From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 C12EB2F7AD3 for ; Fri, 24 Oct 2025 10:22:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761301326; cv=none; b=SMZ5g4KADHy8Ppx6WZ+xig43iZdPIc1eSgJ/banva0FreQNZ7YgLMQutjV2DnwZvusXfqJ34KQBvvIdTwXseOk9P7bDVPRSwYUmTVw5SGC3AnIl7Vpz/Y6+J8r4wdIifz1gelWRarxbkXs83F90sj6lzxCgTBJIMxyDQluBx89M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761301326; c=relaxed/simple; bh=CrFKdpZ+nCGu6QZV8Xice9FdNitkGbaG+BcLW2qlD2c=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=BvG9A8Poq7SE7OlzK3qh2LucpRV51/8QpoAOxEb/ErNDcH9ZZ6dcdhiNCffjHJC5naxgQhb50aqc4p4v42wOkqYD8RvxD8gOmhu4IZFI/QjoQxr9hIKsKJPXAiQgWcmkHZolwp2zA81Ye2cj6ljkVHIDWsQ9qumYOSGYMkszwRs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-940dbc45bc3so168888839f.3 for ; Fri, 24 Oct 2025 03:22:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761301324; x=1761906124; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=facOez+QkReLZfXLtqNPhFyDd9EzwmWbmRX5wALEyco=; b=SH49oonoRywpALSu50F2n9T51lujUlfjUehgorzGDy1XePwSmB96x7Tb/z/lSD36TM o0p86AOdtUFqjKlofb3QlZ/rIoIiY24ZD+m32ObZq2o9pzGGrq2guP0s9X5xux7FQvJ8 iApeWPaNFln6dDazgQajo7cgq0WPOG7sxbwY2oysfJ3wx09QrmWnMEjj1RiU8ZZV/X7S Rs8lqUlqUZ1m2fInespGp0EdU4IqZOLKQ0eY5fjO79uU7xFUVxNwFvQMLASqmCW8qbnC 1AGmYt/0O9LfHCslOWN5c2NSxuCCG4TcnAjZyst42MO+JGMLcbOYAExbrVgjN6sWvMRu lfPQ== X-Forwarded-Encrypted: i=1; AJvYcCWtc2V8HXx9sUs670S4mUWEG9UYxHtIUINPT5d8YmhGQWmLeJBYrswS5xzJZ7aLWoSSOi6hBoS1cHyx3n0=@vger.kernel.org X-Gm-Message-State: AOJu0YzTUfjnRWs42+0fq/jFoiMC+R+xJYTwwkyDH89TN8OW3ujZuDC9 Chex/wPpnFqh5H+FgXAhOXVsQvcFNngqI2GdfO2QOzUb1oYwyrUVoRWrUKMVKYdY7LxZDLyWi5l K0hVzNrewM3FaPBNgaWx6fFCDdYAb0uD7ezLtM41G2AFPAhMAJS9vk45XIXc= X-Google-Smtp-Source: AGHT+IHMAiSxIYwTye+tYfMz/5XQPuSIO363rUaIkfFQOca323tJvQjK7daRpuoH+upgldpOwZ/xdX5dMPaneXVpUcMLlIgOpJAu Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1847:b0:425:744b:52d3 with SMTP id e9e14a558f8ab-431ebe04162mr22226805ab.11.1761301323907; Fri, 24 Oct 2025 03:22:03 -0700 (PDT) Date: Fri, 24 Oct 2025 03:22:03 -0700 In-Reply-To: <20251024071522.EtAA6%dmantipov@yandex.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68fb534b.050a0220.346f24.00bd.GAE@google.com> Subject: Re: [syzbot] [ocfs2?] kernel BUG in __ocfs2_move_extents_range From: syzbot To: dmantipov@yandex.ru, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: kernel BUG in __ocfs2_move_extents_range ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1363! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5427 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 lr : ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 sp : ffffffc0216171e0 x29: ffffffc021617260 x28: ffffffb8042c2e7c x27: ffffff80df71a740 x26: 0000000000000002 x25: ffffff80e53bc00c x24: ffffff80f209cfb8 x23: dfffffc000000000 x22: 0000000000000168 x21: 0000000000000001 x20: 1ffffff8042c2e40 x19: ffffff80e53bc000 x18: ffffffc011b0fe20 x17: 1ffffff033e18d7e x16: ffffffc0082d0900 x15: 0000000000000000 x14: 00000000fffffffc x13: 0000000000ff0100 x12: 0000000000ff0100 x11: ff00004009c64374 x10: 0000000000000000 x9 : ffffffc009c64374 x8 : ffffff80d06f5340 x7 : 0000000000000000 x6 : ffffffc008dc3fcc x5 : 0000000000000168 x4 : 0000000000000001 x3 : ffffff80df71a740 x2 : ffffff80e53bc000 x1 : 0000000000000002 x0 : 0000000000000168 Call trace: ocfs2_block_group_set_bits+0x510/0x6c4 fs/ocfs2/suballoc.c:1363 ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline] __ocfs2_move_extents_range+0x208c/0x2aac fs/ocfs2/move_extents.c:866 ocfs2_move_extents+0x314/0x7e0 fs/ocfs2/move_extents.c:933 ocfs2_ioctl_move_extents+0x420/0x5ec fs/ocfs2/move_extents.c:1065 ocfs2_ioctl+0x204/0xaf4 fs/ocfs2/ioctl.c:930 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 17ffff5e 97a116fd d4210000 97a116fb (d4210000) ---[ end trace 0000000000000000 ]--- Tested on: commit: 8e6e2188 Linux 6.1.157 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.1.y console output: https://syzkaller.appspot.com/x/log.txt?x=15719be2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=848478f4029d639b dashboard link: https://syzkaller.appspot.com/bug?extid=f2107d999290b8166267 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 userspace arch: arm64 patch: https://syzkaller.appspot.com/x/patch.diff?x=16b69be2580000