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.
=======================================================
------------[ cut here ]------------
rtmutex deadlock detected
WARNING: CPU: 1 PID: 4311 at kernel/locking/rtmutex.c:1662 rt_mutex_handle_deadlock+0x1c/0x40 kernel/locking/rtmutex.c:1662
Modules linked in:
CPU: 1 UID: 0 PID: 4311 Comm: syz.3.17 Not tainted 6.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:rt_mutex_handle_deadlock+0x1c/0x40 kernel/locking/rtmutex.c:1662
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 53 83 ff dd 75 32 48 89 f7 e8 d2 6f 00 00 90 48 c7 c7 ac d7 a4 83 e8 25 2c fc ff 90 <0f> 0b 90 90 65 48 8b 1c 25 80 f6 02 00 b8 01 00 00 00 87 43 18 e8
RSP: 0018:ffffc90003b1f800 EFLAGS: 00010246
RAX: fc14e8996d373f00 RBX: ffff888111116048 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff83a23c84 RDI: 00000000ffffffff
RBP: 0000000000000002 R08: 0000000000001fff R09: ffffffff83f63ef0
R10: 0000000000005ffd R11: 00000000ffffdfff R12: ffff888107369b80
R13: ffffc90003b1f9e0 R14: 0000000000000286 R15: 00000000ffffffdd
FS:  00007faccbeaf6c0(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000109e06000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __rt_mutex_slowlock kernel/locking/rtmutex.c:1717 [inline]
 __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1741 [inline]
 rt_mutex_slowlock+0x1f6/0x320 kernel/locking/rtmutex.c:1779
 __rt_mutex_lock kernel/locking/rtmutex.c:1794 [inline]
 __mutex_lock_common kernel/locking/rtmutex_api.c:512 [inline]
 mutex_lock_nested+0xaf/0xe0 kernel/locking/rtmutex_api.c:523
 hfs_find_init+0x7d/0x90 fs/hfs/bfind.c:-1
 hfs_ext_read_extent fs/hfs/extent.c:200 [inline]
 hfs_extend_file+0xd6/0x480 fs/hfs/extent.c:401
 hfs_bmap_reserve+0x21/0x90 fs/hfs/btree.c:234
 __hfs_ext_write_extent+0x7a/0xb0 fs/hfs/extent.c:121
 __hfs_ext_cache_extent+0x21/0x100 fs/hfs/extent.c:174
 hfs_ext_read_extent fs/hfs/extent.c:202 [inline]
 hfs_extend_file+0x104/0x480 fs/hfs/extent.c:401
 hfs_get_block+0xa7/0x2d0 fs/hfs/extent.c:353
 __block_write_begin_int+0x200/0x970 fs/buffer.c:2121
 block_write_begin fs/buffer.c:2231 [inline]
 cont_write_begin+0x389/0x520 fs/buffer.c:2582
 hfs_write_begin+0x22/0x50 fs/hfs/inode.c:52
 cont_expand_zero fs/buffer.c:2509 [inline]
 cont_write_begin+0xfe/0x520 fs/buffer.c:2572
 hfs_write_begin+0x22/0x50 fs/hfs/inode.c:52
 hfs_file_truncate+0xa2/0x260 fs/hfs/extent.c:494
 hfs_inode_setattr+0x103/0x140 fs/hfs/inode.c:654
 notify_change+0x2fc/0x360 fs/attr.c:503
 do_truncate+0xd7/0x120 fs/open.c:65
 vfs_truncate+0xf2/0x120 fs/open.c:111
 do_sys_truncate+0x74/0xf0 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xe2/0x210 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faccc03ebe9
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:00007faccbeaf038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007faccc265fa0 RCX: 00007faccc03ebe9
RDX: 0000000000000000 RSI: 0000000001001bfc RDI: 0000200000000040
RBP: 00007faccc0c1e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faccc266038 R14: 00007faccc265fa0 R15: 00007ffd6b2e0348
 </TASK>