device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
INFO: task syz-executor0:9141 blocked for more than 140 seconds.
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
Not tainted 5.0.0-rc2+ #30
__find_get_block_slow() failed. block=1, b_blocknr=8
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
syz-executor0 D27144 9141 8448 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
schedule+0xfe/0x350 kernel/sched/core.c:3516
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
__rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:577
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
device loop0 blocksize: 4096
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0xa5/0x130 kernel/locking/rwsem.c:72
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
inode_lock include/linux/fs.h:757 [inline]
do_last fs/namei.c:3321 [inline]
path_openat+0x1967/0x5650 fs/namei.c:3534
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
do_filp_open+0x26f/0x370 fs/namei.c:3564
do_sys_open+0x59a/0x7c0 fs/open.c:1063
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
__do_sys_open fs/open.c:1081 [inline]
__se_sys_open fs/open.c:1076 [inline]
__x64_sys_open+0x7e/0xc0 fs/open.c:1076
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
device loop0 blocksize: 4096
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
__find_get_block_slow() failed. block=1, b_blocknr=8
RSP: 002b:00007f150c94bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099
RDX: 0000000000000000 RSI: 00000000000001fe RDI: 0000000020000080
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f150c94c6d4
R13: 00000000004f4bff R14: 00000000004d7108 R15: 00000000ffffffff
INFO: task syz-executor0:9181 blocked for more than 140 seconds.
b_state=0x00000021, b_size=512
Not tainted 5.0.0-rc2+ #30
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0 D27576 9181 8448 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
device loop0 blocksize: 4096
schedule+0xfe/0x350 kernel/sched/core.c:3516
__find_get_block_slow() failed. block=1, b_blocknr=8
__rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:577
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
b_state=0x00000021, b_size=512
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0xa5/0x130 kernel/locking/rwsem.c:72
device loop0 blocksize: 4096
inode_lock include/linux/fs.h:757 [inline]
generic_file_write_iter+0xe5/0x6a0 mm/filemap.c:3358
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
call_write_iter include/linux/fs.h:1862 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x764/0xb40 fs/read_write.c:487
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
vfs_write+0x20c/0x580 fs/read_write.c:549
ksys_write+0x105/0x260 fs/read_write.c:598
device loop0 blocksize: 4096
__do_sys_write fs/read_write.c:610 [inline]
__se_sys_write fs/read_write.c:607 [inline]
__x64_sys_write+0x73/0xb0 fs/read_write.c:607
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
__find_get_block_slow() failed. block=1, b_blocknr=8
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f150c92ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099
RDX: 000000000000002e RSI: 0000000020000100 RDI: 0000000000000006
RBP: 000000000073c0e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f150c92b6d4
R13: 00000000004c734d R14: 00000000004dcc28 R15: 00000000ffffffff
INFO: task syz-executor0:9187 blocked for more than 140 seconds.
Not tainted 5.0.0-rc2+ #30
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0 D27576 9187 8448 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
schedule+0xfe/0x350 kernel/sched/core.c:3516
__rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:577
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
b_state=0x00000021, b_size=512
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write_nested+0xa9/0x130 kernel/locking/rwsem.c:195
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
inode_lock_nested include/linux/fs.h:792 [inline]
filename_create+0x1a8/0x5a0 fs/namei.c:3635
user_path_create fs/namei.c:3693 [inline]
do_mkdirat+0xcf/0x2f0 fs/namei.c:3831
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__do_sys_mkdir fs/namei.c:3855 [inline]
__se_sys_mkdir fs/namei.c:3853 [inline]
__x64_sys_mkdir+0x5c/0x80 fs/namei.c:3853
__find_get_block_slow() failed. block=1, b_blocknr=8
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
entry_SYSCALL_64_after_hwframe+0x49/0xbe
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
RIP: 0033:0x458099
b_state=0x00000021, b_size=512
Code: Bad RIP value.
device loop0 blocksize: 4096
RSP: 002b:00007f150c909c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
__find_get_block_slow() failed. block=1, b_blocknr=8
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000000000458099
b_state=0x00000021, b_size=512
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020001540
device loop0 blocksize: 4096
RBP: 000000000073c180 R08: 0000000000000000 R09: 0000000000000000
__find_get_block_slow() failed. block=1, b_blocknr=8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f150c90a6d4
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
R13: 00000000004bd827 R14: 00000000004d6bf8 R15: 00000000ffffffff
b_state=0x00000021, b_size=512
INFO: task syz-executor0:9188 blocked for more than 140 seconds.
