jbd2_journal_bmap: journal block not found at offset 32 on loop0-75
JBD2: bad block at offset 32
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.0.207/6994 is trying to acquire lock:
ffff8881b4c7a3f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_init_acl+0x2fd/0x7e0

but task is already holding lock:
ffff88816e1a70e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3ab/0x700

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&journal->j_trans_barrier){.+.+}-{4:4}:
       down_read+0x47/0x2e0
       ocfs2_start_trans+0x3ab/0x700
       ocfs2_update_inode_atime+0xef/0x580
       ocfs2_inode_lock_atime+0x33b/0x540
       ocfs2_readdir+0x1ac/0x510
       wrap_directory_iterator+0x96/0xe0
       iterate_dir+0x399/0x570
       __se_sys_getdents64+0xf1/0x280
       do_syscall_64+0x14d/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (sb_internal#5){.+.+}-{0:0}:
       ocfs2_start_trans+0x2ac/0x700
       ocfs2_setattr+0xcc6/0x1cc0
       notify_change+0xc1a/0xf40
       chown_common+0x466/0x6b0
       do_fchownat+0x14c/0x250
       __x64_sys_lchown+0x85/0xa0
       do_syscall_64+0x14d/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&oi->ip_alloc_sem){++++}-{4:4}:
       down_write+0x96/0x200
       ocfs2_try_remove_refcount_tree+0xb6/0x340
       ocfs2_truncate_file+0xdf3/0x1540
       ocfs2_setattr+0x15e5/0x1cc0
       notify_change+0xc1a/0xf40
       do_truncate+0x1c2/0x250
       path_openat+0x2f89/0x3860
       do_file_open+0x23e/0x4a0
       do_sys_openat2+0x113/0x200
       __x64_sys_open+0x11e/0x150
       do_syscall_64+0x14d/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&oi->ip_xattr_sem){++++}-{4:4}:
       __lock_acquire+0x15a5/0x2cf0
       lock_acquire+0xf0/0x2e0
       down_read+0x47/0x2e0
       ocfs2_init_acl+0x2fd/0x7e0
       ocfs2_mknod+0x1679/0x2290
       ocfs2_create+0x195/0x490
       path_openat+0x1395/0x3860
       do_file_open+0x23e/0x4a0
       do_sys_openat2+0x113/0x200
       __x64_sys_openat+0x138/0x170
       do_syscall_64+0x14d/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &oi->ip_xattr_sem --> sb_internal#5 --> &journal->j_trans_barrier

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  rlock(&journal->j_trans_barrier);
                               lock(sb_internal#5);
                               lock(&journal->j_trans_barrier);
  rlock(&oi->ip_xattr_sem);

 *** DEADLOCK ***

8 locks held by syz.0.207/6994:
 #0: ffff8881b9d34420 (sb_writers#21){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881b4c7a6c0 (&type->i_mutex_dir_key#15){++++}-{4:4}, at: path_openat+0xb4c/0x3860
 #2: ffff8881b4c609c0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4940
 #3: ffff8881b4c63540 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4940
 #4: ffff8881b4c626c0 (&ocfs2_sysfile_lock_key[GLOBAL_BITMAP_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4940
 #5: ffff8881b9d34610 (sb_internal#5){.+.+}-{0:0}, at: ocfs2_mknod+0x1181/0x2290
 #6: ffff88816e1a70e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3ab/0x700
 #7: ffff8881b9b7a950 (jbd2_handle#2){.+.+}-{0:0}, at: start_this_handle+0x2054/0x2290

stack backtrace:
CPU: 1 UID: 0 PID: 6994 Comm: syz.0.207 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_circular_bug+0x2e1/0x300
 check_noncircular+0x12e/0x150
 __lock_acquire+0x15a5/0x2cf0
 lock_acquire+0xf0/0x2e0
 down_read+0x47/0x2e0
 ocfs2_init_acl+0x2fd/0x7e0
 ocfs2_mknod+0x1679/0x2290
 ocfs2_create+0x195/0x490
 path_openat+0x1395/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c49f9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5c4ad7b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5c4a215fa0 RCX: 00007f5c49f9c799
RDX: 00000000000c4042 RSI: 0000200000000300 RDI: ffffffffffffff9c
RBP: 00007f5c4a032c99 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001ff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c4a216038 R14: 00007f5c4a215fa0 R15: 00007ffc302afcc8
 </TASK>
OCFS2: ERROR (device loop0): int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *, handle_t *, u32, u32, struct ocfs2_suballoc_result *): Chain allocator dinode 71 has 16777215 used bits but only 1024 total
On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.0.207,6994,0):ocfs2_claim_suballoc_bits:2151 ERROR: status = -30
(syz.0.207,6994,0):__ocfs2_claim_clusters:2532 ERROR: status = -30
(syz.0.207,6994,0):__ocfs2_claim_clusters:2540 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_add_clusters_in_btree:4838 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_write_cluster:1132 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_write_cluster_by_desc:1226 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_write_begin_nolock:1798 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_dio_wr_get_block:2217 ERROR: status = -30
(syz.0.207,6994,0):ocfs2_dio_end_io:2400 ERROR: Direct IO failed, bytes = -30
