO: task hung in grab_super vfs udf

error

249

435d

1829d

0/1

upstream: reported C repro on 2019/04/18 03:33

upstream

INFO: task hung in grab_super (2) fs

318d

0/26

auto-obsoleted due to no activity on 2023/09/05 02:19

android-49

INFO: task hung in grab_super (2)

1704d

0/3

auto-closed as invalid on 2019/12/19 00:51


Created	Duration	User	Repo	Result
2022/05/05 20:15	11m	bisect fix	linux-4.14.y	error job log (0)
2022/04/05 19:53	21m	bisect fix	linux-4.14.y	job log (0) log
2022/03/06 19:22	22m	bisect fix	linux-4.14.y	job log (0) log
2022/02/04 18:53	28m	bisect fix	linux-4.14.y	job log (0) log
2022/01/05 17:48	28m	bisect fix	linux-4.14.y	job log (0) log
2021/11/15 17:33	22m	bisect fix	linux-4.14.y	job log (0) log
2021/10/08 20:53	27m	bisect fix	linux-4.14.y	job log (0) log
2021/09/08 20:20	32m	bisect fix	linux-4.14.y	job log (0) log
2021/08/09 19:48	32m	bisect fix	linux-4.14.y	job log (0) log
2021/07/10 19:22	25m	bisect fix	linux-4.14.y	job log (0) log
2021/06/10 18:51	30m	bisect fix	linux-4.14.y	job log (0) log
2020/12/13 19:55	37m	bisect fix	linux-4.14.y	job log (0) log
2020/10/09 02:37	41m	bisect fix	linux-4.14.y	job log (0) log

