From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A840AC43217 for ; Tue, 22 Nov 2022 11:56:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233382AbiKVL4q (ORCPT ); Tue, 22 Nov 2022 06:56:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232745AbiKVL4n (ORCPT ); Tue, 22 Nov 2022 06:56:43 -0500 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18A4425C52 for ; Tue, 22 Nov 2022 03:56:43 -0800 (PST) Received: by mail-io1-f69.google.com with SMTP id y5-20020a056602120500b006cf628c14ddso6948429iot.15 for ; Tue, 22 Nov 2022 03:56:43 -0800 (PST) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: eb7081409f94 Linux 6.1-rc6 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=16aec855880000 kernel config: https://syzkaller.appspot.com/x/.config?x=5db36e7087dcccae dashboard link: https://syzkaller.appspot.com/bug?extid=e8e56d5d31d38b5b47e7 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=160ec4c3880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13940efd880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/12e9c825ff47/disk-eb708140.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/107e5e091c9e/vmlinux-eb708140.xz kernel image: https://storage.googleapis.com/syzbot-assets/605ab211617d/bzImage-eb708140.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4d429a6dc170/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e8e56d5d31d38b5b47e7@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 45 at fs/btrfs/block-group.c:3535 do_chunk_alloc fs/btrfs/block-group.c:3535 [inline] WARNING: CPU: 1 PID: 45 at fs/btrfs/block-group.c:3535 btrfs_chunk_alloc.cold+0x1a7/0x329 fs/btrfs/block-group.c:3777 Modules linked in: CPU: 1 PID: 45 Comm: kworker/u4:3 Not tainted 6.1.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: events_unbound btrfs_async_reclaim_metadata_space RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3535 [inline] RIP: 0010:btrfs_chunk_alloc.cold+0x1a7/0x329 fs/btrfs/block-group.c:3777 Code: 89 c7 89 c6 88 44 24 4f e8 5d 2e c7 f7 45 84 ff 0f 84 6e 01 00 00 e8 df 31 c7 f7 44 89 f6 48 c7 c7 c0 5c 98 8a e8 fb a4 f2 ff <0f> 0b e9 10 ff ff ff e8 c4 31 c7 f7 48 8b 54 24 38 b8 ff ff 37 00 RSP: 0018:ffffc90000d6fa70 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 00000000ffffffe4 RCX: 0000000000000000 RDX: ffff888018452080 RSI: ffffffff8164973c RDI: fffff520001adf40 RBP: ffff88807bed9800 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff888075d88898 R13: ffff888020971000 R14: ffffffffffffffe4 R15: 0000000075d88801 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa773a78250 CR3: 000000007d62e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: flush_space+0x9ce/0xe90 fs/btrfs/space-info.c:769 btrfs_async_reclaim_metadata_space+0x53f/0xc00 fs/btrfs/space-info.c:1083 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches