From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 DEB59313525 for ; Fri, 24 Oct 2025 11:07:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761304025; cv=none; b=OHMXi8w5CUQGkNh/bAJEcHF1ZG+JZYBujOnw6B9rBrjDqYbspm9Q9CqkLP8Ei43am96lDcGWdaowuT8tVjMpc0vt78Oa+AVKF1gSbtm+2WfrMgfZkV7etQj1UAC8HdMajIi8BXm82lMSJIUY9JSnH+K4Xh04Hi+gbsNmfmuqYRE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761304025; c=relaxed/simple; bh=JfoFFSri8czu3A0PYkF5BUpGGKmXgM8QKcIkvGH4xd0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ScS2kBDhhkG5kw91R4CSNOOGHfTjubYOEibz7czn9rCxGwpLjQDswDXFfg2gf4UYAjhzb0frYF6IReYeHmpfYxJsB+IdLZNdOyBnokziX3JH2//3QND0Xdmtc/Go91FM9+tiZdHL+LOaN5SMswk1O3gEXaKEyVWJo1/W9eJ9k3Q= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-430afaea1beso25297605ab.0 for ; Fri, 24 Oct 2025 04:07:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761304023; x=1761908823; 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=oTgJYuPDdwYzm3TM+QxVGjci0UoRoy/dxD5QJLeH+g8=; b=A5sz3s9iuZ7oMZWHLcEGKO0byRl9aSJQobwFKrNiAhB+3kjciXDwVDTGUPky2y7P5U RfMBMJBQ7UcqyWUihoZFJInhYCFCdtviedbo9OE6izF/XccbyP9n0SkRQETyHhBVVxQT jA1HIysqXqseWm02rpBjq8DkQ0twilFLjuX6RqW5SDiBj/2VvuKpwnPK87jpvHRqXffg scMJdHAh/hwndlmscUV3ym1Z4qlZdDv84Cb8VAgpfJ+sio+7ItGHJ+FemS0qpCsZb4Z4 kmewOiKLuXB54qZACe4aS0dk/M/b02eQdmqpDcwCjMJylPDy7XeoUpGgIwzo9VBv6EuO pKlw== X-Forwarded-Encrypted: i=1; AJvYcCWX7m+Zy/eryoV2Gy+mIhyWTG56kgjtBLUDDLxAdcBk+4AKC74zfIq1cTwLdfHzwVMMC/iaGsiF8fOVII0=@vger.kernel.org X-Gm-Message-State: AOJu0YyEBGhfRGLON1rDyXU+PyHDMAPmTJ6TRil7y38DzrZqg5fPgBxc iUKYeBLXX0fFNB/cW4wqRy/nZST4abU5Ogel8Kc7Pp3Tty2+MU+xypFXvhcBWNm9+EHL+pxKhqy or1vLfNP0iQIhWhztgMST+VnpB0kT/5dMW2ob8K3jnKI0ZOZLxG7nQFQaDRY= X-Google-Smtp-Source: AGHT+IFT1WZQSuuV0sE2ZAXPr99VUHxrd4tXv2lNIUpVEEhagDxQlrO20PfxxcMxXkDa9VkLRQ4RvKm3rpN4wVSGhYS5s9FN32MX Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2702:b0:42f:9574:7c1e with SMTP id e9e14a558f8ab-430c52a253amr381702385ab.27.1761304023077; Fri, 24 Oct 2025 04:07:03 -0700 (PDT) Date: Fri, 24 Oct 2025 04:07:03 -0700 In-Reply-To: <20251024071534.2MOzq%dmantipov@yandex.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68fb5dd7.050a0220.346f24.00c1.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 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:1396! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 7437 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : ocfs2_block_group_set_bits+0x780/0x8ec fs/ocfs2/suballoc.c:1396 lr : ocfs2_block_group_set_bits+0x780/0x8ec fs/ocfs2/suballoc.c:1396 sp : ffff8000a13571a0 x29: ffff8000a1357260 x28: ffff0000dcf1cfb8 x27: ffff0000ca040000 x26: ffff0000db626630 x25: ffff0000c6fcb000 x24: 1ffff0001426ae40 x23: ffff0000c6fcb00c x22: dfff800000000000 x21: 0000000000000002 x20: 00000000000000ff x19: 0000000000000000 x18: 1fffe00033970070 x17: ffff80008ed4d000 x16: ffff80008a937600 x15: 0000000000000001 x14: 0000000000000000 x13: 00000000fffffffc x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d6fe8000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 00000000000000ff x4 : 0000000000000001 x3 : ffff0000e115c0e8 x2 : ffff0000c6fcb000 x1 : 0000000000000002 x0 : 00000000000000ff Call trace: ocfs2_block_group_set_bits+0x780/0x8ec fs/ocfs2/suballoc.c:1396 ocfs2_move_extent fs/ocfs2/move_extents.c:693 [inline] __ocfs2_move_extents_range+0x20ec/0x2abc fs/ocfs2/move_extents.c:866 ocfs2_move_extents+0x314/0x7ec fs/ocfs2/move_extents.c:933 ocfs2_ioctl_move_extents+0x448/0x614 fs/ocfs2/move_extents.c:1065 ocfs2_ioctl+0x1c4/0x738 fs/ocfs2/ioctl.c:946 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:735 el0t_64_sync_handler+0x90/0xfc arch/arm64/kernel/entry-common.c:754 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 17ffffa8 979ad94a d4210000 979ad948 (d4210000) ---[ end trace 0000000000000000 ]--- Tested on: commit: 4fc43deb Linux 6.12.55 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-6.12.y console output: https://syzkaller.appspot.com/x/log.txt?x=16e193e2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c2423b3cd696bce 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=17582d2f980000