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=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 4096 failed INFO: task syz-executor401:8019 blocked for more than 140 seconds. UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 Not tainted 4.14.250-syzkaller #0 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed 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 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 syz-executor401 D29920 8019 7975 0x00000004 UDF-fs: Scanning with blocksize 2048 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 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found 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=256, location=256 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 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: Scanning with blocksize 4096 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed print_req_error: 273 callbacks suppressed print_req_error: I/O error, dev loop11, sector 64 print_req_error: I/O error, dev loop11, sector 512 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 print_req_error: I/O error, dev loop7, sector 64 print_req_error: I/O error, dev loop7, sector 512 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed print_req_error: I/O error, dev loop11, sector 1024 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 schedule+0x8d/0x1b0 kernel/sched/core.c:3428 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found print_req_error: I/O error, dev loop7, sector 1024 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: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed print_req_error: I/O error, dev loop7, sector 64 UDF-fs: Scanning with blocksize 4096 failed print_req_error: I/O error, dev loop9, sector 64 print_req_error: I/O error, dev loop9, sector 256 UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617 print_req_error: I/O error, dev loop7, sector 1024 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 loop9): 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 loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop7): udf_load_vrs: No anchor found __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 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 loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed grab_super+0x55/0x140 fs/super.c:373 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 sget_userns+0x2b1/0xc10 fs/super.c:504 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 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: 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 4096 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 2048 failed sget+0xd1/0x110 fs/super.c:572 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found mount_bdev+0xcd/0x360 fs/super.c:1107 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 mount_fs+0x92/0x2a0 fs/super.c:1237 UDF-fs: Scanning with blocksize 512 failed vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a10 fs/namespace.c:2902 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 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop7): 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: error (device loop7): 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: Scanning with blocksize 2048 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found 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: Scanning with blocksize 2048 failed 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 SYSC_mount fs/namespace.c:3118 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3095 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 entry_SYSCALL_64_after_hwframe+0x46/0xbb UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 RIP: 0033:0x7ff2c3f38bc9 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 loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 RSP: 002b:00007ff2c3ea3208 EFLAGS: 00000246 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed ORIG_RAX: 00000000000000a5 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: error (device loop9): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 2048 failed RAX: ffffffffffffffda RBX: 00007ff2c3fbd4c8 RCX: 00007ff2c3f38bc9 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed 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 RDX: 0000000020000180 RSI: 0000000020000080 RDI: 0000000020000100 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 RBP: 00007ff2c3fbd4c0 R08: 0000000000000000 R09: 0000000000000000 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff2c3fbd4cc 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: Scanning with blocksize 2048 failed 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=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 4096 failed 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: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed 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 loop9): udf_read_tagged: read failed, block=256, location=256 R13: 00007ffd82eb791f R14: 00007ff2c3ea3300 R15: 0000000000022000 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 4096 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found INFO: task syz-executor401:8285 blocked for more than 140 seconds. 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: Scanning with blocksize 2048 failed Not tainted 4.14.250-syzkaller #0 UDF-fs: Scanning with blocksize 1024 failed "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. UDF-fs: warning (device loop1): udf_load_vrs: No VRS found 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: Scanning with blocksize 2048 failed syz-executor401 D29920 8285 7976 0x00000004 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_load_vrs: No anchor found Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3384 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: Scanning with blocksize 4096 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_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 schedule+0x8d/0x1b0 kernel/sched/core.c:3428 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline] rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found 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 loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop7): 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 __down_write arch/x86/include/asm/rwsem.h:126 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:56 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: error (device loop9): udf_read_tagged: read failed, block=256, location=256 grab_super+0x55/0x140 fs/super.c:373 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 1024 failed sget_userns+0x2b1/0xc10 fs/super.c:504 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: warning (device loop1): udf_load_vrs: No VRS 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 2048 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found sget+0xd1/0x110 fs/super.c:572 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: