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.0.247/7277 is trying to acquire lock: ffff88805729b480 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] ffff88805729b480 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x11f/0x26f0 fs/ocfs2/localalloc.c:636 but task is already holding lock: ffff8880572994a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_dio_wr_get_block+0x91c/0x1800 fs/ocfs2/aops.c:2200 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x96/0x200 kernel/locking/rwsem.c:1590 ocfs2_try_remove_refcount_tree+0xb6/0x340 fs/ocfs2/refcounttree.c:933 ocfs2_xattr_set+0x61a/0x13e0 fs/ocfs2/xattr.c:3700 ocfs2_set_acl+0x701/0x7b0 fs/ocfs2/acl.c:255 ocfs2_iop_set_acl+0x1b1/0x2b0 fs/ocfs2/acl.c:287 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x8ff/0xc00 fs/posix_acl.c:1134 do_setxattr fs/xattr.c:633 [inline] filename_setxattr+0x305/0x630 fs/xattr.c:664 path_setxattrat+0x3eb/0x440 fs/xattr.c:708 __do_sys_setxattr fs/xattr.c:742 [inline] __se_sys_setxattr fs/xattr.c:738 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x2fd/0x7e0 fs/ocfs2/acl.c:367 ocfs2_mknod+0x1679/0x2290 fs/ocfs2/namei.c:414 ocfs2_create+0x195/0x490 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4483 [inline] open_last_lookups fs/namei.c:4583 [inline] path_openat+0x1395/0x3860 fs/namei.c:4827 do_file_open+0x23e/0x4a0 fs/namei.c:4859 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_open fs/open.c:1380 [inline] __se_sys_open fs/open.c:1376 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1376 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537 ocfs2_start_trans+0x3ab/0x700 fs/ocfs2/journal.c:372 ocfs2_modify_bh+0xe3/0x4d0 fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0x1454/0x1810 fs/ocfs2/quota_local.c:767 dquot_load_quota_sb+0x791/0xbd0 fs/quota/dquot.c:2462 dquot_load_quota_inode+0x2e1/0x5d0 fs/quota/dquot.c:2499 ocfs2_enable_quotas+0x1c8/0x4a0 fs/ocfs2/super.c:930 ocfs2_fill_super+0x5305/0x6900 fs/ocfs2/super.c:1140 get_tree_bdev_flags+0x431/0x4f0 fs/super.c:1694 vfs_get_tree+0x92/0x2a0 fs/super.c:1754 fc_mount fs/namespace.c:1193 [inline] do_new_mount_fc fs/namespace.c:3760 [inline] do_new_mount+0x341/0xd30 fs/namespace.c:3836 do_mount fs/namespace.c:4159 [inline] __do_sys_mount fs/namespace.c:4348 [inline] __se_sys_mount+0x31d/0x420 fs/namespace.c:4325 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (sb_internal#3){.+.+}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x2ac/0x700 fs/ocfs2/journal.c:370 ocfs2_mknod+0x1181/0x2290 fs/ocfs2/namei.c:365 ocfs2_create+0x195/0x490 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4483 [inline] open_last_lookups fs/namei.c:4583 [inline] path_openat+0x1395/0x3860 fs/namei.c:4827 do_file_open+0x23e/0x4a0 fs/namei.c:4859 do_sys_openat2+0x113/0x200 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_open fs/open.c:1380 [inline] __se_sys_open fs/open.c:1376 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1376 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868 down_write+0x96/0x200 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1028 [inline] ocfs2_reserve_local_alloc_bits+0x11f/0x26f0 fs/ocfs2/localalloc.c:636 ocfs2_reserve_clusters_with_limit+0x1b9/0xc20 fs/ocfs2/suballoc.c:1237 ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1298 [inline] ocfs2_lock_allocators+0x2d8/0x600 fs/ocfs2/suballoc.c:3073 ocfs2_write_begin_nolock+0x1b3b/0x41e0 fs/ocfs2/aops.c:1719 ocfs2_dio_wr_get_block+0xbbf/0x1800 fs/ocfs2/aops.c:2214 get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x15d7/0x32f0 fs/direct-io.c:1243 ocfs2_direct_IO+0x251/0x2c0 fs/ocfs2/aops.c:2441 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476 do_iter_readv_writev+0x619/0x8c0 fs/read_write.c:-1 vfs_writev+0x33c/0x990 fs/read_write.c:1059 do_pwritev fs/read_write.c:1155 [inline] __do_sys_pwritev2 fs/read_write.c:1213 [inline] __se_sys_pwritev2+0x184/0x2a0 fs/read_write.c:1204 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE] --> &oi->ip_xattr_sem --> &ocfs2_file_ip_alloc_sem_key Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_file_ip_alloc_sem_key); lock(&oi->ip_xattr_sem); lock(&ocfs2_file_ip_alloc_sem_key); lock(&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]); *** DEADLOCK *** 3 locks held by syz.0.247/7277: #0: ffff8880213b8420 (sb_writers#22){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2710 [inline] #0: ffff8880213b8420 (sb_writers#22){.+.+}-{0:0}, at: vfs_writev+0x2aa/0x990 fs/read_write.c:1057 #1: ffff888057299800 (&sb->s_type->i_mutex_key#43){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline] #1: ffff888057299800 (&sb->s_type->i_mutex_key#43){+.+.}-{4:4}, at: ocfs2_file_write_iter+0x429/0x1ed0 fs/ocfs2/file.c:2406 #2: ffff8880572994a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}, at: ocfs2_dio_wr_get_block+0x91c/0x1800 fs/ocfs2/aops.c:2200 stack backtrace: CPU: 1 UID: 0 PID: 7277 Comm: syz.0.247 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237 lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868 down_write+0x96/0x200 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1028 [inline] ocfs2_reserve_local_alloc_bits+0x11f/0x26f0 fs/ocfs2/localalloc.c:636 ocfs2_reserve_clusters_with_limit+0x1b9/0xc20 fs/ocfs2/suballoc.c:1237 ocfs2_reserve_clusters fs/ocfs2/suballoc.c:1298 [inline] ocfs2_lock_allocators+0x2d8/0x600 fs/ocfs2/suballoc.c:3073 ocfs2_write_begin_nolock+0x1b3b/0x41e0 fs/ocfs2/aops.c:1719 ocfs2_dio_wr_get_block+0xbbf/0x1800 fs/ocfs2/aops.c:2214 get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x15d7/0x32f0 fs/direct-io.c:1243 ocfs2_direct_IO+0x251/0x2c0 fs/ocfs2/aops.c:2441 generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417 ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476 do_iter_readv_writev+0x619/0x8c0 fs/read_write.c:-1 vfs_writev+0x33c/0x990 fs/read_write.c:1059 do_pwritev fs/read_write.c:1155 [inline] __do_sys_pwritev2 fs/read_write.c:1213 [inline] __se_sys_pwritev2+0x184/0x2a0 fs/read_write.c:1204 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcc7299aeb9 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:00007fcc737b5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fcc72c15fa0 RCX: 00007fcc7299aeb9 RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000009 RBP: 00007fcc72a08c1f R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcc72c16038 R14: 00007fcc72c15fa0 R15: 00007ffe8955a588 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.0.247,7277,1):ocfs2_claim_suballoc_bits:2151 ERROR: status = -30 (syz.0.247,7277,1):__ocfs2_claim_clusters:2532 ERROR: status = -30 (syz.0.247,7277,1):__ocfs2_claim_clusters:2540 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_local_alloc_new_window:1197 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_local_alloc_new_window:1222 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_local_alloc_slide_window:1296 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_local_alloc_slide_window:1315 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_reserve_local_alloc_bits:672 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_reserve_local_alloc_bits:710 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_reserve_clusters_with_limit:1241 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_reserve_clusters_with_limit:1290 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_lock_allocators:3076 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_write_begin_nolock:1723 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_dio_wr_get_block:2218 ERROR: status = -30 (syz.0.247,7277,1):ocfs2_dio_end_io:2401 ERROR: Direct IO failed, bytes = -30