device loop0 blocksize: 4096
Not tainted 5.0.0-rc2+ #30
__find_get_block_slow() failed. block=1, b_blocknr=8
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
syz-executor0 D24040 9188 8448 0x80000004
b_state=0x00000021, b_size=512
Call Trace:
device loop0 blocksize: 4096
context_switch kernel/sched/core.c:2831 [inline]
__schedule+0x897/0x1e60 kernel/sched/core.c:3472
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
schedule+0xfe/0x350 kernel/sched/core.c:3516
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
__rwsem_down_write_failed_common+0xa4d/0x1620 kernel/locking/rwsem-xadd.c:577
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
rwsem_down_write_failed+0xe/0x10 kernel/locking/rwsem-xadd.c:606
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117
b_state=0x00000021, b_size=512
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write+0xa5/0x130 kernel/locking/rwsem.c:72
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
inode_lock include/linux/fs.h:757 [inline]
generic_file_write_iter+0xe5/0x6a0 mm/filemap.c:3358
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
call_write_iter include/linux/fs.h:1862 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x764/0xb40 fs/read_write.c:487
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
__kernel_write+0x110/0x3b0 fs/read_write.c:506
device loop0 blocksize: 4096
write_pipe_buf+0x180/0x240 fs/splice.c:797
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
splice_from_pipe_feed fs/splice.c:503 [inline]
__splice_from_pipe+0x39a/0x7e0 fs/splice.c:627
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
splice_from_pipe+0x1ea/0x310 fs/splice.c:662
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
default_file_splice_write+0x3c/0x90 fs/splice.c:809
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
do_splice_from fs/splice.c:851 [inline]
direct_splice_actor+0x126/0x1a0 fs/splice.c:1023
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
splice_direct_to_actor+0x3be/0x9d0 fs/splice.c:978
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
do_splice_direct+0x2c7/0x420 fs/splice.c:1066
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
do_sendfile+0x61a/0xe60 fs/read_write.c:1436
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__do_sys_sendfile64 fs/read_write.c:1491 [inline]
__se_sys_sendfile64 fs/read_write.c:1483 [inline]
__x64_sys_sendfile64+0x15a/0x240 fs/read_write.c:1483
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
entry_SYSCALL_64_after_hwframe+0x49/0xbe
device loop0 blocksize: 4096
RIP: 0033:0x458099
__find_get_block_slow() failed. block=1, b_blocknr=8
Code: Bad RIP value.
b_state=0x00000021, b_size=512
RSP: 002b:00007f150c8e8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
device loop0 blocksize: 4096
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458099
__find_get_block_slow() failed. block=1, b_blocknr=8
RDX: 0000000020000000 RSI: 0000000000000006 RDI: 0000000000000006
b_state=0x00000021, b_size=512
RBP: 000000000073c220 R08: 0000000000000000 R09: 0000000000000000
device loop0 blocksize: 4096
R10: 00008080fffffffe R11: 0000000000000246 R12: 00007f150c8e96d4
R13: 00000000004c4f73 R14: 00000000004d8a28 R15: 00000000ffffffff
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
Showing all locks held in the system:
b_state=0x00000021, b_size=512
1 lock held by khungtaskd/1040:
device loop0 blocksize: 4096
#0: 00000000bcd87c42 (rcu_read_lock){....}, at: debug_show_all_locks+0xc6/0x41d kernel/locking/lockdep.c:4389
__find_get_block_slow() failed. block=1, b_blocknr=8
1 lock held by rsyslogd/8285:
b_state=0x00000021, b_size=512
#0: 0000000076a3a336 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795
device loop0 blocksize: 4096
2 locks held by getty/8407:
#0: 000000004ca49d1a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
__find_get_block_slow() failed. block=1, b_blocknr=8
#1: 000000006d259d71 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
b_state=0x00000021, b_size=512
