From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 D902319ABD1 for ; Sun, 29 Jun 2025 05:10:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751173804; cv=none; b=R9qpbJmvpYsBrmnoWZdqHmwDlLirXf8G9VFxrqwujcbjUC0N5p29Oe41AvMj7fhns3S5h8ikMy2ZUXpCOf2PgKHSFu8c2XWyxgde6uMCilCPSOeYDwd+jXLQ2kW/Fd4U358UJ+V93ve6xxiHL7bEiudKPoSQgxx6M/1EQOCPpE4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751173804; c=relaxed/simple; bh=aNiR3Lw9MNDSlRocyMPoiz+Do8n0Kkd/i/v0ChqN9+Y=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=YRukpj9Mjl8xufJljALtwdkljvRWXzbCldRNM693yCmdxY8y93fyMLswcfAdjqhAPfy+VIttiUudZiFp92oBKIJCM8ffRK1iGBxkXZCYqPJ4eca4afWMQ6Jx1DWDVKesxPx8q5iSeNcMSMIUpWDHdgOVvKcTfMFQrRXFUtChD3I= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-3ddc5137992so13115595ab.2 for ; Sat, 28 Jun 2025 22:10:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751173802; x=1751778602; 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=xfAPSBFodS1baEzZSVSrOtDU6GtBDxIYvoZte8GGu3Q=; b=NNu951EU47wtTlbSvE+NheWrWxCN5A/ZE3xeSZ6g/j/UTCkNAvRe9nL56VBobdjRRj r/e/FpxRyS+K9yUueJvH2eWtwxixuHK0grA7BcQxhvtqtXMGXpy8Eyf5C9ZnC1mBLjBJ EBioeAt79B+utFx7HhrCay32ZffFn45KEOIy4d5U9QtGtX/JL5RieXWWmy+Sn1hgiSbN wZhO0L8YfdS8Sj/eJwm2rPPf0P/vRuX2MtTJ+3KtvHF7l3tcQEUywa3EAx+3RMamoSiw 6jVUlKomSyQYs/S0e6Ue4AnBRc5hxVbE5Ardp2XRVMmxxSNV8lnP90omwK61NvXk4E+N JSzw== X-Forwarded-Encrypted: i=1; AJvYcCUuZgoHJiIfsqHKmFuYZeX/0L19rUOphlY6c7+lsdxGxtgmM3VORZBDcOWBtqTw9jfV3jPJnDy0DBfe@vger.kernel.org X-Gm-Message-State: AOJu0YzJZRgVZ5cd1tr7CFJrWOBUEBmbN5ZEd+opuHsrV19TgAyz1l7r DB6dysBRhm5xhxC1bCuTpIVmrJEYDEHqZ6UrbMZqEzBnLQROPGp6/Dl8oEWUzE1egTX7LZIRc2F Pm/9yfhDcKNzt69i6bEx9MxNliEVJivzK3n9ltaiXTprS3dwGkREiAT+iS48= X-Google-Smtp-Source: AGHT+IF3m9bBlVsKZz0AGHRHyIYQ9S4LRZ3vx30SyuVPQlv33/rFHSqNg/KF/RT1LyGjClooUbalVUkAYG+XvFvDhpNolEOHgkDw Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3d85:b0:3df:2a58:381a with SMTP id e9e14a558f8ab-3df4ab2c75dmr115400835ab.3.1751173802056; Sat, 28 Jun 2025 22:10:02 -0700 (PDT) Date: Sat, 28 Jun 2025 22:10:02 -0700 In-Reply-To: <67f94057.050a0220.2c5fcf.0001.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6860caaa.a00a0220.274b5f.000d.GAE@google.com> Subject: Re: [syzbot] [ext4?] kernel BUG in ext4_ext_insert_extent (2) From: syzbot To: adilger.kernel@dilger.ca, akpm@linux-foundation.org, dave.hansen@linux.intel.com, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu, willy@infradead.org Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 665575cff098b696995ddaddf4646a4099941f5e Author: Dave Hansen Date: Fri Feb 28 20:37:22 2025 +0000 filemap: move prefaulting out of hot write path bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1434a3d4580000 start commit: 739a6c93cc75 Merge tag 'nfsd-6.16-1' of git://git.kernel.o.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1634a3d4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=1234a3d4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d11f52d3049c3790 dashboard link: https://syzkaller.appspot.com/bug?extid=ad86dcdffd6785f56e03 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fb2b0c580000 Reported-by: syzbot+ad86dcdffd6785f56e03@syzkaller.appspotmail.com Fixes: 665575cff098 ("filemap: move prefaulting out of hot write path") For information about bisection process see: https://goo.gl/tpsmEJ#bisection