loop0: detected capacity change from 0 to 32768 (syz.0.0,5328,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. (syz.0.0,5328,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. (syz.0.0,5328,0):ocfs2_extend_trans:438 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_insert_path:4189 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_do_insert_extent:4345 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_insert_extent:4767 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_add_clusters_in_btree:4860 ERROR: status = -30 (syz.0.0,5328,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 2 access to buffer! (syz.0.0,5328,0):ocfs2_block_group_clear_bits:2465 ERROR: status = -30 (syz.0.0,5328,0):_ocfs2_free_suballoc_bits:2566 ERROR: status = -30 (syz.0.0,5328,0):_ocfs2_free_clusters:2650 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_write_cluster:1131 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_write_cluster_by_desc:1225 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_write_begin_nolock:1798 ERROR: status = -30 ============================================ WARNING: possible recursive locking detected 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 Not tainted -------------------------------------------- syz.0.0/5328 is trying to acquire lock: ffff8880409b2610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_dquot fs/ocfs2/quota_global.c:679 [inline] ffff8880409b2610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_mark_dquot_dirty+0x416/0xe00 fs/ocfs2/quota_global.c:954 but task is already holding lock: ffff8880409b2610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_nolock+0x2e11/0x4e80 fs/ocfs2/aops.c:1748 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(sb_internal#2); lock(sb_internal#2); *** DEADLOCK *** May be due to missing lock nesting notation 8 locks held by syz.0.0/5328: #0: ffff8880409b2420 (sb_writers#12){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1157 #1: ffff8880449ea640 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #1: ffff8880449ea640 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: ocfs2_file_write_iter+0x43c/0x20d0 fs/ocfs2/file.c:2399 #2: ffff8880449ea2e0 (&oi->ip_alloc_sem){++++}-{4:4}, at: ocfs2_dio_wr_get_block+0x971/0x18d0 fs/ocfs2/aops.c:2197 #3: ffff8880449e1800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #3: ffff8880449e1800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x18d/0x4f30 fs/ocfs2/suballoc.c:786 #4: ffff88804496d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #4: ffff88804496d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x18d/0x4f30 fs/ocfs2/suballoc.c:786 #5: ffff8880409b2610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_nolock+0x2e11/0x4e80 fs/ocfs2/aops.c:1748 #6: ffff888045d5e4e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3c2/0x710 fs/ocfs2/journal.c:350 #7: ffffffff8eebccb0 (dquot_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:161 [inline] #7: ffffffff8eebccb0 (dquot_srcu){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:253 [inline] #7: ffffffff8eebccb0 (dquot_srcu){.+.+}-{0:0}, at: __dquot_free_space+0x1f5/0xec0 fs/quota/dquot.c:1901 stack backtrace: CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted 6.15.0-rc2-syzkaller-00471-g119009db2674 #0 PREEMPT(full) 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:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_deadlock_bug+0x2be/0x2d0 kernel/locking/lockdep.c:3042 check_deadlock kernel/locking/lockdep.c:3094 [inline] validate_chain+0x928/0x24e0 kernel/locking/lockdep.c:3896 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866 percpu_down_read include/linux/percpu-rwsem.h:52 [inline] __sb_start_write include/linux/fs.h:1783 [inline] sb_start_intwrite include/linux/fs.h:1966 [inline] ocfs2_start_trans+0x2bd/0x710 fs/ocfs2/journal.c:348 ocfs2_write_dquot fs/ocfs2/quota_global.c:679 [inline] ocfs2_mark_dquot_dirty+0x416/0xe00 fs/ocfs2/quota_global.c:954 mark_dquot_dirty fs/quota/dquot.c:370 [inline] mark_all_dquot_dirty+0x101/0x450 fs/quota/dquot.c:410 __dquot_free_space+0x97f/0xec0 fs/quota/dquot.c:1928 dquot_free_space_nodirty include/linux/quotaops.h:374 [inline] dquot_free_space+0x1b/0x30 include/linux/quotaops.h:379 ocfs2_write_begin_nolock+0x35e7/0x4e80 fs/ocfs2/aops.c:1814 ocfs2_dio_wr_get_block+0xc3d/0x18d0 fs/ocfs2/aops.c:2211 get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x1add/0x4540 fs/direct-io.c:1243 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2438 generic_file_direct_write+0x1e8/0x400 mm/filemap.c:4037 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4206 ocfs2_file_write_iter+0x190f/0x20d0 fs/ocfs2/file.c:2469 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1158 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x281/0x3d0 fs/splice.c:1227 do_sendfile+0x582/0x8c0 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64+0x17e/0x1e0 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe2b178e169 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:00007fe2adbf5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe2b19b5fa0 RCX: 00007fe2b178e169 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006 RBP: 00007fe2b1810a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000080000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe2b19b5fa0 R15: 00007fffb46178b8 (syz.0.0,5328,0):ocfs2_start_trans:357 ERROR: status = -30 OCFS2: abort (device loop0): handle_t *ocfs2_start_trans(struct ocfs2_super *, int): Detected aborted journal On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: Returning error to the calling process. (syz.0.0,5328,0):ocfs2_write_dquot:682 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_mark_dquot_dirty:983 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_start_trans:357 ERROR: status = -30 OCFS2: abort (device loop0): handle_t *ocfs2_start_trans(struct ocfs2_super *, int): Detected aborted journal On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: Returning error to the calling process. (syz.0.0,5328,0):ocfs2_write_dquot:682 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_mark_dquot_dirty:983 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_dio_wr_get_block:2215 ERROR: status = -30 (syz.0.0,5328,0):ocfs2_dio_end_io:2398 ERROR: Direct IO failed, bytes = -30 syz.0.0 (5328) used greatest stack depth: 16808 bytes left