ocfs2: Mounting device (7,7) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
6.14.0-rc3-syzkaller #0 Not tainted
------------------------------------------------------
syz.7.256/7909 is trying to acquire lock:
ffff888056d906f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627

but task is already holding lock:
ffff8880776fc2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
ffff8880776fc2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11d/0x48e0 fs/ocfs2/suballoc.c:786

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:877 [inline]
       ocfs2_remove_inode+0x15c/0x8a0 fs/ocfs2/inode.c:669
       ocfs2_wipe_inode+0x455/0x1220 fs/ocfs2/inode.c:832
       ocfs2_delete_inode fs/ocfs2/inode.c:1093 [inline]
       ocfs2_evict_inode+0x6da/0x1610 fs/ocfs2/inode.c:1230
       evict+0x40c/0x960 fs/inode.c:796
       iput_final fs/inode.c:1946 [inline]
       iput fs/inode.c:1972 [inline]
       iput+0x52a/0x890 fs/inode.c:1958
       do_unlinkat+0x5c3/0x760 fs/namei.c:4596
       __do_sys_unlink fs/namei.c:4637 [inline]
       __se_sys_unlink fs/namei.c:4635 [inline]
       __x64_sys_unlink+0xc5/0x110 fs/namei.c:4635
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       inode_lock include/linux/fs.h:877 [inline]
       ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2727
       ocfs2_dio_end_io_write+0x2cc/0xf30 fs/ocfs2/aops.c:2310
       ocfs2_dio_end_io+0x139/0x2a0 fs/ocfs2/aops.c:2408
       dio_complete+0x21b/0x980 fs/direct-io.c:281
       __blockdev_direct_IO+0x3412/0x40b0 fs/direct-io.c:1303
       ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2445
       generic_file_direct_write+0x19a/0x410 mm/filemap.c:4112
       __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4276
       ocfs2_file_write_iter+0xbd0/0x21d0 fs/ocfs2/file.c:2469
       do_iter_readv_writev+0x658/0x950 fs/read_write.c:820
       vfs_writev+0x363/0xdd0 fs/read_write.c:1050
       do_pwritev+0x1b1/0x270 fs/read_write.c:1146
       __do_sys_pwritev2 fs/read_write.c:1204 [inline]
       __se_sys_pwritev2 fs/read_write.c:1195 [inline]
       __x64_sys_pwritev2+0xef/0x160 fs/read_write.c:1195
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&oi->ip_alloc_sem){++++}-{4:4}:
       down_write+0x93/0x200 kernel/locking/rwsem.c:1577
       ocfs2_try_remove_refcount_tree+0xa8/0x320 fs/ocfs2/refcounttree.c:932
       ocfs2_truncate_file+0xbb9/0x1760 fs/ocfs2/file.c:521
       ocfs2_setattr+0x15a0/0x2570 fs/ocfs2/file.c:1212
       notify_change+0x6a9/0x1230 fs/attr.c:552
       do_truncate+0x15c/0x220 fs/open.c:65
       handle_truncate fs/namei.c:3451 [inline]
       do_open fs/namei.c:3834 [inline]
       path_openat+0x2784/0x2d80 fs/namei.c:3989
       do_filp_open+0x20c/0x470 fs/namei.c:4016
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1428
       do_sys_open fs/open.c:1443 [inline]
       __do_sys_creat fs/open.c:1521 [inline]
       __se_sys_creat fs/open.c:1515 [inline]
       __x64_sys_creat+0xcd/0x120 fs/open.c:1515
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&oi->ip_xattr_sem){++++}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3163 [inline]
       check_prevs_add kernel/locking/lockdep.c:3282 [inline]
       validate_chain kernel/locking/lockdep.c:3906 [inline]
       __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5228
       lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
       down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
       ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627
       ocfs2_mknod+0x9f9/0x2440 fs/ocfs2/namei.c:330
       ocfs2_create+0x185/0x450 fs/ocfs2/namei.c:673
       lookup_open.isra.0+0x11d5/0x1580 fs/namei.c:3651
       open_last_lookups fs/namei.c:3750 [inline]
       path_openat+0x904/0x2d80 fs/namei.c:3986
       do_filp_open+0x20c/0x470 fs/namei.c:4016
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1428
       do_sys_open fs/open.c:1443 [inline]
       __do_sys_open fs/open.c:1451 [inline]
       __se_sys_open fs/open.c:1447 [inline]
       __x64_sys_open+0x154/0x1e0 fs/open.c:1447
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type] --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]);
                               lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2);
  rlock(&oi->ip_xattr_sem);

