syzbot


WARNING in __btrfs_free_extent

Status: upstream: reported C repro on 2022/11/02 22:30
Subsystems: btrfs
[Documentation on labels]
Reported-by: syzbot+560e6a32d484d7293e37@syzkaller.appspotmail.com
First crash: 400d, last: 26m
Cause bisection: failed (error log, bisect log)
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING in __btrfs_free_extent 0 (1) 2022/11/02 22:30
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in __btrfs_free_extent btrfs C error 4 338d 356d 0/1 upstream: reported C repro on 2022/12/14 03:41
Last patch testing requests (10)
Created Duration User Patch Repo Result
2023/11/26 15:22 33m retest repro upstream report log
2023/11/26 15:10 13m retest repro upstream report log
2023/11/26 15:22 15m retest repro upstream report log
2023/11/26 15:10 17m retest repro upstream report log
2023/11/26 15:07 14m retest repro upstream report log
2023/10/29 21:56 15m retest repro linux-next report log
2023/10/29 21:06 15m retest repro upstream report log
2023/10/29 21:06 19m retest repro upstream report log
2023/10/15 18:54 17m retest repro upstream report log
2023/10/15 18:54 17m retest repro upstream report log

Sample crash report:
BTRFS info (device loop0): setting incompat feature flag for SIMPLE_QUOTA (0x10000)
------------[ cut here ]------------
BTRFS: Transaction aborted (error -2)
WARNING: CPU: 1 PID: 5059 at fs/btrfs/extent-tree.c:2983 do_free_extent_accounting fs/btrfs/extent-tree.c:2983 [inline]
WARNING: CPU: 1 PID: 5059 at fs/btrfs/extent-tree.c:2983 __btrfs_free_extent+0x31bc/0x38e0 fs/btrfs/extent-tree.c:3358
Modules linked in:
CPU: 1 PID: 5059 Comm: syz-executor246 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:do_free_extent_accounting fs/btrfs/extent-tree.c:2983 [inline]
RIP: 0010:__btrfs_free_extent+0x31bc/0x38e0 fs/btrfs/extent-tree.c:3358
Code: aa 8b 44 89 ee e8 04 dd c3 fd 90 0f 0b 90 90 e9 57 f3 ff ff e8 35 ff fd fd 90 48 c7 c7 60 b5 aa 8b 44 89 ee e8 e5 dc c3 fd 90 <0f> 0b 90 90 e9 65 f3 ff ff e8 16 ff fd fd 90 48 c7 c7 60 b5 aa 8b
RSP: 0018:ffffc900043e7120 EFLAGS: 00010246
RAX: ee8bdaa2c5ed0400 RBX: ffff88807a124001 RCX: ffff88807eb3bb80
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900043e7320 R08: ffffffff81545a92 R09: 1ffff11017325172
R10: dffffc0000000000 R11: ffffed1017325173 R12: dffffc0000000000
R13: 00000000fffffffe R14: 0000000000000000 R15: ffff88807e64f4a0
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f87485b8eb8 CR3: 0000000075dc3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1759 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1784 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2042 [inline]
 __btrfs_run_delayed_refs+0x13c8/0x44d0 fs/btrfs/extent-tree.c:2112
 btrfs_run_delayed_refs+0xe3/0x2c0 fs/btrfs/extent-tree.c:2224
 btrfs_commit_transaction+0x4ba/0x3740 fs/btrfs/transaction.c:2237
 sync_filesystem+0x1c0/0x220 fs/sync.c:66
 generic_shutdown_super+0x72/0x2c0 fs/super.c:669
 kill_anon_super+0x3b/0x70 fs/super.c:1295
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2100
 deactivate_locked_super+0xc1/0x130 fs/super.c:484
 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
 task_work_run+0x24a/0x300 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0xa34/0x2750 kernel/exit.c:871
 do_group_exit+0x206/0x2c0 kernel/exit.c:1021
 __do_sys_exit_group kernel/exit.c:1032 [inline]
 __se_sys_exit_group kernel/exit.c:1030 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f874856e949
Code: Unable to access opcode bytes at 0x7f874856e91f.
RSP: 002b:00007ffe659a0d18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f874856e949
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f87485ef2d0 R08: ffffffffffffffb8 R09: 00007ffe659a0df0
R10: 00007ffe659a0df0 R11: 0000000000000246 R12: 00007f87485ef2d0
R13: 0000000000000000 R14: 00007f87485f0040 R15: 00007f874853ce90
 </TASK>

