syzbot


WARNING in jbd2_journal_dirty_metadata (2)

Status: upstream: reported on 2025/05/30 09:28
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+f71f98e4cf272ac05861@syzkaller.appspotmail.com
First crash: 40d, last: 4d02h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ext4?] WARNING in jbd2_journal_dirty_metadata (2) 0 (1) 2025/05/30 09:28
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in jbd2_journal_dirty_metadata ext4 49 130d 299d 0/29 auto-obsoleted due to no activity on 2025/05/05 22:21

Sample crash report:
infiniband syz0: set active
infiniband syz0: added bond0
RDS/IB: syz0: added
smc: adding ib device syz0 with port count 1
smc:    ib device syz0 port 1 has pnetid 
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5322 at fs/jbd2/transaction.c:1553 jbd2_journal_dirty_metadata+0x8e6/0xc30 fs/jbd2/transaction.c:1553
Modules linked in:
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #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
RIP: 0010:jbd2_journal_dirty_metadata+0x8e6/0xc30 fs/jbd2/transaction.c:1553
Code: 8b 44 24 40 4d 89 f9 50 53 41 55 41 54 e8 62 c6 9f fe 48 83 c4 20 90 0f 0b 90 bb ea ff ff ff e9 35 fe ff ff e8 2b 86 38 ff 90 <0f> 0b 90 bb e4 ff ff ff e9 22 fe ff ff 48 8b 44 24 30 48 83 c0 18
RSP: 0018:ffffc9000d745cd8 EFLAGS: 00010283
RAX: ffffffff8287c875 RBX: 1ffff1100a5cffc5 RCX: 0000000000100000
RDX: ffffc9000e8ab000 RSI: 0000000000015344 RDI: 0000000000015345
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001ae8b8c R12: ffff8880124168d8
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11002482d18
FS:  00007f6e156846c0(0000) GS:ffff88808d250000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005625675e9168 CR3: 000000004304a000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 ocfs2_journal_dirty+0x149/0x740 fs/ocfs2/journal.c:834
 ocfs2_block_group_set_bits+0x71e/0x9a0 fs/ocfs2/suballoc.c:1432
 ocfs2_search_chain+0x1aa9/0x2430 fs/ocfs2/suballoc.c:1914
 ocfs2_claim_suballoc_bits+0x9d6/0x2450 fs/ocfs2/suballoc.c:2000
 ocfs2_claim_metadata+0x178/0x4c0 fs/ocfs2/suballoc.c:2082
 ocfs2_create_new_meta_bhs+0x1b9/0x9a0 fs/ocfs2/alloc.c:1008
 ocfs2_add_branch fs/ocfs2/alloc.c:1229 [inline]
 ocfs2_grow_tree+0x1a41/0x34c0 fs/ocfs2/alloc.c:1585
 ocfs2_split_and_insert+0x3a1/0x1210 fs/ocfs2/alloc.c:4951
 ocfs2_split_extent+0x1247/0x1c50 fs/ocfs2/alloc.c:5133
 ocfs2_clear_ext_refcount+0x4c3/0x7d0 fs/ocfs2/refcounttree.c:3095
 ocfs2_replace_clusters fs/ocfs2/refcounttree.c:3128 [inline]
 ocfs2_make_clusters_writable fs/ocfs2/refcounttree.c:3252 [inline]
 ocfs2_replace_cow+0xc0c/0x1b90 fs/ocfs2/refcounttree.c:3346
 ocfs2_refcount_cow_hunk fs/ocfs2/refcounttree.c:3424 [inline]
 ocfs2_refcount_cow+0x779/0xc90 fs/ocfs2/refcounttree.c:3467
 ocfs2_prepare_inode_for_write fs/ocfs2/file.c:2340 [inline]
 ocfs2_file_write_iter+0xe28/0x1d10 fs/ocfs2/file.c:2451
 do_iter_readv_writev+0x56b/0x7f0 fs/read_write.c:-1
 vfs_writev+0x31a/0x960 fs/read_write.c:1057
 do_writev+0x14d/0x2d0 fs/read_write.c:1103
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6e1478e929
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:00007f6e15684038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f6e149b6080 RCX: 00007f6e1478e929
RDX: 0000000000000001 RSI: 0000200000000100 RDI: 0000000000000004
RBP: 00007f6e14810b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6e149b6080 R15: 00007ffcd165f878
 </TASK>

Crashes (22):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/01 19:23 upstream 66701750d556 a073c096 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/30 09:05 upstream d0b3b7b22dfa fc9d8ee5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/30 01:24 upstream afa9a6f4f574 fc9d8ee5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/27 08:40 upstream f02769e7f272 803ce19b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/26 06:21 upstream 92ca6c498a5e 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/25 03:18 upstream 7595b66ae9de 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/25 03:07 upstream 7595b66ae9de 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/25 03:06 upstream 7595b66ae9de 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/24 23:10 upstream 78f4e737a53e 26d77996 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/24 09:25 upstream 78f4e737a53e e2f27c35 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/23 13:49 upstream 86731a2a651e d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/23 09:02 upstream b67ec639010f d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/23 04:03 upstream b67ec639010f d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/21 03:49 upstream 11313e2f7812 d6cdfb8a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/19 11:16 upstream fb4d33ab452e ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/19 09:13 upstream fb4d33ab452e ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/18 15:48 upstream 52da431bf03b ed3e87f7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/15 16:49 upstream 8c6bc74c7f89 5f4b362d .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/03 15:04 upstream 546b1c9e93c2 a30356b7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/06/03 09:12 upstream 7f9039c524a3 a30356b7 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/05/28 13:22 upstream c89756bcf406 874a1386 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
2025/05/26 09:19 upstream 0ff41df1cb26 2d4582d0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in jbd2_journal_dirty_metadata
* Struck through repros no longer work on HEAD.