From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 42D817174F for ; Sun, 5 May 2024 20:59:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714942745; cv=none; b=cAcr6B8RzJkFDNFYj+ZxLQG1v+ofQG5aSyuq3ElgKSaHltOKD7T2QQarzz6B8wrJafvUc60g2mU33SDeAa9fe1SlEwoYsb2M4sDgWibTFPKfnfpfVQe3Cwj1j5qPIXSMNAaDAvTddFH7qmAYZCnPi1ppj3/Xgey6HArp1rBEZyg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714942745; c=relaxed/simple; bh=MuUD9FFWuXSGLaTNUDVSvdvJhbVmlVaZRI2izi/lgkw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=m7rSUKECiEUaKubOs4t9dMS1yA81ULf4ozto6DdIbVP3dEJtECneB7VBUk0xV6nWum/KOGAhl9wASVyzNTsAf+nbUvC4zF/C3gify0KlDuVdPBPcowRXVtRizfhag9ocWznWfHxbLcyO7N5m6WyOSC3g8ypyjpDCSu7u07gBlPQ= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-7dee48ec44dso153275239f.3 for ; Sun, 05 May 2024 13:59:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714942743; x=1715547543; 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=3XZzzFIOk0q1XGbjNkVkwmB0Rx4sKexxyAZqWMu5IjM=; b=RUd/fY39S56S0MRz4KiaZOexajkBpeAqD0QshXA5Il+aBlqkuckginpRtZXm3obhyX QTRgubxNzOtQMuCDa7prbHqAHzCBy+GXFBqfUkr56ifY5jZqRyHdHD+fRn7s63vXjkwq A5uJc+mav0MuY8JaEnlIn5TCntRyf0Ow2vWlmnmNuYK7PUuuWKMMRg/xx6mVQ/T+lJWs /6A+FSlk7UIAM65fM+3VXUFh8zcmtCGFV/BUxyAWplzeOfTiUsHw6IlmA7+0ZPPdU62Z SPrj1q4pLMjjg0D9jQSHNqO19tTiYGJQKOC9HjKOdAqwPbzpUV6+z9zBrnPmUNP0jlvy uVYA== X-Forwarded-Encrypted: i=1; AJvYcCVDyy3yFAfzA4TdzH1PD398+W4sBxrEZSCsk7fmSq60x4+tIJUq9X60EXUkWETr/vX+gRTfayXgd1uL9oo6Sc35EgcZIibWw+BAXGjP8yU= X-Gm-Message-State: AOJu0YxqhvQ/LviWBiQubVRw2rIwPODglPOJdCvATOTPZpT3nAUwQ9Qo UK/cpUtcEHXgVGTjrpCWBP1nBwV1/BYgYq2axbHqWxB/QRIjR+gBO3iN1j38sV710qzNJk3kJmX lTPWMaLeEntBCpRV4jbi8Le8HyCdSxByZoSTh/EiiAZrgs4+Ni7oS2qc= X-Google-Smtp-Source: AGHT+IHlVd3hJWK1UWMadrAPWJdyK/1JHLko1J5M/PynvAhDREjCeIBwi8faa/qySXdPgKHzRQ2YidiOAMaHKEotNz/OdZlTi0Ry Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:8c18:b0:487:5aca:1a49 with SMTP id jl24-20020a0566388c1800b004875aca1a49mr344230jab.1.1714942743591; Sun, 05 May 2024 13:59:03 -0700 (PDT) Date: Sun, 05 May 2024 13:59:03 -0700 In-Reply-To: <000000000000897f760617b91491@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000ac63c0617bb390b@google.com> Subject: Re: [syzbot] [bcachefs?] [ext4?] WARNING: suspicious RCU usage in bch2_fs_quota_read From: syzbot To: bfoster@redhat.com, kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 03ef80b469d5d83530ce1ce15be78a40e5300f9b Author: Kent Overstreet Date: Sat Sep 23 22:41:51 2023 +0000 bcachefs: Ignore unknown mount options bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16f8862f180000 start commit: 7367539ad4b0 Merge tag 'cxl-fixes-6.9-rc7' of git://git.ke.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15f8862f180000 console output: https://syzkaller.appspot.com/x/log.txt?x=11f8862f180000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2f00edef461175 dashboard link: https://syzkaller.appspot.com/bug?extid=a3a9a61224ed3b7f0010 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12376338980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16047450980000 Reported-by: syzbot+a3a9a61224ed3b7f0010@syzkaller.appspotmail.com Fixes: 03ef80b469d5 ("bcachefs: Ignore unknown mount options") For information about bisection process see: https://goo.gl/tpsmEJ#bisection