Crashes (50):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/12/05 22:47 upstream bee0e7762ad2 858d62d1 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/08/23 06:47 upstream 53663f4103ff b81ca3f6 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in __btrfs_free_extent
2023/08/22 06:27 upstream f7757129e3de 6b415825 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in __btrfs_free_extent
2023/08/20 16:06 upstream 9e6c269de404 d216d8a0 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in __btrfs_free_extent
2023/08/14 14:32 upstream 2ccdd1b13c59 39990d51 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in __btrfs_free_extent
2023/08/08 20:08 upstream 14f9643dc90a 3c27dfcd .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-selinux-root WARNING in __btrfs_free_extent
2023/06/28 09:01 upstream 6f612579be9d 4cd5bb25 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/06/25 14:09 upstream a92b7d26c743 09ffe269 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/06/23 21:28 upstream 8a28a0b6f1a1 09ffe269 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/06/23 10:16 upstream 8a28a0b6f1a1 09ffe269 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/06/19 02:03 upstream 8c1f0c38b310 f3921d4d .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/06/17 07:10 upstream 40f71e7cd3c6 f3921d4d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2023/02/22 20:24 upstream 5b7c4cabbb65 409945bc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2023/01/02 16:50 upstream 88603b6dc419 ab32d508 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/12/28 15:14 upstream 1b929c02afd3 44712fbc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2022/12/03 03:13 upstream a4412fdd49dc e080de16 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/10/31 03:49 upstream b229b6ca5abb 2a71366b .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/01/22 13:27 linux-next d514392f17fd 559a440a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in __btrfs_free_extent
2023/12/05 22:03 upstream bee0e7762ad2 858d62d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/10/01 18:08 upstream e402b08634b3 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/09/03 14:36 upstream 92901222f83d 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/08/23 07:55 upstream 53663f4103ff b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/08/14 23:18 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/08/01 13:11 upstream 5d0c230f1de8 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/07/29 06:57 upstream f837f0a3c948 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/07/27 10:36 upstream 0a8db05b571a 41fe1bae .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/07/14 17:07 upstream 4b810bf037e5 d624500f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/07/06 05:29 upstream d528014517f2 ba5dba36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/06/28 01:51 upstream e8f75c0270d9 4cd5bb25 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2023/06/09 17:25 upstream 33f2b5785a2b 9018a337 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/06/02 18:30 upstream c43a6ff9f93f a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/05/28 07:01 upstream 4e893b5aa4ac cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/05/16 05:13 upstream f1fcbaa18b28 71b00cfb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/05/13 06:10 upstream 9a48d6046722 ecca8a24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/22 23:38 upstream 2caeeb9d4a1b 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/22 13:37 upstream 8e41e0a57566 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/20 03:57 upstream 789b4a41c247 a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/16 03:19 upstream a7a55e27ad72 ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/12 08:51 upstream e62252bc55b6 1a1596b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/04 06:59 upstream 148341f0a2f5 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/01 23:32 upstream 7b50567bdcad f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/01 00:41 upstream 5a57b48fdfcb f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/28 22:07 upstream 3a93e40326c8 48c74771 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2023/03/26 19:09 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/25 10:49 upstream 65aca32efdcb fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/23 11:24 upstream fff5a5e7f528 f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/02/11 05:15 upstream 420b2d431d18 93e26d60 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/01/31 19:23 upstream 22b8077d0fce b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/12/09 20:22 upstream 0d1409e4ff08 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2022/10/31 03:26 upstream b229b6ca5abb 2a71366b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
* Struck through repros no longer work on HEAD.