 *** DEADLOCK ***

3 locks held by syz.7.256/7909:
 #0: ffff88803095a420 (sb_writers#17){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:3739 [inline]
 #0: ffff88803095a420 (sb_writers#17){.+.+}-{0:0}, at: path_openat+0x1fab/0x2d80 fs/namei.c:3986
 #1: ffff888056d909c0 (&type->i_mutex_dir_key#8){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
 #1: ffff888056d909c0 (&type->i_mutex_dir_key#8){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3747 [inline]
 #1: ffff888056d909c0 (&type->i_mutex_dir_key#8){+.+.}-{4:4}, at: path_openat+0x15a4/0x2d80 fs/namei.c:3986
 #2: ffff8880776fc2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline]
 #2: ffff8880776fc2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11d/0x48e0 fs/ocfs2/suballoc.c:786

stack backtrace:
CPU: 0 UID: 0 PID: 7909 Comm: syz.7.256 Not tainted 6.14.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x490/0x760 kernel/locking/lockdep.c:2076
 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2208
 check_prev_add kernel/locking/lockdep.c:3163 [inline]
 check_prevs_add kernel/locking/lockdep.c:3282 [inline]
 validate_chain kernel/locking/lockdep.c:3906 [inline]
 __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5228
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5851
 down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
 ocfs2_calc_xattr_init+0x5e7/0xcc0 fs/ocfs2/xattr.c:627
 ocfs2_mknod+0x9f9/0x2440 fs/ocfs2/namei.c:330
 ocfs2_create+0x185/0x450 fs/ocfs2/namei.c:673
 lookup_open.isra.0+0x11d5/0x1580 fs/namei.c:3651
 open_last_lookups fs/namei.c:3750 [inline]
 path_openat+0x904/0x2d80 fs/namei.c:3986
 do_filp_open+0x20c/0x470 fs/namei.c:4016
 do_sys_openat2+0x17a/0x1e0 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_open fs/open.c:1451 [inline]
 __se_sys_open fs/open.c:1447 [inline]
 __x64_sys_open+0x154/0x1e0 fs/open.c:1447
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe99d38cde9
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:00007fe99e1a3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007fe99d5a5fa0 RCX: 00007fe99d38cde9
RDX: 0000000000000104 RSI: 000000000014927e RDI: 0000400000000180
RBP: 00007fe99d40e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe99d5a5fa0 R15: 00007ffe7dcd8d48
 </TASK>
OCFS2: ERROR (device loop7): ocfs2_validate_gd_self: Group descriptor #0 has bad signature 
On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.7.256,7909,0):ocfs2_search_chain:1814 ERROR: status = -30
(syz.7.256,7909,0):ocfs2_search_chain:1926 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_claim_suballoc_bits:1995 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_claim_suballoc_bits:2038 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_claim_metadata:2063 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_claim_metadata:2076 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_dx_dir_attach_index:2328 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_expand_inline_dir:3021 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_extend_dir:3203 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_prepare_dir_for_insert:4308 ERROR: status = -30
(syz.7.256,7909,1):ocfs2_link:761 ERROR: status = -30
(syz.7.256,7909,0):ocfs2_link:839 ERROR: status = -30