loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
======================================================
WARNING: possible circular locking dependency detected
6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 Not tainted
------------------------------------------------------
syz.0.0/5345 is trying to acquire lock:
ffff8880528e5100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline]
ffff8880528e5100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: __ocfs2_flush_truncate_log+0x33c/0x10e0 fs/ocfs2/alloc.c:6054
but task is already holding lock:
ffff8880528eb480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline]
ffff8880528eb480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x47/0x70 fs/ocfs2/alloc.c:6083
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}:
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871
down_write+0x96/0x1f0 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:869 [inline]
ocfs2_move_extent fs/ocfs2/move_extents.c:640 [inline]
__ocfs2_move_extents_range+0x1a68/0x3370 fs/ocfs2/move_extents.c:860
ocfs2_move_extents+0x378/0x960 fs/ocfs2/move_extents.c:927
ocfs2_ioctl_move_extents+0x53e/0x710 fs/ocfs2/move_extents.c:1053
ocfs2_ioctl+0x191/0x750 fs/ocfs2/ioctl.c:946
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3168 [inline]
check_prevs_add kernel/locking/lockdep.c:3287 [inline]
validate_chain+0xb9b/0x2140 kernel/locking/lockdep.c:3911
__lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5240
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871
down_write+0x96/0x1f0 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:869 [inline]
__ocfs2_flush_truncate_log+0x33c/0x10e0 fs/ocfs2/alloc.c:6054
ocfs2_flush_truncate_log+0x4f/0x70 fs/ocfs2/alloc.c:6084
ocfs2_sync_fs+0x116/0x310 fs/ocfs2/super.c:406
sync_filesystem+0x1cf/0x230 fs/sync.c:66
ocfs2_reconfigure+0x139/0xb90 fs/ocfs2/super.c:616
reconfigure_super+0x224/0x890 fs/super.c:1077
do_remount fs/namespace.c:3386 [inline]
path_mount+0xd18/0xfe0 fs/namespace.c:4218
do_mount fs/namespace.c:4239 [inline]
__do_sys_mount fs/namespace.c:4450 [inline]
__se_sys_mount+0x317/0x410 fs/namespace.c:4427
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5);
lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4);
*** DEADLOCK ***
2 locks held by syz.0.0/5345:
#0: ffff888035d0a0e0 (&type->s_umount_key#49){+.+.}-{4:4}, at: do_remount fs/namespace.c:3383 [inline]
#0: ffff888035d0a0e0 (&type->s_umount_key#49){+.+.}-{4:4}, at: path_mount+0xcd2/0xfe0 fs/namespace.c:4218
#1: ffff8880528eb480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:869 [inline]
#1: ffff8880528eb480 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_flush_truncate_log+0x47/0x70 fs/ocfs2/alloc.c:6083
stack backtrace:
CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_circular_bug+0x2ee/0x310 kernel/locking/lockdep.c:2046
check_noncircular+0x134/0x160 kernel/locking/lockdep.c:2178
check_prev_add kernel/locking/lockdep.c:3168 [inline]
check_prevs_add kernel/locking/lockdep.c:3287 [inline]
validate_chain+0xb9b/0x2140 kernel/locking/lockdep.c:3911
__lock_acquire+0xab9/0xd20 kernel/locking/lockdep.c:5240
lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871
down_write+0x96/0x1f0 kernel/locking/rwsem.c:1577
inode_lock include/linux/fs.h:869 [inline]
__ocfs2_flush_truncate_log+0x33c/0x10e0 fs/ocfs2/alloc.c:6054
ocfs2_flush_truncate_log+0x4f/0x70 fs/ocfs2/alloc.c:6084
ocfs2_sync_fs+0x116/0x310 fs/ocfs2/super.c:406
sync_filesystem+0x1cf/0x230 fs/sync.c:66
ocfs2_reconfigure+0x139/0xb90 fs/ocfs2/super.c:616
reconfigure_super+0x224/0x890 fs/super.c:1077
do_remount fs/namespace.c:3386 [inline]
path_mount+0xd18/0xfe0 fs/namespace.c:4218
do_mount fs/namespace.c:4239 [inline]
__do_sys_mount fs/namespace.c:4450 [inline]
__se_sys_mount+0x317/0x410 fs/namespace.c:4427
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc95e79014a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc95f6c4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc95f6c4ef0 RCX: 00007fc95e79014a
RDX: 0000200000000180 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 0000200000000180 R08: 00007fc95f6c4ef0 R09: 0000000001a4243c
R10: 0000000001a4243c R11: 0000000000000246 R12: 0000200000000100
R13: 00007fc95f6c4eb0 R14: 0000000000000000 R15: 0000200000000680
(syz.0.0,5345,0):ocfs2_check_set_options:1244 ERROR: Invalid heartbeat mount options
getblk(): invalid block size 512 requested
logical block size: 32768
CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
__getblk_slow fs/buffer.c:1133 [inline]
bdev_getblk+0x5b0/0x690 fs/buffer.c:1467
__getblk include/linux/buffer_head.h:382 [inline]
sb_getblk include/linux/buffer_head.h:388 [inline]
ocfs2_read_blocks+0x533/0x1540 fs/ocfs2/buffer_head_io.c:236
ocfs2_read_block fs/ocfs2/buffer_head_io.h:52 [inline]
ocfs2_read_dx_root fs/ocfs2/dir.c:603 [inline]
ocfs2_find_entry_dx fs/ocfs2/dir.c:1027 [inline]
ocfs2_find_entry+0xca3/0x2000 fs/ocfs2/dir.c:1071
ocfs2_find_files_on_disk+0xef/0x340 fs/ocfs2/dir.c:1994
ocfs2_unlink+0x4c7/0x1940 fs/ocfs2/namei.c:916
vfs_unlink+0x391/0x650 fs/namei.c:4595
do_unlinkat+0x350/0x560 fs/namei.c:4659
__do_sys_unlink fs/namei.c:4705 [inline]
__se_sys_unlink fs/namei.c:4703 [inline]
__x64_sys_unlink+0x47/0x50 fs/namei.c:4703
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc95e78e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc95f6c5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007fc95e9b5fa0 RCX: 00007fc95e78e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000440
RBP: 00007fc95e810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc95e9b5fa0 R15: 00007ffce64eeff8
(syz.0.0,5345,0):ocfs2_read_blocks:239 ERROR: status = -12
(syz.0.0,5345,0):ocfs2_find_entry_dx:1029 ERROR: status = -12
(syz.0.0,5345,0):ocfs2_unlink:921 ERROR: status = -12
(syz.0.0,5345,0):ocfs2_unlink:1043 ERROR: status = -12