2 locks held by getty/8408:
device loop0 blocksize: 4096
#0: 00000000c75f7ab2 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000007d46b8fe (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/8409:
#0: 0000000022ed3b2a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000001e7c6736 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/8410:
#0: 000000007584376e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 000000003359136b (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
2 locks held by getty/8411:
#0: 00000000d089aa40 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
__find_get_block_slow() failed. block=1, b_blocknr=8
#1: 0000000062e4c521 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
b_state=0x00000021, b_size=512
2 locks held by getty/8412:
device loop0 blocksize: 4096
#0: 000000005ba3dd53 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
#1: 00000000fc236b8f (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
__find_get_block_slow() failed. block=1, b_blocknr=8
2 locks held by getty/8413:
b_state=0x00000021, b_size=512
#0: 00000000eafb09bb (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:341
device loop0 blocksize: 4096
#1: 000000009f2bc975 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x30a/0x1eb0 drivers/tty/n_tty.c:2154
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
2 locks held by syz-executor0/9128:
b_state=0x00000021, b_size=512
7 locks held by syz-executor0/9138:
device loop0 blocksize: 4096
1 lock held by syz-executor0/9141:
#0: 000000006e82fb5b (&sb->s_type->i_mutex_key#21){++++}, at: inode_lock include/linux/fs.h:757 [inline]
#0: 000000006e82fb5b (&sb->s_type->i_mutex_key#21){++++}, at: do_last fs/namei.c:3321 [inline]
#0: 000000006e82fb5b (&sb->s_type->i_mutex_key#21){++++}, at: path_openat+0x1967/0x5650 fs/namei.c:3534
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
3 locks held by syz-executor0/9181:
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
#0: 0000000088ef4406 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x1b3/0x1f0 fs/file.c:795
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
#1: 00000000411c9b31 (sb_writers#14){.+.+}, at: file_start_write include/linux/fs.h:2815 [inline]
#1: 00000000411c9b31 (sb_writers#14){.+.+}, at: vfs_write+0x429/0x580 fs/read_write.c:548
__find_get_block_slow() failed. block=1, b_blocknr=8
#2: 000000008d110738 (&sb->s_type->i_mutex_key#21){++++}, at: inode_lock include/linux/fs.h:757 [inline]
#2: 000000008d110738 (&sb->s_type->i_mutex_key#21){++++}, at: generic_file_write_iter+0xe5/0x6a0 mm/filemap.c:3358
1 lock held by syz-executor0/9187:
#0: 000000006e82fb5b (&sb->s_type->i_mutex_key#21/1){+.+.}, at: inode_lock_nested include/linux/fs.h:792 [inline]
#0: 000000006e82fb5b (&sb->s_type->i_mutex_key#21/1){+.+.}, at: filename_create+0x1a8/0x5a0 fs/namei.c:3635
2 locks held by syz-executor0/9188:
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
device loop0 blocksize: 4096
__find_get_block_slow() failed. block=1, b_blocknr=8
#0: 00000000411c9b31 (sb_writers#14){.+.+}, at: file_start_write include/linux/fs.h:2815 [inline]
#0: 00000000411c9b31 (sb_writers#14){.+.+}, at: do_sendfile+0xad7/0xe60 fs/read_write.c:1435
b_state=0x00000021, b_size=512
#1: 000000008d110738 (&sb->s_type->i_mutex_key#21){++++}, at: inode_lock include/linux/fs.h:757 [inline]
#1: 000000008d110738 (&sb->s_type->i_mutex_key#21){++++}, at: generic_file_write_iter+0xe5/0x6a0 mm/filemap.c:3358
device loop0 blocksize: 4096
=============================================
__find_get_block_slow() failed. block=1, b_blocknr=8
NMI backtrace for cpu 1
b_state=0x00000021, b_size=512
CPU: 1 PID: 1040 Comm: khungtaskd Not tainted 5.0.0-rc2+ #30
device loop0 blocksize: 4096
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__find_get_block_slow() failed. block=1, b_blocknr=8
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1db/0x2d0 lib/dump_stack.c:113
b_state=0x00000021, b_size=512
nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1be/0x236 lib/nmi_backtrace.c:62
device loop0 blocksize: 4096
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0xbbb/0x1170 kernel/hung_task.c:287
__find_get_block_slow() failed. block=1, b_blocknr=8
b_state=0x00000021, b_size=512
kthread+0x357/0x430 kernel/kthread.c:246
device loop0 blocksize: 4096
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
__find_get_block_slow() failed. block=1, b_blocknr=8
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.474 msecs
NMI backtrace for cpu 0
CPU: 0 PID: 9128 Comm: syz-executor0 Not tainted 5.0.0-rc2+ #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_is_held+0x9c/0x140 kernel/locking/lockdep.c:3659
Code: 08 00 00 85 c0 7f 23 e9 88 00 00 00 41 0f b6 45 00 41 83 c6 01 84 c0 74 08 3c 03 0f 8e 92 00 00 00 44 39 b3 78 08 00 00 7e 6a <48> 8b 4d d0 49 63 c6 4c 89 e6 48 8d 04 80 4c 8d 3c c1 4c 89 ff e8
RSP: 0018:ffff8880ae607be8 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffff88805909a440 RCX: dffffc0000000000
RDX: ffffed1015cc0f66 RSI: 0000000000000000 RDI: ffff88805909ad32
RBP: ffff8880ae607c28 R08: ffff88805909a440 R09: ffffed1015cc5b90
R10: ffffed1015cc5b8f R11: ffff8880ae62dc7b R12: ffffffff899a3e80
R13: ffffed100b213597 R14: 0000000000000003 R15: ffff88805909ad10
FS: 00007f150c98e700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045806f CR3: 00000000936dc000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lock_is_held_type+0x110/0x210 kernel/locking/lockdep.c:3879
lock_is_held include/linux/lockdep.h:337 [inline]
rcu_read_lock_sched_held+0x110/0x130 kernel/rcu/update.c:117
trace_hrtimer_cancel include/trace/events/timer.h:285 [inline]
debug_deactivate kernel/time/hrtimer.c:463 [inline]
__run_hrtimer kernel/time/hrtimer.c:1359 [inline]
__hrtimer_run_queues+0xd98/0x1050 kernel/time/hrtimer.c:1451
hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
smp_apic_timer_interrupt+0x18d/0x760 arch/x86/kernel/apic/apic.c:1060
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline]
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:1697 [inline]
RIP: 0010:vprintk_emit+0x84c/0x960 kernel/printk/printk.c:1930
Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 ef 00 00 00 48 83 3d c4 54 2a 08 00 74 2d e8 fd d2 19 00 48 8b bd 10 ff ff ff 57 9d <0f> 1f 44 00 00 e9 a3 fe ff ff e8 e5 d2 19 00 0f 0b e8 de d2 19 00
RSP: 0018:ffff888056046d60 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: 1ffff1100ac08db2 RCX: ffffc90005e5f000
RDX: 0000000000040000 RSI: ffffffff81682bf3 RDI: 0000000000000246
RBP: ffff888056046e58 R08: 0000000000000006 R09: ffff88805909ad30
R10: ffff88805909a440 R11: 0000000000000000 R12: 0000000000000200
R13: ffffed100ac08dbc R14: 0000000000000000 R15: ffff888056046e30
vprintk_default+0x28/0x30 kernel/printk/printk.c:1958
vprintk_func+0x7e/0x189 kernel/printk/printk_safe.c:398
printk+0xba/0xed kernel/printk/printk.c:1991
__find_get_block_slow fs/buffer.c:231 [inline]
__find_get_block fs/buffer.c:1294 [inline]
__find_get_block.cold+0x36/0xfb fs/buffer.c:1288
__getblk_slow fs/buffer.c:1039 [inline]
__getblk_gfp+0x295/0xd20 fs/buffer.c:1320
__bread_gfp+0x2f/0x300 fs/buffer.c:1354
sb_bread include/linux/buffer_head.h:307 [inline]
fat__get_entry+0x586/0xa40 fs/fat/dir.c:101
fat_get_entry fs/fat/dir.c:129 [inline]
fat_search_long+0x345/0x17d0 fs/fat/dir.c:479
vfat_find+0x10e/0x140 fs/fat/namei_vfat.c:697
vfat_lookup+0x10a/0x6b0 fs/fat/namei_vfat.c:711
lookup_open+0x726/0x1b80 fs/namei.c:3213
do_last fs/namei.c:3324 [inline]
path_openat+0x25fd/0x5650 fs/namei.c:3534
do_filp_open+0x26f/0x370 fs/namei.c:3564
do_sys_open+0x59a/0x7c0 fs/open.c:1063
__do_sys_open fs/open.c:1081 [inline]
__se_sys_open fs/open.c:1076 [inline]
__x64_sys_open+0x7e/0xc0 fs/open.c:1076
do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f150c98dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000200
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f150c98e6d4
R13: 00000000004f4bff R14: 00000000004d7108 R15: 00000000ffffffff