From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f79.google.com (mail-io1-f79.google.com [209.85.166.79]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5CAB21DFD8 for ; Sun, 23 Jun 2024 15:39:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719157165; cv=none; b=em6I0VRLptSPhjal1GavtuEXDyBMaIdZiCvJf51NyZbWoD8Zzc66xm4a0bvBK/JUcxd+zHaNbnnO/ia50wrQVmGjRlHjwNxl2wg8wIkU2HDrG9rk09UuIU3KQ32jMB+/rTTfJGwsiJ0B3eI6VGEVomTlbslzIyMIhQAXhE3kyDQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719157165; c=relaxed/simple; bh=9yvW496ZCme6R+fZtQRf/kUwwW4daBGCaWiUQoZh6F0=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; 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List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:8711:b0:4b7:c9b5:675c with SMTP id 8926c6da1cb9f-4b9e7f27f5amr148607173.6.1719157163497; Sun, 23 Jun 2024 08:39:23 -0700 (PDT) Date: Sun, 23 Jun 2024 08:39:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000b2e35061b9078aa@google.com> Subject: [syzbot] [btrfs?] WARNING in __btrfs_free_extent (2) From: syzbot To: boris@bur.io, clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2ccbdf43d5e7 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=10aed446980000 kernel config: https://syzkaller.appspot.com/x/.config?x=c79815c08cc14227 dashboard link: https://syzkaller.appspot.com/bug?extid=fe3566bcb509ae7764ef compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10ebe941980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1374b3de980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/35e32e9073a7/disk-2ccbdf43.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6c6e34658d16/vmlinux-2ccbdf43.xz kernel image: https://storage.googleapis.com/syzbot-assets/4417e7ef76ed/bzImage-2ccbdf43.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/b1cd2f1f0c7e/mount_0.gz The issue was bisected to: commit cecbb533b5fcec4ff77e786b7f94457f6cacd9e7 Author: Boris Burkov Date: Wed Jun 28 18:00:15 2023 +0000 btrfs: record simple quota deltas in delayed refs bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a47be2980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=17a47be2980000 console output: https://syzkaller.appspot.com/x/log.txt?x=13a47be2980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fe3566bcb509ae7764ef@syzkaller.appspotmail.com Fixes: cecbb533b5fc ("btrfs: record simple quota deltas in delayed refs") BTRFS: Transaction aborted (error -2) WARNING: CPU: 0 PID: 5085 at fs/btrfs/extent-tree.c:2984 do_free_extent_accounting fs/btrfs/extent-tree.c:2984 [inline] WARNING: CPU: 0 PID: 5085 at fs/btrfs/extent-tree.c:2984 __btrfs_free_extent+0x32d1/0x3a10 fs/btrfs/extent-tree.c:3358 Modules linked in: CPU: 0 PID: 5085 Comm: syz-executor845 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:do_free_extent_accounting fs/btrfs/extent-tree.c:2984 [inline] RIP: 0010:__btrfs_free_extent+0x32d1/0x3a10 fs/btrfs/extent-tree.c:3358 Code: e8 64 b0 b0 fd 90 0f 0b 90 90 e9 3c f3 ff ff e8 b5 81 ee fd 90 48 c7 c7 00 2e 0b 8c 44 8b 6c 24 18 44 89 ee e8 40 b0 b0 fd 90 <0f> 0b 90 90 4c 8b 24 24 e9 4f f3 ff ff e8 8d 81 ee fd 90 48 c7 c7 RSP: 0018:ffffc9000352f220 EFLAGS: 00010246 RAX: 7e1377ca92db5900 RBX: ffff888024e3c001 RCX: ffff88807c1f0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000352f3f0 R08: ffffffff81585742 R09: fffffbfff1c39994 R10: dffffc0000000000 R11: fffffbfff1c39994 R12: dffffc0000000000 R13: 00000000fffffffe R14: 0000000000000000 R15: ffff888063a8b5c8 FS: 000055556fa3c3c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005648b40a4798 CR3: 0000000023a7e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: run_delayed_tree_ref fs/btrfs/extent-tree.c:1736 [inline] run_one_delayed_ref fs/btrfs/extent-tree.c:1762 [inline] btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2027 [inline] __btrfs_run_delayed_refs+0x117c/0x4670 fs/btrfs/extent-tree.c:2097 btrfs_run_delayed_refs+0xe3/0x2c0 fs/btrfs/extent-tree.c:2209 btrfs_commit_transaction+0xf5d/0x3740 fs/btrfs/transaction.c:2400 sync_filesystem+0x1c8/0x230 fs/sync.c:66 generic_shutdown_super+0x72/0x2d0 fs/super.c:621 kill_anon_super+0x3b/0x70 fs/super.c:1226 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2096 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 ptrace_notify+0x2d2/0x380 kernel/signal.c:2402 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xc6/0x190 kernel/entry/common.c:173 syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline] syscall_exit_to_user_mode+0x273/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fda22d8de67 Code: 08 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fffaba15888 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fda22d8de67 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffaba15940 RBP: 00007fffaba15940 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fffaba16a00 R13: 000055556fa3d700 R14: 431bde82d7b634db R15: 00007fffaba169a4 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup