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WARNING in ext4_write_inode (2)

Status: upstream: reported C repro on 2022/02/12 00:47
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+748cc361874fca7d33cc@syzkaller.appspotmail.com
First crash: 1017d, last: 34d
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[syzbot] WARNING in ext4_write_inode (2) 0 (2) 2024/10/17 16:58
[syzbot] Monthly ext4 report (Oct 2024) 0 (1) 2024/10/17 07:42
[syzbot] Monthly ext4 report (Mar 2024) 0 (1) 2024/03/12 09:29
[syzbot] Monthly ext4 report (Feb 2024) 0 (1) 2024/02/09 20:57
[syzbot] Monthly ext4 report (May 2023) 5 (6) 2023/06/03 06:20
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in ext4_write_inode 6 1732d 1733d 0/1 auto-closed as invalid on 2020/06/22 22:10
upstream WARNING in ext4_write_inode ext4 13 1723d 1730d 15/28 fixed on 2020/05/10 10:41
linux-5.15 WARNING in ext4_write_inode 1 603d 603d 0/3 auto-obsoleted due to no activity on 2023/07/26 10:16
linux-4.19 WARNING in ext4_write_inode 1 1732d 1732d 0/1 auto-closed as invalid on 2020/06/22 14:27
linux-6.1 WARNING in ext4_write_inode 5 526d 608d 0/3 auto-obsoleted due to no activity on 2023/09/21 16:26
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/10/31 16:58 19m retest repro upstream OK log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 74 at fs/ext4/inode.c:5195 ext4_write_inode+0x627/0x6f0 fs/ext4/inode.c:5195
Modules linked in:
CPU: 0 UID: 0 PID: 74 Comm: kswapd0 Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_write_inode+0x627/0x6f0 fs/ext4/inode.c:5195
Code: ff ff ff 4d 85 ff 74 12 e8 16 38 34 ff 4c 89 ff e8 0e 7d c2 ff e9 cf fd ff ff e8 04 38 34 ff e9 c5 fd ff ff e8 fa 37 34 ff 90 <0f> 0b 90 e9 b7 fd ff ff e8 ec 37 34 ff e9 76 fd ff ff 44 89 f1 80
RSP: 0018:ffffc90000e46e20 EFLAGS: 00010293
RAX: ffffffff8260af56 RBX: 0000000000000800 RCX: ffff88801eea2440
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000000000000000
RBP: ffffc90000e46f20 R08: ffffffff8260a9f2 R09: 1ffffffff2039fcd
R10: dffffc0000000000 R11: ffffffff8260a930 R12: 0000000000220840
R13: 1ffff920001c8dc8 R14: 0000000000000000 R15: ffff88801eea2440
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbfc77f1af8 CR3: 000000000e734000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1503 [inline]
 __writeback_single_inode+0x711/0x10d0 fs/fs-writeback.c:1723
 writeback_single_inode+0x1f3/0x660 fs/fs-writeback.c:1779
 write_inode_now+0x1dd/0x260 fs/fs-writeback.c:2829
 iput_final fs/inode.c:1864 [inline]
 iput+0x60d/0xa50 fs/inode.c:1903
 __dentry_kill+0x20d/0x630 fs/dcache.c:615
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1060
 shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1087
 prune_dcache_sb+0x10f/0x180 fs/dcache.c:1168
 super_cache_scan+0x34f/0x4b0 fs/super.c:221
 do_shrink_slab+0x701/0x1160 mm/shrinker.c:435
 shrink_slab+0x1093/0x14d0 mm/shrinker.c:662
 shrink_one+0x43b/0x850 mm/vmscan.c:4818
 shrink_many mm/vmscan.c:4879 [inline]
 lru_gen_shrink_node mm/vmscan.c:4957 [inline]
 shrink_node+0x3799/0x3de0 mm/vmscan.c:5937
 kswapd_shrink_node mm/vmscan.c:6765 [inline]
 balance_pgdat mm/vmscan.c:6957 [inline]
 kswapd+0x1ca3/0x3700 mm/vmscan.c:7226
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (130):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/17 16:57 upstream c964ced77262 666f77ed .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root WARNING in ext4_write_inode
2024/10/17 15:49 upstream c964ced77262 666f77ed .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in ext4_write_inode
2024/10/07 08:12 upstream 2a130b7e1fcd d7906eff .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in ext4_write_inode
2024/10/05 11:33 upstream 27cc6fdf7201 d7906eff .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in ext4_write_inode
2024/09/30 16:04 upstream 9852d85ec9d4 179f4029 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in ext4_write_inode
2024/02/20 22:26 upstream fca7526b7d89 3af7dd65 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ext4_write_inode
2024/02/03 01:34 upstream 56897d51886f 60bf9982 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ext4_write_inode
2024/01/31 00:08 upstream 861c0981648f 373b66cd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ext4_write_inode
2024/01/21 22:22 upstream 4fbbed787267 9bd8dcda .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ext4_write_inode
2024/01/17 14:45 upstream 052d534373b7 c9a1c95b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ext4_write_inode