error (device loop7): udf_read_tagged: read failed, block=256, location=256 mount_bdev+0xcd/0x360 fs/super.c:1107 UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 mount_fs+0x92/0x2a0 fs/super.c:1237 UDF-fs: error (device loop9): 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 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 UDF-fs: warning (device loop1): udf_load_vrs: No VRS 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 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a10 fs/namespace.c:2902 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS 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 UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed 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=256, location=256 UDF-fs: warning (device loop11): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 4096 failed SYSC_mount fs/namespace.c:3118 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3095 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 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found entry_SYSCALL_64_after_hwframe+0x46/0xbb UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 RIP: 0033:0x7ff2c3f38bc9 UDF-fs: Scanning with blocksize 2048 failed RSP: 002b:00007ff2c3ea3208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 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 RAX: ffffffffffffffda RBX: 00007ff2c3fbd4c8 RCX: 00007ff2c3f38bc9 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 RDX: 0000000020000180 RSI: 0000000020000080 RDI: 0000000020000100 UDF-fs: Scanning with blocksize 2048 failed 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 RBP: 00007ff2c3fbd4c0 R08: 0000000000000000 R09: 0000000000000000 UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff2c3fbd4cc 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: warning (device loop9): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 1024 failed R13: 00007ffd82eb791f R14: 00007ff2c3ea3300 R15: 0000000000022000 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 loop9): udf_read_tagged: read failed, block=256, location=256 Showing all locks held in the system: UDF-fs: warning (device loop1): udf_load_vrs: No VRS found 1 lock held by khungtaskd/1533: #0: (tasklist_lock){.+.+}, at: [<ffffffff87016cbc>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 1 lock held by in:imklog/7685: #0: (&f->f_pos_lock){+.+.}, at: [<ffffffff818d52db>] __fdget_pos+0x1fb/0x2b0 fs/file.c:769 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 2 locks held by syz-executor401/8019: #0: (&bdev->bd_fsfreeze_mutex){+.+.} UDF-fs: error (device loop9): udf_read_tagged: read failed, block=512, location=512 , at: [<ffffffff81876081>] mount_bdev+0x71/0x360 fs/super.c:1101 #1: (&type->s_umount_key#47){+.+.}, at: [<ffffffff81875115>] grab_super+0x55/0x140 fs/super.c:373 2 locks held by syz-executor401/8285: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [<ffffffff81876081>] mount_bdev+0x71/0x360 fs/super.c:1101 #1: (&type->s_umount_key#47){+.+.}, at: [<ffffffff81875115>] grab_super+0x55/0x140 fs/super.c:373 2 locks held by syz-executor401/19597: #0: (&bdev->bd_fsfreeze_mutex){+.+.}, at: [<ffffffff81876081>] mount_bdev+0x71/0x360 fs/super.c:1101 #1: (&type->s_umount_key#47){+.+.}, at: [<ffffffff81875115>] grab_super+0x55/0x140 fs/super.c:373 ============================================= UDF-fs: Scanning with blocksize 2048 failed UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 4096 failed UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop7): 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: 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: Scanning with blocksize 512 failed 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 loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found 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 loop7): 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: warning (device loop9): udf_load_vrs: No anchor found NMI backtrace for cpu 0 UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 CPU: 0 PID: 1533 Comm: khungtaskd Not tainted 4.14.250-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 UDF-fs: Scanning with blocksize 1024 failed Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 UDF-fs: warning (device loop11): udf_load_vrs: No anchor found nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 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: 7967 Comm: kworker/1:0 Not tainted 4.14.250-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_long gc_worker task: ffff8880aa8dc340 task.stack: ffff8880b3180000 RIP: 0010:__sanitizer_cov_trace_pc+0x23/0x50 kernel/kcov.c:68 RSP: 0018:ffff8880b3187c88 EFLAGS: 00000246 RAX: ffff8880aa8dc340 RBX: 0000000000011895 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff87ccef40 RDI: ffffffff87ccef80 RBP: ffffffff87ccef80 R08: ffffffff8b9cacc0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: ffffffff87ccef40 R14: 0000000000010000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f32d8003400 CR3: 00000000ab6d7000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_preemption_disabled+0x30/0x240 lib/smp_processor_id.c:26 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:360 [inline] rcu_is_watching+0x11/0xb0 kernel/rcu/tree.c:1130 rcu_read_unlock include/linux/rcupdate.h:681 [inline] gc_worker+0x90b/0xb50 net/netfilter/nf_conntrack_core.c:1128 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 Code: 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 df 01 00 48 85 c0 74 1a 65 8b 15 bb a2 ac 7e 81 e2 00 01 1f 00 75 0b 8b 90 58 13 00 00 <83> fa 01 74 01 c3 48 8b 34 24 48 8b 88 60 13 00 00 8b 80 5c 13 UDF-fs: warning (device loop7): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 2048 failed 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=256, location=256 UDF-fs: error (device loop7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop1): udf_load_vrs: No VRS 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 4096 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=256, location=256 UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop11): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop7): udf_fill_super: No partition found (1) UDF-fs: warning (device loop9): udf_load_vrs: No anchor found UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop11): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 4096 failed ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 65 48 8b 04 25 c0 df mov %gs:0x1dfc0,%rax f: 01 00 11: 48 85 c0 test %rax,%rax 14: 74 1a je 0x30 16: 65 8b 15 bb a2 ac 7e mov %gs:0x7eaca2bb(%rip),%edx # 0x7eaca2d8 1d: 81 e2 00 01 1f 00 and $0x1f0100,%edx 23: 75 0b jne 0x30 25: 8b 90 58 13 00 00 mov 0x1358(%rax),%edx * 2b: 83 fa 01 cmp $0x1,%edx <-- trapping instruction 2e: 74 01 je 0x31 30: c3 retq 31: 48 8b 34 24 mov (%rsp),%rsi 35: 48 8b 88 60 13 00 00 mov 0x1360(%rax),%rcx 3c: 8b .byte 0x8b 3d: 80 .byte 0x80 3e: 5c pop %rsp 3f: 13 .byte 0x13

