From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 2B48D199BC for ; Fri, 11 Oct 2024 15:17:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728659824; cv=none; b=fPcsCvaazLlSkm5zLU1ryYMNkHz3RjMvEvOcZyYNhXpqfmxM+P7efxPnxwu7VNzt9BThHxvX/FfMzDn6mOn95nsi0orIId3RDCBU7XEYnkFKMmGYhKdqqN200einiFHKNeWcCogF77HYReozGrUnEmZrMZFvP1FFNeZpfIGslDs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728659824; c=relaxed/simple; bh=btscBbCTnBPEIy8sGxXbXkEpBJp8NPPTiyWTgomGN1k=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=PfLJzOknwHpVzdF4x9qA5sI8Pgw0mNbLRddYJz4fKcuLiirYu6I+nCVb+0jVj+SZYhqjLvCGy0yR4BIxfhGRWiXeniH8QTn8iN2LGwKd6DSVDBX6sLjFrsujRkkoTrn+LxGvKDddfsAYb5g/OJSuUx8Xa4Xgjy/D8b2MdaKsRNk= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3a19665ed40so13193795ab.1 for ; Fri, 11 Oct 2024 08:17:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728659822; x=1729264622; 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=xkhsWbmpSIwr7KtaYgxACGZs+m9NItbxmU6IQ53lGPU=; b=goqGi9nyoRiEm9nRyQBbSvsYDqmAbjsxRs9plikNrW0tetTPxpbW7ibkLsr7/poMjN S/cp1vg3NfMN/haHfo0PBb7pmM86ZjgN+v9LdqyccibVZ+/+uk4aXin/1mSRnTwm5pZl ClHp6OC5gLmw1L+40HJXM8S/htRt6CPpbnEOrGHyas1j4URfsVejlnzOiWul1ZOPH5ig Hh9CqKFN7VgoA2LzHRcBXJ+xZ2KX4b2Dm6xdJgrtiyjN1PEXgFm8htKDh3ApFpsfaFw1 QxKS+yjm3E6ertoG3+aqx6BYxycpapdK30tYGIXg/zcGKsZdak0Qkh1BBGWioxWObX6M hSJg== X-Forwarded-Encrypted: i=1; AJvYcCVnF7eJ65Rk+lfoMOoBwOO/9iZZ1Moz10SQWZ/6FzUJejcKEbVc8wEE4QiXcIQQz0uqZNsvQI3rtYUBmHc=@vger.kernel.org X-Gm-Message-State: AOJu0YyN5v8wOsLXjsmwfICMt56egnS4oarVejqK4mdOyM/oRGiA43cK mNuGCHsscxWIoT9vmcpv7lbPJobX8IFZM5HGWNWM7+qQ99VneydT88+sHcPA+cYPEL7OlNrP8t8 JZRqu6CwpUAyCpzI/H0GVmjPi4UqF3ZyIokpZ/igOzfzdowAzFqjqEJA= X-Google-Smtp-Source: AGHT+IGmZEf0vqRnRJZkBPj6kWrDqVq/f2/pkq9A/frbUV4MWpd1ByHBxl8YzWfT/BkWNzm6c3/er26n6U/pAER1JdIghzhRJtVi Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a45:b0:39f:507a:6170 with SMTP id e9e14a558f8ab-3a3b58aa871mr18180465ab.8.1728659822390; Fri, 11 Oct 2024 08:17:02 -0700 (PDT) Date: Fri, 11 Oct 2024 08:17:02 -0700 In-Reply-To: <0000000000005d16fe061fcaf338@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6709416e.050a0220.4cbc0.000b.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: task hung in hugetlb_wp From: syzbot To: akpm@linux-foundation.org, kasan-dev@googlegroups.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mcgrof@kernel.org, mhiramat@kernel.org, mhocko@suse.com, mike.kravetz@oracle.com, muchun.song@linux.dev, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, vbabka@suse.cz Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 3db978d480e2843979a2b56f2f7da726f2b295b2 Author: Vlastimil Babka Date: Mon Jun 8 04:40:24 2020 +0000 kernel/sysctl: support setting sysctl parameters from kernel command line bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14c7f380580000 start commit: b983b271662b misc: sgi-gru: Don't disable preemption in GR.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16c7f380580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12c7f380580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fb6ea01107fa96bd dashboard link: https://syzkaller.appspot.com/bug?extid=c391aebb8e8e8cd95c55 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=118c6fd0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b6a040580000 Reported-by: syzbot+c391aebb8e8e8cd95c55@syzkaller.appspotmail.com Fixes: 3db978d480e2 ("kernel/sysctl: support setting sysctl parameters from kernel command line") For information about bisection process see: https://goo.gl/tpsmEJ#bisection