2024/06/27 22:23 upstream 66e55ff12e73 6ef39602 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/22 21:50 upstream 563a50672d8a c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/22 11:04 upstream 35bb670d65fc c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/18 00:55 upstream 2ccbdf43d5e7 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/11 14:01 upstream 83a7eefedc9b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/07 01:49 upstream d30d0e49da71 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/06 06:09 upstream 2df0193e62cf c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/05 19:41 upstream 71d7b52cc33b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/06/05 11:10 upstream 32f88d65f01b c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/31 22:53 upstream d8ec19857b09 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/31 21:08 upstream d8ec19857b09 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/31 18:41 upstream 4a4be1ad3a6e c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/31 08:51 upstream 4a4be1ad3a6e c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/29 20:33 upstream 4a4be1ad3a6e c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/29 20:33 upstream 4a4be1ad3a6e c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/29 19:23 upstream 4a4be1ad3a6e c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/28 22:03 upstream e0cce98fe279 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/27 19:41 upstream 2bfcfd584ff5 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/27 17:14 upstream 2bfcfd584ff5 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/27 03:49 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/27 01:49 upstream 1613e604df0c c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/26 18:29 upstream c13320499ba0 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/26 11:31 upstream c13320499ba0 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/25 05:13 upstream 02c438bbfffe c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/23 02:09 upstream 5f16eb0549ab c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/05/20 09:03 upstream eb6a9339efeb c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/03/14 03:13 upstream e5e038b7ae9d f919f202 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/28 13:32 upstream cf1182944c7c 55d6f11d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/27 17:50 upstream 45ec2f5f6ed3 d367cbe5 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/27 03:39 upstream 45ec2f5f6ed3 05e69c83 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/26 13:18 upstream d206a76d7d27 23536c23 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/25 11:58 upstream ab0a97cffa0b 8d446f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/24 08:57 upstream 603c04e27c3e 8d446f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/24 03:33 upstream b6d69282db55 8d446f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/23 04:31 upstream ffd2cb6b718e 8d446f15 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/12 20:10 upstream 716f4aaa7b48 77b23aa1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/06 18:32 upstream 99bd3cb0d12e 6404acf9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/02/05 19:20 upstream 54be6c6c5ae8 e23e8c20 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/01/23 01:44 upstream 610347effc2e 1c0ecc51 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/01/13 04:29 upstream 23a80d462c67 551587c1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2024/01/12 04:36 upstream 22d29f1112c8 00f3cc59 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ext4_write_inode
2023/04/16 11:59 upstream 3e7bb4f24617 ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in ext4_write_inode
2023/03/13 21:11 upstream fc89d7fb499b 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ext4_write_inode
2022/10/27 15:15 upstream 98555239e4c3 86777b7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ext4_write_inode
2022/10/26 11:02 upstream 4dc12f37a8e9 2159e4d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ext4_write_inode
2022/02/11 21:04 upstream 1d41d2e82623 8b9ca619 .config console log report info ci-upstream-kasan-gce-root WARNING in ext4_write_inode
2022/02/08 00:41 upstream 2ade8eef993c a7dab638 .config console log report info ci-qemu-upstream-386 WARNING in ext4_write_inode
2022/07/05 13:13 bpf ea1c3b77bc0b bff65f44 .config console log report info ci-upstream-bpf-kasan-gce WARNING in ext4_write_inode
2023/05/31 21:08 linux-next 715abedee4cd e2a77acd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in ext4_write_inode
* Struck through repros no longer work on HEAD.