Crashes (241):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2021/10/16 16:50	linux-4.14.y	ed99bf0e81b5	0c5d9412	.config	console log	report	syz	C			ci2-linux-4-14	INFO: task hung in grab_super
2021/04/25 13:39	linux-4.14.y	cf256fbcbe34	36c88236	.config	console log	report	syz	C			ci2-linux-4-14	INFO: task hung in grab_super
2020/12/27 08:27	linux-4.14.y	3f2ecb86cb90	821e0b09	.config	console log	report	syz	C			ci2-linux-4-14
2020/12/25 02:46	linux-4.14.y	3f2ecb86cb90	c2c1d1dd	.config	console log	report	syz	C			ci2-linux-4-14
2019/10/29 19:53	linux-4.14.y	ddef1e8e3f6e	5ea87a66	.config	console log	report	syz	C			ci2-linux-4-14
2019/08/22 09:54	linux-4.14.y	45f092f9e9cb	4ea67ff8	.config	console log	report	syz	C			ci2-linux-4-14
2019/06/21 19:41	linux-4.14.y	bb263a2a2d43	34bf9440	.config	console log	report	syz	C			ci2-linux-4-14
2019/04/29 23:23	linux-4.14.y	fa5941f45d7e	b617407b	.config	console log	report	syz	C			ci2-linux-4-14
2022/11/25 04:04	linux-4.14.y	e911713e40ca	74a66371	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-4-14	INFO: task hung in grab_super
2022/09/28 03:55	linux-4.14.y	4edbf74132a4	75c78242	.config	console log	report			info	[disk image] [vmlinux]	ci2-linux-4-14	INFO: task hung in grab_super
2021/12/06 17:48	linux-4.14.y	66722c42ec91	579a8754	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/12/05 09:19	linux-4.14.y	66722c42ec91	a617004c	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/12/04 18:13	linux-4.14.y	66722c42ec91	a617004c	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/05/11 18:44	linux-4.14.y	7d7d1c0ab3eb	b3c3bb8e	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/05/10 03:04	linux-4.14.y	7d7d1c0ab3eb	bc5434be	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/05/07 22:06	linux-4.14.y	7d7d1c0ab3eb	bc5434be	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/05/01 14:45	linux-4.14.y	7d7d1c0ab3eb	77e2b668	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/28 01:34	linux-4.14.y	cf256fbcbe34	805b5003	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/24 14:13	linux-4.14.y	cf256fbcbe34	17f0b706	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/22 18:36	linux-4.14.y	cf256fbcbe34	33c28d03	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/12 22:01	linux-4.14.y	958e517f4e16	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/09 23:34	linux-4.14.y	0cc244011f40	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/08 17:22	linux-4.14.y	0cc244011f40	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/08 13:40	linux-4.14.y	0cc244011f40	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/08 12:09	linux-4.14.y	0cc244011f40	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/04/06 12:07	linux-4.14.y	bd634aa64163	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/31 07:45	linux-4.14.y	bd634aa64163	6a81331a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/16 14:23	linux-4.14.y	c7150cd2fa8c	fdb2bb2c	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/14 08:00	linux-4.14.y	c7150cd2fa8c	4a003785	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/12 13:35	linux-4.14.y	c7150cd2fa8c	429d8a6b	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/11 04:58	linux-4.14.y	1d177c0872ab	c2ca1f2a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/10 18:41	linux-4.14.y	1d177c0872ab	764067f3	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/03/02 08:46	linux-4.14.y	3242aa3a635c	92ead296	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/02/18 08:01	linux-4.14.y	2c8a3fceddf0	14052202	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/02/17 18:00	linux-4.14.y	2c8a3fceddf0	052f8d9f	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/02/11 11:13	linux-4.14.y	2c8a3fceddf0	a52ee10a	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/30 18:29	linux-4.14.y	2c8a3fceddf0	fc9fd31e	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/30 12:16	linux-4.14.y	2d2791fce891	fc9fd31e	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/30 02:46	linux-4.14.y	2d2791fce891	fc9fd31e	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/28 00:59	linux-4.14.y	2d2791fce891	a57db36f	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/27 18:40	linux-4.14.y	2d2791fce891	a57db36f	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/27 15:10	linux-4.14.y	2d2791fce891	a0ebf917	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/24 22:40	linux-4.14.y	2d2791fce891	52e37319	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/23 20:02	linux-4.14.y	2d2791fce891	52e37319	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/19 02:29	linux-4.14.y	2762b48e9611	63631df1	.config	console log	report			info		ci2-linux-4-14	INFO: task hung in grab_super
2021/01/14 15:23	linux-4.14.y	f79dc86058bc	468dbb55	.config	console log	report			info		ci2-linux-4-14
2021/01/04 06:55	linux-4.14.y	1752938529c6	79264ae3	.config	console log	report			info		ci2-linux-4-14
2021/01/03 19:48	linux-4.14.y	1752938529c6	79264ae3	.config	console log	report			info		ci2-linux-4-14
2021/01/02 06:54	linux-4.14.y	1752938529c6	79264ae3	.config	console log	report			info		ci2-linux-4-14
2020/12/23 08:31	linux-4.14.y	3f2ecb86cb90	04201c06	.config	console log	report			info		ci2-linux-4-14
2020/12/22 13:51	linux-4.14.y	3f2ecb86cb90	04201c06	.config	console log	report			info		ci2-linux-4-14
2019/04/19 11:36	linux-4.14.y	58b454ebf81e	b0e8efcb	.config	console log	report					ci2-linux-4-14

Crashes (241):

Assets (help?)

2021/10/16 16:50

linux-4.14.y