JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. ====================================================== WARNING: possible circular locking dependency detected 6.11.0-syzkaller-07462-g1868f9d0260e #0 Not tainted ------------------------------------------------------ syz-executor125/5109 is trying to acquire lock: ffff8880407915a8 (&osb->system_file_mutex){+.+.}-{3:3}, at: ocfs2_get_system_file_inode+0x18f/0x7b0 fs/ocfs2/sysfile.c:101 but task is already holding lock: ffff8880441b14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_extend_file+0x14e/0x5b0 fs/ocfs2/file.c:1072 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1526 ocfs2_read_virt_blocks+0x2ca/0xa50 fs/ocfs2/extent_map.c:976 ocfs2_read_dir_block fs/ocfs2/dir.c:508 [inline] ocfs2_find_entry_el fs/ocfs2/dir.c:715 [inline] ocfs2_find_entry+0x43b/0x2780 fs/ocfs2/dir.c:1080 ocfs2_find_files_on_disk+0xff/0x360 fs/ocfs2/dir.c:1981 ocfs2_lookup_ino_from_name+0xb1/0x1e0 fs/ocfs2/dir.c:2003 _ocfs2_get_system_file_inode fs/ocfs2/sysfile.c:136 [inline] ocfs2_get_system_file_inode+0x305/0x7b0 fs/ocfs2/sysfile.c:112 ocfs2_init_global_system_inodes+0x32c/0x730 fs/ocfs2/super.c:457 ocfs2_initialize_super fs/ocfs2/super.c:2250 [inline] ocfs2_fill_super+0x3068/0x5880 fs/ocfs2/super.c:994 mount_bdev+0x20a/0x2d0 fs/super.c:1679 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2b0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4055 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&osb->system_file_mutex){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3158 [inline] check_prevs_add kernel/locking/lockdep.c:3277 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ocfs2_get_system_file_inode+0x18f/0x7b0 fs/ocfs2/sysfile.c:101 ocfs2_reserve_local_alloc_bits+0x107/0x2870 fs/ocfs2/localalloc.c:627 ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166 ocfs2_convert_inline_data_to_extents+0x29d/0x17f0 fs/ocfs2/alloc.c:7078 ocfs2_extend_file+0x339/0x5b0 fs/ocfs2/file.c:1084 ocfs2_setattr+0x906/0x1f50 fs/ocfs2/file.c:1211 notify_change+0xbca/0xe90 fs/attr.c:503 do_truncate fs/open.c:65 [inline] do_ftruncate+0x462/0x580 fs/open.c:181 do_sys_ftruncate fs/open.c:199 [inline] __do_sys_ftruncate fs/open.c:207 [inline] __se_sys_ftruncate fs/open.c:205 [inline] __x64_sys_ftruncate+0x95/0xf0 fs/open.c:205 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_file_ip_alloc_sem_key); lock(&osb->system_file_mutex); lock(&ocfs2_file_ip_alloc_sem_key); lock(&osb->system_file_mutex); *** DEADLOCK *** 3 locks held by syz-executor125/5109: #0: ffff88803da12420 (sb_writers#9){.+.+}-{0:0}, at: do_ftruncate+0x28b/0x580 fs/open.c:178 #1: ffff8880441b1800 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline] #1: ffff8880441b1800 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: do_truncate fs/open.c:63 [inline] #1: ffff8880441b1800 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: do_ftruncate+0x44e/0x580 fs/open.c:181 #2: ffff8880441b14a0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_extend_file+0x14e/0x5b0 fs/ocfs2/file.c:1072 stack backtrace: CPU: 0 UID: 0 PID: 5109 Comm: syz-executor125 Not tainted 6.11.0-syzkaller-07462-g1868f9d0260e #0 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 lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2203 check_prev_add kernel/locking/lockdep.c:3158 [inline] check_prevs_add kernel/locking/lockdep.c:3277 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3901 __lock_acquire+0x1384/0x2050 kernel/locking/lockdep.c:5199 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5822 __mutex_lock_common kernel/locking/mutex.c:608 [inline] __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752 ocfs2_get_system_file_inode+0x18f/0x7b0 fs/ocfs2/sysfile.c:101 ocfs2_reserve_local_alloc_bits+0x107/0x2870 fs/ocfs2/localalloc.c:627 ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 fs/ocfs2/suballoc.c:1166 ocfs2_convert_inline_data_to_extents+0x29d/0x17f0 fs/ocfs2/alloc.c:7078 ocfs2_extend_file+0x339/0x5b0 fs/ocfs2/file.c:1084 ocfs2_setattr+0x906/0x1f50 fs/ocfs2/file.c:1211 notify_change+0xbca/0xe90 fs/attr.c:503 do_truncate fs/open.c:65 [inline] do_ftruncate+0x462/0x580 fs/open.c:181 do_sys_ftruncate fs/open.c:199 [inline] __do_sys_ftruncate fs/open.c:207 [inline] __se_sys_ftruncate fs/open.c:205 [inline] __x64_sys_ftruncate+0x95/0xf0 fs/open.c:205 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5e53331329 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe6f25cf58 EFLAGS: 00000246 ORIG_RAX: 000000000000004d RAX: ffffffffffffffda RBX: 00007f5e5337a0a0 RCX: 00007f5e53331329 RDX: 00007f5e53331329 RSI: 0000000002007ffb RDI: 0000000000000005 RBP: 0000000000000000 R08: 00007ffe6f25cf90 R09: 00007ffe6f25cf90 R10: 00007ffe6f25cf90 R11: 0000000000000246 R12: 00007ffe6f25cf7c R13: 0000000000000006 R14: 431bde82d7b634db R15: 00007ffe6f25cfb0 OCFS2: ERROR (device loop0): int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *, handle_t *, u32, u32, struct ocfs2_suballoc_result *): Chain allocator dinode 23 has 4294967295 used bits but only 16777215 total On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz-executor125,5109,0):ocfs2_claim_suballoc_bits:2038 ERROR: status = -30 (syz-executor125,5109,0):__ocfs2_claim_clusters:2412 ERROR: status = -30 (syz-executor125,5109,0):__ocfs2_claim_clusters:2420 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_local_alloc_new_window:1197 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_local_alloc_new_window:1222 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_local_alloc_slide_window:1296 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_local_alloc_slide_window:1315 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_reserve_local_alloc_bits:672 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_reserve_local_alloc_bits:710 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_reserve_clusters_with_limit:1170 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_reserve_clusters_with_limit:1219 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_convert_inline_data_to_extents:7080 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_extend_file:1087 ERROR: status = -30 (syz-executor125,5109,0):ocfs2_setattr:1214 ERROR: status = -30