syzbot

 sign-in | mailing list | source | docs
🐞 Open [712]
🐞 Fixed [297]
🐞 Invalid [838]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

WARNING in __writeback_inodes_sb_nr

Status: upstream: reported C repro on 2020/09/20 14:27
Subsystems: btrfs
[Documentation on labels]
Reported-by: syzbot+5c2dc141988585eb49ce@syzkaller.appspotmail.com
First crash: 1760d, last: 863d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __writeback_inodes_sb_nr btrfs -1 syz done error 2 1682d 1737d 0/29 auto-obsoleted due to no activity on 2022/09/26 16:54
▶ ▼ Fix bisection attempts (7)
Created Duration User Patch Repo Result
2021/10/28 11:08 15m bisect fix linux-4.19.y error job log
2021/09/23 08:51 27m bisect fix linux-4.19.y OK (0) job log log
2021/08/24 08:05 26m bisect fix linux-4.19.y OK (0) job log log
2021/07/25 06:03 28m bisect fix linux-4.19.y OK (0) job log log
2021/06/15 16:32 24m bisect fix linux-4.19.y OK (0) job log log
2021/03/14 04:51 29m bisect fix linux-4.19.y OK (0) job log log
2020/11/29 12:48 25m bisect fix linux-4.19.y OK (0) job log log

Sample crash report:
BTRFS info (device loop0): creating free space tree
BTRFS info (device loop0): setting 1 ro feature flag
BTRFS info (device loop0): setting 2 ro feature flag
BTRFS info (device loop0): checking UUID tree
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8134 at fs/fs-writeback.c:2370 __writeback_inodes_sb_nr.cold+0x11/0x18 fs/fs-writeback.c:2370
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8134 Comm: btrfs-transacti Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__writeback_inodes_sb_nr.cold+0x11/0x18 fs/fs-writeback.c:2370
Code: e1 e8 36 ba 6d f9 48 c7 c7 c0 f9 74 88 e8 95 eb fe ff 0f 0b e9 75 12 b9 f9 e8 1e ba 6d f9 48 c7 c7 c0 f9 74 88 e8 7d eb fe ff <0f> 0b e9 c9 34 b9 f9 e8 06 ba 6d f9 48 c7 c7 c0 f9 74 88 e8 65 eb
RSP: 0018:ffff88808cda7c48 EFLAGS: 00010286
RAX: 0000000000000024 RBX: 1ffff110119b4f8b RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10119b4f7b
RBP: ffff8880b168a400 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000006400
R13: ffff8880b2490c00 R14: ffff8880b168a530 R15: ffff88808cda7c88
 btrfs_start_delalloc_flush fs/btrfs/transaction.c:1927 [inline]
 btrfs_commit_transaction+0x1bb1/0x2480 fs/btrfs/transaction.c:2078
 transaction_kthread+0x385/0x490 fs/btrfs/disk-io.c:1794
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (349):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/27 16:50 linux-4.19.y 3f8a27f9e27b 9189cb53 .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2022/12/09 11:02 linux-4.19.y 3f8a27f9e27b 1034e5fa .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2022/11/26 17:55 linux-4.19.y 3f8a27f9e27b f4470a7b .config console log report syz C [disk image] [vmlinux] [mounted in repro] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2022/06/05 11:16 linux-4.19.y 3f8a27f9e27b c8857892 .config console log report syz C ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2021/05/15 05:43 linux-4.19.y 3c8c23092588 8bdd5343 .config console log report syz C ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2021/04/05 11:26 linux-4.19.y 2034d6f0838e 6a81331a .config console log report syz C ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2020/10/02 11:10 linux-4.19.y b09c34517e1a 9602ddf4 .config console log report syz C ci2-linux-4-19
2020/09/20 17:13 linux-4.19.y 015e94d0e37b 9564d2e9 .config console log report syz C ci2-linux-4-19
2023/03/06 18:42 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/04 13:07 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/04 07:32 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/04 01:11 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/03 02:45 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/02 23:32 linux-4.19.y 3f8a27f9e27b f8902b57 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/01 06:08 linux-4.19.y 3f8a27f9e27b 95aee97a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/03/01 05:48 linux-4.19.y 3f8a27f9e27b 95aee97a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/28 22:42 linux-4.19.y 3f8a27f9e27b 95aee97a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/28 17:09 linux-4.19.y 3f8a27f9e27b 95aee97a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/27 21:08 linux-4.19.y 3f8a27f9e27b 9189cb53 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/27 15:35 linux-4.19.y 3f8a27f9e27b 9189cb53 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/27 13:08 linux-4.19.y 3f8a27f9e27b 9189cb53 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/26 14:20 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/26 08:51 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/26 07:00 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/25 22:03 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/25 17:19 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/25 14:26 linux-4.19.y 3f8a27f9e27b ee50e71c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/23 07:42 linux-4.19.y 3f8a27f9e27b 9f1e2cb3 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/22 16:07 linux-4.19.y 3f8a27f9e27b 9f1e2cb3 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/22 08:14 linux-4.19.y 3f8a27f9e27b 42a4d508 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/21 09:17 linux-4.19.y 3f8a27f9e27b f949448d .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/20 22:52 linux-4.19.y 3f8a27f9e27b 2414209c .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/19 19:46 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/19 16:03 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/19 07:52 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/19 05:42 linux-4.19.y 3f8a27f9e27b bcdf85f8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/17 15:33 linux-4.19.y 3f8a27f9e27b 3e7039f4 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/16 18:30 linux-4.19.y 3f8a27f9e27b 38b317a7 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/15 19:51 linux-4.19.y 3f8a27f9e27b 6be0f1f5 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/15 18:33 linux-4.19.y 3f8a27f9e27b 6be0f1f5 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/15 02:55 linux-4.19.y 3f8a27f9e27b e62ba3c1 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/14 23:42 linux-4.19.y 3f8a27f9e27b e62ba3c1 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/14 10:52 linux-4.19.y 3f8a27f9e27b 93ae7e0a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/14 05:23 linux-4.19.y 3f8a27f9e27b 93ae7e0a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/13 19:45 linux-4.19.y 3f8a27f9e27b 957959cb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/13 19:02 linux-4.19.y 3f8a27f9e27b 957959cb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/13 13:19 linux-4.19.y 3f8a27f9e27b 957959cb .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/11 09:03 linux-4.19.y 3f8a27f9e27b 93e26d60 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/11 05:06 linux-4.19.y 3f8a27f9e27b 93e26d60 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/10 14:09 linux-4.19.y 3f8a27f9e27b e29a17f5 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/10 08:22 linux-4.19.y 3f8a27f9e27b 07980f9d .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/09 10:19 linux-4.19.y 3f8a27f9e27b 14a312c8 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/08 00:53 linux-4.19.y 3f8a27f9e27b 15c3d445 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/06 22:10 linux-4.19.y 3f8a27f9e27b 0a9c11b6 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/06 00:45 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2023/02/05 17:16 linux-4.19.y 3f8a27f9e27b be607b78 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 WARNING in __writeback_inodes_sb_nr
2021/01/15 22:50 linux-4.19.y 675cc038067f 65a7a854 .config console log report info ci2-linux-4-19
2020/09/20 14:26 linux-4.19.y 015e94d0e37b 9564d2e9 .config console log report info ci2-linux-4-19
* Struck through repros no longer work on HEAD.